US Pat. No. 9,516,786

ELECTRIC EQUIPMENT AND AIR CONDITIONER

TOSHIBA CARRIER CORPORATI...

1. An air conditioner comprising:
a blower comprising a fan configured to suck air from a shaft direction on an inlet side and blow the air out in a circumferential
direction on an outlet side;

a heat exchanger;
an electric component box comprising a heat sink attached at a position opposing the blower and a heat sink hole through which
the heat sink projects outward of the electric component box, wherein the electric component box and the heat sink are arranged
upstream of the heat exchanger and face the inlet side of the fan.

US Pat. No. 9,157,650

HEAT SOURCE APPARATUS

Toshiba Carrier Corporati...

1. A heat source apparatus of a heat source system made up of a heat source machine side and a load facility side, the heat
source apparatus comprising:
a heat source machine; and
a heat source controller,
wherein the heat source machine includes: a water heat exchanger that exchanges heat between heat source water and a refrigerant
circulating through a refrigeration cycle; a primary pump that delivers heat source water to the water heat exchanger; and
a heat source machine control device that operates based on information from the water heat exchanger and the primary pump,
and

wherein the heat source controller is connected to the heat source machine control device on a heat source side and to the
load facility side so as to determine, after the primary pump is activated, whether or not the heat source water is normally
fed by the primary pump based on a temperature difference between the heat source water before and after the water heat exchanger
or a pressure difference between the heat source water before and after the water heat exchanger, and so as to then operate
the refrigeration cycle after normal water feed is confirmed through water feed determination.

US Pat. No. 9,127,867

HEAT SOURCE UNIT

Toshiba Carrier Corporati...

1. A heat source unit comprising:
a plurality of pairs of air heat exchangers, each pair including at least one finned tube, each air heat exchanger including
a flat plate part and bent strips, the bent strips being configured of opposite edge portions of the flat plate part bent
in a same direction, and each air heat exchanger being substantially in a shape of a letter U as viewed from above;

shield plates configured to close a space between the bent strips of each pair of air heat exchangers and the bent strips
of an adjacent pair of air heat exchangers; and

a plurality of refrigeration cycles, each refrigeration cycle comprising one of the pairs of air heat exchangers and refrigeration
cycle components;

a first water heat exchanger comprising a first water passage and a plurality of first refrigerant passages; and
a second water heat exchanger comprising a second water passage and a plurality of second refrigerant passages, the second
water passage connected to the first water passage in series, wherein:

the air heat exchangers within each pair are arranged in a direction facing each other, with opposed bent strips of the air
heat exchangers within each pair extending toward each other, and having a gap between upper ends of the air heat exchangers
within each pair that is wider than a gap between lower ends of the air heat exchangers within each pair;

the plurality of pairs of air heat exchangers are arranged side by side along a direction orthogonal to the direction in which
the air heat exchangers of each pair face each other, and the plurality of pairs are spaced apart such that air flows between
the bent strips of one pair of air heat exchangers and an adjacent pair of air heat exchangers; and

a first set of the plurality of refrigeration cycles is connected to the refrigerant passages of the first water heat exchanger
and a second set of the plurality of refrigeration cycles is connected to the refrigerant passages of the second water heat
exchanger.

US Pat. No. 9,395,107

COMBINED CASCADE REFRIGERATION CYCLE APPARATUS

TOSHIBA CARRIER CORPORATI...

1. A combined cascade refrigeration cycle apparatus comprising:
a first high-temperature side refrigeration circuit and a second high-temperature side refrigeration circuit, each comprising
a water-refrigerant heat exchanger configured to conduct heat exchange of a refrigerant discharged from a high-temperature-side
compressor for water;

a first low-temperature side refrigeration circuit and a second low-temperature side refrigeration circuit, each comprising
an evaporator composed of a heat exchanger;

a housing comprising the first high-temperature side refrigeration circuit, the second high-temperature side refrigeration
circuit, the first low-temperature side refrigeration circuit and the second low-temperature side refrigeration circuit mounted
thereon;

a first cascade heat exchanger comprising a high-temperature refrigerant flow channel, a first low-temperature refrigerant
flow channel and a second low-temperature refrigerant flow channel, the high-temperature refrigerant flow channel of the first
cascade heat exchanger communicating with the first high-temperature side refrigeration circuit, the first low-temperature
refrigerant flow channel of the first cascade heat exchanger communicating with the first low-temperature side refrigeration
circuit via a refrigerant pipe;

a second cascade heat exchanger comprising a high-temperature refrigerant flow channel, a first low-temperature refrigerant
flow channel and a second low-temperature refrigerant flow channel, the high-temperature refrigerant flow channel of the second
cascade heat exchanger communicating with the second high-temperature side refrigeration circuit, the second low-temperature
refrigerant flow channel of the second cascade heat exchanger communicating with the second low-temperature side refrigeration
circuit via a refrigerant pipe; and

a hot-water pipe letting water or hot water through a water-side flow channel of the respective water-refrigerant heat exchangers
of the first high-temperature side refrigeration circuit and the second high-temperature side refrigeration circuit,

wherein a branching refrigerant pipe diverging from the refrigerant pipe communicating the first low-temperature refrigerant
flow channel of the first cascade heat exchanger with the first low-temperature side refrigeration circuit is connected to
the first low-temperature refrigerant flow channel of the second cascade heat exchanger,

a branching refrigerant pipe diverging from the refrigerant pipe communicating the second low-temperature refrigerant flow
channel of the second cascade heat exchanger with the second low-temperature side refrigeration circuit is connected to the
second low-temperature refrigerant flow channel of the first cascade heat exchanger, and

the first low-temperature side refrigeration circuit and the second low-temperature side refrigeration circuit are controlled
in such a way that, when one of the low-temperature side refrigeration circuits conducts a defrosting operation of its evaporator,
the other low-temperature side refrigeration circuit releases heat in the first cascade heat exchanger and the second cascade
heat exchanger.

US Pat. No. 9,080,570

HERMETIC COMPRESSOR AND REFRIGERATION CYCLE EQUIPMENT USING THE SAME

Toshiba Carrier Corporati...

1. A hermetic compressor comprising:
a cylindrical closed container;
an electric motor including a stator and a rotator, the stator and the rotator being housed on a one end side in an axial
direction in the closed container;

a compression mechanism housed on another end side in the axial direction of the closed container and driven by the electric
motor via a rotating shaft; and

a bearing member provided between the one end in the axial direction of the closed container and the electric motor and including
a bearing portion pivotally supporting the rotating shaft and a bearing frame portion holding the bearing portion,

wherein the bearing frame portion includes a portion having high rigidity and a portion having low rigidity in a circumferential
direction, and the bearing frame portion is arranged in the closed container such that a direction in which a load acting
on the bearing portion becomes maximum coincides with a direction in which rigidity of the bearing frame portion is high,
and

the high rigidity portion is located within a range of 270° to 320° in a rotation direction of the rotating shaft with respect
to a position (0°) of a vane groove in a cylinder of the compression mechanism as viewed from an axial direction of the rotating
shaft.

US Pat. No. 9,664,192

ROTARY COMPRESSOR AND REFRIGERATION CYCLE DEVICE

TOSHIBA CARRIER CORPORATI...

7. A refrigeration cycle device comprising:
a rotary compressor;
a condenser;
an expansion device;
an evaporator; and
a refrigerant pipe by which the rotary compressor, the condenser, the expansion device and the evaporator communicate, wherein
the rotary compressor comprises:
a cylinder comprising a cylinder chamber;
a roller which is housed in the cylinder chamber and eccentrically rotates by rotation of a rotational axis;
a first vane and a second vane which come into contact with the roller, reciprocate, partition the cylinder chamber into a
compression side and an absorption side and overlap each other in an axial direction of the rotational axis; and

a coil spring which biases the first and second vanes toward the roller,
first protrusion portions having an equal length in the axial direction are provided on both end sides of a posterior end
portion of the first vane along the axial direction,

second protrusion portions having an equal length in the axial direction are provided on both end sides of a posterior end
portion of the second vane along the axial direction,

the first protrusion portions and the second protrusion portions protrude to the soil spring side, and
the first and second vanes are attached to the coil spring by overlapping the first protrusion portion of the first vane in
an end portion on the second vane side in the axial direction with the second protrusion portion of the second vane in an
end portion on the first vane side in the axial direction and fitting the overlapped protrusion portions into the coil spring.

US Pat. No. 9,593,869

CASCADE REFRIGERATION CYCLE APPARATUS

TOSHIBA CARRIER CORPORATI...

1. A cascade refrigeration cycle apparatus comprising:
a high-temperature-side refrigeration circuit including:
a high-temperature-side compressor,
a high-temperature-side four-way selector valve,
a high-temperature-side condenser,
a high-temperature-side expander, and
a primary-side channel of a cascade heat exchanger,
wherein said high-temperature-side compressor, said high-temperature-side four-way selector valve, said high-temperature-side
condenser, said high-temperature-side expander and said primary-side channel are in communication with one another via high-temperature-side
refrigerant piping, and

wherein in a refrigeration cycle operation, the high-temperature-side refrigeration circuit circulates a first refrigerant
in a first direction, the first direction being a direction in which the first refrigerant circulates sequentially from the
high-temperature-side compressor through the high-temperature-side four-way selector valve, the high-temperature-side condenser,
the high-temperature-side expander, and the primary-side channel of the cascade heat exchanger and back to the high-temperature-side
compressor;

a low-temperature-side refrigeration circuit including:
a low-temperature-side compressor,
a low-temperature-side four-way selector valve,
a secondary-side channel of the cascade heat exchanger,
a low-temperature-side expander, and
an air-heat exchanger;
wherein said low-temperature-side compressor, said low-temperature-side four-way selector valve, said secondary-side channel
of the cascade heat exchanger, said low-temperature-side expander and said air-heat exchanger are in communication with one
another via low-temperature-side refrigerant piping,

wherein in the refrigeration cycle operation, the low-temperature-side refrigeration circuit circulates a second refrigerant
in a second direction, the second direction being a direction in which the second refrigerant circulates sequentially from
the low-temperature-side compressor through the low-temperature-side four-way selector valve, the secondary-side channel in
the cascade heat exchanger, the low-temperature-side expander, and the air-heat exchanger and back to the low-temperature-side
compressor;

wherein in the refrigeration cycle operation, the high-temperature-side four-way selector valve and the low-temperature-side
four-way selector valve are in a first state position,

wherein the apparatus further comprises:
an inverter connected to at least one of the high-temperature-side compressor of the high-temperature-side refrigeration circuit
and the low-temperature-side compressor of the low-temperature-side refrigeration circuit;

a bypass pipe provided in the high-temperature-side refrigeration circuit which enables communication between:
the high-temperature-side refrigerant piping at a first point between the high-temperature-side four-way selector valve and
the high-temperature-side condenser, and

the high-temperature-side refrigerant piping at a second point between the primary-side channel of the cascade heat exchanger
and the high-temperature-side four-way selector valve;

a flow control device provided in the bypass pipe; and
a controller which controls the inverter so that a set operating frequency for the high-temperature-side compressor is higher
than a set operating frequency for the low-temperature-side compressor when the control section starts the refrigeration cycle
operation;

wherein the controller operates the apparatus in a defrosting operation,
wherein in the defrosting operation, the high-temperature side four-way selector valve and the low-temperature-side four-way
selector valve are switched from said first state position to a second state position, to thereby reverse the first refrigerant
and the second refrigerant in directions opposite to the first and second direction, respectively, and

wherein when the control section ends the defrosting operation, the controller opens the flow control device to allow the
first refrigerant to flow through the bypass pipe, switches the high-temperature side four-way selector valve and the low-temperature-side
four-way selector valve back to the first state position, starts operating the low-temperature-side compressor, closes the
flow control device, and starts operating the high-temperature-side compressor, in this order.

US Pat. No. 9,745,980

HERMETIC-TYPE COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

Toshiba Carrier Corporati...

1. A hermetic type compressor comprising a closed case, a motor portion which is housed in the closed case, and a compression
mechanism portion which is housed in the closed case and is driven by a rotating shaft coupled to the motor portion so as
to compress a working fluid,
the compression mechanism portion including a first bearing, a first cylinder, a partition plate, a second cylinder, and a
second bearing, which are provided in order along an axial direction of the rotating shaft, and having a first cylinder chamber
formed in the first cylinder closed at two ends by the first bearing and the partition plate so as to compress the working
fluid and a second cylinder chamber formed in the second cylinder closed at two ends by the partition plate and the second
bearing so as to compress the working fluid, in which the working fluid compressed in the first cylinder chamber and the working
fluid compressed in the second cylinder chamber are discharged into a space in the closed case, wherein

an in-partition-plate space which communicates with the space in the closed case is formed inside the partition plate,
the compressor is provided, as discharge ports through which the working fluid compressed in the first cylinder chamber is
discharged into the space in the closed case, with a first bearing discharge port formed in the first bearing and a first
partition plate discharge port formed in the partition plate,

the compressor is provided, as discharge ports through which the working fluid compressed in the second cylinder chamber is
discharged into the space in the closed case, with a second bearing discharge port formed in the second bearing and a second
partition plate discharge port formed in the partition plate, and

a cross-sectional area of the first partition plate discharge port is formed to be smaller than a cross-sectional area of
the first bearing discharge port, and a cross-sectional area of the second partition plate discharge port is formed to be
smaller than a cross-sectional area of the second bearing discharge port.

US Pat. No. 9,683,751

OUTDOOR UNIT FOR MULTI-TYPE AIR CONDITIONER

TOSHIBA CARRIER CORPORATI...

1. A multi-type air conditioner including a plurality of indoor units and a plurality of outdoor units which are connected
via refrigerant piping, each of the outdoor units comprising:
a compressor;
a four-way valve;
an outdoor heat exchanger;
an outdoor expansion valve;
a liquid tank;
an accumulator;
a shutoff valve provided for a refrigerant pipe between a liquid refrigerant inlet/outlet port and the liquid tank in each
of the outdoor units; and

a first bypass circuit provided in the refrigerant pipe bypassing the shutoff valve through a capillary tube to connect a
liquid refrigerant inlet/outlet port side to an upper portion of the refrigerant pipe, the first bypass circuit comprising
a standing portion extending upward in a gravity direction from the upper portion of the refrigerant pipe.

US Pat. No. 9,851,133

REFRIGERATION CYCLE APPARATUS

TOSHIBA CARRIER CORPORATI...

1. A refrigeration cycle apparatus comprising:
a refrigeration cycle in which a compressor, a condenser, a pressure reducing unit and an evaporator are connected to each
other by pipes, and an accumulator is provided at a low-pressure-side pipe between the evaporator and the compressor;

a fusible plug attached to the low-pressure-side pipe; and
a heat-quantity reduction member which reduces quantity of heat to be transmitted to the fusible plug,
the heat-quantity reduction member being one or more sheet-like endothermic members which are wound on the fusible plug.

US Pat. No. 9,719,512

HERMETICALLY SEALED ROTARY COMPRESSOR AND REFRIGERATION CYCLE DEVICE

TOSHIBA CARRIER CORPORATI...

1. A hermetically sealed rotary compressor comprising:
a compressor body comprising a well-closed container;
an electric motor unit accommodated in an upper part of the well-closed container;
a compression mechanism section comprising a cylinder forming a cylinder chamber and a roller driven by the electric motor
unit through a shaft to perform an eccentric motion in the cylinder chamber, the compression mechanism section being accommodated
in a lower end portion of the well-closed container;

first, second, third, and fourth support legs welded to the lower end portion of the well-closed container, each of the first,
second, third, and fourth support legs comprising a mounting through hole for attaching and securing the hermetically sealed
rotary compressor to a mounting spot, and the first, second, third, and fourth support legs being arranged at regular intervals
along a circumference of the well-closed container;

an accumulator disposed on a lateral part of the well-closed container, the lateral part corresponding to a center between
the first and second support legs, which are adjacent to each other;

an upper bearing member disposed between the upper part of the well-closed container and the electric motor unit, the upper
bearing member comprising:

a rolling bearing engaged with the shaft;
a support frame attached to an inner peripheral wall of the well-closed container; and
a housing attached to the inner peripheral wall of the well-closed container by the support frame, the housing supporting
the rolling bearing, and the housing including a bearing holding portion and mounting leg portions;

a refrigerant pipe provided on the upper part of the well-closed container, to which a gas refrigerant containing an oil mist
travels from the compression mechanism section; and

an oil separator plate disposed between the refrigerant pipe and the rolling bearing,
wherein:
the bearing holding portion comprises a ring-shaped fitting portion fitted on the rolling bearing and an inclined receiving
portion, the inclined receiving portion being bent outward from an upper end of the fitting portion and being inclined so
that an inner peripheral end of an upper part of the inclined receiving portion is lower than an outer peripheral end of the
upper part of the inclined receiving portion,

the mounting leg portions each have a predetermined width, are located above the bearing holding portion, are combined with
an outer peripheral end of the bearing holding portion, and are attached to the support frame,

the support frame includes a flat circular ring plate to which the mounting leg portions are attached,
an overall height H of the compressor body, which is a height measured from a bottom surface of the first, second, third,
and fourth support legs to an upper end of the compressor body, is set to be at least 2.5 times greater than an outer diameter
D of the compressor body (H/D?2.5),

a height Hg of a center of gravity of the compressor body, which is a height measured from the bottom surface of the first,
second, third, and fourth support legs to the center of gravity of the compressor body, is set to be ½ or less than the overall
height H of the compressor body (Hg?H/2), and

the hermetically sealed rotary compressor satisfies the following expression (1):
Rc/cos ?
where Rb is a distance from a longitudinal central axis of the compressor body to a center of the mounting through hole of
each of the first, second, third, and fourth support legs, Rc is a distance from the longitudinal central axis of the compressor
body to an outer peripheral surface of the compressor body, L is a distance from the longitudinal central axis of the compressor
body to a longitudinal central axis of the accumulator, and ? is an angle (45°) of half an angle formed between the first
and second support legs about the longitudinal central axis of the compressor body.

US Pat. No. 10,001,285

OUTDOOR UNIT OF AIR CONDITIONER

TOSHIBA CARRIER CORPORATI...

1. An outdoor unit of an air conditioner comprising:a base plate which forms a base portion of the outdoor unit;
a first housing attached onto the base plate;
a second housing stacked on the first housing; and
a top plate which is attached onto the second housing and forms a ceiling portion of the outdoor unit,
wherein
the first housing includes:
a first side portion attached onto the base plate;
a first partition plate which is attached onto the base plate and divides a space surrounded by the first side portion into a first heat exchange compartment and a first machine compartment;
a first heat exchanger attached onto the base plate and accommodated in the first heat exchange compartment;
a first air blower accommodated in the first heat exchange compartment;
a first air-blower support frame which is attached onto the base plate and supports the first air blower and the first heat exchanger; and
a compressor provided on the base plate and accommodated in the first machine compartment, and
the first air-blower support frame includes:
a first base-plate attachment portion attached onto the base plate, at a lower end of the first air-blower support frame;
a first upper-portion attachment portion at an upper end of the first air-blower support frame; and
a first blower attachment portion which supports the first-air blower at a position between the lower end of the first air-blower support frame and the upper end of the first air-blower support frame, and
the second housing includes:
a second side portion stacked on the first side portion;
a second partition plate which is stacked on the first partition plate and divides a space surrounded by the second side portion into a second heat exchange compartment and a second machine compartment;
a second heat exchanger stacked on the first heat exchanger and accommodated in the second heat exchange compartment;
a second air blower accommodated in the second heat exchange compartment; and
a second air-blower support frame which is stacked on the first air-blower support frame and supports the second air blower and the second heat exchanger, and
the second air-blower support frame includes:
a second base-plate attachment portion attached onto the first upper-portion attachment portion of the first air-blower support frame, at a lower end of the second air-blower support frame;
a second upper-portion attachment portion at an upper end of the second air-blower support frame; and
a second blower attachment portion which supports the second air-blower at a position between the lower end of the second air blower support frame and the upper end of the second air-blower support frame.

US Pat. No. 9,982,908

AIR CONDITIONER

TOSHIBA CARRIER CORPORATI...

1. An air conditioner comprising:a main body incorporating a heat exchanger and installed in a ceiling;
a decorative panel attached to a lower edge of the main body, exposed to a room through the ceiling, and including a discharge port discharging air heat-exchanged in the heat exchanger to the room; and
a drain pan including a thermal insulating member and a synthetic resin member and comprising a drain outlet, the synthetic resin member coating the thermal insulating member and being thinner than the thermal insulating member, wherein
the drain pan comprises a recess for receiving drain water produced in the heat exchanger, a communication port provided on a periphery of the recess and communicating with the discharge port of the decorative panel, a wall standing between the periphery of the recess and the communication port, and being composed of the synthetic resin member, and a drain cap attached to the drain outlet, and
the drain cap comprises a claw and a tongue-like member projecting from a periphery of the drain cap, the synthetic resin member constituting the drain pan comprises a first boss and a second boss penetrating the thermal insulating member, the claw of the drain cap is detachably engaged with an end of the first boss, and the tongue-like member of the drain cap is fixed to the second boss with a screw.

US Pat. No. 10,072,883

HEAT SOURCE UNIT

Toshiba Carrier Corporati...

1. A heat source unit comprising:a first water heat exchanger which comprises a first water passage including a plurality of first water distributing paths, a first refrigerant passage including a plurality of first refrigerant distributing paths, and a second refrigerant passage including a plurality of second refrigerant distributing paths, the plurality of first refrigerant distributing paths and the plurality of second refrigerant distributing paths being alternately located among one another and the plurality of first water distributing paths;
a second water heat exchanger which comprises a second water passage including a plurality of second water distributing paths, a third refrigerant passage including a plurality of third refrigerant distributing paths, and a fourth refrigerant passage including a plurality of fourth refrigerant distributing paths, the second water passage of the second water heat exchanger connected to the first water passage of the first water heat exchanger in series, and the plurality of third refrigerant distributing paths and the plurality of fourth refrigerant distributing paths being alternately located among one another and the plurality of second water distributing paths;
a first refrigeration cycle which comprises a first compressor, a first four-way valve, a pair of first air heat exchangers, and a first expansion valve wherein refrigerant discharged from the first compressor circulates through the first four-way valve, the pair of first air heat exchangers, the first expansion valve, the first refrigerant passage of the first water heat exchanger, and the first four-way valve and returns to the first compressor, each of the first air heat exchangers including a flat plate part and bent strips, the bent strips comprising opposite edge portions of the flat plate part in a same direction, and each of the first air heat exchangers being arranged in directions facing each other, with opposed bent strips extending toward each other, wherein a gap between upper ends of the first air heat exchangers is wider than a gap between the lower ends of the first air heat exchangers;
a second refrigeration cycle which comprises a second compressor, a second four-way valve, a pair of second air heat exchangers, and a second expansion valve, wherein refrigerant discharged from the second compressor circulates through the second four-way valve, the pair of second air heat exchangers, the second expansion valve, the second refrigerant passage of the first water heat exchanger, and the second four-way valve and returns to the second compressor, each of the second air heat exchangers including a flat plate part and bent strips, the bent strips comprising opposite edge portions of the flat plate part in a same direction, and each of the second air heat exchangers being arranged in directions facing each other, with opposed bent strips extending toward each other, wherein a gap between upper ends of the second air heat exchangers is wider than a gap between the lower ends of the second air heat exchangers;
a third refrigeration cycle which comprises a third compressor, a third four-way valve, a pair of third air heat exchangers, and a third expansion valve, wherein refrigerant discharged from the third compressor circulates through the third four-way valve, the pair of third air heat exchangers, the third expansion valve, the third refrigerant passage of the second water heat exchanger, and the third four-way valve and returns to the third compressor, each of the third air heat exchangers including a flat plate part and bent strips, the bent strips comprising opposite edge portions of the flat plate part in a same direction, and each of the third air heat exchangers being arranged in directions facing each other, with opposed bent strips extending toward each other, wherein a gap between upper ends of the third air heat exchangers is wider than a gap between the lower ends of the third air heat exchangers;
a fourth refrigeration cycle which comprises a fourth compressor, a fourth four-way valve, a pair of fourth air heat exchanger, and a fourth expansion valve, wherein refrigerant discharged from the fourth compressor circulates through the fourth four-way valve, the pair of fourth air heat exchanger, the fourth expansion valve, the fourth refrigerant passage of the second water heat exchanger, and the fourth four-way valve and returns to the fourth compressor, each of the fourth air heat exchangers including a flat plate part and bent strips, the bent strips comprising opposite edge portions of the flat plate part in a same direction, and each of the fourth air heat exchangers being arranged in directions facing each other, with opposed bent strips extending toward each other, wherein a gap between upper ends of the fourth air heat exchangers is wider than a gap between the lower ends of the fourth air heat exchangers;
a first blower provided between the pair of first heat exchangers and configured to draw air through the pair of first heat exchangers and to discharge the air through the gap between upper ends of the pair of first air heat exchangers;
a second blower provided between the pair of second heat exchangers and configured to draw air through the pair of second heat exchangers and to discharge the air through the gap between the upper ends of the pair of second air heat exchangers;
a third blower provided between the pair of third heat exchangers and configured to draw air through the pair of third heat exchangers and to discharge the air through the gap between upper ends of the pair of third air heat exchangers;
a fourth blower provided between the pair of fourth heat exchangers and configured to draw air through the pair of fourth heat exchangers and to discharge the air through the gap between upper ends of the pair of fourth air heat exchangers; and
shield plates configured to close a space between the bent strips of each pair of air heat exchangers and the bent strips of an adjacent pair of air heat exchangers.

US Pat. No. 9,879,675

ROTARY COMPRESSOR AND REFRIGERATING CYCLE APPARATUS

TOSHIBA CARRIER CORPORATI...

1. A rotary compressor comprising an electric motor portion and a compression mechanism portion joined to the electric motor
portion through a rotation axis in a sealed case, wherein
the compression mechanism portion comprises a main bearing and an auxiliary bearing pivotally supporting the rotation axis,
first and second cylinders between the main bearing and the auxiliary bearing, and an intermediate partition plate interposed
between the first and second cylinders,

the first cylinder comprises a first cylinder chamber, a first roller moving eccentrically within the first cylinder chamber,
and a first vane abutting the first roller and partitioning an inside of the first cylinder chamber into a first compression
chamber and a first intake chamber,

the second cylinder comprises a second cylinder chamber, a second roller moving eccentrically within the second cylinder chamber,
and a second vane abutting the second roller and partitioning an inside of the second cylinder chamber into a second compression
chamber and a second intake chamber,

the main bearing includes a first ring groove,
the auxiliary bearing includes a second ring groove,
the first vane is disposed by stacking first and second divided vanes in a height direction of the first cylinder, which is
an axis direction of the rotation axis,

the second vane is disposed by stacking third and fourth divided vanes in a height direction of the second cylinder, which
is the axis direction of the rotation axis,

where a height dimension of the first divided vane is H, a height dimension of the second divided vane is H, and a minute
gap between a height dimension of the first cylinder and a height dimension of the stacked first and second divided vanes
is L, a proportion of the minute gap L to the height dimension H per one divided vane is set to satisfy an expression (1)
below, and

where a height dimension of the third divided vane is H, a height dimension of the fourth divided vane is H, and a minute
gap between a height dimension of the second cylinder and a height dimension of the stacked third and fourth divided vanes
is L, a proportion of the minute gap L to the height dimension H per one divided vane is set to satisfy the expression (1)
below,

0.001

US Pat. No. 10,211,718

POWER SUPPLY WHICH STARTS OR STOPS BOOSTING BASED ON AN UNBALANCED STATE OF THE AC SOURCE

TOSHIBA CARRIER CORPORATI...

1. A power supply apparatus comprising:a rectifier circuit configured to rectify voltages of a three-phase AC source;
a booster circuit including a series circuit of a reactor and a first switch element to be connected to output ends of the rectifier circuit, a diode for backflow prevention provided in a current path between the first switch element and a load, and a capacitor connected in parallel with the load, and configured to boost an output voltage of the rectifier circuit by turning on/off of the first switch element, and output the output voltage of the rectifier circuit without boosting the output voltage by continuously keeping the first switch element in the off-state; and
a controller configured to, when an effective value of an input current flowing into the booster circuit rises to a value greater than or equal to a second set value, start boosting of the booster circuit and, after the start, when the effective value lowers to a value lower than a first set value lower than the second set value, stop boosting of the booster circuit and, if the three-phase AC source is in an unbalanced state, set the first set value to a value lower than usual.

US Pat. No. 10,094,860

SYSTEM AND METHOD FOR ESTIMATING ENERGY CONSUMPTION OF AN HVAC SYSTEM

CARRIER CORPORATION, Far...

1. A method for determining energy consumption in an HVAC system, the HVAC system comprising at least one HVAC component and a controller in electrical communication with the at least one HVAC component, the at least one HVAC component including at least one component characteristic, the method comprising:(a) determining, by the controller, a system characteristic value;
(b) obtaining, by the controller, operational condition values, wherein the operational condition values comprise an incoming heat exchange fluid temperature value, an outdoor air temperature value, and a soil temperature value, wherein the incoming heat exchange fluid temperature value is obtained by estimating the incoming heat exchange fluid temperature value by the controller, wherein the incoming heat exchange fluid temperature value is estimated by applying a sinusoidal function having a phase angle shift between the outdoor air temperature and the soil temperature;
(c) determining, by the controller, a base power consumption value based at least in part on the system characteristic value and the operational condition values;
(d) determining, by the controller, an operational run time for the HVAC system;
(e) determining, by the controller, an estimated energy consumption based at least in part on the operational run time and the base power consumption value; and
(f) sending, by the controller, operating commands to the at least one HVAC component to cause the at least one HVAC component to operate in a selected heating or cooling mode, wherein the mode is selected by the controller based at least in part on the estimated energy consumption.

US Pat. No. 10,180,271

MULTIPLE CYLINDER ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

TOSHIBA CARRIER CORPORATI...

1. A multiple cylinder rotary compressor comprising:a compressor body including a hermetic case, the hermetic case housing inside a rotating shaft rotatable around a central axis,
an electric motor section connected to one end side of the rotating shaft, and
a compression mechanism body connected to a second end side of the rotating shaft;
the compression mechanism body including:
a first compression mechanism section, a second compression mechanism section adjacent to the first compressor mechanism, and a third compression mechanism section adjacent to the second compressor mechanism, and arranged so as to stack with each other in an axial direction of the rotating shaft,
a first partition plate disposed between the first compression mechanism section and the second compression mechanism section, and a second partition plate disposed between the second compression mechanism section and the third compression mechanism section, wherein a distance of the second partition plate from the electric motor section is greater than a distance of the first partition plate from the electric motor section, and
a primary bearing and a secondary bearing supporting the rotating shaft on both end sides of the compression mechanism body along the axial direction of the rotating shaft; and
the compression mechanism sections each including:
a cylinder forming inside a respective cylinder chamber,
an eccentric section, attached to the rotating shaft and disposed in the respective cylinder chamber,
a roller, fitted to the eccentric section and rotating eccentrically within the respective cylinder chamber during a rotation of the rotating shaft, and
a blade dividing the inside of the cylinder chamber into two, wherein
the second partition plate is formed as one component that is not divided and constitutes a partition plate bearing supporting the rotating shaft by keeping the second partition plate in sliding contact with an outer peripheral surface of the rotating shaft,
the eccentric sections, disposed in the respective cylinder chambers of the first compression mechanism section and the second compression mechanism section, are formed integrally with the rotating shaft,
the eccentric section, disposed in the respective cylinder chamber of the third compression mechanism, is formed as a separate component from the rotating shaft and attached to the rotating shaft
a suction passage, supplying a working fluid to the second compression mechanism section and the third compression mechanism section, is formed in the second partition plate, wherein the second partition plate does not have a discharge hole, and
wherein the first partition plate has a discharge hole.

US Pat. No. 9,146,040

HEAT PUMP ENABLED DESICCANT DEHUMIDIFICATION SYSTEM

CARRIER CORPORATION, Far...

13. A method comprising:
flowing a process air stream past an exposed surface of a desiccant coated passive heat transfer device in physical and thermal
contact with a heat pump;

adsorbing moisture from the process air stream onto the desiccant coating;
pumping a heat of condensation from the adsorbed moisture across the heat pump;
determining a saturation of the desiccant coating of the passive heat transfer device;
reversing the heat pump in response to saturation of the desiccant material on the first passive heat transfer device;
flowing a regenerative air stream past the exposed surface of the desiccant coated passive heat transfer device;
desorbing the moisture into the regenerative air stream using the heat of condensation pumped across the heat pump to provide
a heat of evaporation to recharge the desiccant.

US Pat. No. 9,250,002

SYSTEM AND METHOD FOR CONTROLLING AN ABSORPTION CHILLER CONFIGURED TO SIMULTANEOUSLY PRODUCE COOLING AND HEATING

CARRIER CORPORATION, Far...

1. A system for controlling an absorption chiller configured to simultaneously provide cooling and heating comprising:
a cooling feedback control loop for determining a desired adjustment to system cooling capacity based on a difference between
a desired cooling capacity and a realized cooling capacity;

a heating feedback control loop for determining a desired adjustment to system heating capacity based on a difference between
a desired heating capacity and a realized heating capacity; and

a multiple-valve controller for simultaneously adjusting an energy input valve position, a hot water valve position, and a
chilled water valve position based on the desired adjustment to system cooling capacity, the desired adjustment to system
heating capacity, and one or more performance maps characterizing relationships between heat energy input to cooling at a
plurality of energy input valve positions, hot water valve positions, and chilled water valve positions and characterizing
relationships between heat energy input to heating at a plurality of energy input valve positions, hot water valve positions,
and chilled water valve positions.

US Pat. No. 9,316,419

EXPANDER SYSTEM

Carrier Corporation, Far...

1. An apparatus (20) comprising:
a compressor (22) having a suction port (24) and a discharge port (26);

a heat rejection heat exchanger (30);

a heat absorption heat exchanger (60); and

at least one expansion-compression device (40; 200) coupling the heat absorption heat exchanger to the heat rejection heat exchanger and to the compressor and comprising:

a pivoting member (98) mounted for reciprocal rotation in opposite first and second directions about an axis;

a first variable volume chamber (80A) having an associated first wall formed by a first side of a first portion of the pivoting member;

a second variable volume chamber (80B) having an associated second wall formed by a second side of the first portion of the pivoting member;

a third variable volume chamber (80C) having an associated third wall formed by a first side of a second portion of the pivoting member; and

a fourth variable volume chamber (80D) having an associated fourth wall formed by a second side of the second portion of the pivoting member,

the expander apparatus having an asymmetric construction wherein the respective first and second walls of the first and second
chambers differ in size, shape, and/or distance of the chamber from the axis from the respective third and fourth walls of
the third and fourth chambers,

wherein the pivoting member (98) is coupled to the chambers so that:

rotation from the initial orientation in the first direction expands the first and third chambers and compresses the second
and fourth chambers; and

rotation from the initial orientation in the second direction compresses the first and third chambers and expands the second
and fourth chambers.

US Pat. No. 9,057,548

RECEIVER WITH FLOW METERING DEVICE

CARRIER CORPORATION, Far...

1. A receiver for collecting a refrigerant flowing through a refrigerant flow circuit, comprising:
a housing defining an enclosed volume establishing a refrigerant collection reservoir, said housing having an inlet, a first
outlet, and a second outlet;

a refrigerant metering device disposed within the enclosed volume in operative association with the second outlet for controlling
a flow of refrigerant discharging through the second outlet; and

a filter/drier disposed within the enclosed volume at a location downstream of the inlet and upstream of both the first outlet
and the second outlet.

US Pat. No. 10,294,940

ROTARY COMPRESSOR AND REFRIGERATING CYCLE DEVICE

TOSHIBA CARRIER CORPORATI...

1. A rotary compressor compressing working fluid which houses an electric motor portion and a compression mechanism portion that is driven via a rotary shaft provided at the electric motor portion, in a hermetic case, the compression mechanism portion comprising:a cylinder having both ends covered with covering members and having a cylinder chamber inside;
a roller which is fitted to the rotary shaft and rotates eccentrically in the cylinder chamber; and
a blade which is provided in the cylinder so that reciprocating movement can be performed and partitions the cylinder chamber into a suction chamber and a compression chamber by making a tip end portion of the blade contact the outer peripheral surface of the roller, wherein
the blade includes two blade members are provided so as to be superimposed in an axial direction of the rotary shaft, tip end portions of the two blade members are made to contact the outer peripheral surface of the roller, and the two blade members are energized by a coil spring so that superimposed portions of the blade members are made in contact.

US Pat. No. 9,327,293

ELECTRODE SUPPORT FOR ELECTRICALLY-ENHANCED AIR FILTRATION SYSTEM

CARRIER CORPORATION, Far...

6. An air filtration system comprising:
a frame directing an airflow through the air filtration system; and
an electrode disposed in the frame;
an electrode support to position the electrode in the frame including:
a conductor extending through the electrode support and electrically connected to the electrode;
an insulative layer disposed around the conductor; and
a plurality of support ribs configured to engage with a plurality of connector ribs disposed at one of the frame or an access
door to create a an electrical connection with a surrounding connector having a long path length, the plurality of support
ribs arranged as a plurality of concentric rings configured to engage with the plurality of connector ribs arranged as a plurality
of concentric rings; and

an electrical power supply electrically connected to the conductor to provide electrical power to the electrode.

US Pat. No. 9,267,696

INTEGRATED MEMBRANE DEHUMIDIFICATION SYSTEM

CARRIER CORPORATION, Far...

1. An air temperature and humidity control device comprising:
a first heat pump including a compressor, an expansion valve, a condenser and an evaporator, the first heat pump having a
refrigerant circulating there through;

a humidity controller having a first contactor fluidly coupled to the evaporator and the condenser, the first contactor including
at least one contact module having a porous sidewall that defines an internal space through which a hygroscopic material flows;

a first air flow in communication with the porous sidewall of the first contactor such that heat and/or water vapor transfers
between the first air flow and the hygroscopic material; and

a second heat pump including a first coil arranged generally downstream from the first contactor relative to the first air
flow.

US Pat. No. 9,310,087

SYSTEM AND METHOD FOR MAINTAINING AIR TEMPERATURE WITHIN A BUILDING HVAC SYSTEM

Carrier Corporation, Far...

1. A system for conditioning air within an air handling system of a building, which building has a hot water source and a
cold water source, the conditioning system comprising:
at least one heating-cooling unit connected to the air handling system, which at least one heating-cooling unit is operable
to transfer heat into or out of air passing within the air handling system of the building, and which at least one heating-cooling
unit includes at least one chilled beam;

a primary water storage device operable to store a volume of water within a predetermined temperature range, which primary
water storage device is in communication with the hot water source and the cold water source;

at least one first heat pump connected to the primary water storage device and the at least one chilled beam of the at least
one heating-cooling unit; and

a controller adapted to selectively drive the first heat pump to transfer heat between the primary water storage device and
the chilled beam of the at least one heating-cooling unit, and adapted to selectively control the system to transfer heat
into or out of the primary water storage device to maintain the water within the primary storage device within the predetermined
temperature range, and adapted to operate a second heat pump to transfer heat from the hot water source to the primary storage
device to increase the temperature of water disposed within the primary water storage device.

US Pat. No. 9,285,146

EJECTOR

Carrier Corporation, Far...

1. A refrigerant ejector for a refrigerant system comprising:
a primary inlet;
a secondary inlet;
an outlet;
a primary flowpath from the primary inlet to the outlet;
a secondary flowpath from the secondary inlet to the outlet;
a motive nozzle surrounding the primary flowpath upstream of a junction with the secondary flowpath and having: a throat;
and an exit; and

means for varying an effective area of the exit and an effective area of the throat oppositely to each other.

US Pat. No. 10,330,337

OUTDOOR UNIT

TOSHIBA CARRIER CORPORATI...

1. An outdoor unit for a refrigeration cycle apparatus comprising:a housing comprising a ventilation opening;
an outdoor heat exchanger housed in the housing;
a communication unit which is provided in the housing at a position facing the ventilation opening, and performs contactless data communication with a nearby information terminal;
an electrical component box housed in the housing;
a main control unit which is provided in the electrical component box and connected to the communication unit via a signal line, and which sets data necessary to operate the outdoor unit and diagnoses a state of the outdoor unit based on data communication with the information terminal via the communication unit; and
an outside air temperature sensor which detects outside air temperature;
wherein the communication unit comprises:
a data communication unit which performs the contactless data communication with the information terminal;
a nonmagnetic base portion which holds the data communication unit and the outside air temperature sensor, and comprises a first ventilation opening at a position facing the outside air temperature sensor; and
a nonmagnetic cover portion which covers the data communication unit and the outside air temperature sensor on the nonmagnetic base portion, and comprises a second ventilation opening at a position facing the outside air temperature sensor.

US Pat. No. 9,403,116

REGENERATIVE SCRUBBER SYSTEM WITH SINGLE FLOW DIVERSION ACTUATOR

CARRIER CORPORATION, Far...

1. A refrigerated transport container comprising:
a cargo box defining a closed environment;
a refrigeration unit including a compressor, a heat rejection heat exchanger and a heat absorption heat exchanger;
a regenerative scrubber system for removing a selected gas from an atmosphere within the closed environment, the regenerative
scrubber system comprising:

a scrubber module having a first scrubber and a second scrubber, each housing a porous mass of regenerative adsorbent material
for adsorbing the selected gas;

a first flow diversion device disposed upstream of the scrubber module with respect to the gaseous flow from the closed environment,
the first flow diversion device selectively positionable between a first position and a second position;

a second flow diversion device disposed downstream of the scrubber and upstream of the heat absorption heat exchanger with
respect to the gaseous flow from the closed environment, the second flow diversion device selectively positionable between
a first position and a second position; and

a single actuator operatively associated with each of the first flow diversion device and the second flow diversion device,
the actuator configured for selectively positioning each of the first and the second flow diversion devices simultaneously
in either the first position or in the second position.

US Pat. No. 9,175,588

DIESEL PARTICULATE FILTER REGENERATION IN TRANSPORT REFRIGERATION SYSTEM

CARRIER CORPORATION, Far...

1. A method for performing a regeneration cycle for regenerating a diesel particulate filter used for removing particulate
matter from a flow of engine exhaust gas from a diesel engine associated with a refrigeration system having a refrigeration
unit powered by the diesel engine having a first higher RPM speed and a second lower RPM speed, the method comprising:
determining whether the diesel engine is operating at the first higher RPM speed;
if the diesel engine is not operating at the high RPM speed, increasing a refrigeration load on the refrigeration unit until
the diesel engine is operating at the first higher RPM speed, and maintaining the increased refrigeration load on the refrigeration
unit until the regeneration cycle is terminated; and

if the diesel engine was not operating at the higher RPM initially, following termination of the regeneration cycle, decreasing
the refrigeration load on the refrigeration unit;

the method further comprising:
sensing an engine exhaust gas temperature upstream of the diesel particulate filter;
comparing the sensed engine exhaust gas temperature to a design regeneration temperature; and
if the sensed engine exhaust gas temperature (EEGT) is less than the design regeneration temperature, energizing an auxiliary
electric resistance heater disposed in the flow of engine exhaust gas upstream of the diesel particulate filter, the auxiliary
electric resistance heater being energized with electric current generated by a device powered by the diesel engine.

US Pat. No. 9,085,218

TRANSPORT REFRIGERATION UNIT AUXILIARY POWER

Carrier Corporation, Far...

1. A method for providing electric power for auxiliary electric loads from an electric transport refrigeration system used
to cool a trailer box comprising:
setting a trailer box interior temperature setpoint;
setting an auxiliary electric load setpoint;
calculating a total electrical load for the electric transport refrigeration system;
calculating excess generating capacity between the total electrical load for the electric transport refrigeration system and
an electric transport refrigeration system rated generation capacity; and

providing auxiliary power if the trailer box temperature is less than or equal to the trailer box temperature setpoint and
the calculated excess generated capacity is greater than the auxiliary electric load setpoint.

US Pat. No. 9,073,009

AIR PURIFICATION SYSTEM

CARRIER CORPORATION, Far...

1. An air purification system, comprising:
a substrate; and
at least one layer of photocatalysts, comprising a plurality of metal clusters;
wherein the plurality of metal clusters are present in a lower concentration in a first region of the at least one layer of
photocatalysts than in a second region of the at least one layer of photocatalysts, wherein said first region is exposed to
ambient air.

US Pat. No. 9,339,045

CONTROL OF ATMOSPHERE WITHIN A CLOSED ENVIRONMENT

CARRIER CORPORATION, Far...

1. A regenerative scrubber system for removing carbon dioxide from an atmosphere within a closed environment of a refrigerated
container for transport of perishable produce, comprising:
at least one scrubber apparatus housing a porous mass of a carbon dioxide adsorbent material, the scrubber apparatus defining
a flow path through the scrubber apparatus traversing the porous mass of a carbon dioxide adsorbent material;

a scrubber system bypass providing a bypass flow path excluding the at least one scrubber apparatus, the scrubber system bypass
including a bypass flow control device to control flow between the flow path through the scrubber apparatus and the bypass
flow path; and

a controller for selectively (i) directing a gas from the atmosphere within the closed environment along said flow path and
to a heat exchanger during operation in an adsorption mode, and (ii) selectively directing air from outside the closed environment
along said flow path and directing gas from the atmosphere within the closed environment along the bypass flow path to the
heat exchanger during operation in a regeneration mode.

US Pat. No. 9,943,088

HEAT EXCHANGER AND METHOD OF MAKING THEREOF

CARRIER CORPORATION, Far...

1. A method of making a heat exchanger comprising:obtaining an inner tube extending longitudinally along a central axis and having an inner surface bounding a product chamber and an outer surface having a plurality of channels disposed at circumferentially spaced intervals in alternating relationship with a plurality of fins about the circumference of the outer surface of the inner tube;
positioning an outer tube over the inner tube, the outer tube being disposed coaxially about and circumscribing the inner tube in radially spaced relationship, the outer tube having an inner surface contacting the plurality of fins of the inner tube; and
welding the outer tube to the inner tube at a plurality of weld locations, the weld locations comprising at least three circumferential weld locations about the outer surface of the outer tube and orthogonal to the central axis, the circumferential weld locations spaced from each other along a longitudinal axis of the outer tube.

US Pat. No. 9,095,636

CATALYTIC SUBSTRATES AND METHODS FOR CREATING CATALYTIC COATINGS FOR INDOOR AIR QUALITY APPLICATIONS

CARRIER CORPORATION, Far...

1. A catalytic device for removal of airborne volatile compounds from air, the catalytic device comprising:
a substrate having a surface; and
an electrodeposited coating on the surface, the electrodeposited coating including particles of a catalyst or precursor of
a catalyst capable of interacting with airborne volatile compounds, or a mixture of a catalyst and a precursor of a catalyst
capable of interacting with airborne volatile compounds, and the electrodeposited coating having a multimodal porosity distribution
that includes a native particle porosity and a coating porosity, wherein the particles have pore diameters greater than about
4 nanometers.

US Pat. No. 9,417,018

MULTI-LAYER PROTECTIVE COATING FOR AN ALUMINUM HEAT EXCHANGER

CARRIER CORPORATION, Far...

1. A method for coating an aluminum alloy heat exchanger, comprising:
subjecting at least one surface of the heat exchanger to a pre-treatment process including cleaning;
conversion coating the at least one surface of the heat exchanger with a trivalent chromium compound;
subjecting the at least one conversion coated surface to an electro-coating in an aqueous solution containing an organic corrosion
inhibitor; and

subjecting the at least one electro-coated surface to a surface coating including application of a top coat of a solvent borne
coating composition comprising a corrosion inhibiting pigment.

US Pat. No. 9,075,956

PROGRAMMABLE CUSTOMIZED USER INTERFACE FOR TRANSPORT REFRIGERATION UNITS

Carrier Corporation, Far...

1. A graphical user interface device for controlling and monitoring the operation of a transport refrigeration unit, comprising:
a display device;
a plurality of input devices;
a data storage device;
an input port for operatively connecting an external device to the graphical user interface device; and
a processor operatively connected to the display device, the plurality of input devices, the memory device and the input port,
the processor being programmed to store a menu structure in the data storage device of the graphical user interface device,
wherein the menu structure includes multiple levels of menu options, the menu options being associated with controlling and
monitoring the operation of the transport refrigeration unit, and wherein each menu option has an option security level designation
stored therewith,

the processor being programmed to cause the display device to display a first subset of the menu options when no authorization
code is input by a user at the graphical user interface device, wherein the menu options in the first subset have option security
level designations equal to a first security level designation, and

the processor being programmed to cause the display device to display a second subset of the menu options in response to entry
of an authorization code by a user at the graphical user interface device, the second subset of menu options being customizable
and displayed on the display device based on a preference of the user entering the authorization code, wherein the menu options
in the second subset include the menu options in the first subset and menu options having option security level designations
equal to a second security level designation.

US Pat. No. 10,110,750

CENTRAL STATION CONNECTIVITY

CARRIER CORPORATION, Far...

1. An inter-network or intra-network data switching means adapted to switch dedicated messages within or between communications networks, the data switching means including:a first data forwarding means having:
a data link adapted to receive upstream messages, and
at least one upstream port,
each upstream port having a specific port identity, wherein
each upstream message includes address information identifying:
the first data forwarding means and
a selected upstream port of the at least one upstream port,
the first data forwarding means being adapted to forward an upstream message to the selected upstream port,
the data switching means including at least one message delivery means adapted to deliver the upstream message to a destination address stored in the message delivery means,
each port of the data forwarding means being associated with a corresponding one of the message delivery means to enable forwarding of the upstream message to a destination address stored in the message delivery means;
wherein the first data forwarding means includes two or more upstream ports, and wherein the data switching means includes two or more message delivery means, each upstream port being connected to a single message delivery means to define a one-to-one correspondence between each upstream port and each message delivery means.

US Pat. No. 9,261,298

EJECTOR CYCLE REFRIGERANT SEPARATOR

Carrier Corporation, Far...

1. A system comprising:
a compressor;
a heat rejection heat exchanger coupled to the compressor to receive refrigerant compressed by the compressor;
a heat absorption heat exchanger; and
a separator comprising:
a vessel having an interior;
an inlet;
a first outlet;
a second outlet; and
an inlet conduit extending from the inlet and having a closed lower end and lateral apertures forming a conduit outlet positioned
to discharge an inlet flow into the vessel interior to cause the inlet flow to hit a wall before passing to a liquid refrigerant
accumulation in the vessel.

US Pat. No. 9,068,771

METHOD FOR AUTOMATICALLY ADJUSTING THE DEFROST INTERVAL IN A HEAT PUMP SYSTEM

CARRIER CORPORATION, Far...

1. A method for dynamically adjusting a defrost interval in a heat pump system, the method comprising:
(a) initiating a defrost cycle;
(b) terminating the defrost cycle when a condenser coil reaches a threshold temperature or when a maximum duration time limit
is reached;

(c) detecting the duration of the defrost cycle;
(d) dynamically adjusting the duration of the defrost interval as a function of the duration of the defrost cycle and a schedule
of defrost cycles and defrost intervals, such that the duration of the defrost interval is inversely related to the duration
of the defrost cycle;

(e) automatically initiating a next defrost cycle based solely upon completion of the duration of the defrost interval; and
(f) repeating steps (b)-(e).

US Pat. No. 9,353,302

FLUORINATED HYDROCARBON COMPOSITION

CARRIER CORPORATION, Far...

1. A fluorinated hydrocarbon composition, consisting essentially of:
a first fluorinated hydrocarbon compound according to the formula:

wherein R1, R2, R3, R4, and R5 are each independently H, F, Cl, Br, or I, n is 0, 1, 2, or 3, and each R? group is independently H, F, Cl, Br, or I, with
the proviso that three of R1, R2, R3, R4, and R5 are F;

a second fluorinated hydrocarbon compound according to the formula:

wherein m is 0 or 1, and R6, R7, and R8 are each independently H, F, Cl, Br, or I, with the proviso that at least one of R6, R7, and R8 is F; and

a third fluorinated hydrocarbon compound according to the formula:

wherein R9, R10, R11, R12 and R13 are each independently H, Cl, Br, or I.

US Pat. No. 9,249,984

BASE PAN

CARRIER CORPORATION, Far...

1. An air conditioning unit, comprising:
a base pan having at least one hole surrounded by a first embossment including a first inclined sidewall and a first top wall;
and

a mounting plate positioned adjacent a portion of the base pan, the mounting plate having at least one opening surrounded
by a second embossment including a second inclined sidewall and a second top wall, the at least one opening being vertically
aligned with the at least one hole;

wherein the second embossment overlays the first embossment such that a gap exists between the second inclined sidewall and
the first inclined sidewall.

US Pat. No. 10,037,665

CHAMBER-LESS SMOKE SENSOR

CARRIER CORPORATION, Far...

1. A method for detecting smoke via a chamber-less smoke sensor, comprising:applying, one or more filters to eliminate a flooding of ambient light upon the smoke sensor;
emitting, by a source, light, wherein the emitted light comprises a plurality of different wavelengths;
detecting, by at least one detector, at least a portion of the emitted light;
processing, by a processor, the detected light to signal an alarm condition when one or more threshold levels are reached; and
providing an offset adjustment to account for a sensitivity of the at least one detector to light of the different wavelengths via the processor.

US Pat. No. 9,803,883

ENVIRONMENTAL CONTROL SYSTEM

CARRIER CORPORATION, Far...

1. An environmental control system, comprising:
equipment to generate an environmental control effect;
a damper associated with a zone to control a portion of the environmental control effect permitted to affect the zone by assuming
one of various damper positions; and

a capacity controller operably coupled to the equipment and the damper to control operation of the equipment and to adjust
the damper to assume the one of the various damper positions in accordance with an anti-windup structure and based on a demand
and a noise limit of the zone and an equipment capacity limit,

the anti-windup structure being configured to:
multiply and divide an available capacity output from the equipment by a portion of total zone demand for each zone and a
desired capacity, respectively, to obtain a first result,

subtract a zone demand representation of a difference between a set point and an actual temperature from the first result
to obtain a second result, and

feed the second result into a PI controller with a control algorithm for controlling the equipment and the damper.

US Pat. No. 9,360,237

TRANSCRITICAL REFRIGERANT VAPOR SYSTEM WITH CAPACITY BOOST

CARRIER CORPORATION, Far...

1. A refrigerant vapor compression system comprising: a first refrigerant heat rejection heat exchanger having a refrigerant
inlet and a refrigerant outlet; a second refrigerant heat rejection heat exchanger having a refrigerant inlet and a refrigerant
outlet; a refrigerant compression device having a first compression stage and a second compression stage; a branch refrigerant
line connecting a refrigerant inlet of the first compression stage to a refrigerant inlet of the second compression stage;
a flow control device in the branch refrigerant line; the first and second compression stages and the first and second refrigerant
heat rejection heat exchangers selectively configurable in a first arrangement wherein the first and second compression stages
operate in a series refrigerant flow relationship and the second refrigerant heat rejection heat exchanger functions as an
intercooler for cooling refrigerant passing from the first compression stage to the second compression stage, the flow control
device closed in the first arrangement, and in a second arrangement wherein the first and second compression stages operate
in a parallel refrigerant flow relationship and the second refrigerant heat rejection heat exchanger functions as a gas cooler
for cooling refrigerant passing from the first compression stage, the flow control device open in the second arrangement.

US Pat. No. 9,091,454

AIR CHANGE RATE MEASUREMENT AND CONTROL

CARRIER CORPORATION, Far...

1. A method for controlling a system, the method comprising:
receiving temperature and humidity measurements of supply air to a serviced space, return air from the serviced space, and
outside air, wherein the outside air includes air outside the serviced space, and a flow rate of the supply air to the serviced
space;

calculating a volumetric flow rate of the outside air entering the system using the received temperature and humidity measurements
of the supply air, the return air, the outside air, and the flow rate of the supply air to the serviced space;

calculating an air change per hour (ACH) rate in the serviced space using the calculated volumetric flow rate of the air outside
the serviced space entering the system and the volume of the serviced space; and

controlling the ACH rate in the serviced space.

US Pat. No. 9,995,538

CLEAT ARRANGEMENT FOR ACCESSORY INSTALLATION TO A HEATING OR COOLING SYSTEM COMPONENT

CARRIER CORPORATION, Far...

1. An energy recovery system comprising:a heating or cooling system; and
an accessory operably connected to a heating or cooling system component; and
one or more J-shaped accessory interlocking cleats disposed at the accessory interlocked with one or more complementary J-shaped component interlocking cleats disposed at the heating or cooling system component to secure the accessory directly to the component;
wherein the accessory is an energy recovery ventilator including:
a housing; and
a heat exchanger disposed in the housing for recovery of thermal energy from an airflow flowing into the energy recovery generator from a return air duct of the heating or cooling system.

US Pat. No. 9,163,872

METHOD OF OPERATING A REFRIGERATION SYSTEM FOR A MOBILE CARGO CONTAINER

CARRIER CORPORATION, Far...

6. A refrigerated mobile cargo container comprising:
a door;
a door position sensor configured and disposed to detect a position of the at least one door;
a temperature sensor configured and disposed to detect a temperature outside of the refrigerated mobile cargo container;
a refrigeration system selectively operable to condition an interior storage zone of the refrigerated mobile cargo container;
and

a controller operatively coupled to the door position sensor, temperature sensor, and the refrigeration system, the controller
selectively activating the refrigeration system based on inputs from the door position sensor and the temperature sensor to
deactivate the refrigeration system if the door is open and the temperature outside of the refrigerated mobile cargo container
is less than a predetermined value, and operate the refrigeration system if the door is open and the temperature outside of
the refrigerated mobile cargo container is greater than the predetermined value.

US Pat. No. 9,063,553

DUAL PURPOSE DESICCANT AND RECOVERY WHEEL

CARRIER CORPORATION, Far...

9. A method of climate control comprising:
rotating a desiccant member disposed across both a supply air stream and a return airstream of a climate control system at
a first rotational speed to transfer thermal energy from the supply air stream to the return air stream, wherein the first
rotational speed is about 45 rpm or above; and

rotating the desiccant member at a second rotational speed different than the first rotational speed to reduce humidity of
the supply air stream.

US Pat. No. 10,126,165

RADIATION SENSORS

Carrier Corporation, Far...

1. An ultraviolet (UV) radiation sensor, comprising:at least one layer of UV radiation sensitive material; and
at least a first electrode and a second electrode connected in series through the UV radiation sensitive material such that UV radiation can reach the UV radiation sensitive material,
wherein the UV radiation sensitive material is a separate layer from the electrodes, wherein each electrode is a separated by a layer of the UV radiation sensitive material, wherein the at least one layer of UV radiation sensitive material and the at least first electrode and second electrode include:
a first layer of the UV radiation sensitive material;
a second layer having a second layer comb electrode with second layer comb electrode extensions;
a third layer of UV radiation sensitive material; and
a fourth layer having a fourth layer comb electrode with fourth layer comb electrode extensions.

US Pat. No. 9,664,406

AIR EXCHANGE DEVICE FOR REFRIGERATED CHAMBER

CARRIER CORPORATION, Far...

1. A refrigeration unit for conditioning air within a refrigerated chamber for housing perishable goods, the refrigeration
unit comprising:
an evaporator heat exchanger disposed in operative association with the refrigerated chamber;
an evaporator fan for circulating a flow of air drawn from the refrigerated chamber through the evaporator heat exchanger
and back into the refrigerated chamber, the evaporator fan having a suction side and a discharge side; and

an air exchange device including a single tubular member, an interior volume of the single tubular member divided into a first
chamber and a second chamber isolated from first chamber by a flow impervious division wall within the single tubular member,
the first chamber having a first inlet in flow communication with a fresh air source and first outlet in flow communication
with the refrigerated chamber on the suction side of the evaporator fan, and the second chamber having a second inlet in flow
communication with the refrigerated chamber in the discharge side of the evaporator fan and a second outlet in flow communication
with a space exterior of the refrigerated chamber;

wherein the air exchange device further includes a housing disposed about the tubular member, the housing having a first housing
opening communicating with the suction side of the refrigerated chamber and a second housing opening communicating to the
space exterior of the refrigerated chamber, the tubular member disposed for rotation within and relative to the housing to
adjust registration of the first outlet with the first housing opening and the second outlet with the second housing opening;

wherein the second outlet of the second chamber of the tubular member is disposed orthogonally to the first inlet of the first
chamber of the tubular member.

US Pat. No. 9,297,548

CONTROL OF MULTIPLE ZONE REFRIGERANT VAPOR COMPRESSION SYSTEMS

CARRIER CORPORATION, Far...

1. A method for controlling the operation of a refrigerant vapor compression system for cooling a temperature-controlled space
having a plurality of temperature controlled zones, the refrigerant vapor compression system including a refrigerant circuit
through which a refrigerant mass flow is circulated by a compression device, said method comprising:
controlling the refrigerant mass flow to provide a cooling capacity of the refrigerant vapor compression system in response
to a collective cooling demand for said plurality of temperature controlled zones; each of the plurality of temperature controlled
zones including an evaporator; and

selectively dividing the refrigerant mass flow amongst the plurality of temperature controlled zones;
wherein controlling the refrigerant mass flow comprises providing a variable speed compression device; and
selectively varying an operating speed of the variable speed compression device in response to a sum of respective tuned temperature
differentials between a sensed temperature and a related set point temperature associated with each respective zone of the
plurality of temperature controlled zones, wherein each tuned temperature differential corresponds to a temperature differential
between the sensed temperature and the related set point temperature associated with each respective zone of the plurality
of temperature controlled zones multiplied by a respective tuning constant.

US Pat. No. 9,429,151

VARIABLE FREQUENCY DRIVE HEAT SINK ASSEMBLY

CARRIER CORPORATION, Far...

1. A heat sink assembly for cooling a power electronics module comprising:
a housing defining an interior chamber for enclosing the power electronics module and defining a flow channel exterior to
said interior chamber; and

a heat sink structure disposed in conductive heat transfer relationship with said interior chamber and having a heat transfer
surface positioned within the exterior flow channel;

wherein the heat transfer surface comprises a plurality of external heat transfer fins extending outwardly from said housing
into the flow channel of the housing;

wherein the plurality of external heat transfer fins have an arcuate contour in longitudinal expanse.

US Pat. No. 9,308,491

MEMBRANE CONTACTOR FOR DEHUMIDIFICATION SYSTEMS

CARRIER CORPORATION, Far...

1. A contactor configured for use in a dehumidification system comprising:
a plurality of similar contact modules, each contact module having a porous sidewall that defines an internal space through
which a hygroscopic material flows, wherein adjacent contact modules are fluidly coupled to form a multipass flow path for
the hygroscopic material.

US Pat. No. 9,464,835

REMOTE SOFTWARE LOADING FOR REFRIGERANT SYSTEM

CARRIER CORPORATION, Syr...

1. A refrigerant system including a plurality of components that are operable to change at least a temperature of a secondary
fluid;
a control for controlling said plurality of components, said control being provided with operational software; and
a link to a remote location over an information carrying media, said link being operable to provide software upgrades to the
control when said software upgrades are required;

wherein said plurality of components includes at least one of a compressor, a heat exchanger having fans or pumps for moving
a secondary fluid over the heat exchangers, an expansion device, an air conditioner, a heat pump, and a chiller;

wherein said control is operational to perform a system test after said software upgrade has been downloaded, and to report
the results of the system test back to the remote location, said system test including a test of at least one of said plurality
of components.

US Pat. No. 9,116,530

TRANSPORT REFRIGERATION SECURITY SYSTEM

Carrier Corporation, Far...

1. A security monitor system for a transport refrigeration unit, the transport refrigeration unit being operatively associated
with a vehicle and including a battery operatively associated with the transport refrigeration unit, the security monitor
system comprising:
at least one security sensor operatively associated with the transport refrigeration unit and configured to detect a fault
condition associated with the transport refrigeration unit, the fault condition indicative of changes to the transport refrigeration
unit; and

a controller having a plurality of inputs, a plurality of outputs, and a low power control circuit providing electrical communication
between the battery of the transport unit, the security sensor, and at least one of the inputs of the controller, the control
circuit being configured to maintain the controller in low power mode when there are no detected fault conditions, the control
circuit being configured to enable power to the controller when there is a detected fault condition.

US Pat. No. 9,903,627

METHOD OF OPERATING AN AIR CONDITIONING SYSTEM INCLUDING REDUCING THE ENERGY CONSUMED BY THE COMPRESSOR CRANK CASE HEATERS

CARRIER CORPORATION, Far...

6. A method of operating an air conditioning system comprising:
cooling a selected space with the air conditioning system including:
two or more compressors; and
two or more crank case heaters, each crank case heater of the two or more crank case heaters operably connected to a compressor
of the two or more compressors;

stopping operation of the two or more compressors, thus initiating operation of the two or more crank case heaters; and
switching the air conditioning system to a conservation mode, including removing from operation at least one compressor of
the two or more compressors and at least one crank case heater of the two or more crank case heaters thereby reducing energy
consumption of the two or more crank case heaters;

wherein switching the air conditioning system into the conservation modes further comprises:
programming a calendar date range into a controller for the air conditioning system; and
switching the air conditioning system to the conservation mode upon the occurrence of the first calendar date in the calendar
date range via the controller.

US Pat. No. 9,297,578

CURRENT LIMIT CONTROL ON A TRANSPORT REFRIGERATION SYSTEM

CARRIER CORPORATION, Far...

1. A method of operating a transport refrigeration unit having a compressor powered by AC electric current to limit current
draw by the compressor, the method comprising:
(a) determining whether an ambient temperature in which the refrigeration unit is operating has been greater than a set point
ambient temperature for a first time period;

(b) determining whether the refrigeration unit has been operating in a temperature pulldown mode for more than a time period,
Z;

(c) determining whether the AC electric current is equal to or exceeds a preset maximum current limit;
(d) determining whether a time period between a last defrost cycle and a next previous defrost cycle is less than fifteen
minutes; and

(e) when the determination is yes in both of step (a) and step (b) and is also yes in at least one of step (c) and step (d),
reducing the preset maximum current limit to a first reset maximum current limit.

US Pat. No. 9,806,125

COMPOSITIONALLY GRADED PHOTODETECTORS

Carrier Corporation, Far...

1. An ultraviolet (UV) photodetector, comprising:
a substrate;
an electrode coupled to the substrate; anda compositionally graded magnesium-zinc oxide film deposited on the substrate and connected to the electrode, wherein the
film comprises:
a base layer with a MgxZn(1-x)O composition overlaying the substrate;

one or more intermediate layers with a MgyZn(1-y)O composition overlaying the base layer; and

an incident layer with a MgzZn(1-z)O composition overlaying the intermediate layer, wherein x is greater than y, and wherein y is greater than z, the film having
a zinc content that increases from a portion of the film adjacent the substrate to a portion of the film opposite the substrate
to red shift the peak absorption of the film.

US Pat. No. 9,052,131

DAMPER APPARATUS FOR TRANSPORT REFRIGERATION SYSTEM, TRANSPORT REFRIGERATION UNIT, AND METHODS FOR SAME

CARRIER CORPORATION, Far...

1. A transport refrigeration unit including a compressor, a primary refrigerant circuit including heat rejection heat exchanger
downstream of said compressor, and a heat absorption heat exchanger downstream of said heat rejection heat exchanger, the
transport refrigeration unit comprising:
a barrier to separate a first portion of the transport refrigeration unit to operate in a refrigerated environment from a
second portion;

at least one damper door in the refrigerated portion, the damper door to move between three or more positions; and
an actuator operatively coupled to move the damper door, the actuator controlling movement of the damper door between an open
position and a closed position and a plurality of intermediate positions between the open position and a closed position;

where the plurality of intermediate positions of the damper door are configured to vary a transport refrigeration unit capacity
or a transport refrigeration unit humidity capacity.

US Pat. No. 10,127,485

ONION LAYER ENCRYPTION SCHEME FOR SECURE MULTI-ACCESS WITH SINGLE CARD

Carrier Corporation, Pal...

1. A magnetic strip card, comprising:a card payload with a code key of an access control encrypted with a short key to generate a partial encrypted card payload, the partial encrypted card payload encrypted with a long shared key to provide a final encrypted payload, the short key is 24 bits and the long shared key is 128 bits.

US Pat. No. 9,103,575

OPERATION AND CONTROL OF TANDEM COMPRESSORS AND REHEAT FUNCTION

Carrier Corporation, Far...

1. A refrigerant system comprising:
a tandem compressor bank including a plurality of compressors receiving refrigerant from a suction manifold, compressing the
refrigerant and delivering the refrigerant into a discharge manifold;

a condenser positioned downstream of said compressor bank, an expansion device positioned downstream of said condenser, and
an evaporator positioned downstream of said expansion device, refrigerant passing from said compressor bank to said condenser,
through said expansion device to said evaporator, and back to said suction manifold; and

at least one sensor for sensing a refrigerant system operating condition, and a control for being operable to monitor said
operating condition as each of said tandem compressors is brought online, and identify a refrigerant system fault based upon
expected changes in said operating condition as each of said tandem compressors is brought online.

US Pat. No. 9,810,002

ROTARY CABLE LATCH

Carrier Corporation, Far...

1. A lock box comprising:
a base plate;
a back cover mounted to the base plate, the back cover including a first internal compartment;
a connector configured to connect the lock box to an object, the connector including a first end and a second end, the first
end of the connector being mounted within the first internal compartment, and the second end of the connector being selectively
retained within the first internal compartment, wherein the second end of the connector includes an inlet;

a retention mechanism coupled to the base plate and including an opening for receiving the second end of the connector, the
retention mechanism being configured to rotate between an unlatched and a latched position to selectively retain the second
end of the connector; and

a front cover coupled to the base plate, the front cover being movable between a closed position and an open position, wherein
when the front cover is in the closed position, engagement between the front cover and the retention mechanism restricts movement
of the retention mechanism between the latched position and the unlatched position.

US Pat. No. 9,145,988

BRAZING RING

CARRIER CORPORATION, Far...

1. A brazing ring, comprising:
ring material including an aluminum-zinc-silicon alloy having a first melting point; and
flux material contained within the ring material having a second melting point, which is lower than the first melting point,
the ring material being formed in an annular shape with a J-shaped cross section having a long inner leg and a short outer
leg, which is more exposed to a heat source and closer to a flow target than the long inner leg,

the flux material being contained within an annular space formed between the legs and exposed outwardly to the heat source
in a direction defined along an axial dimension of the ring material, and

the flux material being more exposed to the heat source than the ring material such that, upon heating, the flux material
melts before the ring material.

US Pat. No. 9,308,492

METHOD AND SYSTEM FOR USING AN OZONE GENERATING DEVICE FOR AIR PURIFICATION

CARRIER CORPORATION, Far...

1. An air purification system configured to remove contaminants from air in an air handling system, the air purification system
comprising:
a power supply providing variable power to an AC transformer;
an ozone generating device coupled to the power supply, wherein a generation rate of ozone is a function of input power from
the power supply, the input power varying in response to the variable power provided to the AC transformer;

an ozone sensor configured to sense a concentration of ozone in an air stream located downstream of the ozone generating device;
a contaminant sensor configured to sense a concentration of volatile organic compounds in an air stream; and
a controller configured to vary input power from the power supply to the ozone generating device to generate ozone at a plurality
of non-zero, ozone generation rates, wherein the input power is a function of at least one of the concentration of ozone and
the concentration of volatile organic compounds.

US Pat. No. 9,127,837

LOW PRESSURE DROP, LOW NOX, INDUCED DRAFT GAS HEATERS

Carrier Corporation, Far...

1. A gas burner assembly, comprising:
an upstream end comprising at least one neck comprising one end in communication with an air supply and optionally a fuel
supply and a second end in communication with at least one burner tube,

the burner tube is physically coupled to a heat exchanger and via at least one downstream component, the at least one downstream
component being disposed opposite the burner tube from the neck, the at least one downstream component comprising a cylindrical
portion having a constant cross-section,

the neck comprises one or more variables selected from the group consisting of a length, a constant cross-sectional area,
a variable cross-sectional area, and a shape or geometry, that provides an upstream impedance (Zup) of air and optionally
fuel flowing through the neck that exceeds a downstream impedance (Zdown) of combustion gases flowing through the heat exchanger
and downstream components to provide a stable flame at the burner, and

at least one chamber wherein the neck and chamber form at least one Helmholtz resonator and wherein the neck is disposed substantially
within the chamber.

US Pat. No. 9,068,765

REFRIGERATION STORAGE IN A REFRIGERANT VAPOR COMPRESSION SYSTEM

CARRIER CORPORATION, Far...

1. A refrigerant vapor compression system comprising a plurality of components connected in a refrigerant flow circuit by
a plurality of refrigerant lines, said components including at least a compression device, a refrigerant heat rejection heat
exchanger, a primary expansion device, a refrigerant heat absorption heat exchanger, and a flash tank;
each of said components defining an internal volume and the plurality of refrigerant lines defining an internal volume, the
system volume equal to the sum of the internal volumes of said component volumes and the internal volume of the plurality
of refrigerant lines, and the internal volume of the flash tank ranging from at least 10% to about 30% of the system volume;

wherein the flash tank is disposed in the refrigerant flow circuit between the refrigerant heat rejection heat exchanger and
the refrigerant heat absorption heat exchanger.

US Pat. No. 9,062,890

ENERGY RECOVERY VENTILATOR

CARRIER CORPORATION, Far...

1. A heat exchanger comprising:
a housing having:
a first flowpath from a first inlet to a first outlet; and
a second flowpath from a second inlet to a second outlet;
a first core comprising:
a membrane; and
first and second passageways on first and second sides of the membrane;
a second core comprising:
a heat transfer member less permeable than the membrane; and
first and second passageways on first and second sides of the heat transfer member; and
an actuator, coupled to the first and second cores to shift the physical location of the first and second cores between:
a first condition wherein the first core first passageway is along the first flowpath and the first core second passageway
is along the second flowpath and the second core is not along the first and second flowpaths; and

a second condition wherein the second core first passageway is along the first flowpath and the second core second passageway
is along the second flowpath and the first core is not along the first and second flowpaths.

US Pat. No. 9,140,470

EJECTOR

Carrier Corporation, Far...

1. An ejector comprising:
a primary inlet;
a secondary inlet;
an outlet;
a primary flowpath from the primary inlet to the outlet;
a secondary flowpath from the secondary inlet to the outlet;
a mixer convergent section downstream of the secondary inlet;
a motive nozzle surrounding the primary flowpath upstream of a junction with the secondary flowpath and having:
a throat; and
an exit; and
an actuator coupled to the motive nozzle to drive a relative streamwise shift of the motive nozzle exit and mixer convergent
section, wherein:

the coupling is effective to provide said relative streamwise shift along a range of motion between a relatively extended
condition and a relatively retracted condition;

the secondary flowpath passes along an exterior surface of the motive nozzle that experiences the relative streamwise shift;
over at least a portion of said range of motion, the exit is within the convergent section;
the convergent section has a length (LC);

the motive nozzle, in said portion of said range of motion, protrudes into the convergent section by an overlap (LP); and

said portion includes ratios of said overlap to said length including at least 0.4-0.7.

US Pat. No. 10,140,831

IONIZATION AIR FILTERS FOR HAZARDOUS PARTICLE DETECTION

Carrier Corporation, Far...

1. An air filtration unit for detecting hazardous particles comprising:a housing having an air flow pathway extending therethrough, the housing configured to receive air flow from an inlet of the housing and to expel air flow from an outlet of the housing;
a pair of electrodes within the air flow pathway, wherein the pair of electrodes includes an ionizer electrode and a filter, the ionizer electrode being configured to charge particles comprised in the air flow so that the particles adhere to the filter;
a sensor system operatively connected to the pair of electrodes to measure electrical current flowing therebetween;
a processor operatively connected to the sensor system to compare the measured electrical current with a stored baseline current, wherein the processor selectively activates at least one electrostatic filter to trap the hazardous particles from the air and create an egress path; and
an alarm operatively connected to the processor, wherein the processor activates the alarm when the measured electrical current is different from the stored baseline current.

US Pat. No. 9,273,876

MEMBRANE CONTACTOR FOR DEHUMIDIFICATION SYSTEMS

CARRIER CORPORATION, Far...

1. A contactor configured for use in a dehumidification system comprising:
a plurality of contact modules contained within a single housing of the contactor, each contact module having a porous membrane
that defines an internal space through which a hygroscopic material flows, wherein at least one of thermal conductivity and
permeability of the porous membrane of at least one contact module is generally distinct from the remainder other membranes
of the plurality of contact modules within the contactor.

US Pat. No. 9,080,797

VARIABLE SPEED COMPRESSOR

Carrier Corporation, Far...

1. A cooling system comprising:
a drive motor connected to a proximal drive shaft the proximal drive shaft connected to a continuous variable transmission
(CVT), the CVT is connected to an output drive shaft that is connected to a rotor disposed within a compressor, the compressor
is connected to an evaporator, which is connected to a condenser which is connected to the compressor thereby forming a vapor-compression
refrigerant cycle; and

a controller is linked to the CVT and a sensor for detecting a leaving chilled water temperature in the evaporator and the
condenser, the controller increases the output speed of the CVT to the output drive shaft when the leaving chilled water temperature
is above a set point, the controller decreases the output speed of the CVT to the output drive shaft when the leaving chilled
water temperature is below the set point, wherein the CVT comprises a hydraulic pump that is connected to the proximal drive
shaft and a planetary gear set, the planetary gear set is linked to the output drive shaft, the hydraulic pump is in fluid
communication with a hydraulic motor, the hydraulic motor is linked to the output drive shaft, the controller is linked to
both the hydraulic pump and the hydraulic motor, and the controller is programmed to decrease the output speed of the hydraulic
motor to the output drive shaft and increase the output of the drive motor to the output shaft when the leaving refrigerant
temperature is above a set point, the controller is programmed to increase the output speed of the hydraulic motor and decrease
the output of the drive motor to the output drive shaft when the leaving chilled water temperature is below the set point.

US Pat. No. 9,890,977

FLASH TANK ECONOMIZER FOR TWO STAGE CENTRIFUGAL WATER CHILLERS

Carrier Corporation, Jup...

1. A system (20) comprising an integrated combination of:
a condenser (34) having a condenser water path leg extending from a water inlet (40) to a water outlet (42);

a first expansion device (50);

a flash tank economizer (60; 360; 420);

a second expansion device (70; 190);

an evaporator (72) having an evaporator water path leg extending from a water inlet (80) to a water outlet (82); and

a refrigerant flowpath (520, 522, 524) passing sequentially through the condenser, the first expansion device, the economizer, the second expansion device and
the evaporator,
wherein:
the flash tank economizer comprises:
a horizontally elongate body having a first end (108) and a second end (110);

an inlet conduit (120) having an outlet (122);

a liquid outlet (66);

a vapor outlet (64); and

a medium (158) between the outlet of the inlet conduit and the liquid outlet; and

a length of the refrigerant flowpath between the first expansion device and the outlet of the inlet conduit is at least 0.5
m.

US Pat. No. 9,726,416

TRANSPORT REFRIGERATION SYSTEM WITH ENGINE EXHAUST COOLING

CARRIER CORPORATION, Far...

1. A transport refrigeration system for controlling a temperature associated with a mobile refrigerated cargo box comprising:
a refrigeration unit having a refrigerant circuit through which a refrigerant is circulated, the refrigeration unit including
a compression device, a refrigerant heat rejection heat exchanger, an expansion device and a refrigerant heat absorption heat
exchanger wherein refrigerant is passed in heat exchange relationship with air drawn from the mobile refrigerated cargo box;

a fuel fired engine for powering the refrigerant unit, the fuel fired engine having an exhaust system through which exhaust
gases generated by the fuel fired engine are discharged; and

an engine exhaust gas cooler including an exhaust gas pass, a refrigerant pass, and an air flow pass, the exhaust gas pass
and the refrigerant pass disposed in heat exchange relationship and in the air flow pass;

herein the refrigerant pass of the engine exhaust gas cooler has an inlet connected to the refrigerant circuit at a first
location between the compression device and the refrigerant heat rejection heat exchanger and has an outlet connected to the
refrigerant circuit at a second location between the expansion device and the refrigerant heat absorption heat exchanger;

a valve positioned in the first location, the valve having a closed position to prevent the refrigerant from entering the
inlet of the refrigerant pass of the engine exhaust gas cooler and an open position to allow the refrigerant to enter the
inlet of the refrigerant pass of the engine exhaust gas cooler.

US Pat. No. 9,464,839

SEMI-ELECTRIC MOBILE REFRIGERATED SYSTEM

CARRIER CORPORATION, Far...

1. A mobile refrigerated system for transport of perishable cargo, the mobile refrigerated system comprising:
a refrigeration unit having a compressor and a plurality of refrigeration unit electric loads;
a power supply system including a single engine coupled to the compressor for direct drive powering the compressor, and a
generator arranged to be driven by the engine for generating electric power;

wherein the power supply system further comprises an alternator arranged to be belt driven by the engine for generating electric
power;

a power distribution system arranged to receive electric power generated by the generator and by the alternator and configured
to selectively distribute electric power to the plurality of refrigeration unit electric loads;

wherein the generator generates alternating current power and the alternator generates direct current power and the power
distribution system is configured to distribute alternating current power to at least one of the plurality of refrigeration
unit electric loads and to distribute direct current power to at least one of the plurality of refrigeration unit electric
loads;

wherein the power supply system further comprises a battery pack for storing electric power and providing a second source
of direct current power;

wherein the plurality of refrigeration unit loads includes at least one direct current powered fan motor, powered, the power
distribution system selectively powering the direct current fan motor by selecting at least one of direct current generated
by the alternator, direct current from the battery pack, and direct current derived from converting alternating current generated
by the generator.

US Pat. No. 9,335,079

LOW SUCTION PRESSURE PROTECTION FOR REFRIGERANT VAPOR COMPRESSION SYSTEM

CARRIER CORPORATION, Far...

1. A refrigerant vapor compression system comprising:
a compressor for compressing a refrigerant, the compressor having a suction port and a discharge port; a refrigerant heat
rejection heat exchanger operatively coupled downstream to the discharge port of the compressor; a refrigerant heat absorption
heat exchanger operatively coupled downstream to the refrigerant heat rejection heat exchanger; a compressor suction inlet
line connecting the refrigerant heat absorption heat exchanger to the suction port of the compressor; an adiabatic expansion
device operatively coupled to the suction inlet line;

a sensor operatively coupled to the suction inlet line for measuring a superheat value of the refrigerant;
a bypass line connecting the discharge port of the compressor to the suction port of the compressor, the bypass line having
an unload valve to regulate the refrigerant flow therethrough;

wherein the adiabatic expansion device is positioned upstream with respect to refrigerant flow of a point where the bypass
line connects to the suction inlet line;

a controller in communication with the sensor, the controller configured to operate the refrigerant vapor compression system
in a first cooling mode when a pressure of the refrigerant downstream of the adiabatic expansion device is greater than a
threshold value, and operate the refrigerant vapor compression system in a second cooling mode when the pressure of the refrigerant
downstream of the adiabatic expansion device is less than the threshold value, the threshold value indicative of a pressure
at which expansion across the adiabatic expansion device would result in formation of solid-phase refrigerant;

wherein the second cooling mode of operation includes opening the unload valve to admit higher-temperature refrigerant to
the suction port of the compressor; and

wherein the compressor continues to operate in both cooling modes, wherein the refrigerant vapor compression system operates
in a transcritical mode in both the first cooling mode and the second cooling mode.

US Pat. No. 9,074,791

GAS FURNACE CONDENSATE COLLECTOR BOX

CARRIER CORPORATION, Far...

1. A condensate collector box comprising:
a furnace mounting plate including a first edge portion, a second edge portion extending from the first edge portion, a third
edge portion extending from the first edge portion opposite the second edge portion, a first vent drain channel extending
along the first edge portion from the second edge portion to the third edge portion and a second vent drain channel extending
along the second edge portion, and a heat exchanger condensate collection area defined inwardly of the first and second vent
drain channels; and

an inducer fan mounting member having a first surface and opposing second surface arranged upon the furnace mounting plate
to form a condensate collection zone, and a first inducer fan drain passage formed on the inducer fan mounting member fluidically
connected to the first vent drain channel and a second inducer fan drain passage formed on the inducer fan mounting member
and fluidically connected with the second vent drain channel, wherein the inducer fan mounting member includes a first condensate
trap mounting element including a condensate trap drain fluidly connected to the first vent drain channel, and a second condensate
trap mounting element including a condensate trap drain fluidly connected to the second vent drain channel.

US Pat. No. 9,901,966

METHOD FOR FABRICATING FLATTENED TUBE FINNED HEAT EXCHANGER

CARRIER CORPORATION, Far...

1. A method for assembling a flattened tube heat exchanger having a first tube bank and a second tube bank, the method comprising:
arraying a plurality of flattened heat exchange tube segments in parallel spaced relationship in a first layer;
installing at least one spacer clip on a longitudinally extending edge of each heat exchange tube segment of the plurality
of flattened heat exchange tube segments in the first layer; and

arraying a plurality of flattened heat exchange tube segments in parallel spaced relationship in a second layer and disposing
each heat exchange tube segment of the plurality of flattened heat exchange tube segments in the second layer in alignment
with a respective one of the heat exchange tube segments of the plurality of flattened heat exchange tube segments in the
first layer and in engagement with the at least one spacer clip installed on the heat exchange tube segment of the plurality
of flattened heat exchange tube segments in the first layer;

wherein said spacer clip has a body having a first edge having an inwardly extending groove having a depth and a width, and
the installing the at least one spacer clip comprises receiving the longitudinally extending edge of the heat exchange tube
exchange tube segment of the plurality of flattened heat exchange tube segments in the first layer into said groove in the
first edge.

US Pat. No. 9,746,220

REFRIGERANT VAPORIZER

Carrier Corporation, Jup...

1. A system comprising:
a compressor;
a vaporizer comprising:
an inlet,
an oil outlet,
a vent,
a primary flowpath extending from the inlet to the vent,
a hot gas inlet,
a cooled gas outlet,
a gas flowpath extending from the hot gas inlet to the cooled gas outlet,
a vaporizer chamber downstream of the inlet along the primary flowpath,
a gas conduit along the gas flowpath in heat exchange relation with the primary flowpath,
a sump below the vaporizer chamber,
a two-stage immersion heater,
a housing enclosing the sump and the vaporizer chamber, and
a passageway from the vaporizer chamber to the sump;
an oil return line coupling the oil outlet to an oil return port of the compressor;
an oil pump along the oil return line;
a pressure reference branch conduit with a pressure reference branch flowpath branching from the oil return line and extending
to a reference pressure port of the vaporizer; and

a pressure regulating valve along the pressure reference branch conduit.

US Pat. No. 9,652,958

CHAMBER-LESS SMOKE SENSOR

CARRIER CORPORATION, Far...

1. A method for detecting smoke via a chamber-less smoke sensor, comprising:
applying, one or more filters to eliminate a flooding of ambient light upon the smoke sensor;
emitting, by a source, light;
detecting, by at least one detector, at least a portion of the emitted light; andprocessing, by a processor, the detected light to signal an alarm condition when one or more threshold levels are reached;
wherein the emitted light comprises a plurality of different wavelengths; and
wherein the detected light comprises the emitted light obscured by one or more particles located in the smoke sensor, and
wherein the threshold level is based on a difference in the detected light as a function of the plurality of different wavelengths.

US Pat. No. 9,511,322

DEHUMIDIFICATION SYSTEM FOR AIR CONDITIONING

CARRIER CORPORATION, Far...

1. An air temperature and humidity control device comprising:
a heat pump including a condenser, an evaporator, and a compressor;
a humidity controller having a first contactor fluidly coupled to the evaporator, the first contactor including at least one
contact module having a porous sidewall that defines an internal space through which a liquid desiccant flows; and

a vacuum pump coupled to the first contactor and configured to generate a pressure difference between an internal side and
an external side of the porous sidewall such that heat and/or water vapor transfers between the vacuum and the liquid desiccant.

US Pat. No. 9,341,408

SCRUBBER SYSTEM WITH MOVING ADSORBENT BED

CARRIER CORPORATION, Far...

1. A refrigerated transport container comprising:
a cargo box;
a compressor and a condenser/gas cooler module isolated from the cargo box by a partition panel;
an evaporator module including an evaporator heat exchanger and an associated evaporator fan disposed in air flow communication
with the cargo box;

a regenerative scrubber system for removing carbon dioxide from the atmosphere within the cargo box, the regenerative scrubber
system comprising:

a scrubber module containing a carbon dioxide adsorbent material; and
an actuator for moving the scrubber module to pass the carbon dioxide adsorbent material alternately between a first flow
of air to be cleaned drawn by the evaporator fan from within the cargo box from which carbon dioxide is removed and a second
flow of air from an environment outside the cargo box for regenerating the carbon dioxide adsorbent material by removing collected
carbon dioxide from the carbon dioxide adsorbent material.

US Pat. No. 9,103,560

FURNACE VENT WITH WATER-PERMEABLE INNER PIPE

Carrier Corporation, Far...

1. A vent system for a combustion device, comprising:
an outer pipe; and
an inner pipe substantially made of a nanoporous ceramic material that is permeable to water or water vapor and having a plurality
of substantially parallel longitudinal sections that are longitudinally disposed within the outer pipe, the inner pipe defining
a first passageway, the outer and inner pipes defining a second passageway therebetween, flue gas being conveyed by one of
the first passageway or the second passageway, intake air being conveyed by one of the first passageway or the second passageway,
the flue gas and intake air being conveyed by different passageways, where water or water vapor is transferred from the flue
gas to the intake air through the inner pipe, the inner pipe further substantially made of a nanoporous ceramic material that
is impermeable to corrosive gas components of the flue gas.

US Pat. No. 9,909,790

METHODS AND SYSTEMS FOR CONTROLLING INTEGRATED AIR CONDITIONING SYSTEMS

CARRIER CORPORATION, Far...

1. An integrated air conditioning system, comprising:
a first air conditioning unit having a first evaporator with a first input and a first output, the first evaporator exchanging
thermal energy between a first refrigerant flow and a working fluid, said first air conditioning unit having a first compressor;

a second air conditioning unit having a second evaporator with a second input and a second output, the second evaporator exchanging
thermal energy between a second refrigerant flow and the working fluid said second air conditioning unit having a second compressor;

a first conduit fluidly connecting said first input with said second output to convey the working fluid therebetween; and
a second conduit fluidly connecting said second input with said first output to convey the working fluid therebetween, wherein
said first and second conduits and said first and second evaporators form a working fluid circuit.

US Pat. No. 9,499,027

OPERATION OF TRANSPORT REFRIGERATION SYSTEMS TO PREVENT ENGINE STALL AND OVERLOAD

CARRIER CORPORATION, Far...

1. A method for optimizing the performance of a transport refrigeration system having a transport refrigeration unit powered
by a diesel engine, comprising matching a capacity output of the transport refrigeration unit to an available shaft power
of the diesel engine; the method further comprising:
monitoring an operating engine load of the diesel engine;
monitoring an operating engine speed of the diesel engine:
operating the transport refrigeration system at the capacity output necessary to meet a current refrigeration demand load
so as long as both the operating engine load of the diesel engine is not at 100% and the operating speed of the diesel engine
is at least 98% of a target engine operating speed; and

reducing the cooling capacity output of the refrigeration unit when the operating engine load of the diesel engine is greater
than 90% and an operating speed of the diesel engine is less than 98% of a target engine operating speed.

US Pat. No. 9,415,335

LIQUID VAPOR PHASE SEPARATION APPARATUS

CARRIER CORPORATION, Far...

1. A phase separation apparatus for separating a two-phase fluid flow into a liquid phase portion and a vapor phase portion,
comprising:
a shell having an upper end cap and a lower end cap and defining an interior volume having an upper region, a lower region
and a central region between the upper region and the lower region;

an auger assembly disposed within the interior volume defined by said shell, the auger assembly having an elongated support
tube extending along a central vertical axis of said shell and a helical spiral member extending about said support tube and
defining in association with said shell a continuous spiral fluid flow passage within the interior volume, said support tube
having an open upper end and at least one fluid flow outlet in a sidewall of said support tube spaced from the open upper
end and opening into the central region of the interior volume, the at least one flow outlet separate from the open upper
end, the at least one fluid flow outlet positioned at a middle portion of the support tube;

a vapor outlet penetrating through the upper end cap to open in fluid communication with the upper region of the interior
volume;

a liquid outlet penetrating through the lower end cap to open through an upper surface of the lower end cap in fluid communication
with the lower region of the interior volume; and

a fluid inlet penetrating through the upper end cap to open in fluid communication into the open upper end of said support
tube to convey fluid from the fluid inlet to the fluid flow outlet in the sidewall of said support tube.

US Pat. No. 9,403,202

METHOD FOR LUBRICATING INTERIOR OF HEAT EXCHANGER TUBE

CARRIER CORPORATION, Far...

1. A method for lubricating an interior of a heat exchanger tube, comprising:
applying a lubricant including a mixture of an additive and a solvent onto an interior of the tube;
injecting a first flow of a drying agent into a first end of the tube to force a first portion of the solvent from the interior
of the tube via a second end of the tube;

heating the flow of the drying agent to remove additional solvent from the interior of the tube via evaporation;
forming the tube to a selected shape after injection of the first flow of the drying agent; and
injecting a second flow of the drying agent into the tube to force a second portion of the solvent from the interior of the
tube, thereby leaving a coating of the additive on the interior of the tube.

US Pat. No. 9,140,489

POWER SAVINGS APPARATUS FOR TRANSPORT REFRIGERATION SYSTEM, TRANSPORT REFRIGERATION UNIT, AND METHODS FOR SAME

CARRIER CORPORATION, Far...

1. A transport refrigeration unit for regulating the temperature of an enclosed volume, the transport refrigeration unit comprising:
a refrigeration module operatively coupled to said enclosed volume, said refrigeration module including:
a supply port to output air to said enclosed volume at a supply temperature;
a return port to return air from said enclosed volume to the refrigeration module at a return temperature;
at least one component configured to operate in a first cooling mode and an economy mode; and
a controller configured to change a length of a subsequent operating interval for said at least one component in said economy
mode based on at least one previous operating interval of said at least one component in said economy mode.

US Pat. No. 9,890,982

DISCRETE FREQUENCY OPERATION FOR UNIT CAPACITY CONTROL

CARRIER CORPORATION, Far...

1. A refrigerant system comprising:
an electric motor for driving an associated component at a variable speed that is a function of an operating frequency of
the electric motor;

a control for controlling the operating frequency of the electric motor to provide a continuously variable speed drive for
the associated component by alternating the operating frequency of the electric motor between a first operating frequency
and a second operating frequency so that the variable speed at which the component is driven is a function of a combination
of the first operating frequency and the second operating frequency, the first operating frequency and the second operating
frequency selected to avoid undesirable frequencies which create mechanical and acoustic resonance, wherein the first operating
frequency and the second operating frequency are selected such that the motor operates as if the motor were operating at a
selected desired operating frequency between the first operating frequency and the second operating frequency; and

a sensor disposed at the refrigerant system and operably connected to the control, the sensor configured to communicate undesirable
characteristics associated with an operating frequency to the control;

wherein the control is self-adjusting, such that when mechanical or acoustic resonance is detected, the control adjusts the
first operating frequency and/or the second operating frequency.

US Pat. No. 9,853,768

SYSTEM AND METHOD OF DATA COMMUNICATION THAT COMPENSATES FOR WIRE CHARACTERISTICS

CARRIER CORPORATION, Far...

1. A system for compensating wire characteristics, the system comprising:
a transmission pre-emphasis module of a transmission transceiver that sends high amplitude pre-emphasis training bits and
low amplitude pre-emphasis training bits along a wired connection;

and a receiver that receives the high amplitude pre-emphasis training bits and low amplitude pre-emphasis training bits along
the wired connection; the receiving comprising:

a pre-emphasis analysis module of the receiver that analyzes the high amplitude pre-emphasis training bits and low amplitude
pre-emphasis training bits to determine a pre-emphasis level; and

a controller that interfaces with the transmission transceiver and the receiver, the controller communicating the pre-emphasis
level to the transmission transceiver.

US Pat. No. 9,825,574

CHILLER MOTOR CONTROL SYSTEM

CARRIER CORPORATION, Far...

1. A chiller system including:
a motor;
a motor controller connected to the motor, the motor controller operative to generate a control signal;
a rectifier connected to an alternating current (AC) power source, the rectifier operative to receive AC power and output
direct current (DC) power;

a DC bus connected to the rectifier;
a first inverter connected to the DC bus and the motor, the first inverter operative to receive DC power from the DC bus and
output AC power to the motor;

a variable frequency drive unit controller communicatively connected to the motor controller and the first inverter, the variable
frequency drive unit controller receiving the control signal from the motor controller; and

a second inverter separate from the first inverter, the second inverter connected to the DC bus operative to receive DC power
and output AC power to the motor controller.

US Pat. No. 9,695,978

HEAT EXCHANGER FIN STOCK LUBRICATION SYSTEM

CARRIER CORPORATION, Far...

1. A lubrication system for heat exchanger fin stock comprises:
a head configured to receive the fin stock, the head including:
a stationary lower jaw fixed to a base; and
an upper jaw movable relative to the lower jaw, the fin stock receivable between the lower jaw and the upper jaw, each of
the lower jaw and the upper jaw including a strip of non-abrasive material connected thereto and configured to absorb a lubricant
and wipe the lubricant onto a surface of the fin stock;

an actuator secured to the base and to the upper jaw and configured to apply force to the upper jaw to both move the upper
jaw in a linear direction relative to the lower jaw into engagement with the fin stock and move the upper jaw out of engagement
with the fin stock;

a first pressure regulator operably connected to the actuator and configured to control a first pressure at which upper jaw
is moved out of engagement with the fin stock;

a second pressure regulator separate from the first regulator operably connected to the actuator and configured to control
a second pressure at which the upper jaw is moved into engagement with the fin stock; and

a controller configured to control both operation of the actuator and a replenishable supply of the lubricant delivered to
the strip of non-abrasive material.

US Pat. No. 9,488,384

HEAT PUMP WATER MODULE WITH CONDENSING COIL IN WATER STORAGE TANK

Carrier Corporation, Jup...

1. A water heater module comprising:
a first heat exchanger, configured for flow of a refrigerant therethrough and to be submersible inside a water storage tank,
the first heat exchanger including an inlet and an outlet;

a first three-way valve directly coupled to the outlet via an outlet conduit;
a first connector directly coupled to the first three-way valve via a first conduit; and
a second connector directly coupled to the first three-way valve via a second conduit;
wherein the first three-way valve is operable to direct the flow of the refrigerant from the first conduit to the second conduit
in an interior space conditioning mode, and the first three-way valve is operable to direct the flow of the refrigerant from
the outlet conduit to the second conduit in a water heating mode;

a second three-way valve operably directly coupled to the inlet via an inlet conduit; and
a controller in communication with the first and second three-way valves;
wherein the controller is operable to operate the first and second three-way valves to configure a first refrigerant circuit
to establish the water heating mode and to configure a second refrigerant circuit to establish the interior space conditioning
mode.

US Pat. No. 9,476,614

REFRIGERATION CIRCUIT AND METHOD FOR OPERATING A REFRIGERATION CIRCUIT

Carrier Corporation, Jup...

1. A refrigeration circuit having a refrigerant, especially CO2, circulating therein, said refrigeration circuit enabling
a transcritical overcritical operation, said refrigeration circuit comprising, sequentially in the direction of flow:
a condenser/gas cooler (1);

an intermediate relief device (a), relieving downstream pressure to an intermediate pressure of 5-40 bar;
a collecting container (3) having a gas space;

a relief device (b, c);
an evaporator (E2, E3); and

a compressor unit (6) having an input connected to the evaporator (E2, E3) by a suction line (5),
wherein:
the gas space of the collecting container (3) is connected or connectible to the input of the compressor unit (6);

a relief valve (e) is in the connection line (11, 12) between the gas space of the collecting container (3) and the input of the compressor unit (6);

a heat exchanger/subcooler (E5) is between the collecting container (3) and the relief device (b, c); and

in operation the refrigerant drawn off the collecting container (3) is subcooled in the heat exchanger/subcooler (E5) with respect to the flash gas being drawn off the collecting container (3) via the connection line (11, 12) and is expanded by the expansion valve (e).

US Pat. No. 9,452,486

AUTOMATIC FLUXING MACHINE

CARRIER CORPORATION, Far...

1. An automatic fluxing machine for use with a joint including tubular and frusto-conical parts, the automatic fluxing machine
comprising:
a frusto-conical dispenser having through-holes and an upper edge;
a tubular plug, which extends tightly into the tubular part such that an upper portion, a surface of the frusto-conical dispenser
and the frusto-conical part define an annulus into which flux material is dispensable through the through-holes and which
comprises a first side extending along the surface of the frusto-conical dispenser, a second side extending along the frusto-conical
part and a third side extending along the upper portion,

the tubular plug comprising a stopper disposed therein to prevent flux material flow through the tubular plug and into the
tubular part; and

a supplying unit including a conduit, which is coupled to the upper edge of the frusto-conical dispenser, to supply the flux
material to the frusto-conical dispenser.

US Pat. No. 9,353,993

CONDENSATE TRAP HEATER FOR CONDENSING GAS FURNACE

CARRIER CORPORATION, Far...

1. A heating mat for a furnace condensate trap, comprising;
a resistive heating trace comprising a first end terminating in a first electrode and a second end terminating in a second
electrode;

a mat cable electrically coupled to the first electrode and the second electrode, wherein the mat cable is configured to supply
power to the heating mat during operation of the heating mat; and

an adhesive configured to attach the heating mat to one or more external surfaces of a furnace condensate trap, wherein the
heating mat has a thickness between about 0.67 mm and about 1.5 mm and is configured to prevent freezing of water within the
furnace condensate trap.

US Pat. No. 9,178,405

MAGNETIC DRIVE COUPLING APPARATUS

CARRIER CORPORATION, Far...

1. A magnetic drive coupling apparatus, comprising:
a drive unit having a first rotatable shaft and an outer drive coupling rotatable with the first rotatable shaft, the outer
drive coupling comprising a radially inwardly facing surface and a radially outwardly facing surface along which a fan pulley
groove is defined;

a driven unit having an end face and a second rotatable shaft extending through the end face;
a magnetic drive coupling transmitting rotation between the first and second rotatable shaft and having a first magnetically
attractive part disposed along the radially inwardly facing surface and associated with the first rotatable shaft and a second
magnetically attractive part associated with the second rotatable shaft; and

a sealing unit coupled to the end face to encompass the second magnetically attractive part and to prevent leakage from the
driven unit, the sealing unit comprising an adapter plate to mate with a bolt pattern of the end face and a pressure barrier
coupled to the adapter plate to form a hermetic seal encompassing the second magnetically attractive part, the pressure barrier
axially overlapping with an end portion of the second rotatable shaft and the outer drive coupling and comprising an annular
mating section that mates with the adapter plate, a closed end and an annular sidewall extending axially between the mating
section and the closed end.

US Pat. No. 9,139,066

COMBINED OPERATION AND CONTROL OF SUCTION MODULATION AND PULSE WIDTH MODULATION VALVES

Carrier Corporation, Far...

8. A method of operating a refrigerant system comprising the steps of:
a) providing a compressor, said compressor having an electric motor driving a compressor pump unit, and being housed within
a compressor shell;

b) providing a first heat exchanger downstream of said compressor, an expansion device downstream of said first heat exchanger,
a second heat exchanger downstream of said expansion device, and refrigerant passing from said compressor through said first
heat exchanger, through said expansion device, to said second heat exchanger, and then returning through a suction port back
into said compressor shell; and

c) passing refrigerant from said second heat exchanger to a main flow line having a pulse width modulation controlled valve,
and a branch line having a second valve, said second valve having an opening that is controlled to control pressure within
said compressor shell and said second valve controlling said pressure between 0.5 psia and 2 psia, when said pulse width modulation
valve is in a closed position.

US Pat. No. 9,687,086

REFRIGERATED SALES FURNITURE

CARRIER CORPORATION, Far...

1. Refrigerated sales furniture comprising:
a furniture rear wall extending substantially upright from a base;
a goods presentation space including a bottom area;
an air suction channel for sucking air from a lower front end portion of the refrigerated sales furniture, the air suction
channel having a rear air suction channel portion being arranged at a position behind the bottom area of the goods presentation
space and arranged adjacent to and substantially in parallel to the furniture rear wall;

a fan for conveying air from the air suction channel through an air pressure channel, through an evaporator, through a cold
air channel and through a perforated goods presentation space rear wall to the goods presentation space, the fan being arranged
between the air suction channel and the air pressure channel at a height corresponding to the height of the bottom area of
the goods presentation space;

the air pressure channel having a lower air pressure channel portion that extends in front of and substantially in parallel
to the rear air suction channel portion of the air suction channel;

the cold air channel having a lower cold air channel portion for conveying cold air through the lower rear wall portion of
the perforated goods presentation space rear wall to the bottom area of the goods presentation space, the lower rear wall
portion of the perforated goods presentation space rear wall being positioned behind the bottom area of the goods presentation
space, the lower cold air channel portion extending between the lower air pressure channel portion of the air pressure channel
and the lower rear wall portion of the perforated goods presentation space rear wall;

wherein the air pressure channel has an upper air pressure channel portion of greater width than the lower air pressure channel
portion, the upper air pressure channel portion extending between the furniture rear wall and the cold air channel; and

further comprising a vertical wall separating the upper air pressure channel portion from the cold air channel, the vertical
wall making a bend so as to define a reduced width upper section of the upper air pressure channel portion.

US Pat. No. 9,618,272

TEMPERATURE AND HUMIDITY INDEPENDENT CONTROL AIR CONDITIONING SYSTEM AND METHOD

CARRIER CORPORATION, Far...

1. A temperature and humidity independent control air conditioning system, comprising:
a high temperature cooling unit,
a low temperature cooling unit,
a humidity processing unit, and
an indoor unit, wherein
coolant with a first temperature provided by the high temperature cooling unit, after flowing into the indoor unit, becomes
coolant with a second temperature, which flows back into the high temperature cooling unit;

coolant with a third temperature provided by the low temperature cooling unit, after flowing into the humidity processing
unit, becomes coolant with a fourth temperature, which flows back into the low temperature cooling unit; and

wherein a portion of the coolant with the second temperature is divided away from flowing back into the high temperature cooling
unit and into the low temperature cooling unit to become coolant with a fifth temperature, which flows back into the high
temperature cooling unit.

US Pat. No. 9,501,071

METHOD AND APPARATUS FOR ESTABLISHING A SET BACK TEMPERATURE FOR AN ENVIRONMENTAL CONTROL SYSTEM

CARRIER CORPORATION, Far...

1. A method for establishing a set back temperature for an environmental control system, the method comprising:
entering an energy saver phase having a predetermined time period;
determining an effective thermal load for an environmental control zone;
determining an effective thermal response of the environmental control zone, the effective thermal response representing a
ratio of a net capacity of an environmental control device to a rate of change of temperature of the environmental control
zone;

calculating a set-back temperature based on the effective thermal load for the environmental control zone, the effective thermal
response of the environmental control zone and the predetermined time period;

operating an environmental control device to establish and maintain the set-back temperature for a portion of the predetermined
time period; and

operating the environmental control device to establish a desired temperature substantially by an end of the predetermined
time period.

US Pat. No. 9,358,859

TRANSPORT REFRIGERATION SYSTEM POWERED BY DIESEL ENGINE WITH PRESSURIZED COMBUSTION AIR

CARRIER CORPORATION, Far...

1. A transport refrigeration system for providing temperature conditioned air to a cargo storage space of a truck, trailer,
intermodal container or other transport container, the transport refrigeration system including a prime mover for powering
at least one component associated with the transport refrigeration system, characterized in that the prime mover comprises
a diesel engine equipped with a combustion air pressurization apparatus;
wherein the prime mover comprises a diesel engine equipped with a turbo-charger; and the transport refrigeration system includes:
an electric generator for supplying electric power to drive a refrigerant compression device, the electric generator being
directly driven by said turbo-charged diesel engine.

US Pat. No. 9,239,183

METHOD FOR REDUCING TRANSIENT DEFROST NOISE ON AN OUTDOOR SPLIT SYSTEM HEAT PUMP

CARRIER CORPORATION, Far...

1. A method for reducing defrost noise in a heat pump, comprising: energizing a fan configured to urge a heat transfer medium
across a heat exchanger; initiating a defrost cycle to warm the heat exchanger, comprising:
de-energizing a compressor fluidly coupled to the heat exchanger;
delaying for a first delay period with the fan energized and the compressor de-energized;
energizing a reversing valve after the first delay period, to reverse a flow of a refrigerant flow between the compressor
and the heat exchanger, such that the refrigerant warms the heat exchanger;

delaying for a second delay period with the fan energized, the compressor de-energized, and the reversing valve energized;
energizing the compressor after the second delay period and then de-energizing the fan;
defrosting the heat pump during the defrost cycle; and
terminating the defrost cycle.

US Pat. No. 9,086,237

VACUUM DRYING OF HEAT EXCHANGER TUBES

CARRIER CORPORATION, Far...

1. A method for removing a solvent from a solvent wetted surface of a heat exchange tube, comprising:
placing the solvent wetted heat exchange tube in a vacuum chamber;
evacuating the vacuum chamber to a lower pressure at which the solvent boils to a solvent vapor; and
reclaiming the solvent vapor;
wherein placing the heat exchange tube in a vacuum chamber comprises placing a heat exchange tube having an inside surface
wetted with a prelubricant including a solvent carrying a lubricant.

US Pat. No. 10,690,385

ROTARY COMPRESSOR AND REFRIGERATING CYCLE DEVICE HAVING BEARINGS CONTAINING ANNULAR GROOVE/ELASTIC PORTION ARRANGEMENT

TOSHIBA CARRIER CORPORATI...

1. A rotary compressor, comprising:a rotary shaft;
an electric motor portion connected with one end of the rotary shaft;
a compression mechanism portion connected with the other end of the rotary shaft and including a cylinder which has a cylinder chamber formed inside the cylinder and a main bearing and a sub-bearing to support the rotary shaft rotatably, the main bearing being positioned at a side of the cylinder chamber which is directed to the electric motor portion, the sub-bearing being positioned at a side of the cylinder chamber which is opposite to the electric motor portion; and
a hermetic case which houses the rotary shaft, the electric motor portion and the compression mechanism portion, wherein
the diameters of portions of the rotary shaft supported by the main bearing and the sub-bearing are formed to be the same substantially, the contact length of the main bearing and the rotary shaft along an axial direction of the rotary shaft is set to be larger than the contact length of the sub-bearing and the rotary shaft along the axial direction of the rotary shaft, an annular groove is formed at an end portion of the main bearing on a side facing the cylinder chamber, an elastic portion which contacts the rotary shaft is formed at an inner peripheral side of the annular groove of the main bearing, another annular groove is formed at an end portion of the sub-bearing on a side facing the cylinder chamber, and an elastic portion which contacts the rotary shaft is formed at an inner peripheral side of the annular groove of the sub-bearing, and wherein
the depth of the annular groove of the main bearing is formed to be larger than the depth of the annular groove of the sub-bearing, an outer peripheral surface of the elastic portion of the main bearing is formed in a straight shape so that thicknesses of a base portion and a tip portion of the elastic portion are the same substantially, and an outer peripheral surface of the elastic portion of the sub-bearing is formed in a tapered shape so that a thicknesses of a base portion of the elastic portion is larger than a thicknesses of a tip portion of the elastic portion.

US Pat. No. 10,627,144

AIR CONDITIONING APPARATUS WITH COMPRESSOR DISCHARGE PRESSURE SENSING

Toshiba Carrier Corporati...

1. An air conditioning apparatus comprising:one or a plurality of indoor units each having an indoor heat exchanger, and an indoor expansion valve in which a degree of opening is variable;
an outdoor unit having an outdoor heat exchanger, a four-way valve, a compressor, a discharge pressure sensor configured to detect a pressure of a refrigerant discharged from the compressor, and a temperature sensor configured to detect a temperature of outside air; and
a controller configured to control each indoor expansion valve, the four-way valve, and the compressor, the controller configured to store a total value of a period during which a temperature detected by the temperature sensor is less than a predetermined temperature threshold value after a start of a heating operation, the controller configured to determine whether or not the total value of the period is equal to or greater than a predetermined reference time, the controller configured to determine whether or not a discharge pressure detected by the discharge pressure sensor is equal to or higher than a predetermined pressure threshold value,
wherein the one or plurality of indoor units are connected to the outdoor unit,
wherein the controller is configured to start a defrosting operation when the total value of the period becomes equal to or greater than the reference time,
wherein the controller is configured such that when the controller determines that the discharge pressure is equal to or higher than the pressure threshold value while the heating operation is performed, the controller sets a maximum time for continuing the defrosting operation to a first maximum time, and
wherein the controller is configured such that when the controller determines that the discharge pressure is less than the pressure threshold value while the heating operation is performed, the controller sets the maximum time for continuing the defrosting operation to a second maximum time shorter than the first maximum time.

US Pat. No. 9,746,230

FLAME RETARDANT DOOR FOR TRANSPORT REFRIGERATION UNIT

CARRIER CORPORATION, Far...

1. A transport refrigeration unit for conditioning an atmosphere within an interior of a refrigerated cargo box, the transport
refrigeration unit comprising:
a transport refrigeration unit structural frame including a section to be attached to a front wall of the refrigerated cargo
box; and

a front cover for enclosing the transport refrigeration unit and supported by the structural frame, the front cover having
a grille member to facilitate airflow over a condenser heat exchanger of the transport refrigeration unit;

the front cover including a plurality of doors positioned adjacent to the grille member, wherein at least one of said plurality
of doors having:

a body having an inner sheet and an outer sheet with both of said inner sheet and said outer sheet having a peripheral edge;
and

a joint formed between the respective peripheral edges of said inner and outer sheets such that the respective peripheral
edges are integrally bonded together to provide a cavity between said inner and outer sheets, wherein at least one of said
inner sheet and said outer sheet is formed of a flame retardant material.

US Pat. No. 9,625,206

TRANSPORT REFRIGERATION UNIT WITH AUXILIARY POWER CIRCUIT AND INTERLOCK

CARRIER CORPORATION, Far...

1. A transport refrigeration unit for conditioning an atmosphere within a transport cargo space, comprising:
an auxiliary electrical power circuit tapping off an electrical power circuit operatively associated with the transport refrigeration
unit as a source of electrical power to which an auxiliary system is connected when installed in operative association with
the transport refrigeration unit; and

a safety power interlock in operative association with a main power supply circuit of the transport refrigeration unit, the
safety power interlock breaking the main power supply circuit when the auxiliary system is removed.

US Pat. No. 9,555,464

TENSION EXPANSION CLAMPING TOOL BLOCK

CARRIER CORPORATION, Far...

1. An apparatus for expanding and belling a tube in tension, comprising:
a receiver for supporting a first end of a tube;
a stripper block assembly for orienting a second end of the tube along an axis, the stripper block assembly including a first
grip and a second grip movable in and out of engagement with a surface of the tube;

a movable belling tool axially aligned with the tube for belling a desired length of the tube and for supporting the second
end of the tube; and

an expander tool arranged to pass through the axially aligned tube to expand the tube, the expander tool including an expander
rod connected to an expander bullet, wherein a portion of the expander bullet has a diameter larger than an inner diameter
of the tube;

wherein the first grip and the second grip are movable between a first position and a second position, wherein movement of
the expander tool within the tube is limited by the first grip and the second grip when the first grip and the second grip
are in the second position and movement of the expander tool within the tube is not limited by the first grip and the second
grip when the first grip and the second grip are in the first position;

wherein the expander rod has a length sufficient to travel the whole tube length, the expander bullet being advanced from
the second end to the first end of the tube.

US Pat. No. 9,417,006

FRAME AND REFRIGERATING APPARATUS

CARRIER CORPORATION, Far...

12. A frame to be installed on a front side of a main body of a refrigerating apparatus, the frame comprising frame components
including an upper component, a lower component, a left component and a right component, among which, the upper component
and the lower component are attached to the left component and the right component respectively so as to form a rectangular
frame,
wherein a vacuum insulation panel material is placed inside of at least one of the frame components, the vacuum insulation
panel material comprising a core, the vacuum insulation panel material formed by packaging glass wool core material having
insulation characteristics together in a vacuum state with a high barrier packaging material;

wherein the at least one of the frame components comprises a component-body part and a component-cover part that is attached
to the component-body part, the component-body part and the component-cover part together form a chamber that holds the vacuum
insulation panel material;

wherein the component-body part and the component-cover part are attached together in a detachable manner.

US Pat. No. 9,228,767

METHOD FOR DETERMINING PROPER WIRING OF MULTIPLE 3 PHASE MOTORS IN A SINGLE SYSTEM

CARRIER CORPORATION, Far...

15. A method for determining proper wiring of components in a refrigeration system, the refrigeration system including at
least a first three-phase motor and a second three-phase motor, the method comprising:
energizing each of the three-phase motors with a first input phase rotation and recording a first set of performance data;
energizing each of the three-phase motors with a second input phase rotation and recording a second set of performance data;
evaluating the first and second sets of performance data and determining if the three-phase motors are properly wired;
operating the refrigeration system in a normal mode when each of the three-phase motors is properly wired; and
operating the refrigeration system in a less efficient mode when at least one three-phase motor is improperly wired wherein
the less efficient mode includes selecting a priority phase rotation for the refrigeration system, wherein each of the three-phase
motors is prioritized based on parameters selected from a decision matrix, and running the refrigeration system based on the
priority phase rotation selected.

US Pat. No. 10,054,998

AUTOMATICALLY ENABLED AIRPLANE-MODE PORTABLE POWER SOURCE

CARRIER CORPORATION, Far...

1. A portable power device comprising:an enclosure having a common side and a power side, wherein the power side includes a switched power line and an unswitched power line, wherein the switched power line is connected to at least one first connected electronic device and the unswitched power line is connected to at least one second connected electronic device;
a plurality of power elements housed within the enclosure arranged to supply power through the switched power line and the unswitched power line; and
a controller housed within the enclosure and configured to control the power output of the plurality of power elements through at least the switched power line,
wherein the controller is configured to (i) determine if the portable power device is located on an aircraft that is operating in a stationary, taxiing, or flight mode, and when the controller determines the aircraft is in the stationary, taxiing, or flight mode, the controller controls the switched power line to prevent power to be supplied from the plurality of power elements to the at least one first connected electronic device,
wherein the determination made by the controller is based on at least one of GPS location, RFID tagging or other RF proximity scheme, Wi-Fi location determination, and Bluetooth.

US Pat. No. 9,982,920

OPERATION OF A CASCADE AIR CONDITIONING SYSTEM WITH TWO-PHASE LOOP

CARRIER CORPORATION, Far...

1. A method of operating a heat transfer system comprising:starting operation of a first heat transfer fluid circulation loop including:
a fluid pumping mechanism;
a condenser for rejecting thermal energy from a first heat transfer fluid;
a condenser fan to urge an airflow across the condenser;
an expansion valve; and
an intermediate heat exchanger for absorbing thermal energy into the first heat transfer fluid;
wherein a first conduit in a closed fluid circulation loop circulates the first heat transfer fluid therethrough;
wherein starting operation of the first heat transfer fluid circulation loop includes:
opening of the expansion valve;
starting operation of the condenser fan after opening of the expansion valve; and
starting operation of the fluid pumping mechanism after starting operation of the condenser fan;
and
starting operation of a second two-phase heat transfer fluid circulation loop after starting operation of the first heat transfer fluid circulation loop, the second heat transfer fluid circulation loop in thermal connection with the first heat transfer circulation loop at the intermediate heat exchanger and including:
a liquid pump to urge a second heat transfer fluid through the second heat transfer circulation loop; and
an evaporator;
wherein a second conduit in a closed fluid circulation loop circulates the second heat transfer fluid therethrough, and is configured to exchange thermal energy between the first heat transfer fluid and the second heat transfer fluid at the intermediate heat exchanger; and
wherein operation of the liquid pump is started after operation of the fluid pumping mechanism.

US Pat. No. 9,890,980

SYSTEM AND METHOD OF FREEZE PROTECTION OF A HEAT EXCHANGER IN AN HVAC SYSTEM

Carrier Corporation, Jup...

1. A method of heat exchanger freeze protection for an HVAC system, the HVAC system including an indoor unit assembly further
including a heat exchanger including a suction port and a liquid port, a fan, and a temperature sensor operably coupled to
the heat exchanger; an outdoor unit assembly operably coupled to the indoor unit assembly, and a controller operably coupled
to the indoor unit assembly and the outdoor unit assembly, the method comprising the steps of:
(a) operating the indoor unit assembly and the outdoor unit assembly in a cooling mode, and operating the fan at an initial
airflow;

(b) operating the temperature sensor to measure a temperature value of the heat exchanger, upon expiration of a predetermined
time period;

(c) determining whether the temperature value is less than or equal to a first temperature preset value;
(d) operating the controller to increase a current airflow multiplier by an airflow offset if the current airflow multiplier
is less than a maximum airflow multiplier limit and the temperature value is less than or equal to the first temperature preset
value;

(e) operating the fan at an increased airflow determined by the formula:
Current airflow=Initial airflow×(Current airflow multiplier+airflow offset).

US Pat. No. 9,869,499

METHOD FOR DETECTION OF LOSS OF REFRIGERANT

CARRIER CORPORATION, Far...

1. A method for detecting in real-time a refrigerant charge loss in a refrigerant vapor compression system having a refrigerant
circuit including a refrigerant compression device, a refrigerant heat rejection heat exchanger, an evaporator and an electronic
expansion valve operatively associated with the evaporator, the method comprising:
determining at a controller whether both a sensed evaporator outlet superheat exceeds a target evaporator outlet superheat
by at least a preset amount of superheat and a sensed degree of openness of the electronic expansion valve exceeds a preset
degree of openness for a preset time of period;

in response to both the sensed evaporator outlet superheat exceeding the target evaporator outlet superheat by at least the
preset amount of superheat and the sensed degree of openness of the electronic expansion valve exceeding the preset degree
of openness for the preset time of period, determining at the controller whether at least one air temperature of a sensed
supply air temperature of a flow of air having traversed the evaporator or a sensed return air temperature of a flow of air
returning to the evaporator is changing at a rate less than a preset air temperature rate of change; and

in response to the at least one air temperature of the sensed supply air temperature of a flow of air having traversed the
evaporator or the sensed return air temperature of a flow of air returning to the evaporator changing at a rate less than
the preset air temperature rate of change, the controller generating a service alarm indicating a loss of charge warning.

US Pat. No. 9,865,766

ULTRAVIOLET PHOTODETECTORS AND METHODS OF MAKING ULTRAVIOLET PHOTODETECTORS

Carrier Corporation, Far...

1. A method of making an ultraviolet (UV) photodetector, comprising:
applying a metal-containing solution to a substrate using a spin coat technique to form a metal-containing coat, wherein the
metal-containing solution comprises a stabilizer;

baking the metal-containing coat;
pyrolyzing the metal-containing coat to form a metal-containing oxide film according to MgxZn(1-x)O with a cubic crystalline structure; and

calcining the metal-containing oxide film to form a metal-containing oxide layer.

US Pat. No. 9,382,906

MULTI-STAGE RECIPROCATING COMPRESSOR

CARRIER CORPORATION, Far...

1. A multi-stage reciprocating compressor, comprising:
a working fluid inlet port;
a working fluid reservoir disposed in a crank case of the reciprocating compressor in fluid communication with the working
fluid inlet port for housing of low pressure working fluid drawn into the reciprocating compressor, the crank case further
including a crank shaft, the crank shaft is located in the working fluid reservoir;

a cylinder block defining at least two low stage cylinder and a high stage cylinder, each of the low stage cylinders having
a low stage piston disposed therein and operably connected to the crank shaft, the high stage cylinder having a high stage
piston disposed therein and operably connected to the crank shaft;

a cylinder head secured to the cylinder block overlying the low and high stage cylinders, the cylinder head defining an upper
mid-stage plenum fully enclosed by a side wall of the cylinder head in fluid communication with the low stage cylinders and
the high stage cylinder for communicating a working fluid discharged from the low stage cylinder to the high stage cylinder;
and

a valve plate disposed between the cylinder block and cylinder head;
the cylinder block defining a lower mid-stage plenum in fluid communication with the upper mid-stage plenum defined by the
cylinder head via a valve plate port;

the cylinder block and the cylinder head together defining a low stage plenum in fluid communication with the working fluid
reservoir, the working fluid drawn from the working fluid reservoir and into the low stage plenum and from the low stage plenum
through the valve plate into the low stage cylinders during a suction stroke of the low stage pistons;

the working fluid remaining in the compressor when flowing from the low stage cylinders into the high stage cylinder, a discharge
port of each of the low stage cylinders and a suction port of the high stage cylinder disposed on a same lateral side of a
plane defined by and axis of symmetry of the valve plate and a rotational axis of the crank shaft.

US Pat. No. 9,263,979

METHOD FOR SMOOTH MOTOR STARTUP

CARRIER CORPORATION, Far...

1. A method of conducting smooth motor startup, the method comprising:
operating a motor in an open loop control scheme at startup by applying error commands to current regulators from a feedback
loop, which takes current information derived from a control signal output from the current regulators to an Inverse Park
transformation and a speed reference-derived ramping angle command to generate the error commands at serially arranged Clark
and Park transformations, the speed-derived ramping angle command being received at the Inverse Park and Park transformations;

operating the motor in a closed loop sensorless control scheme at a time after startup by applying the error commands to the
current regulators from the feedback loop, which takes current information derived from the control signal output from the
current regulators to the Inverse Park transformation and actual rotor speed and angle estimates to generate the error commands
at the serially arranged Clark and Park transformations, the actual rotor angle estimate being received at the Inverse Park
and Park transformations and the actual rotor speed estimate being received at one of the current regulators; and

transitioning between the open loop control scheme and the closed loop control scheme by reducing a difference between an
estimated rotor angle of the motor and a commanded ramping angle of the motor.

US Pat. No. 10,147,212

METHOD TO CREATE DISPLAY SCREENS FOR A CONTROLLER USED IN A BUILDING AUTOMATION SYSTEM

CARRIER CORPORATION, Far...

1. A controller for controlling components in a building automation system comprisinga processor;
a display operably coupled to the processor;
a memory operably coupled to the processor; and
executable software stored in the memory, the executable software operable to display at least one textual element on the display;
wherein the at least one textual element comprises a plurality of characters placed therein to form a word;
wherein the word may be displayed in a plurality of languages, the executable software operable to create a maximum character parameter based upon which language translation contains the maximum number of characters for the word;
wherein the at least one textual element is sized based at least in part on the maximum character parameter.

US Pat. No. 10,006,662

CONDENSING HEAT EXCHANGER FINS WITH ENHANCED AIRFLOW

CARRIER CORPORATION, Far...

1. A plate fin for a heat exchanger comprising:a base plate;
a plurality of holes formed in the base plate, the plurality of holes being substantially identical and sized to receive a heat exchanger tube of the heat exchanger;
a plurality of generally annular collars, each collar being positioned substantially coaxially within one of the plurality of holes, wherein the plurality of collars is substantially less than the plurality of holes such that a portion of the plurality of holes do not include collars, wherein each collar is sized to receive a heat exchanger tube and extends beyond a front surface of the base plate and an end of each collar is arranged substantially parallel to the front surface of the base plate, wherein the portion of the plurality of holes do not include collars form a fluid flow path across a surface of the plate fin.

US Pat. No. 9,726,393

SYSTEM FOR COORDINATED FLOW CONTROL OF FLUIDS THROUGH A HEAT EXCHANGER

CARRIER CORPORATION, Far...

1. A system, comprising:
a heat exchanger;
a variable actuator in operative communication with the heat exchanger and configured to vary a flow of a first fluid through
the heat exchanger in a continuous manner;

a discrete actuator in communication with the heat exchanger and configured to vary a flow of a second fluid through the heat
exchanger at one of at least two discrete rates; and

a controller in communication with the variable actuator and the discrete actuator, wherein the controller is configured to
adjust the position of the variable actuator within a range dependent upon a current position of the discrete actuator.

US Pat. No. 9,568,226

REFRIGERANT CHARGE INDICATION

CARRIER CORPORATION, Far...

1. A method for indicating a level of refrigerant charge in a refrigerant vapor compression system having a compressor, a
condenser coil, an expansion device and an evaporator coil connected in serial relationship in refrigerant flow circuit, comprising:
sensing a pressure of the refrigerant leaving the condenser coil and generating a first signal indicative of a sensed refrigerant
pressure;

sensing a temperature of the refrigerant downstream of the condenser coil and upstream of the expansion device and generating
a second signal indicative of a sensed refrigerant temperature;

calculating in real-time a real-time value for the degrees of subcooling present based upon the sensed refrigerant pressure
and the sensed refrigerant temperature;

outputting an electrical signal indicative of the real-time value for the degrees of subcooling present;
calculating an average value for the degrees of subcooling over a preselected time period of system operation; and
outputting an indication of a refrigerant charge status over the preselected time period of system operation based on a step
consisting of comparing the average value for the degrees of subcooling over the preselected time period to a threshold;

wherein said outputting the electrical signal indicative of the real-time value for the degrees of subcooling present comprises
outputting a milli-volt electrical signal indicative of the real-time value for the degrees of subcooling present.

US Pat. No. 9,494,345

REFRIGERATION CIRCUIT AND METHOD FOR OPERATING A REFRIGERATION CIRCUIT

Carrier Corporation, Jup...

1. A refrigeration circuit having a refrigerant, especially CO2, circulating therein, said refrigeration circuit enabling
a transcritical overcritical operation, said refrigeration circuit comprising, sequentially in the direction of flow:
a condenser/gas cooler (1);

an intermediate relief device (a);
a collecting container (3) having a gas space;

a relief device (b, c);
an evaporator (E2, E3); and

a compressor unit (6) having an input connected to the evaporator (E2, E3) by a suction line (5),
wherein:
a further compressor unit (10) as well as at least one freezing consumer (E4) having a relief valve (d) connected upstream of it are provided;

in operation, refrigerant is sucked off from the collecting container (3) and led, via the suction line (4), to the relief device (b, c), expanded therein, led to the evaporator (E2, E3), evaporated therein, and led to the compressor unit (6) via a suction line (5);

in operation, a refrigerant partial flow withdrawn from the collecting container (3) is led via the suction line (4) and a line (8) branching off the suction line (4) to the relief valve (d), expanded therein, led to the freezing consumer (E4), evaporated therein, and led to the further compressor unit (10) via a line (9);

in operation, the refrigerant partial flow is compressed by the further compressor unit (10) to the input pressure of the compressor unit (6) and led to the input side of the compressor unit (6) via a suction line (11, 5);

the gas space of the collecting container (3) is connected or connectible to the input of the compressor unit (6); and

a relief valve (e) is in the connection line (11, 12) between the gas space of the collecting container (3) and the input of the compressor unit (6).

US Pat. No. 10,088,202

REFRIGERANT VAPOR COMPRESSION SYSTEM OPERATION

CARRIER CORPORATION, Far...

4. A method for protecting a refrigerant vapor compression system during a standstill period following shutdown of the refrigerant vapor compression system, the refrigerant vapor compression system including a primary refrigerant circuit including a refrigerant compression device, a refrigerant heat rejection heat exchanger downstream of said compression device, a refrigerant heat absorption heat exchanger downstream of said refrigerant heat rejection heat exchanger, and a primary expansion device disposed in the refrigerant circuit downstream of said refrigerant heat rejection heat exchanger and upstream of said refrigerant heat absorption heat exchanger, an outlet of the primary expansion device being connected directly to an inlet of the refrigerant heat absorption heat exchanger; said primary refrigerant circuit having a high-pressure side upstream with respect to refrigerant flow of the primary expansion device and a low-pressure side downstream with respect to refrigerant flow of the primary expansion device; said method comprising:whenever during standstill a refrigerant pressure within an isolated pocket on the low-pressure side of said refrigerant circuit exceeds a predetermined standstill equalization pressure limit, relieving the refrigerant pressure within said isolated pocket;
wherein relieving the refrigerant pressure within said isolated pocket comprises venting the refrigerant pressure within said isolated pocket to a portion of the low-pressure side of said refrigerant circuit having a refrigerant pressure therein less than the predetermined maximum standstill equalization pressure limit;
wherein relieving the refrigerant pressure within said isolated pocket comprises opening a flow control valve between said isolated pocket and the portion of the low-pressure side of said refrigerant circuit having a refrigerant pressure therein less than the predetermined maximum standstill equalization pressure limit.

US Pat. No. 9,951,974

FLASH TANK ECONOMIZER CYCLE CONTROL

CARRIER CORPORATION, Far...

1. A vapor compression system of the type having in serial refrigerant flow relationship a compressor, a heat rejection heat exchanger, an expansion device and an evaporator, comprising:a flash tank economizer disposed in serial flow relationship between the heat rejection heat exchanger and the expansion device, said flash tank economizer including:
a flash tank;
a first flow control device disposed between the heat rejection heat exchanger and said flash tank;
an economizer vapor line to fluidly interconnect said flash tank to a mid-stage of the compressor;
a second flow control device disposed in said economizer vapor line;
a third flow control device positioned in a line fluidly interconnecting said economizer vapor line to an inlet of said compressor separate from the mid-stage of the compressor, the line fluidly connecting the economizer vapor line to a point downstream of the evaporator and upstream of the inlet of said compressor with respect to the serial refrigerant flow; and
a controller to control said second flow control device and said third flow control device such that during periods in which pressure in said flash tank equals or exceeds the critical pressure of the refrigerant, said second and third flow control devices open to thereby drain refrigerant from said flash tank to thereby reduce the pressure in said flash tank to a subcritical condition.

US Pat. No. 9,568,220

EJECTOR MIXER

Carrier Corporation, Jup...

1. An ejector (200; 300; 400; 600) comprising:
a primary inlet (40);

a secondary inlet (42);

an outlet (44);

a primary flowpath from the primary inlet to the outlet;
a secondary flowpath from the secondary inlet to the outlet;
a mixer having a convergent section (204) downstream of the secondary inlet;

a diffuser downstream of the mixer; and
a motive nozzle (100) surrounding the primary flowpath upstream of a junction with the secondary flowpath and having an exit (110),
wherein:
the mixer comprises a downstream divergent section (206) downstream of the convergent section and having a divergence half angle (?2) of 0.1-2.0° over a first span of at least 3.0 times a minimum diameter (DMIN) of the mixer; and

the diffuser has a divergence half angle of greater than 2.0° over a second span of at least 3.0 times the minimum diameter
of the mixer.

US Pat. No. 9,568,235

THERMAL ENERGY STORAGE IN A CHILLER SYSTEM

CARRIER CORPORATION, Far...

1. A method of operating an air conditioning system comprising:
operating a refrigeration unit to cool a volume of refrigerant;
circulating the refrigerant to a heat exchanger;
cooling a serviced space via a thermal energy exchange between the serviced space and the refrigerant at the heat exchanger;
and

storing thermal energy generated by operation of the refrigeration unit at a thermal energy storage system;
wherein storing thermal energy at the thermal energy storage system includes causing a phase change of a volume of phase change
material having a transition temperature greater than the typical nighttime temperature experienced by the system, and less
than the typical daytime temperature experienced by the system.

US Pat. No. 9,459,007

LOW PROFILE VENT TERMINAL WITH VARIABLE EXHAUST ANGLE

CARRIER CORPORATION, Far...

1. A vent terminal for covering combustion vent pipes of an HVAC system, comprising:
a body defining a shielded air inlet configured to fluidly communicate with an air intake pipe, and an exhaust opening configured
to fluidly communicate with an exhaust pipe; and

a nozzle defining a flowpath therethrough, wherein, when the exhaust opening of the body is in fluid communication with the
exhaust pipe and the nozzle is coupled with the body, the flowpath is in fluid communication with the exhaust pipe via the
exhaust opening and the flowpath is oriented at an acute angle relative to the exhaust pipe;

wherein the body further comprises:
a backplate configured to be secured to a wall, the air intake pipe, the exhaust pipe, or a combination thereof, and having
first and second pipe couplings for coupling to the air intake pipe and the exhaust pipe, respectively; and

a cover coupled with the backplate, such that the backplate is positionable generally between the cover and the wall;
wherein the cover comprises a rear face and a sidewall extending rearward therefrom, wherein a gap between the sidewall and
the backplate provides at least a portion of the shielded air inlet.

US Pat. No. 9,404,669

APPLICATION OF ELECTRIC HEAT COIL IN FAN UNIT

CARRIER CORPORATION, Far...

1. A fan coil unit comprising:
a housing duct;
a fan assembly for circulating air through the housing duct;
a heat exchanger assembly arranged within the housing duct in a heat transfer relationship with the air circulating through
the housing duct, wherein at least one open space exists adjacent the heat exchanger assembly; and

an electric heat coil assembly located within the at least one open space adjacent the heat exchanger assembly;
wherein the at least one open space adjacent the heat exchanger assembly is triangular and the electric heat coil assembly
includes a plurality of electric heat coils arranged in a triangular shape.

US Pat. No. 9,234,369

FURNACE DOOR LATCH ASSEMBLY

CARRIER CORPORATION, Far...

1. A latch assembly for securing a furnace door to a furnace casing, comprising:
a latch for placement on an inside of the furnace door and rotatable between a latched position and an unlatched position,
the latch comprises a latch body, the latch body having a first latch portion, a diametrically opposed second latch portion,
and a latch cylindrical portion that is orthogonal to a longitudinal axis of the latch body;

a knob operable for placement on a front surface of the furnace door;
a latch plate for placement between the latch and the knob, wherein the latch plate comprises a latch plate body having a
second cylindrical portion and a bore, the latch plate comprising a plurality of protrusions located circumferentially around
the bore; and

a threaded screw for threadably coupling the knob to the latch such that rotation of the knob causes rotation of the latch;
wherein the latch plate supports the weight of the furnace door in a closed position and reduces a pinch force used for rotating
the knob;

wherein the latch cylindrical portion includes a plurality of tabs, each of the tabs operable to engage one of the plurality
of protrusions on the latch plate to hold the latch in position in the latched position or the unlatched position, the latch
is rotatable 360 degrees relative to the latch plate.

US Pat. No. 9,225,389

ELECTRICAL LOAD MONITORING APPARATUSES

CARRIER CORPORATION, Far...

1. An electrical load monitoring apparatus, comprising:
a first inductive coupling device, the first inductive coupling device configured to receive electrical energy associated
with an electrical conductor proximate thereto; and

a processor in electrical communication with the first inductive coupling device, wherein the processor is configured to receive
the electrical energy from the first inductive coupling device, configured to modulate a carrier wave signal in response to
the received electrical energy, and configured to direct the first inductive coupling device to inject the modulated carrier
wave signal into the electrical conductor.

US Pat. No. 9,121,634

CONTROLLED ATMOSPHERE SYSTEMS AND METHODS

CARRIER CORPORATION, Far...

1. A controlled atmosphere system to output a controlled atmosphere, the controlled atmosphere system comprising:
an air compressor to output compressed air,
a heater to heat the compressed air output by the compressor,
a nonelectric separator to divide the heated air into separate streams comprising its principal constituents of oxygen and
nitrogen, and

a controller coupled to the compressor, the heater, and the nonelectric separator to regulate temperature of the nonelectric
separator to control a discharge pressure of the compressor;

wherein the controller sets a nitrogen output for the nonelectric separator, sets a discharge pressure for the compressor
in response to the nitrogen output and controls at least one of pressure and temperature of the nonelectric separator to maintain
the discharge pressure of the compressor.

US Pat. No. 10,591,207

AUTOMATED AND PREDICTIVE MONITORING OF PERISHABLE GOOD PARAMETERS THROUGHOUT A COLD CHAIN DISTRIBUTION SYSTEM

CARRIER CORPORATION, Pal...

1. A system for monitoring goods within a distribution chain, the system comprising:a storage device to store parameters associated with the goods of a distribution chain, the storage device storing historical parameters for other goods, at least one of the parameters being received from a transport refrigeration system;
a parameter management system coupled to the storage device, the parameter management system including:
a predictive module to determine parameters that are missing, detect trends in the parameters, and determine predicted parameters to fill gaps in response to the missing parameters; and
a meshing module to determine output parameters by combining the predicted parameters and the parameters.

US Pat. No. 10,328,770

OPERATION OF TRANSPORT REFRIGERATION SYSTEMS TO PREVENT ENGINE STALL AND OVERLOAD

CARRIER CORPORATION, Far...

1. A method for controlling the performance of a transport refrigeration system having a transport refrigeration unit powered by an engine, comprising matching a capacity output of the transport refrigeration unit to an available shaft power of the engine; the method further comprising:monitoring an operating engine load of the engine;
monitoring an operating engine speed of the engine;
operating the transport refrigeration system at the capacity output necessary to meet a current refrigeration demand load so as long as both the operating engine load of the engine is not at or above a predetermined maximum value and the operating engine speed of the engine is not below a predetermined engine operating speed; and
reducing the cooling capacity output of the refrigeration unit to a non-zero cooling capacity by adjusting a flow of refrigerant to a compressor when the operating engine load of the engine is at or above the predetermined maximum value and an operating engine speed of the engine is less than the predetermined engine operating speed.

US Pat. No. 9,835,156

SEALING ARRANGEMENT FOR SEMI-HERMETIC COMPRESSOR

CARRIER CORPORATION, Far...

1. A semi-hermetic compressor comprising:
a casing main body having an end opening and a circumferential lip surrounding the end opening, the circumferential lip defining
a first radially facing circumferential surface;

a casing end cover having a circumferential lip defining a second radially facing circumferential surface, said first circumferential
surface and said second circumferential surface interfacing along an endless circumferential interface; and

a sealing arrangement for sealing said interface, said sealing arrangement including:
a first groove circumferentially formed in one of said first and second circumferential surfaces, said first groove having
a first base and a first sidewall;

a second groove circumferentially formed in the other one of said first and second circumferential surfaces and opposite said
first groove, said second groove having a second base and a second sidewall, the first base being opposite the second base,

wherein the first base and second base are radially facing surfaces and the first sidewall and the second sidewall are axially
facing surfaces such that the first and second bases are radially opposite and the first and second sidewalls are axially
opposite, the first and second bases respectively overlapping the second and first sidewalls and respectively extending beyond
the second and first sidewalls in both axial directions;

a sealing member disposed within a pocket between the first base, the second base, the second sidewall and the first sidewall,
said sealing member in sealing contact with the first base of said first groove and with the second base of said second groove;

wherein said sealing member is in sealing contact with one of the first sidewall and the second sidewall and not in sealing
contact with the other of the first sidewall and the second sidewall.

US Pat. No. 9,746,256

SHELL AND TUBE HEAT EXCHANGER WITH A VAPOR PORT

CARRIER CORPORATION, Far...

1. A shell and tube heat exchanger comprising:
a shell having an outer surface and an inner surface that defines a heat exchange zone;
a refrigerant pool zone arranged in the heat exchange zone;
a pool tube bundle of tubes located in the refrigerant pool zone;
a plurality of tube bundles arranged in the heat exchange zone above the refrigerant pool zone, each of the plurality of the
tube bundles including first and second wall members that define a tube channel, and a plurality of tubes arranged in the
tube channel, each of the first and second wall members having a first end that extends to a second end that is spaced from
the refrigerant pool zone, the plurality of tube bundles being spaced one from another so as to define one or more vapor passages;
and

a single refrigerant distributor positioned above the tube channel, the refrigerant distributor being configured and disposed
to deliver a refrigerant onto the plurality of tubes toward the refrigerant pool zone;

wherein the single refrigerant distributor includes an inlet, an outlet, and at least one distribution plate, the refrigerant
flowing through the refrigerant distributor by force of gravity;

wherein the single refrigerant distributor provides refrigerant to all the plurality of tube bundles.

US Pat. No. 9,739,519

STARTUP LOGIC FOR REFRIGERATION SYSTEM

CARRIER CORPORATION, Far...

1. A refrigeration system comprising:
a compressor having a first stage and a second stage;
a heat rejecting heat exchanger having a fan drawing ambient fluid over the heat rejecting heat exchanger, the heat rejecting
heat exchanger including an intercooler and a gas cooler, the intercooler coupled to an outlet of the first stage and the
gas cooler coupled to an outlet of the second stage;

an unload valve coupled to an outlet of the intercooler and a suction port of the first stage;
a flash tank coupled to an outlet of the gas cooler;
a primary expansion device coupled to an outlet of the flash tank;
a heat absorbing heat exchanger coupled to an outlet of the primary expansion device, an outlet of the heat absorbing heat
exchanger coupled to the suction port of the first stage; and

a controller configured to execute a startup process including the controller configured to control the fan speed to reduce
refrigerant heat loss in the heat rejecting heat exchanger;

wherein controlling the fan speed in the startup process includes the controller configured to control fan speed in response
to superheat, wherein the fan speed is proportional to the superheat.

US Pat. No. 9,759,462

HIGH EFFICIENCY EJECTOR CYCLE

Carrier Corporation, Jup...

17. The system of claim 1 wherein:
the first ejector outlet is coupled directly to the separator inlet; and
the second ejector secondary inlet is coupled directly to the separator gas outlet.

US Pat. No. 9,719,689

ADVANCED AIR TERMINAL

CARRIER CORPORATION, Far...

1. An air conditioning system including:
a climatic beam disposed in a room, the climatic beam including:
a fresh air chamber;
a primary air chamber;
a divider disposed along a length of the climatic beam to separate the fresh air chamber from the primary air chamber, wherein
the divider is a shutter movable along a length of the climatic beam to change a size of the fresh air chamber and the primary
air chamber; and

a coil supplied with a flow of fluid;
a fresh air duct connected to the fresh air chamber to provide a flow of fresh air thereinto;
a fan disposed at the primary air chamber configured to draw a flow of primary air across the coil and into the second portion;
and

a beam exit to flow the fresh air and the primary air into the room.

US Pat. No. 9,631,877

FURNACE HEAT EXCHANGER COUPLING

CARRIER CORPORATION, Far...

1. A coupling to connect a primary heat exchanger to a condensing heat exchanger of a furnace comprising:
a coupling box extending between a primary heat exchanger and a condensing heat exchanger and defining a flow path for flue
gas between a primary heat exchanger outlet and a condensing heat exchanger inlet;

a tube sheet secured to at least one tube of the condensing heat exchanger, the tube sheet being disposed at the condensing
heat exchanger inlet, wherein the tube sheet is secured to the at least one tube via a tube sheet collar, the tube sheet collar
is wider than the tube sheet such that a portion of the tube sheet collar extends beyond the tube sheet towards the coupling
box;

a liner disposed in the coupling box and secured to at least one tube of the condensing heat exchanger via at least one liner
collar, the liner collar is wider than the liner such that a portion of the liner collar extends beyond the liner towards
the at least one tube sheet collar, the liner being arranged parallel to and separated from the tube sheet such that the at
least one liner collar and the at least one tube sheet collar abut one another to define an insulating liner space between
the tube sheet and the liner, and such that the insulating liner space is continuous for all tubes secured to the liner and
the tube sheet collar.

US Pat. No. 9,612,049

SENSOR MOUNT FOR A MOBILE REFRIGERATION SYSTEM

Carrier Corporation, Jup...

1. A refrigeration system for a mobile unit, comprising:
a refrigeration loop including a compressor, a condenser, a refrigerant regulator and an evaporator;
a longitudinally extending air duct that directs air from an air inlet to the evaporator, which air duct is defined by first
and second panels;

a sensor disposed in the air duct; and
a shock absorption unit that mounts the sensor to and provides a limited thermal conduction path between the sensor and the
first panel, wherein the shock absorption unit is exposed to flow of the air through the air duct, and wherein the shock absorption
unit comprises a spring element which laterally anchors the sensor to the first panel;

wherein the spring element comprises a plurality of coils, and the coils are entirely disposed between the first panel and
the sensor so as to measure air temperature during normal operation of the spring element.

US Pat. No. 9,551,511

EJECTOR HAVING NOZZLES AND DIFFUSERS IMPARTING TANGENTIAL VELOCITIES ON FLUID FLOW

Carrier Corporation, Jup...

15. An ejector (38; 202; 300; 400; 600; 700; 800) for receiving a motive flow and a suction flow and discharging a combined flow, the ejector comprising:
a motive flow inlet (40);

a suction flow inlet (42);

an outlet (44);

a suction flow flowpath extending from the suction flow inlet; and
a motive flow flowpath extending from the motive flow inlet to join the suction flow flowpath and form a combined flowpath
exiting the outlet,
wherein the ejector comprises:
a plurality of motive flow nozzles (100; 302; 402; 602; 702; 802) along the motive flow flowpath, the motive flow nozzles oriented to impart a tangential velocity component to the motive
flow;

a downstream end centerbody (134) having a downstream divergent outboard surface (132; 430; 630) for radially outwardly diverting the combined flow; and

a plurality of diffusers (130; 304; 404; 604; 704; 804) along the combined flowpath and oriented to recover the tangential velocity from the combined flow.

US Pat. No. 9,494,352

REFRIGERANT SYSTEM WITH CONTROL TO ADDRESS FLOODED COMPRESSOR OPERATION

Carrier Corporation, Far...

1. A refrigerant system comprising:
a compressor, a condenser downstream of said compressor, an expansion device downstream of said condenser, and an evaporator
downstream of said expansion device, and a refrigerant circulating from said compressor to said condenser, through said expansion
device and said evaporator and then returning to said compressor;

a control controlling a system component to reduce the amount of liquid refrigerant to pass through the compressor;
said system component is a suction modulation valve;
said control throttles said suction modulation valve toward a closed position to reduce mass flow when conditions indicate
there might be an undesirable amount of liquid refrigerant to pass through the compressor; and

a discharge valve is positioned intermediate said condenser and said compressor, and said discharge valve is throttled in
combination with said control controlling said suction modulation valve.

US Pat. No. 9,200,847

METHOD AND SYSTEM FOR VARIABLE SPEED BLOWER CONTROL

CARRIER CORPORATION, Far...

1. A system for handling air comprising:
a blower;
a blower motor; and
a controller for controlling the blower motor, the controller:
applying control signals to the blower motor;
determining that airflow through a portion of the furnace meets a reference airflow;
determining a reference control signal at which the reference airflow is present;
receiving a requested airflow;
computing a requested control signal in response to the reference airflow, the reference control signal and the requested
airflow; and

using the requested control signal to control the blower motor;
wherein determining that airflow through the portion of the furnace meets the reference airflow includes monitoring a pressure
switch to determine whether the reference airflow is present, the pressure switch changing states when the reference airflow
is present through the portion of the furnace.

US Pat. No. 10,648,718

AIR CONDITIONING APPARATUS WITH COMPRESSOR DISCHARGE PRESSURE SENSING

Toshiba Carrier Corporati...

1. An air conditioning apparatus comprising:one or a plurality of indoor units each having an indoor heat exchanger, and an indoor expansion valve in which a degree of opening is variable;
an outdoor unit having an outdoor heat exchanger, a four-way valve, a compressor, a discharge pressure sensor configured to detect a pressure of a refrigerant discharged from the compressor, and a temperature sensor configured to detect a temperature of outside air; and
a controller configured to control each indoor expansion valve, the four-way valve, and the compressor, the controller configured to store a total value of a period during which a temperature detected by the temperature sensor is less than a predetermined temperature threshold value after a start of a heating operation, the controller configured to determine whether or not the total value of the period is equal to or greater than a predetermined reference time, the controller configured to determine whether or not a discharge pressure detected by the discharge pressure sensor is equal to or higher than a predetermined pressure threshold value,
wherein the one or plurality of indoor units are connected to the outdoor unit,
wherein the controller is configured to start a defrosting operation when the total value of the period becomes equal to or greater than the reference time,
wherein the controller is configured such that when the controller determines that the discharge pressure is equal to or higher than the pressure threshold value while the heating operation is performed, the controller sets a maximum time for continuing the defrosting operation to a first maximum time, and
wherein the controller is configured such that when the controller determines that the discharge pressure is less than the pressure threshold value while the heating operation is performed, the controller sets the maximum time for continuing the defrosting operation to a second maximum time shorter than the first maximum time.

US Pat. No. 10,072,884

DEFROST OPERATIONS AND APPARATUS FOR A TRANSPORT REFRIGERATION SYSTEM

CARRIER CORPORATION, Far...

9. A method for operating a defrost mode of a transport refrigerant vapor compression system including a refrigerant circuit including, in a serial arrangement, a refrigerant compression device, a refrigerant heat rejection heat exchanger, a secondary expansion device, an economizer device, a primary expansion device, a refrigerant heat absorption heat exchanger and a suction modulation valve between the refrigerant heat absorption heat exchanger and a suction port of the refrigerant compression device, the method comprising:entering a defrost mode;
upon entering the defrost mode, comparing a heat absorption heat exchanger pressure to a first predetermined limit, where the first predetermined limit is less than a pressure release valve prescribed pressure, wherein when the heat absorption heat exchanger pressure is greater than the first predetermined limit reducing the heat absorption heat exchanger pressure and exiting the defrost mode;
wherein when the heat absorption heat exchanger pressure is less than the first predetermined limit, closing the suction modulation valve and partially opening the primary expansion device and opening the secondary expansion device to an open position;
after closing the suction modulation valve, initiating a defrost operation for the transport refrigerant vapor compression system by energizing heaters operatively coupled to the heat absorption heat exchanger operable to defrost the heat absorption heat exchanger;
during the defrost operation, comparing the heat absorption heat exchanger pressure to the first predetermined limit;
during the defrost operation, in response to the heat absorption heat exchanger pressure being less than the first predetermined limit, performing at least one operation to determine if the defrost operation should be exited; and
during the defrost operation, in response to the heat absorption heat exchanger pressure being greater than the first predetermined limit, reducing the heat absorption heat exchanger pressure and exiting the defrost mode.

US Pat. No. 9,890,811

MULTIPLE-AXIS MAGNETIC BEARING AND CONTROL OF THE MAGNETIC BEARING WITH ACTIVE SWITCH TOPOLOGIES

CARRIER CORPORATION, Far...

10. A magnetic bearing system comprising:
a first active magnetic bearing (AMB) including a first group of electromagnetic actuators coupled to a shaft;
a second active magnetic bearing (AMB) including a second group of electromagnetic actuators coupled to the shaft;
a position sensor to generate information indicative of a position of the rotor shaft;
a controller including a three-phase controlling circuit having a plurality of active current switches for controlling each
of the first AMB and the second AMB;

wherein a first electromagnetic actuator of the first AMB is electrically coupled to a second electromagnetic actuator of
the second AMB at a first phase leg, the first electromagnetic actuator coupled to a second phase leg and the second electromagnetic
actuator coupled to a third phase leg of the controlling circuit;

wherein a third electromagnetic actuator of the first AMB is electrically coupled to a fourth electromagnetic actuator of
the second AMB at a fourth phase leg, the third electromagnetic actuator coupled to a fifth phase leg and the fourth electromagnetic
actuator coupled to a sixth phase leg of the controlling circuit; and

wherein the controller is operable to receive the information indicative of the position of the rotor shaft and supply an
adjustment signal to the magnetic bearing system to adjust the position of the shaft;

wherein the first group of electromagnetic actuators controls a position of the rotor shaft at a first location along a longitudinal
length of the rotor shaft and the second group of electromagnetic actuators controls a position of the rotor shaft at a second
location along the longitudinal length of the rotor shaft, the second location different from the first location.

US Pat. No. 9,888,789

REFRIGERATED SALES CABINET

CARRIER CORPORATION, Far...

1. A refrigerated sales cabinet comprising:
a goods presentation and air circulation space for supporting refrigerated goods to be sold;
an evaporator for cooling air flowing through the goods presentation and air circulation space; and
a drain conduit connecting a bottom part of the goods presentation and air circulation space with a position outside of the
goods presentation and air circulation space, said drain conduit being configured for draining condensed water forming within
the goods presentation and air circulation space to a position outside of the goods presentation and air circulation space;
wherein the drain conduit comprises an at least partially permeable container arranged along the flow path of the drain conduit,
the container being filled with granulate material that is non-absorbent to water, and the granulate material being piled
up within the container so as to occupy the diameter of the flow path such that air is hindered from passing through the drain
conduit from outside of the goods presentation and air circulation space into the goods presentation and air circulation space
and such that water still can pass through the drain conduit from the goods presentation and air circulation space to the
position outside of the goods presentation and air circulation space.

US Pat. No. 9,777,964

MICRO-PORT SHELL AND TUBE HEAT EXCHANGER

CARRIER CORPORATION, Far...

1. A heat exchanger, comprising:
a shell defining an interior;
manifolds coupled to the shell by which a first fluid is communicated with the interior; and
first and second tubular bodies to transmit a second fluid through the interior whereby heat transfer occurs between the first
and second fluids, wherein each of the first and second tubular bodies:

extends longitudinally through the interior of the heat exchanger,
has a non-circular cross-section, and
is formed to define discrete microchannels extending longitudinally through the tubular body through which the second fluid
is transmitted;

wherein the spacing between the discrete microchannels disposed in the first tubular body is different from the spacing between
the discrete microchannels disposed in the second tubular body.

US Pat. No. 9,766,009

METHOD AND SYSTEM FOR TRANSPORT CONTAINER REFRIGERATION CONTROL

CARRIER CORPORATION, Far...

1. A method of refrigeration control through a refrigeration system of a refrigerated transport container, comprising:
performing a defrost cycle on the refrigeration system by activating a heat source; and
restarting the refrigeration system after the defrost cycle has completed, wherein restarting the refrigeration system includes
performing a liquid slugging avoidance process including:

initiating a compressor of the refrigeration system at a speed;
opening a pressure equalization valve in parallel with the compressor in response to the initiating;
opening a liquid valve in series between a condenser and an evaporator after a predetermined amount of time has elapsed from
opening of the pressure equalization valve, the liquid valve and the pressure equalization valve both being open at the same
time; and

closing the pressure equalization valve after a period of time.

US Pat. No. 9,719,713

REFRIGERATED CARGO CONTAINER, METHOD FOR COOLING A CARGO, METHOD FOR HEATING A CARGO

CARRIER CORPORATION, Far...

1. A method of cooling a cargo in a cargo container comprising:
flowing a refrigerant through a plurality of refrigerant tubes disposed in a roof cavity of the cargo container, the roof
cavity defined by an outer roof panel and an inner roof panel spaced from the outer roof panel;

transferring thermal energy from container air in the container to the refrigerant thereby cooling the container air;
circulating the container air via natural convection toward the cargo disposed in an interior of the cargo container defined
between the inner roof panel and a floor of the cargo container thereby cooling the cargo via thermal energy transfer to the
container air;

recirculating the container air toward the plurality of refrigerant tubes; and
directing condensate toward a selected location in the cargo container; via:
disposing the plurality of refrigerant tubes at an angle nonparallel to horizontal; and
flowing the condensate toward the selected location via gravity.

US Pat. No. 9,574,982

METHOD OF MEASURING CONCENTRATIONS OF GAS MIXTURES

CARRIER CORPORATION, Far...

1. A method of measuring the concentration of an identified subject compound in a gaseous mixture comprising the subject compound
and at least one other identified compound or compounds, comprising:
(a) exposing a liquid comprising an ionic liquid and/or a low vapor-pressure organic solvent to the gaseous mixture at a first
temperature and a first pressure until the liquid and the gaseous mixture are in equilibrium, thereby forming a liquid solution
comprising the ionic liquid and/or low vapor pressure organic solvent, the subject compound, and the at least one other compound
or compounds;

(b) isolating the liquid solution from the gaseous mixture;
(c) determining a predicted vapor pressure function of the liquid solution at a second temperature as a function of the concentration
of each of the subject compound and the at least one other identified compound or compounds, wherein the predicted vapor pressure
of the liquid solution at a given molar concentration of each of the compounds equals the sum of the vapor pressure of each
compound multiplied by its given mole percentage based on total number of moles of the subject compound and the at least one
other identified compound or compounds in solution in the liquid;

(d) measuring the vapor pressure of the liquid solution at the second temperature;
(e) comparing the measured vapor pressure of the liquid solution at the second temperature with predicted vapor pressure function
of the liquid solution at the second temperature and identifying all molar concentration profiles of the identified subject
compound and the at least one other identified compound or compounds in the liquid for which the measured vapor pressure equals
the predicted vapor pressure;

(f) if more than one molar concentration profile of the identified subject compound and the at least one other identified
compound or compounds in the liquid provides a predicted vapor pressure that equals the measured vapor pressure at the second
temperature, repeating steps (c)-(e) at different temperatures until a single molar concentration profile provides a predicted
vapor pressure that matches the measured vapor pressure at each of the second and additional temperatures;

(g) converting the single concentration profile resulting from step (e) or step (f) by the solubility in the liquid at the
first temperature of each of the identified subject compound and the at least one other identified compound or compounds,
respectively to a concentration profile of the identified subject compound and the at least one other identified compound
or compounds in the liquid resulting from step (a);

(h) calculating a partial vapor pressure for each of the identified subject compound and the at least one other identified
compound or compounds in the gaseous mixture by dividing the mole percentage of each of the identified subject compound and
the at least one other identified compound or compounds in; and

(i) calculating a mole percent of the identified subject compound in the gaseous mixture by dividing the partial vapor pressure
of the identified subject compound from step (h) by the sum of the partial vapor pressures for each of the identified subject
compound and the at least one other identified compound or compounds from step (h).

US Pat. No. 9,562,722

MANIFOLD ASSEMBLY FOR DISTRIBUTING A FLUID TO A HEAT EXCHANGER

Carrier Corporation, Jup...

16. A heat exchanger assembly, comprising:
a first manifold assembly comprising:
a plurality of channels including one or more first channels and one or more second channels, which first channels each have
a first flow profile and a manifold end with a first cross-sectional geometry, and which second channels each have a second
flow profile and a manifold end with a second cross-sectional geometry, wherein the first cross-sectional geometry is different
from the second cross-sectional geometry; and

a manifold having an inner cavity, an inlet port, one or more first channel ports each configured to mate with the manifold
end of a first channel, and one or more second channel ports each configured to mate with the manifold end of a second channel;

wherein a geometry of one of the first channel ports is different than a geometry of one of the second channel ports;
a second manifold assembly; and
a heat exchanger fluidly coupled between the first manifold assembly and the second manifold assembly, the heat exchanger
comprising a plurality of conduits, wherein each of the conduits is discrete from and fluidly coupled with a respective one
of the plurality of channels.

US Pat. No. 9,498,783

PASSIVELY ENERGIZED FIELD WIRE FOR ELECTRICALLY ENHANCED AIR FILTRATION SYSTEM

CARRIER CORPORATION, Far...

1. An air filtration system comprising:
a frame directing an airflow through the air filtration system;
a power supply;
an ionization array disposed in the frame across the airflow and connected to the power supply, the power supply providing
a first voltage to the ionization array;

a field wire disposed in the frame downstream from the ionization array, the field wire energized to a second voltage only
by an electrical energy discharge from the ionization array; and

a regulator module operably connected to the field wire to regulate the second voltage.

US Pat. No. 10,813,240

CONTROL BOX INCLUDING A WATER RESISTANT SEAL

CARRIER CORPORATION, Pal...

1. An enclosure for an outdoor air conditioning unit, comprising:a housing having an opening and a seal land adjacent to the opening, wherein the housing is a control box; and
a cover having a plurality of ribs and configured to be fastened to the housing to cover the opening such that the plurality of ribs are sealingly engaged against the seal land, wherein the cover includes an inverter box and a heat sink integrated with the inverter box, and the heat sink extends into an interior of the enclosure when the cover is fastened to the housing;
wherein the housing has first fastener holes and the cover has second fastener holes corresponding to the first fastener holes, and at least one of the fastener holes is between two of the ribs; and
wherein the housing and seal land are constructed primarily of a first material, and the cover and plurality of ribs are constructed primarily of a second material, and wherein the first material is a metal, and the second material is a plastic or a resin.

US Pat. No. 10,667,220

SYSTEM AND METHOD FOR ADJUSTING POWER IN A WIRELESS SENSOR

CARRIER CORPORATION, Pal...

1. A system for RF transmission power adjustment in a wireless sensor, comprising:a main control unit positioned within an environment; and
at least one sensor positioned within the environment and constructed and arranged to monitor occurrences within the environment, wherein the at least one sensor is in wireless communication with the main control unit, wherein the at least one sensor sends signals to the main control unit indicative of the occurrences, the signals having communication parameters affected by an environmental condition of the environment, wherein the main control unit regulates a RF transmission power of the at least one sensor based on at least one of an aggregate of the communication parameters of the signal or the environmental condition;
wherein data related to the environment and the communication parameters is utilized to determine an algorithm to regulate the RF transmission power of the at least one sensor.

US Pat. No. 10,533,785

THERMOELECTRIC PURGE UNIT

Carrier Corporation, Pal...

1. A purge unit comprising:a vessel having:
an inlet;
a return port, a first path providing fluid communication from the inlet to the return port; and
a purge port, a second path providing fluid communication from the inlet to the purge port;
one or more thermoelectric units positioned to be in thermal communication with at least the first path; and
one or more additional thermoelectric units positioned to transfer the heat absorbed by the one or more thermoelectric units.

US Pat. No. 9,958,198

EMBEDDED CARGO SENSORS FOR A REFRIGERATION SYSTEM

CARRIER CORPORATION, Far...

11. A method for controlling a refrigeration system, comprising:providing a refrigeration unit associated with a volume containing a cargo, wherein the cargo has a thermal mass;
providing at least two temperatures associated with the thermal mass to a controller via at least two temperature sensors, wherein the first temperature sensor is disposed on an outside surface of the cargo, and wherein the second temperature sensor is embedded within the cargo;
modelling a thermal accumulation characteristic of the thermal mass based at least in part on the at least two temperatures via the controller; and
controlling the refrigeration unit based at least in part on the modeled thermal accumulation characteristic of the thermal mass and a temperature set point via the controller.

US Pat. No. 9,945,387

CONDENSER FAN SPEED CONTROL FOR AIR CONDITIONING SYSTEM EFFICIENCY OPTIMIZATION

CARRIER CORPORATION, Far...

19. A computer program product comprising a non-transitory computer readable storage medium containing computer code that, when executed by a computer, implements a method for fan speed control for a condenser fan in an air conditioning system, wherein the method comprises:determining a sensed refrigerant condition at an inlet of a compressor of the air conditioning system;
determining a sensed refrigerant condition at an outlet of the compressor;
determining a parabolic curve of a relationship between an air conditioning system performance metric and a speed of the condenser fan based on the determined inlet condition and the determined outlet condition;
identifying an optimum condenser fan speed based on a vertex of the parabolic curve; and
controlling the speed of the condenser fan to meet the optimum condenser fan speed.

US Pat. No. 9,816,739

REFRIGERATION SYSTEM AND REFRIGERATION METHOD PROVIDING HEAT RECOVERY

CARRIER CORPORATION, Far...

1. A refrigeration circuit circulating a refrigerant and comprising in the direction of flow of the refrigerant:
at least one compressor;
a pressure line attached to an outlet side of the at least one compressor;
at least one heat rejecting heat exchanger;
at least one expansion device; and
at least one evaporator;
the refrigeration circuit further comprising:
at least one heat recovery heat exchanger having a refrigeration circuit side and heat recovery system side and being configured
for transferring heat between the refrigeration circuit side and the heat recovery system side,

wherein the pressure line branches into a first pressure line portion leading to the at least one heat rejecting heat exchanger
and into a second pressure line portion leading to the refrigeration circuit side so that the refrigeration circuit side is
fluidly connected in parallel to the at least one heat rejecting heat exchanger for flowing circulating refrigerant through
the refrigeration circuit side; and

at least one regulation valve, which fluidly connects an outlet side of the refrigeration circuit side of the at least one
heat recovery heat exchanger with an inlet side of the at least one expansion device or with an inlet side of a receiver provided
upstream of the at least one expansion device and which is configured for regulating the flow of refrigerant flowing through
the refrigeration circuit side of the at least one heat recovery heat exchanger;

wherein the at least one regulation valve is switchable between
an open position, in which the regulation valve is completely open;
a closed position, in which the regulation valve is completely closed; and
at least one intermediate position, in which the regulation valve is partially open;
wherein the regulation valve is arranged downstream of the at least one heat recovery heat exchanger.

US Pat. No. 9,500,395

REFRIGERATION CIRCUIT, GAS-LIQUID SEPARATOR AND HEATING AND COOLING SYSTEM

CARRIER CORPORATION, Far...

1. A refrigeration circuit for circulating a refrigerant and comprising in the direction of flow of the refrigerant:
a compressor;
at least one condenser for rejecting heat to ambient air;
an expansion device; and
an evaporator;
the refrigeration circuit further comprising
a collecting container, the output of which being connected to the expansion device;
a heat rejecting heat exchanger for heat exchange of the refrigerant to a heat pump system, the output of the heat rejecting
heat exchanger being connected to the collecting container and

at least one valve connecting the heat rejecting heat exchanger or the at least one condenser to the output of the compressor
depending on the availability of cooling power at the heat rejecting heat exchanger; and

a gas-liquid-separator arranged in a line connecting an output of the heat rejecting heat exchanger to the collecting container,
the gas-liquid-separator separating the refrigerant coming from the heat rejecting heat exchanger into a gaseous phase refrigerant
portion and liquid phase refrigerant portion and having a gaseous phase output and a liquid phase output.

US Pat. No. 10,591,191

REFRIGERANT RISER FOR EVAPORATOR

CARRIER CORPORATION, Pal...

1. A heating, ventilation and air conditioning (HVAC) system comprising:a condenser flowing a flow of refrigerant therethrough;
an expansion device disposed downstream of the condenser such that the flow of refrigerant output from the condenser flows through the expansion device;
an output pipe disposed directly downstream of the expansion device such that the flow of refrigerant output from the expansion device directly flows into the output pipe;
a falling film evaporator in flow communication with the condenser and having an evaporator input pipe disposed vertically higher than the output pipe; and
a plurality of riser pipes, each riser pipe of the plurality of riser pipes including:
a first riser pipe end connected to and extending from the output pipe; and
a second riser pipe end opposite the first riser pipe end connected to and extending from the evaporator input pipe;
wherein the flow of refrigerant selectably flows through one or more selected riser pipes of the plurality of riser pipes from the output pipe to the input pipe as required by a load on the HVAC system.

US Pat. No. 10,591,607

TRACKING DEVICE

CARRIER CORPORATION, Pal...

1. A tracking device configured to track a shipment of cargo, comprising:a housing having a complementary first portion and second portion, the first portion and the second portion being pivotally coupled, a hole being formed in the first portion of the housing;
a seal having a central opening positioned within the housing, the seal being positioned adjacent the hole, the seal surrounding the hole with the central opening aligned with the hole;
a tracking unit arranged within the housing and configured to collect and transmit data;
a power unit having at least one power source arranged within the housing, the power unit being configured to supply power to the tracking unit;
a circuit board connecting the power unit and the tracking unit, the circuit board includes a metal tab arranged adjacent a conductive interface; and
a portion of a pull tab formed from a thin, non-conductive material arranged between the metal tab and the conductive interface, a distal end of the pull tab extending through the central opening of the seal and the hole formed in the first portion of the housing, wherein the tracking device is configured to transition from an inactive state to a fully active state upon removal of the pull tab;
wherein the tracking device includes a sensor coupled to the tracking unit;
wherein the sensor is positioned within a central opening of a second seal arranged within the housing adjacent another hole formed in the housing, the second seal being configured to isolate the sensor from heat generated within the tracking device and to trap moisture within the central opening thereof.

US Pat. No. 10,254,025

REFRIGERATING SYSTEM AND METHOD FOR CONTROLLING THE SAME

Carrier Corporation, Jup...

1. Refrigerating system having a refrigerant circuit comprising:at least one compressor, a condenser/gascooler, an intermediate pressure container, at least one evaporator and a respective expansion device before said at least one evaporator, and refrigerant pipes connecting said elements and circulating a refrigerant therethrough;
a high pressure regulating device between the condenser/gascooler and the intermediate pressure container, expanding the refrigerant from a high pressure level to an intermediate pressure level;
an intermediate pressure sensor sensing the intermediate pressure level; and
a control unit controlling the high pressure regulating device;
wherein the control unit is configured to set a maximum flow value FMax as a limit for a refrigerant flow through the high pressure regulating device,
wherein the control unit is configured to compare the sensed intermediate pressure level to a fixed predetermined threshold value PIntTh, wherein the predetermined threshold value PIntTh is between a fixed reference intermediate pressure value PIntRef, being the desired operating point of the intermediate pressure level, and a maximum allowable intermediate pressure value PIntMax,
wherein the control unit is configured, as a function of said comparison of the sensed intermediate pressure level to the predetermined threshold value PIntTh, to set the maximum flow value FMax to less than a maximum flow value FTecMax that the high pressure regulating device technically supports,
wherein the refrigerant circuit additionally comprises a high pressure sensor sensing the high pressure level, wherein the control unit is configured to set a desired actual flow value for the refrigerant flow through the high pressure regulating device based on the sensed high pressure level, wherein the desired actual flow value does not exceed the maximum flow value FMax.

US Pat. No. 10,161,686

MICROCHANEL HEAT EXCHANGER EVAPORATOR

CARRIER CORPORATION, Far...

1. A heat exchanger including:a first tube bank including an inlet manifold and a plurality of first heat exchanger tubes arranged in spaced parallel relationship;
a second tube bank including an outlet manifold and a plurality of second heat exchanger tubes arranged in spaced parallel relationship;
an intermediate manifold configured to fluidly couple the first tube bank and the second tube bank;
a distributor insert arranged within the inlet manifold, the distributor insert including at least one first dividing element configured to define a plurality of first refrigerant chambers within the inlet manifold; and
at least one second dividing element arranged within the intermediate manifold and configured to define a plurality of second refrigerant chambers therein, wherein each second dividing element is arranged at a position substantially identical to a corresponding first dividing element such that each second refrigerant chamber is fluidly coupled to the same portion of first heat exchange tubes as a corresponding first refrigerant chamber; and
at least one subdividing element arranged within one of the plurality of second refrigerant chambers to subdivide the second refrigerant chamber into a plurality of subchambers, each subchamber being fluidly coupled to only a portion of the first heat exchange tubes connected to the second refrigerant chamber.

US Pat. No. 9,851,118

HVAC SYSTEM RELAY AUTOTUNING AND VERIFICATION

CARRIER CORPORATION, Far...

1. A method for autotuning a heating, ventilation and air conditioning (HVAC) system controller coupled to a controlled system,
the method comprising:
receiving a performance coefficient;
providing a step-input to the controlled system using an autotuner relay to measure an ultimate gain and an ultimate period
of the controlled system, the autotuner relay taking control from the HVAC system controller and providing a periodic step
function to the controlled system to determine limits of the controlled system, the ultimate gain and the ultimate period
determined from a limit cycle of the controlled system;

adjusting the ultimate gain and the ultimate period to account for a relay hysteresis;
applying a tuning rule to determine a proportional gain and an integral time from the ultimate gain and the ultimate period;
updating the HVAC system controller with the proportional gain and integral time; and
verifying the proportional gain and integral time, comprising:
setting a performance envelope at least partially determined by the performance coefficient;
applying a step-input to provoke a closed-loop response; and
comparing the closed loop response with the performance envelope to determine whether the closed-loop response is within the
performance envelope.

US Pat. No. 9,836,897

LOCKBOX ACCESS DEVICE AND METHOD WITH BIOMETRIC SECURITY DATA

Carrier Corporation, Jup...

1. A combination of a lockbox and a lockbox access apparatus, the combination comprising:
said lockbox, said lockbox having a lockable compartment for storing a key; and
said lockbox access apparatus comprising a wireless communications device having a stored program configured to:
cause the wireless communications device to communicate an access request to a lockbox; and
receive lockbox identifying information from the lockbox,wherein the wireless communication device is further configured to:
record biometric identifying information of an individual;
take entry from a user of non-biometric identifying information of the individual; and
transmit the lockbox identifying information, the biometric identifying information, and the non-biometric identifying information
to a remote destination.

US Pat. No. 9,796,432

HEAT DEFLECTOR FOR TRACTOR-TRAILER REFRIGERATION SYSTEM

CARRIER CORPORATION, Far...

1. A transport refrigeration system comprising:
a tractor vehicle having an engine;
a trailer operably coupled to the tractor vehicle;
a transport refrigeration unit mounted to a front surface of the trailer adjacent the tractor vehicle; and
at least one shield mounted to the tractor or the trailer within an air gap defined between the tractor and the trailer, the
at least one shield being configured to divert discharged hot air from a flow path towards a condenser air inlet of the transport
refrigeration unit.

US Pat. No. 9,784,489

AIR CONDITIONING SYSTEM WITH DISTILLED WATER PRODUCTION FROM AIR

CARRIER CORPORATION, Far...

1. An air conditioning and water producing system comprising:
a heat pumping unit including a condenser and an evaporator;
a membrane contactor in thermal communication with the heat pumping unit configured such that a first brine flow is cooled
by the evaporator of the heat pumping unit and diluted at the membrane contactor via absorption of moisture from a flow of
process air;

a distiller in thermal communication with the heat pumping unit and the membrane contactor such that a second brine flow is
flowed a first time through the distiller, heated by the condenser of the heat pumping unit and conveyed a second time through
the distiller, thermal interaction between the second brine flow conveyed a second time through the distiller and the first
time through the distiller extracts water from the second brine flow; and

a brine sump to which both the first brine flow and the second brine flow are conveyed.

US Pat. No. 9,765,987

SYSTEM FOR CONDENSATE ENERGY UTILIZATION

CARRIER CORPORATION, Far...

1. An air conditioning system comprising:
an inlet duct, supply duct, return duct and exhaust duct;
a heat exchanger for providing heat transfer between air from the inlet duct and air from the return duct;
a cooling coil position in the supply duct;
a pan for collecting condensate from the cooling coil;
a pump to pump condensate from the pan;
a sprayer coupled to the pump, the sprayer spraying condensate into an air path to increase efficiency of the air conditioning
system;

a second heat exchanger downstream of the first heat exchanger, the second heat exchanger for providing heat transfer between
air from the inlet duct and air from the return duct; and

a second sprayer spraying condensate into an air path to increase efficiency of the air conditioning system.

US Pat. No. 9,732,997

LOW LEAKAGE SEAL FOR LOW PRESSURE SYSTEM

CARRIER CORPORATION, Far...

1. A chiller refrigeration system comprising:
a first component having a first flange;
a second component having a second flange, the second flange being coaxially aligned and directly in contact with the first
flange, the second flange includes at least one groove; and

a sealing assembly arranged within said at least one groove including a first sealing mechanism and a second sealing mechanism,
the first sealing mechanism and the second sealing mechanism being separated by a distance such that a chamber is formed between
the first sealing mechanism and the second sealing mechanism, wherein a highly pressurized gas is supplied to the chamber
sealed by the first sealing mechanism and the second sealing mechanism, the highly pressurized gas being produced by operation
of the chiller refrigeration system.

US Pat. No. 9,671,127

MULTI-POISE CONDENSATE DRAIN PAN

Carrier Corporation, Jup...

1. A condensate drain pan comprising:
an inner front wall, an inner back wall and opposing inner side walls defining an inner perimeter;
at least one outer front wall, an outer back wall and opposing outer side walls defining an outer perimeter of the condensate
drain pan;

at least one drain pan panel, including a panel interior side and a panel exterior side, extending between the inner perimeter
and the outer perimeter to form at least one condensate channel;

at least one drain opening disposed in the at least one outer front wall; and
at least one coil conduit aperture disposed in the at least one outer front wall and configured to allow a conduit to be inserted
therethrough.

US Pat. No. 9,599,384

COMPRESSOR DISCHARGE CONTROL ON A TRANSPORT REFRIGERATION SYSTEM

CARRIER CORPORATION, Far...

1. A refrigerant vapor compression system comprising:
a compressor for compressing a refrigerant, the compressor having a suction port, a discharge port, and a compressor discharge
temperature sensor operatively coupled to the discharge port, the compressor discharge temperature sensor configured to provide
a compressor discharge temperature;

an air-cooled heat exchanger operatively coupled to the discharge port of the compressor;
an evaporator heat exchanger operatively coupled to the air-cooled heat exchanger and the suction port of the compressor,
and at least one of an evaporator outlet pressure sensor and an evaporator outlet temperature sensor operatively coupled to
the evaporator;

an expansion valve coupled to the inlet of the evaporator for at least partially vaporizing the refrigerant entering the evaporator;
an ambient air temperature sensor for monitoring an ambient air temperature;
a return air temperature sensor for monitoring a return air temperature; and
a controller operatively associated with the expansion valve, the controller configured to:
operate the expansion valve in a base mode wherein the expansion valve is controlled in response to a difference between actual
superheat and desired superheat of the evaporator; and

in response to the ambient air temperature, the return air temperature and the compressor discharge temperature meeting respective
limits, exiting the base mode to control the expansion valve in response to a difference between a set point and the compressor
discharge temperature instead of the difference between actual superheat and desired superheat of the evaporator.

US Pat. No. 9,573,440

ENGINE THROTTLE POSITION SENSOR CALIBRATION

CARRIER CORPORATION, Far...

1. A method for calibrating an engine throttle position sensor during operation of a refrigeration system powered by a fuel
fired engine, comprising:
monitoring, at a refrigeration unit controller, a current sensed engine operating RPM and a current sensed engine throttle
position signal;

the refrigeration unit controller gradually increasing a load imposed by the refrigeration system on the fuel-fired engine;
the refrigeration unit controller determining when the current engine operating RPM has drooped to a preset RPM calibration
limit;

the refrigeration unit controller defining the current sensed engine throttle position signal sensed coincident with the sensed
engine operating RPM when the engine operating RPM has drooped to the preset RPM calibration limit as a recalibrated engine
throttle position signal indicative of an engine throttle position of 100%; and

applying the recalibrated engine throttle position signal indicative of an engine throttle position of 100%.

US Pat. No. 9,200,811

SYSTEM AND METHOD FOR CONTROL OF HEAT SYSTEM OPERATION BY CHANGING A SWITCHING SET POINT OF OPERATION

CARRIER CORPORATION, Far...

1. A method for control of a heating system having a heat pump and supplemental heating, via a computer system, comprising:
at least periodically receiving data relating to current prices of at least one of electricity prices and prices of a source
of said supplemental heating, the source of said supplemental heating being oil or gas; and

automatically changing a switching set point in response to price changes in at least one of said electricity prices and prices
of said source of said supplemental heating, wherein said switching set point is a temperature at which said heating system
switches between operation of said heat pump and operation of said supplemental heating;

wherein said switching set point temperature is increased as said electricity prices increase relative to said prices of said
source of said supplemental heating, and wherein said switching set point temperature is decreased as said electricity prices
decrease relative to said prices of said source of said supplemental heating; and switching between operation of said heat
pump and operation of said supplemental heating based on said switching set point.