US Pat. No. 9,272,368

METHOD OF JOINING TWO COMPONENTS USING A WELDING PROCESS

Emerson Climate Technolog...

1. A method of joining two components (10, 12) of which at least one comprises a brass alloy using a laser welding process, in which method an intermediate part (16) which is formed from a material comprising at least one of the following alloys: CuSn4, CuSn6, CuSn8, CuSn10 and CuSn12,
is arranged between the components (10, 12) such that it is in contact with the components (10, 12) in marginal regions (18, 20), and is heated during the welding process using a laser beam (24) which is generated by a laser such that it enters into a connection having material continuity with the components (10, 12) in the marginal regions (18, 20).

US Pat. No. 9,249,802

COMPRESSOR

Emerson Climate Technolog...

13. A compressor comprising:
a first scroll member including a first end plate defining first and second sides opposite one another, a primary discharge
passage extending through said first and second sides, a secondary discharge passage extending through said first and second
sides and located radially outward from said primary discharge passage, a first spiral wrap extending from said first side,
an annular recess in said second side and an aperture extending into said annular recess;

a second scroll member including a second end plate having a second spiral wrap extending therefrom and meshingly engaged
with said first spiral wrap to form a series of compression pockets, said aperture being in communication with one of said
compression pockets;

a hub plate mounted to said first scroll member and including first and second sides opposite one another and having a hub
discharge passage extending therethrough and in fluid communication with said primary discharge passage, said first side of
said hub plate overlying said second side of said first end plate and including a valve guide extending axially toward said
first end plate and surrounding said hub discharge passage, said second side of said hub plate including an annular hub surrounding
said hub discharge passage and an annular rim surrounding said annular hub and defining an annular chamber therebetween, another
aperture extending through said hub plate and into said annular chamber and being in communication with said annular recess;
and

a valve member surrounding and receiving said valve guide for axial movement between open and closed positions, said valve
member closing said secondary discharge passage when in the closed position and axially spaced from said secondary discharge
passage when in the open position.

US Pat. No. 9,395,711

SYSTEM AND METHOD FOR MONITORING AND EVALUATING EQUIPMENT OPERATING PARAMETER MODIFICATIONS

Emerson Climate Technolog...

1. A system comprising:
a setpoint monitor in communication with a controller that operates at least one piece of equipment according to a plurality
of setpoint values, each setpoint value having an associated benchmark value, the setpoint monitor receiving a plurality of
setpoint modifications based on communication with the controller, each setpoint modification corresponding to a modification
of one of the plurality of setpoint values to a modified value different from the associated benchmark value; and

a first terminal in communication with the setpoint monitor, the first terminal displaying the plurality of setpoint modifications
to a user and receiving user input from the user to revert at least one setpoint modification of the plurality of setpoint
modifications from the modified value back to the associated benchmark value;

a second terminal in communication with the setpoint monitor, the second terminal outputting an indicator indicating for each
setpoint modification of the plurality of setpoint modifications that the setpoint modification has been rejected when the
user input to the first terminal is to revert the at least one setpoint modification back to the associated benchmark value,
and the second terminal receiving input indicating one of agreement or disagreement with the rejection of each setpoint modification;

wherein the setpoint monitor communicates with the controller to revert at least one setpoint value associated with the at
least one setpoint modification from the modified value back to the associated benchmark value for the at least one setpoint
value in response to the user input.

US Pat. No. 9,494,354

SYSTEM AND METHOD FOR CALCULATING PARAMETERS FOR A REFRIGERATION SYSTEM WITH A VARIABLE SPEED COMPRESSOR

Emerson Climate Technolog...

7. A method comprising:
receiving, using a control module, an evaporator signal corresponding to at least one of an evaporator pressure and an evaporator
temperature of an evaporator connected to a compressor and a condenser;

modulating a speed of said compressor with an inverter drive configured to modulate electric power delivered to said compressor;
receiving, using said control module, a compressor current and a compressor speed from said inverter drive;
calculating, using said control module, a condenser temperature based on said evaporator temperature, said compressor current,
and said compressor speed using mapping data that directly correlates compressor speeds, evaporator temperatures, and compressor
currents to condenser temperatures;

receiving, using said control module, a discharge temperature signal corresponding to a temperature of refrigerant exiting
said compressor;

calculating, using said control module, a discharge superheat temperature of said compressor based on said discharge temperature
signal and at least one of said calculated condenser temperature and a calculated condenser pressure; and

monitoring, using said control module, at least one of an overheat condition and a flood back condition of said compressor
based on said calculated discharge superheat temperature.

US Pat. No. 9,157,439

UNIVERSAL OIL FITTING

Emerson Climate Technolog...

15. A system comprising:
a first compressor having a first shell, a first compression mechanism, and a first oil sump;
a second compressor having a second shell, a second compression mechanism, and a second oil sump;
an oil conduit communicating oil between said first and second oil sumps; and
first and second fittings fluidly coupling said oil conduit to said first and second oil sumps, respectively, each of said
first and second fittings including a body and an orifice extending longitudinally therethrough, said body having a first
end, a second end, a first outer portion and a second outer portion, said first outer portion having external threads and
extending longitudinally between said first end and said second outer portion, said orifice including a first portion having
a first inner diameter and a second portion having a threaded second inner diameter, said first portion extending longitudinally
between said first end of said outer body and said second portion,

wherein said first and second fittings engage said first and second shells, respectively, said first and second shells including
first and second diameters, respectively, said first and second fittings including first and second lengths, respectively,
said first diameter being larger than said second diameter, and said second length being longer than said first length.

US Pat. No. 9,153,225

SOUND ENCLOSURE FOR ENCLOSING A COMPRESSOR ASSEMBLY

Emerson Climate Technolog...

1. A sound enclosure for enclosing a compressor assembly in an assembled state, the sound enclosure comprising:
at least one cover piece;
a shoe member including a partial circumferential wall projecting upright from a generally planar portion, wherein one of
the partial circumferential wall or the cover piece has a projected portion and the other of the partial circumferential wall
or the cover piece has a recessed portion, whereby in an assembled state the projected portion nests into the recessed portion;

a base including an outer contact area wherein the shoe member includes an outer perimeter, whereby in the assembled state
the outer contact area is in contact with the outer perimeter of the shoe member; and

a mounting assembly comprising:
a fastener; and
a first isolation member,
wherein the shoe member defines a first aperture and the base defines a second aperture, whereby in a mounted state the fastener
extends through the first isolation member and secures the sound enclosure to a mounting structure such that the first isolation
member is disposed between the mounting structure and the base and isolates the mounting structure from the base.

US Pat. No. 9,121,276

INJECTION MOLDED SEALS FOR COMPRESSORS

Emerson Climate Technolog...

1. A scroll compressor comprising:
a first non-orbiting scroll member having a baseplate defining a first side and a second side opposite to the first side,
wherein the first side comprises an involute portion extending from the baseplate and the second side comprises a cavity having
a floating seal assembly disposed therein, the floating seal assembly comprising a seal plate and a molded structural portion
overmolded onto a region of the seal plate, wherein the seal plate comprises a metal, the molded structural portion comprises
a thermoplastic polymer and at least one reinforcing or lubricating particle, the molded structural portion defines a first
contact surface; and

a second contact surface on a partition plate that interfaces with at least a region of the first contact surface of the molded
structural portion.

US Pat. No. 9,057,549

SYSTEM AND METHOD FOR MONITORING COMPRESSOR FLOODBACK

EMERSON CLIMATE TECHNOLOG...

1. A system comprising:
a compressor connected to an evaporator;
a suction sensor that outputs a suction temperature signal corresponding to a suction temperature of refrigerant entering
the compressor;

a control module connected to the suction sensor, said control module determining a saturated evaporator temperature based
on a speed of the compressor, calculating a suction superheat temperature based on the saturated evaporator temperature and
the suction temperature, monitoring a floodback condition of the compressor by comparing the suction superheat temperature
with a predetermined threshold, and, when the suction superheat temperature is less than or equal to the predetermined threshold,
increasing the speed of the compressor or decreasing an opening of an expansion valve associated with the compressor.

US Pat. No. 9,255,219

REFRIGERATION COMPRESSOR LUBRICANT

Emerson Climate Technolog...

1. A working fluid for a refrigeration system comprising a compressor, the working fluid comprising:
(i) an ester based lubricant comprising:
an ester mixture comprising (a) from 30 to 70% by weight of one or more first ester compounds, (b) from 30 to 70% by weight
of one or more second ester compounds, wherein the (a) one or more first ester compounds and the (b) one or more second ester
compounds of the ester mixture together form at least 50% by weight of the (i) ester based lubricant, and

(a) the one or more first ester compounds have a structure

wherein each of x, y, and z is independently an integer 2 to 8; and R7, R8, and R9 are each independently selected from the group consisting of: straight-chain and branched alkyl, alkenyl, cycloalkyl, aryl,
alkylaryl, arylalkyl, alkylcycloalkyl, cycloalkylalkyl, arylcycloalkyl, cycloalkylaryl, alkylcycloalkylaryl, alkylarylcycloalkyl,
arylcycloalkylalkyl, arylalkylcycloalkyl, cycloalkylalkylaryl, and cycloalkylarylalkyl groups having 1 to 17 carbon atoms
that may be substituted or unsubstituted;

(b) the one or more second ester compounds have a structure

wherein m is is an integer 1 to 10; and R10 and R13 are each independently selected from the group consisting of: straight-chain and branched alkyl, alkenyl, cycloalkyl, aryl,
alkylaryl, arylalkyl, alkylcycloalkyl, cycloalkylalkyl, arylcycloalkyl, cycloalkylaryl, alkylcycloalkylaryl, alkylarylcycloalkyl,
arylcycloalkylalkyl, arylalkylcycloalkyl, cycloalkylalkylaryl, and cycloalkylarylalkyl groups having 1 to 17 carbon atoms
that may be substituted or unsubstituted;

(c) an additive selected from the group consisting of: diaryl sulfides, arylalkyl sulfides, dialkyl sulfides, diaryl disulfides,
arylalkyl disulfides, dialkyl disulfides, diaryl polysulfides, arylalkyl polysulfides, dialkyl polysulfides, dithiocarbamates,
derivatives of 2-mercaptobenzothiazole, derivatives of 2,5-dimercapto-1,3,4-thiadiazole, and combinations thereof; and

(ii) a refrigerant selected from the group consisting of: C3-C8 hydrocarbons, trichlorofluoromethane (CFC-11), dichlorodifluoromethane (CFC-12), saturated hydrofluorocarbons, difluoromethane
(HFC-32), 1,1,2,2-tetrafluoroethane (HFC-134), difluoroethane (HFC-152a), fluoroethane (HFC-161), R410A (a near-azeotropic
mixture of difluoromethane (HFC-32) and pentafluoroethane (HFC-125)), 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea), 1,1,1,2,3,3-hexafluoropropane
(HFC-236ea), 1,1,1,3,3,3-hexafluoropropane (HFC-236fa), 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1,1,1,3,3-pentafluorobutane
(HFC-365mfc), hydrofluoroolefins, dimethyl ether, carbon dioxide, bis(trifluoromethyl)sulfide, and trifluoroiodomethane and
combinations thereof, wherein the working fluid has a minimum miscibility temperature of about ?55° C. or lower.

US Pat. No. 9,181,939

COMPRESSOR CRANKCASE HEATING CONTROL SYSTEMS AND METHODS

Emerson Climate Technolog...

1. A crankcase heating control system for a heat pump system, the crankcase heating control system comprising:
a data receiving module that receives data indicative of a temperature of a compressor of the heat pump system, data indicative
of an ambient temperature, and data indicative of a current date and a current time;

a power control module that selectively applies power to a heater of a crankcase of the compressor and that selectively disables
the heater based on the temperature of the compressor, the ambient temperature, the current date, and the current time; and

a difference module that sets a temperature difference equal to the temperature of the compressor minus the ambient temperature,
wherein the power control module disables the heater of the crankcase when the temperature difference is greater than a predetermined
temperature.

US Pat. No. 9,130,370

COMPRESSOR PROTECTION AND GRID FAULT DETECTION DEVICE

Emerson Climate Technolog...

1. A method comprising:
selectively operating at least one component of a system in an ON state, wherein the system receives power from an electrical
grid;

selectively detecting a fault event of the electrical grid in response to at least one of (i) an amount of current drawn by
the at least one component and (ii) a voltage of power received by the at least one component;

in response to detecting the fault event, switching the at least one component from the ON state to a second state, wherein
the at least one component consumes less power in the second state than in the ON state;

determining a first delay period according to a random process;
identifying an apparent conclusion of the fault event; and
in response to the apparent conclusion of the fault, waiting for the first delay period before switching the at least one
component back to the ON state.

US Pat. No. 9,239,054

SCROLL COMPRESSOR WITH OIL-COOLED MOTOR

Emerson Climate Technolog...

1. A compressor comprising:
a shell defining an internal cavity and an oil sump;
a compression mechanism disposed within said shell;
a motor coupled to a driveshaft for selectively powering said compression mechanism, said drive shaft includes a first end
disposed proximate to said oil sump and a second end disposed proximate to said compression mechanism, said drive shaft operable
to transport said oil from said oil sump to said second end;

a pumping mechanism in fluid-pumping communication with said oil sump; and
a first heat exchanger disposed external from said shell and in fluid communication with said pumping mechanism, said first
heat exchanger cooling said oil prior to returning said cooled oil to said internal cavity;

a bearing housing supporting said driveshaft and defining a counterweight cavity; and
a counterweight fixed to said driveshaft proximate to said second end, said counterweight is rotatably received within said
counterweight cavity,

wherein said counterweight cooperates with said counterweight cavity to pump oil received from said oil sump to direct said
oil into said first heat exchanger,

wherein said bearing housing includes a lubricant inlet and a lubricant outlet extending radially outward from said counterweight
cavity, said first heat exchanger receiving lubricant from said lubricant outlet and providing cooled lubricant to said lubricant
inlet.

US Pat. No. 9,240,749

MOTOR DRIVE CONTROL USING PULSE-WIDTH MODULATION PULSE SKIPPING

Emerson Climate Technolog...

1. A control system for a motor, the control system comprising:
a pulse-width modulation module that generates three duty cycle values based respectively on three voltage requests and based
on a bus voltage;

a mode determination module that selectively enables a pulse skipping mode based on a speed of the motor;
a pulse skip determination module that, in response to the pulse skipping mode being enabled, serially generates pulse skipping
numbers, wherein the pulse skipping numbers are selected randomly from a group consisting of zero, one, and two;

a duty cycle adjustment module that, for each switching period of a plurality of switching periods, selectively sets the three
duty cycle values to a zero value in response to a corresponding one of the pulse skipping numbers being nonzero;

a pulse module that, for each of the switching periods, generates three pulse waveforms in response to the three duty cycle
values as modified by the duty cycle adjustment module; and

an inverter power module that controls three phases of the motor based on the three pulse waveforms, respectively.

US Pat. No. 9,562,710

DIAGNOSTICS FOR VARIABLE-CAPACITY COMPRESSOR CONTROL SYSTEMS AND METHODS

Emerson Climate Technolog...

1. A system comprising:
a variable-capacity compressor operable at a first capacity and at a second capacity that is higher than the first capacity;
an outdoor-air-temperature sensor that generates outdoor-air-temperature data corresponding to an outdoor-air temperature;
a control module that receives a demand signal from a thermostat, that determines whether communication with the outdoor-air-temperature
sensor has been interrupted, and that operates the variable-capacity compressor in a first mode in response to determining
that communication with the outdoor-air-temperature sensor has not been interrupted and in a fault mode in response to determining
that at least one of communication with the outdoor-air-temperature sensor has been interrupted and the outdoor-air-temperature
indicated by the outdoor-air-temperature data is outside of a predetermined temperature range;

wherein the control module operates the variable-capacity compressor in the first mode by switching the variable-capacity
compressor between the first capacity and the second capacity based on the demand signal and the outdoor-air-temperature data
and operates the variable-capacity compressor in the fault mode by operating the variable-capacity compressor at at least
one of the first capacity and the second capacity based on the demand signal.

US Pat. No. 9,541,907

SYSTEM AND METHOD FOR CALIBRATING PARAMETERS FOR A REFRIGERATION SYSTEM WITH A VARIABLE SPEED COMPRESSOR

Emerson Climate Technolog...

1. A system comprising:
a compressor connected to a condenser and an evaporator;
a condenser sensor that outputs a condenser signal corresponding to at least one of a sensed condenser pressure and a sensed
condenser temperature;

an inverter drive that modulates a frequency of electric power delivered to said compressor to modulate a speed of said compressor;
a control module connected to said inverter drive that determines a measured condenser temperature based on said condenser
signal, that monitors electric power data and compressor speed data from said inverter drive, that calculates a derived condenser
temperature based on said monitored electric power data, said monitored compressor speed data, and compressor map data for
said compressor, said compressor map data functionally correlating electric power data and compressor speed data with condenser
temperature data for said compressor, and that compares said measured condenser temperature with said derived condenser temperature,
and selectively updates said compressor map data based on said comparison.

US Pat. No. 9,494,158

VARIABLE SPEED COMPRESSOR PROTECTION SYSTEM AND METHOD

Emerson Climate Technolog...

10. A method comprising:
receiving, with a control module, compressor power data of a compressor;
determining, with the control module, a saturated condenser temperature of a condenser connected to the compressor as a function
of the compressor power data and a speed of the compressor;

receiving, with the control module, a discharge line temperature signal that corresponds to a discharge line temperature of
refrigerant leaving the compressor;

calculating, with the control module, a discharge superheat temperature based on the saturated condenser temperature and the
discharge line temperature;

monitoring, with the control module, a flood back condition of the compressor by comparing the discharge superheat temperature
with a predetermined threshold; and

increasing the speed of the compressor or decreasing an opening of an expansion valve, with the control module, when the discharge
superheat temperature is less than or equal to the predetermined threshold.

US Pat. No. 9,407,194

SYSTEM AND METHOD FOR PROTECTION OF A COMPRESSOR WITH AN ALUMINUM WINDING MOTOR

Emerson Climate Technolog...

1. A compressor comprising:
a single-phase electric motor driving a compression mechanism, the electric motor having a rotor and a stator, the stator
being comprised of aluminum windings; and

a protector device, attached to the stator, configured to disconnect the electric motor from a power supply when an input
voltage of the power supply to the electric motor is less than a threshold voltage value set at a level between a minimum
run voltage and an overheat voltage of the compressor, the overheat voltage corresponding to an overheat temperature of the
electric motor;

wherein the threshold voltage value is set at a level that is between the minimum run voltage and the overheat voltage and
wherein the protector device includes a tolerance level such that the threshold voltage minus the tolerance level is greater
than the overheat voltage and such that the threshold voltage plus the tolerance level is less than the minimum run voltage.

US Pat. No. 9,310,439

COMPRESSOR HAVING A CONTROL AND DIAGNOSTIC MODULE

Emerson Climate Technolog...

1. An apparatus comprising:
a voltage sensor that measures a plurality of voltage values of alternating current power supplied to a capacitor, wherein
the capacitor is electrically coupled to a compressor;

a current sensor that measures a plurality of current values of the alternating current power; and
a controller configured to:
receive the plurality of voltage values;
receive the plurality of current values;
determine a first power factor value based on at least one of the plurality of voltage values and at least one of the plurality
of current values; and

selectively detect a first capacitor fault in response to concurrent determination that (i) the first power factor value is
less than a first power factor threshold and (ii) a first current value of the plurality of current values is greater than
a first current threshold, wherein the first capacitor fault indicates that a capacitance of the capacitor has degraded.

US Pat. No. 9,188,124

SCROLL COMPRESSOR WITH UNLOADER ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:
a shell;
a bearing housing supported within said shell;
an orbiting scroll supported on said bearing housing;
a non-orbiting scroll meshingly engaged with said orbiting scroll;
an unloader bushing assembly including:
a drive bushing having an outer surface engaged with said orbiting scroll and defining a longitudinally extending opening
extending from a first longitudinal bushing end to a second longitudinal bushing end, and

a spring including a longitudinally extending body disposed within said longitudinally extending opening of said drive bushing
and having first and second longitudinal spring ends, said first longitudinal spring end including a first tab extending laterally
from said body and overlapping said first longitudinal bushing end, said second longitudinal spring end including a second
tab extending laterally from said body and overlapping said second longitudinal bushing end to secure said spring within said
drive bushing; and

a drive shaft extending through said bearing housing and including an eccentric crank pin disposed within said longitudinally
extending opening of said drive bushing and engaged with said spring.

US Pat. No. 9,435,451

ELECTRONIC EXPANSION VALVE

Emerson Climate Technolog...

1. An electronic expansion valve, comprising:
a valve component for regulating flow rate of fluid flowing through the electronic expansion valve, wherein the valve component
comprises a valve body, a valve seat arranged in the valve body, a valve needle able to open and close the valve seat, an
actuation mechanism for driving the valve needle to move axially, and a drive mechanism for providing the actuation mechanism
with motive power, and wherein the actuation mechanism comprises a spindle which is movable axially; and

an electromagnetic retaining mechanism for retaining the spindle, wherein when the electromagnetic retaining mechanism is
energized, the electromagnetic retaining mechanism retains the spindle in a first axial position at which the valve needle
is allowed to adjust the opening degree of the valve seat, and when the electromagnetic retaining mechanism is de-energized,
the electromagnetic retaining mechanism releases the spindle to a second axial position at which the valve needle closes the
valve seat,

wherein the electromagnetic retaining mechanism comprises an electromagnetic coil, a fixed iron stationary relative to the
electromagnetic coil, and a movable iron movable relative to the fixed iron,

wherein the movable iron is connected to a first end of the spindle in such a manner that the movable iron is rotatable but
cannot move axially relative to the spindle, and

wherein a rolling bearing is provided between the movable iron and the first end of the spindle, and comprises an inner race
fitted with the first end of the spindle and an outer race fitted with the movable iron.

US Pat. No. 9,140,728

COMPRESSOR SENSOR MODULE

Emerson Climate Technolog...

1. A sensor module for a compressor having an electric motor connected to a power supply that includes first, second, and
third phases, the sensor module comprising:
a first input connected to a first voltage sensor that generates a first voltage signal corresponding to a voltage of said
first phase of said power supply;

a second input connected to a second voltage sensor that generates a second voltage signal corresponding to a voltage of said
second phase of said power supply;

a third input connected to a third voltage sensor that generates a third voltage signal corresponding to a voltage of said
third phase of said power supply;

a fourth input connected to a current sensor that generates a current signal corresponding to a current of said first phase
of said power supply;

a processor connected to said first, second, third, and fourth inputs that calculates a first estimated current corresponding
to a current of said second phase of said power supply and a second estimated current corresponding to a current of said third
phase of said power supply based on voltage measurements from said first, second, and third inputs and current measurements
from said fourth input, and that calculates a power factor of said compressor based on said voltage measurements from said
first, second, and third inputs, said current measurements from said fourth input, and said first and second estimated currents.

US Pat. No. 9,121,407

COMPRESSOR DIAGNOSTIC AND PROTECTION SYSTEM AND METHOD

Emerson Climate Technolog...

1. A system comprising:
a compressor operable in a refrigeration circuit, said compressor having a shell and a motor disposed within said shell;
a first sensor detecting high-side data indicative of an operating condition of a high-pressure side of the refrigeration
circuit;

a second sensor detecting low-side data indicative of an operating condition of a low-pressure side of the refrigeration circuit;
and

processing circuitry receiving said high-side data and said low-side data from said first and second sensors and processing
said high-side data and low-side data to determine at least one of a low-side fault and a high-side fault, said processing
circuitry operating said compressor in one of a normal mode, a reduced-capacity mode, and a shutdown mode, said processing
circuitry operating said compressor in said normal mode in the absence of a low-side fault and a high-side fault, operating
said compressor in said reduced-capacity mode if a low-side fault or a high-side fault is determined, or operating said compressor
in said shutdown mode if said low-side fault or said high-side fault is identified by said processing circuitry as being a
severe low-side fault or a severe high-side fault.

US Pat. No. 9,502,873

COMPRESSOR AND ENCLOSURE ASSEMBLY FOR ELECTRICAL COMPONENTS

Emerson Climate Technolog...

1. An electrical component enclosure for a compressor, the electrical component enclosure comprising:
a base including an aperture extending through a surface facing a shell of the compressor; and
a lid engaging said base and cooperating with said base to define an electrical component housing;
wherein said aperture is operable to engage a fence that at least partially surrounds a terminal block of the compressor so
that said fence extends at least partially through and engages said aperture, so that said base is hanging from said fence,
said fence extends outward from said shell and surrounds tips of conductor pins of the terminal block, said tips of said conductor
pins are disposed outside of said shell; and

wherein said lid is spaced apart from said fence and said aperture such that a plug is able to be connected to and disconnected
from said conductor pins outside of said shell without moving said lid.

US Pat. No. 9,353,980

CLIMATE-CONTROL SYSTEM HAVING MULTIPLE COMPRESSORS

Emerson Climate Technolog...

1. A system comprising:
a first compressor;
a second compressor;
a first heat exchanger receiving working fluid discharged from said first and second compressors;
a second heat exchanger disposed downstream of said first heat exchanger and providing working fluid to said first compressor;
a third heat exchanger disposed between said first and second heat exchangers and including an inlet and first and second
outlets, said first outlet providing working fluid to said second heat exchanger, said second outlet providing working fluid
to said second compressor; and

a control module controlling operation of said second compressor between first and second modes based on a fluid pressure
within said third heat exchanger, wherein said first mode is a full capacity mode and said second mode is a reduced capacity
mode.

US Pat. No. 9,154,061

CONTROLLER AND METHOD FOR TRANSITIONING BETWEEN CONTROL ANGLES

Emerson Climate Technolog...

1. A control system for a motor, the control system comprising:
an angle determination module that generates an output rotor angle indicative of a desired angle of a rotor of the motor;
a control module that controls current supplied to the motor based on the output rotor angle;
an angle generation module that generates a commanded rotor angle in response to a commanded speed; and
an estimator module that determines an estimated rotor angle of the motor,
wherein the angle determination module:
upon startup of the motor, generates the output rotor angle based on the commanded rotor angle,
upon beginning of a transition period, generates the output rotor angle based on (i) the commanded rotor angle and (ii) the
estimated rotor angle, and

upon ending of the transition period, generates the output rotor angle based on the estimated rotor angle.

US Pat. No. 9,127,677

COMPRESSOR WITH CAPACITY MODULATION AND VARIABLE VOLUME RATIO

Emerson Climate Technolog...

1. A compressor comprising:
a shell assembly defining a suction pressure region and a discharge pressure region;
a first scroll member disposed within said shell assembly, said first scroll member including a first end plate defining a
first discharge port and a first modulation port and having a first spiral wrap extending from a first side thereof;

a second scroll member disposed within said shell assembly and including a second end plate defining a first variable volume
ratio port and having a second spiral wrap extending therefrom and meshingly engaged with said first spiral wrap to form a
suction pocket in fluid communication with said suction pressure region, intermediate compression pockets, and a discharge
pocket in fluid communication with said discharge pressure region, a first of said intermediate compression pockets being
in fluid communication with said first modulation port and a second of said intermediate compression pockets being in fluid
communication with said first variable volume ratio port;

a capacity modulation valve assembly located within said shell assembly and in fluid communication with said first modulation
port, said capacity modulation valve assembly displaceable between open and closed positions to selectively provide communication
between said first intermediate compression pocket and said suction pressure region via said first modulation port; and

a variable volume ratio valve assembly located within said shell assembly and in fluid communication with said first variable
volume ratio port, said variable volume ratio valve assembly displaceable between open and closed positions to selectively
provide communication between said second intermediate compression pocket and said discharge pressure region via said first
variable volume ratio port.

US Pat. No. 9,404,497

METHOD AND APPARATUS FOR SCROLL ALIGNMENT

Emerson Climate Technolog...

9. An assembly comprising:
a compressor bearing housing including:
a central body including a circumferential wall defining a bore adapted to receive a drive shaft; and
arms extending radially outward from said central body and defining circumferentially extending grooves including inner side
walls, outer side walls and base regions extending radially between said inner and outer side walls and defining fastener-receiving
apertures, wherein each of said circumferentially extending grooves is concentric to said circumferential wall; and

bushings received in said circumferentially extending grooves.

US Pat. No. 9,057,270

COMPRESSOR INCLUDING SUCTION BAFFLE

Emerson Climate Technolog...

15. A method comprising:
securing a bearing housing within a compressor shell, the bearing housing including a first leg engaged with the shell;
placing a suction baffle within the compressor shell adjacent to the first leg of the bearing housing, the suction baffle
including a main body, a first tab extending from a first lateral end of the main body and a second tab extending from the
first lateral end of said main body and spaced axially from the first tab to define a first recess between the first and second
tabs; and

displacing the suction baffle toward the bearing housing, the second tab engaging the first leg during the displacing and
the displacing forcing the second tab inward toward a second lateral end of the suction baffle and away from the first leg
of the bearing housing to locate the first leg of the bearing housing within the first recess and secure the suction baffle
axially relative to the bearing housing.

US Pat. No. 9,458,847

SCROLL COMPRESSOR HAVING BIASING SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:
a non-orbiting scroll including a first recess;
an orbiting scroll intermeshed with said non-orbiting scroll to form a plurality of compression pockets therebetween, said
orbiting scroll including first and second passages, said first passage communicating with one of said compression pockets,
said second passage communicating with said first recess; and

a bearing housing supporting said orbiting scroll and defining a second recess adjacent to said orbiting scroll, said second
recess communicating with said first and second passages.

US Pat. No. 9,267,501

COMPRESSOR INCLUDING BIASING PASSAGE LOCATED RELATIVE TO BYPASS PORTING

Emerson Climate Technolog...

1. A compressor comprising:
a first scroll member including a first end plate having a first spiral wrap extending therefrom;
a second scroll member supported relative to said first scroll member and including a second end plate having a second spiral
wrap extending therefrom and meshingly engaged with said first spiral wrap, said second end plate defining a discharge port,
bypass porting and a biasing passage, said biasing passage being in communication with said bypass porting during a portion
of a compression cycle of the compressor, said biasing passage located at least 270 degrees outward from said bypass porting
along said second spiral wrap; and

a seal engaged with said second scroll member, said seal and said second scroll member defining an axial biasing chamber in
communication with said biasing passage,

wherein said first and second spiral wraps initially define an intermediate pocket at a suction seal-off condition and progressively
compress fluid within said intermediate pocket during compressor operation until said intermediate pocket is in communication
with said discharge port, said intermediate pocket being in communication with said bypass porting no earlier than an angle
? of orbital displacement of said first scroll member relative to said second scroll member defined by:

where VR is a volume ratio of the compressor defined by said bypass porting, Ror is radius of first spiral wrap orbiting motion, Rg is a base circle radius defining an involute curve of said second spiral wrap and is defined by:
where T is thickness of said second spiral wrap, ? is an angle indicative of second spiral wrap length and is defined by:
where L is a maximum distance defined between inner radial surfaces of said second spiral wrap.

US Pat. No. 9,086,704

METHOD AND APPARATUS FOR MONITORING A REFRIGERATION-CYCLE SYSTEM

EMERSON CLIMATE TECHNOLOG...

1. A method for monitoring operation of a refrigerant-cycle system, comprising:
measuring a first pressure of refrigerant input to a compressor of the refrigerant-cycle system using a first pressure sensor;
measuring a first temperature of the refrigerant input to the compressor using a first temperature sensor;
measuring a second pressure of refrigerant output by the compressor and input to a condenser of the refrigerant-cycle system
using a second pressure sensor;

measuring a second temperature of refrigerant output by the condenser using a second temperature sensor;
measuring a third pressure of refrigerant output by the condenser using a third pressure sensor;
measuring current to the compressor using an electrical sensor; and
using a processing system, determining whether the refrigerant-cycle system is at least one of undercharged or overcharged
with refrigerant based on the first temperature, the first pressure, the second temperature, the second pressure, the third
pressure, and the current.

US Pat. No. 9,353,738

COMPRESSOR CRANKCASE HEATING CONTROL SYSTEMS AND METHODS

Emerson Climate Technolog...

1. A compressor crankcase heating control system for a heat pump system, the compressor crankcase heating control system comprising:
a first switching device that includes a first input connected to a first power line, that includes a second input connected
to a second power line, the first and second power lines for receiving a first voltage, and that selectively connects and
disconnects the first and second inputs to and from first and second nodes, respectively;

a second switching device that includes a third input that is connected to the first node, that includes a fourth input that
is connected to a third power line, and that includes a first output that is connected to a first end of a stator winding
of an electric motor of a compressor;

a third switching device that includes a fifth input that is connected to the second node, that includes a sixth input that
is connected to a fourth power line, the third and fourth power lines for receiving a second voltage that is less than the
first voltage, and that includes a second output that is connected to a second end of the stator winding of the electric motor
of the compressor; and

a compressor crankcase heating control module that controls the second and third switching devices.

US Pat. No. 9,310,094

PORTABLE METHOD AND APPARATUS FOR MONITORING REFRIGERANT-CYCLE SYSTEMS

Emerson Climate Technolog...

1. A monitoring system for monitoring the operation of a refrigerant-cycle system, the monitoring system comprising:
a monitoring unit including a processing system, a display, and one or more user input devices;
an airflow sensor provided to the monitoring unit and configured to generate airflow data;
a power sensor provided to the monitoring unit and configured to generate power data;
an ambient temperature sensor provided to the monitoring unit and configured to generate ambient air temperature data for
air provided to an evaporator of the refrigerant-cycle system; and

a network interface provided to the monitoring unit,
the monitoring unit using the network interface to query and receive performance information regarding an HVAC unit identified
by a model number,

the performance information comprising efficiency data specifying, for an input present ambient air temperature, a maximum
expected efficiency of the HVAC unit according to the input present ambient air temperature,

the monitoring unit determining a present maximum expected efficiency of the HVAC unit, wherein the present maximum expected
efficiency of the HVAC unit is determined using the input present ambient air temperature and using an input present ambient
humidity,

the monitoring unit using the airflow data, the power data, output air temperature data for air flowing from the evaporator,
and the ambient air temperature data to compute a present efficiency of the HVAC unit, and

the monitoring unit using the display to display a relationship between the present efficiency and the present maximum expected
efficiency.

US Pat. No. 9,331,420

COMPRESSOR HAVING TERMINAL PLUG ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:
a shell;
a compression mechanism supported within said shell;
a motor drivingly engaged with said compression mechanism; and
a terminal assembly including:
a cover secured relative to said shell;
a terminal block fixed to said shell and in electrical communication with said motor; and
a plug engaged with said terminal block and providing electrical communication between said terminal block and a wire, said
plug including a first side facing said terminal block and a second side opposite said first side and facing a wall of said
cover, said second side including a protrusion extending in a direction axially away from said first side toward said wall
and spaced a distance therefrom that is less than the axial extent of said protrusion.

US Pat. No. 9,322,405

ROTARY COMPRESSOR WITH VAPOR INJECTION SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:
a crankshaft including an eccentric portion;
a cylinder housing defining a cylindrical recess through which the crankshaft extends;
a rotor disposed within said cylindrical recess and engaging said eccentric portion of said crankshaft for movement with said
crankshaft relative to said cylindrical recess, said rotor and a circumferential surface of said cylindrical recess defining
a compression chamber therebetween;

a suction opening providing fluid at a first pressure to said cylindrical recess;
a discharge opening receiving compressed fluid from said compression chamber;
a fluid-injection opening providing fluid at a second pressure to said compression chamber, said second pressure being higher
than said first pressure, said fluid-injection opening and said discharge opening being at least partially aligned with each
other in a direction parallel to a rotational axis of said crankshaft; and

a valve movable relative to said cylindrical recess between a first position allowing fluid flow through said fluid-injection
opening and a second position restricting fluid flow through said fluid-injection opening.

US Pat. No. 9,187,682

REFRIGERATION COMPRESSOR LUBRICANT

Emerson Climate Technolog...

1. A lubricant and refrigerant combination, comprising:
a lubricant composition, comprising a mixture of:
(a) about 30 to about 70% by weight of the mixture of one or more first ester compounds having a structure
wherein each of R1, R2, R3, R4, R5, and R6 is independently H or methyl; each of a, b, c, x, y, and z is independently an integer and a+x, b+y, and c+z are each independently
an integer 1 to about 20; and R7, R8, and R9 are each independently selected from the group consisting of straight-chain and branched alkyl, and straight-chain and branched
alkenyl groups having 3 to about 8 carbon atoms that may be substituted or unsubstituted; and
(b) from about 30 to about 70% by weight of the mixture of one or more second ester compounds having a structure
wherein each of R11 and R12 is independently H or methyl; each of m and n is independently an integer and m+n is an integer 1 to about 10; and R10 and R13 are each independently selected from the group consisting of straight-chain and branched alkyl, and straight-chain and branched
alkenyl groups having 3 to about 8 carbon atoms that may be substituted or unsubstituted, wherein the lubricant composition
is free of lubricant compounds other than the the first ester compound or compounds (a) and the second ester compound or compounds
(b); and
a refrigerant composition selected from the group consisting of R410a, R32, and HFO refrigerants, combinations of these refrigerants,
and combinations or refrigerants comprising at least one of these refrigerants, wherein the lubricant and refrigerant combination
has a minimum miscibility temperature of about ?40° C. or lower.

US Pat. No. 9,494,953

CONTROL SYSTEM AND METHOD FOR MULTI-STAGE HEATING AND COOLING SYSTEM WITH MINIMUM ON TIME AND OFF TIME

Emerson Climate Technolog...

1. A method comprising:
determining, with an HVAC control module of an HVAC unit having a first cooling stage and at least one additional cooling
stage, a need for cooling of a space to be cooled based on a comparison of an indoor temperature of the space to be cooled
with an indoor temperature setpoint;

activating, with the HVAC control module, the first cooling stage and the at least one additional cooling stage of the HVAC
unit based on the determined need for cooling;

monitoring, with the HVAC control module, a monitored temperature of the HVAC unit corresponding to one of a supply air temperature
of air exiting the HVAC unit and a return air temperature of air entering the HVAC unit;

monitoring, with the HVAC control module, an on-time of the first cooling stage, the on-time being a time elapsed since activation
of the first cooling stage;

comparing, with the HVAC control module, the monitored temperature with an off-temperature setpoint and the monitored on-time
with a minimum on-time period setpoint;

deactivating, with the HVAC control module, the first cooling stage when the monitored temperature is less than the off-temperature
setpoint and the monitored on-time is greater than the minimum on-time period setpoint;

monitoring, with the HVAC control module, an off-time of the first cooling stage, the off-time being a time elapsed since
deactivation of the first cooling stage;

comparing, with the HVAC control module, the monitored temperature with an on-temperature setpoint, the on-temperature setpoint
being greater than the off-temperature setpoint;

comparing, with the HVAC control module, the monitored off-time with a minimum off-time period setpoint;
reactivating, with the HVAC control module, the first cooling stage when the monitored temperature is greater than the on-temperature
setpoint and the monitored off-time is greater than the minimum off-time period setpoint;

operating the at least one additional cooling stage throughout when the first cooling stage is activated, deactivated, and
reactivated; and

modifying, with the HVAC control module, at least one of the off-temperature setpoint, the on-temperature setpoint, the minimum
on-time period setpoint, and the minimum off-time period setpoint;

evaluating performance of the HVAC unit, with the HVAC control module, after modification of the at least one of the off-temperature
setpoint, the on-temperature setpoint, the minimum on-time period setpoint, and the minimum off-time period setpoint; and

determining, with the HVAC control module, whether to further modify the at least one of the off-temperature setpoint, the
on-temperature setpoint, the minimum on-time period setpoint, and the minimum off-time period setpoint based on the evaluation;

wherein the at least one additional cooling stage has corresponding on-temperature and off-temperature setpoints that are
different from the respective on-temperature and off-temperature setpoints of the first cooling stage.

US Pat. No. 9,404,498

CAPACITY MODULATED SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:
a shell defining an opening that receives a suction gas inlet fitting in communication with a suction pressure region disposed
within the shell;

a bearing housing fixed relative to the shell;
a compression mechanism located within the shell, supported on the bearing housing and in communication with the suction pressure
region, the compression mechanism including an orbiting scroll and a non-orbiting scroll that include spiral wraps defining
compression pockets therebetween, at least one of the orbiting scroll and the non-orbiting scroll defining an intermediate
passage that provides communication between the compression pockets and an intermediate pressure region disposed within the
shell, the intermediate pressure region defined by the bearing housing, an end plate of the orbiting scroll and a hub of the
orbiting scroll that extends axially from the end plate;

a capacity modulation assembly including a first control valve, a first line, and a second line, the first line extending
between the suction pressure region and the first control valve, the second line extending between the intermediate pressure
region and the first control valve, the first control valve selectively opening to provide communication between the intermediate
pressure region and the suction pressure region and thereby separate the orbiting scroll and the non-orbiting scroll to reduce
the capacity of the compressor; and

a suction valve assembly that includes a cap and a spring, the spring biasing the cap toward an end surface of the suction
gas inlet fitting, the cap preventing communication between the suction gas inlet fitting and the suction pressure region
when the cap engages the end surface of the suction gas inlet fitting.

US Pat. No. 9,316,227

COMPRESSOR AND OIL-COOLING SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:
a shell;
a compression mechanism disposed in said shell and compressing a working fluid;
a crankshaft disposed at least partially in said shell and drivingly engaged with said compression mechanism;
a bearing support rotatably supporting said crankshaft; and
a lubricant sump for retaining a volume of lubricant and disposed between said bearing support and said compression mechanism,
wherein said shell defines a first lubricant passageway that is fluidly separated from said lubricant sump and in communication
with an inlet of the compressor that is distinct from a working fluid inlet of the compressor.

US Pat. No. 9,217,434

COMPRESSOR HAVING DRIVE SHAFT WITH FLUID PASSAGES

Emerson Climate Technolog...

1. A compressor comprising:
a shell;
a compression mechanism supported within said shell;
a drive shaft engaged with said compression mechanism and defining first and second passages extending axially within said
drive shaft and a third passage extending radially through an outer circumferential surface of said drive shaft and in communication
with said first and second passages, said drive shaft defining an axially extending wall separating said first and second
passages, said drive shaft including a supply passage extending axially through a first axial end of said drive shaft, said
first and second passages fluidly communicating with said supply passage and extending axially from said supply passage; and

a motor including a rotor fixed to said drive shaft and a stator supported within said shell, said stator including an upper
stator winding and a lower stator winding, said third passage adapted to fling oil onto said upper stator winding during compressor
operation to cool said stator, wherein said third passage is aligned in an axial direction with a portion of said upper stator
winding, and wherein said oil is travelling radially outwardly when said oil contacts said upper stator winding.

US Pat. No. 9,528,517

ALIGNMENT FEATURE FOR A LOWER BEARING ASSEMBLY FOR A SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A compressor, comprising:
a shell;
a compression mechanism including a first scroll member having a first spiral wrap and a second scroll member having a second
spiral wrap intermeshed with the first spiral wrap;

a drive shaft having a first end engaged with the first scroll member for moving the first scroll member relative to the second
scroll member;

a first bearing assembly rotatably supporting the first end of the drive shaft;
a second bearing assembly including a bearing housing for rotatably supporting a second end of the drive shaft;
a base of the compressor secured to the shell;
a mount formed on either the second bearing assembly or the base to orient the second bearing assembly relative to the base;
and

a spacer disposed in the bearing housing that supports the drive shaft,
wherein the base includes an aperture, and the second bearing assembly is disposed at the aperture.

US Pat. No. 9,476,626

VARIABLE SPEED COMPRESSOR CONTROL WITH LOST ROTOR MITIGATION

Emerson Climate Technolog...

1. A drive controller for a motor of a compressor, the drive controller comprising:
a drive circuit that applies voltages to windings of the motor;
a speed control module that controls the drive circuit to rotate the motor at a requested speed;
a speed determination module that generates the requested speed based on a speed demand from a system controller; and
a lost rotor control module that identifies a lost rotor condition and, in response to identifying the lost rotor condition,
instructs the speed determination module to set the requested speed to an override speed that is lower than the speed demand,
wherein:

the lost rotor control module identifies the lost rotor condition in response to a comparison of a speed error with an adaptive
threshold,

the speed error is based on a difference between the requested speed and an estimated speed of the motor,
during a first system state, the adaptive threshold is equal to a first threshold, and
during a second system state, the adaptive threshold is equal to a second threshold.

US Pat. No. 9,304,521

AIR FILTER MONITORING SYSTEM

Emerson Climate Technolog...

1. A monitoring system for a heating, ventilation, or air conditioning (HVAC) system of a residential or commercial building,
the monitoring system comprising:
a light source disposed at one side of a filter element of the HVAC system and configured to output light;
a light sensor disposed on an opposite side of the filter element and configured to measure an amount of the light transmitted
through the filter element; and

a computer system configured to
receive values of the measured amount of light,
determine a baseline level based on one of the measured light values,
compare a present one of the measured light values to the baseline level, and
selectively generate a signal indicating dirtiness of the filter element in response to the present one of the measured light
values falling below a predetermined percentage of the baseline level.

US Pat. No. 9,194,393

COMPRESSOR WITH FLOODED START CONTROL

Emerson Climate Technolog...

1. A system comprising:
a compressor for a refrigeration system;
a temperature sensor that generates temperature data corresponding to at least one of a compressor temperature and an ambient
temperature;

a control module that receives the temperature data, determines an off-time period since the compressor was last on, determines
an amount of liquid present in the compressor based on the temperature data and the off-time period, compares the amount of
liquid with a predetermined threshold, and, when the amount of liquid is greater than the predetermined threshold, operates
the compressor according to at least one cycle including a first time period during which the compressor is on and a second
time period during which the compressor is off;

wherein the control module determines a pumping capacity of the compressor and determines the first time period of the at
least one cycle based on the amount of liquid and the pumping capacity, such that the amount of liquid is not pumped out of
the compressor during the at least one cycle.

US Pat. No. 9,562,530

ROTOR PUMP AND ROTARY MACHINERY COMPRISING THE SAME, THE ROTOR PUMP INCLUDING A PUMP BODY FORMING AN ACCOMMODATION CAVITY, A PUMP WHEEL ROTATING IN THE ACCOMMODATION CAVITY AND A SEALING PLATE HAVING AN ECCENTRIC HOLE THAT IS ECCEN

Emerson Climate Technolog...

1. A rotor pump, comprising:
a pump body that is rotatably driven, wherein a substantially cylindrical accommodation cavity is formed in the pump body,
the accommodation cavity has a bottom wall, and a recess is provided on an inner circumference of the accommodation cavity;

a pump wheel comprising a substantially cylindrical main body portion swinging in the accommodation cavity, a protrusion which
radially extends from the main body portion and is fitted in the recess, and a substantially cylindrical first shaft portion
which axially extends from the main body portion; and

a sealing plate positioned relative to the pump body and comprising an eccentric hole which is eccentric relative to a rotation
axis of the pump body,

wherein the first shaft portion of the pump wheel is rotatably fitted in the eccentric hole, and
a suction channel is formed on one side of the pump wheel, a discharge channel is formed on the other side of the pump wheel,
the suction channel and the discharge channel are each in fluid communication with a compression cavity formed between an
outer circumference of the pump wheel and the inner circumference of the accommodation cavity.

US Pat. No. 9,480,177

COMPRESSOR PROTECTION MODULE

Emerson Climate Technolog...

8. A set of components comprising:
a base adapted to be mounted to a compressor and including a first engagement feature and a first receptacle adapted to receive
an electrical connector;

an electronic component disposed within the base;
a first cap including an integral display device and a second engagement feature configured to engage the first engagement
feature to secure the first cap to the base, the integral display device being in communication with the electronic component
when the first cap is engaged with the base; and

a second cap including a third engagement feature configured to engage the first engagement feature to secure the second cap
to the base, the second cap including a second receptacle providing communication between the electronic component and a remote
display device.

US Pat. No. 9,366,462

COMPRESSOR ASSEMBLY WITH DIRECTED SUCTION

Emerson Climate Technolog...

12. A compressor comprising:
a shell assembly having a fitting through which fluid is received from outside of the compressor, said shell assembly having
a longitudinal axis;

a compression mechanism comprising a non-orbiting scroll disposed within a chamber defined by said shell assembly, said non-orbiting
scroll haying a longitudinal axis that is parallel to said longitudinal axis of said shell assembly; and

a conduit extending through said chamber between said fitting and a suction inlet of said compression mechanism and transmitting
at least a portion of said fluid from said fitting to said suction inlet, said conduit including an inlet that is spaced apart
from said fitting and an outlet that engages said compression mechanism, said conduit including an aperture spaced apart from
said inlet and said outlet and providing fluid communication between said conduit and said chamber, said conduit including
a bulged portion, said inlet is disposed radially between said bulged portion and said longitudinal axis of said shell assembly,
said conduit including a mounting flange having mounting apertures and a pair of sealing tabs extending laterally outward
from said mounting flange in opposite directions and sealing said conduit against said non-orbiting scroll,

wherein said conduit includes an integrally formed rib extending outward therefrom, said rib is disposed proximate said outlet
and between a pair of mounting tabs on said mounting flange, wherein said mounting apertures extend through said mounting
tabs,

wherein said rib extends from the mounting flange in a direction perpendicular to said sealing tabs, said rib extends vertically
upward from said mounting flange such that an uppermost portion of said rib is disposed vertically higher than said mounting
flange such that said outlet of said conduit is disposed vertically between said inlet of said conduit and an uppermost edge
of said rib,

wherein said sealing tabs are spaced apart from said mounting tabs and said mounting apertures, said sealing tabs are disposed
in a different plane than said mounting tabs.

US Pat. No. 9,470,445

HEAD PRESSURE CONTROL

Emerson Climate Technolog...

1. A system for controlling the head pressure of a vapor compression circuit, the system comprising:
a low side condition sensor disposed in a low side of the vapor compression circuit; wherein the low side condition sensor
measures a low side operating condition;

a high side condition sensor disposed in a high side of the vapor compression circuit; wherein the high side condition sensor
measures a high side operating condition;

a storage device storing information describing a compressor operating envelope;
a control device influencing the high side operating condition; and
a controller in communication with the low side condition sensor, the high side condition sensor, the storage device and the
control device; the controller determining a theoretical high side operating condition using the information stored in the
storage device, comparing the high side operating condition to the theoretical high side operating condition, determining
a control output, and communicating the control output to the control device.

US Pat. No. 9,404,499

DUAL CHAMBER DISCHARGE MUFFLER

Emerson Climate Technolog...

1. A compressor comprising:
a shell;
a compression mechanism disposed within said shell;
a muffler proximate said shell, said muffler including a first chamber and a second chamber defined by a housing;
a spacer disposed through said housing, said spacer receiving a fastener that fixes said muffler to said shell; and
a check valve assembly disposed between said first chamber and said second chamber that enables fluid communication between
said first chamber and said second chamber.

US Pat. No. 9,303,642

COMPRESSOR HAVING CAPACITY MODULATION ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:
a shell assembly defining a suction pressure region and a discharge pressure region;
a first scroll member disposed within said shell assembly and including a first end plate having a discharge passage, a first
spiral wrap extending from said first end plate and a biasing passage extending through said first end plate;

a second scroll member disposed within said shell assembly and including a second end plate having a second spiral wrap extending
therefrom, said first and second spiral wraps meshingly engaged with each other and forming a series of pockets therebetween;

a seal assembly engaging said first scroll member and isolating said discharge pressure region from said suction pressure
region, said seal assembly and said first scroll member defining an axial biasing chamber therebetween, said biasing passage
being in communication with a first of said pockets and said axial biasing chamber;

a modulation control chamber fluidly coupled with said axial biasing chamber by a first passage; and
a modulation control valve fluidly coupled with said modulation control chamber by a second passage and movable between a
first position allowing communication between said second passage and said suction pressure region and a second position restricting
communication between said second passage and said suction pressure region.

US Pat. No. 9,046,900

METHOD AND APPARATUS FOR MONITORING REFRIGERATION-CYCLE SYSTEMS

EMERSON CLIMATE TECHNOLOG...

1. A monitoring system for a heating, ventilation, or air conditioning (HVAC) system of a residential or commercial building,
the monitoring system comprising:
an evaporator unit device comprising:
a first current sensor that measures current provided to a circulator blower of the HVAC system, wherein the measured current
from the first current sensor is used to diagnose a problem with the circulator blower;

a differential pressure sensor that measures a differential air pressure between a point prior to a filter element of the
HVAC system and a point after the filter element;

a first temperature sensor that measures a refrigerant temperature between a condenser of the HVAC system and an expansion
valve of the HVAC system;

a second temperature sensor that measures a refrigerant temperature between an evaporator of the HVAC system and a compressor
of the HVAC system; and

a condenser unit device that communicates with the evaporator unit device over low-voltage control lines, wherein the condenser
unit device comprises a second current sensor that measures current provided to the compressor,

wherein the evaporator unit device transmits sensor data to a remote monitoring service over a data network, and wherein an
efficiency of the HVAC system is calculated based on the sensor data.

US Pat. No. 9,551,357

OIL MANAGEMENT SYSTEM FOR A COMPRESSOR

Emerson Climate Technolog...

1. An oil management system for a compressor in a refrigeration system comprising:
a heater arranged to heat oil in a crank case of the compressor;
an oil temperature sensor located within the crank case of the compressor and measuring a temperature of the oil within the
crank case of the compressor;

a pressure sensor which measures crank case pressure of the compressor; and,
a controller operatively associated with the temperature sensor, the pressure sensor, and the heater, the controller arranged
to:

calculate a saturation temperature (Tsat) of refrigerant used in the refrigeration system from the measured crank case pressure,
determine a min temperature (Tmin) based on the saturation temperature (Tsat), the min temperature (Tmin) being greater than
the saturation temperature (Tsat), and

control operation of the heater on the basis of ambient air temperature and oil temperature to maintain the oil temperature
measured by the oil temperature sensor within a range Tmax?R?Tmin where Tmax>Tmin, the control including:

disabling the heater when the ambient air temperature is above the range; and
when the ambient air temperature is less than the min temperature (Tmin) and the oil temperature measured by the oil temperature
sensor is within the range, beginning operation of the heater before the oil temperature measured by the oil temperature sensor
becomes less than or equal to the min temperature (Tmin).

US Pat. No. 9,360,011

SYSTEM INCLUDING HIGH-SIDE AND LOW-SIDE COMPRESSORS

Emerson Climate Technolog...

1. A heat pump system operable in a first heating mode and in a first cooling mode, the heat pump system comprising:
a high-side compressor including a first suction inlet and a first discharge outlet;
a low-side compressor including a second suction inlet and a second discharge outlet;
a discharge conduit having a first end fluidly coupled with said first discharge outlet and a second end fluidly coupled with
said second discharge outlet such that said discharge conduit receives compressed working fluid from said low-side compressor
in said first heating mode and receives compressed working fluid from said high-side compressor in said first cooling mode;

a suction conduit in fluid communication with said first and second suction inlets in said first heating mode and in said
first cooling mode; and

a high-side bypass conduit having a first control valve and a low-side bypass conduit having a second control valve, wherein
working fluid flows through said low-side bypass conduit in said first heating mode and is restricted from flowing through
said low-side bypass conduit in said first cooling mode, and wherein working fluid flows through said high-side bypass conduit
in said first cooling mode and is restricted from flowing through said high-side bypass conduit in said first heating mode.

US Pat. No. 9,347,443

DISCHARGE VALVE FOR RECIPROCATING COMPRESSOR HAVING INNER AND OUTER FLOW AREAS

Emerson Climate Technolog...

1. A compressor comprising:
a compressor body; and
a discharge valve assembly coupled to the compressor body between a valve plate and a valve retainer and including at least
one reed valve assembly including:

a first support guide member;
a second support guide member; and
a reed assembly; said reed assembly including a reed and a spring washer disposed between the first and second support guide
members and movable between a closed position wherein the reed engages the valve plate to restrict discharge gas from entering
the compressor body and an open position wherein the reed is displaced from the valve plate to permit gas to escape the compressor
body through an escape area defined by an outer escape area located between an outer diameter of the reed and the valve plate
and an inner escape area located between an inner diameter of the reed and the second support guide,

wherein the first support guide member includes a first central hub with a plurality of arms extending therefrom and extending
a distance greater than an inner diameter of the spring washer and an inner diameter of the reed.

US Pat. No. 9,088,232

POWER FACTOR CORRECTION WITH VARIABLE BUS VOLTAGE

Emerson Climate Technolog...

1. A controller comprising:
a voltage determination module that determines a desired direct current (DC) bus voltage for a DC bus electrically connected
between a power factor correction (PFC) module and an inverter power module that drives a motor,

wherein the voltage determination module determines the desired DC bus voltage based on at least one of a torque of the motor
and a speed of the motor;

a bus voltage command module that determines a commanded bus voltage based on the desired DC bus voltage; and
a PFC control module that controls the PFC module to create a voltage on the DC bus that is based on the commanded bus voltage.

US Pat. No. 9,476,625

SYSTEM AND METHOD FOR MONITORING COMPRESSOR FLOODBACK

Emerson Climate Technolog...

1. A system comprising:
a compressor connected to a condenser;
a discharge sensor that outputs a discharge temperature signal corresponding to a discharge temperature of refrigerant from
the compressor; and

a control module connected to the discharge sensor, said control module being configured to receive at least one of compressor
power data and compressor current data, determine a saturated condensing temperature based on a speed of the compressor and
at least one of the compressor power data and the compressor current data, calculate a discharge superheat temperature based
on the saturated condensing temperature and the discharge temperature, monitor a floodback condition of the compressor by
comparing the discharge superheat temperature with a threshold, and, when the discharge superheat temperature is less than
or equal to the threshold, increase the speed of the compressor or decrease an opening of an expansion valve associated with
the compressor.

US Pat. No. 9,435,340

SCROLL COMPRESSOR WITH VARIABLE VOLUME RATIO PORT IN ORBITING SCROLL

Emerson Climate Technolog...

18. A compressor comprising:
a first scroll member including a first end plate defining a first discharge port and a first spiral wrap extending from said
first end plate;

a second scroll member including first and second members coupled to one another and forming a second end plate defining a
variable volume ratio port and a second spiral wrap extending from said second end plate and meshingly engaged with said first
spiral wrap and forming compression pockets and a discharge pocket, said first member defining a first portion of said second
end plate and said second spiral wrap and said second member defining a second portion of said second end plate and having
a drive hub extending therefrom, said variable volume ratio port extending through said first member, located radially outward
relative to said first discharge port and in communication with a first compression pocket;

a variable volume ratio valve located axially between said first and second members and displaceable between a closed position
and an open position, said variable volume ratio valve isolating said variable volume ratio port from said discharge pocket
when in the closed position and providing communication between said first compression pocket and said discharge pocket via
said variable volume ratio port when in the open position; and

a drive shaft extending into said drive hub of said second scroll member and driving orbital displacement of said second scroll
member relative to said first scroll member.

US Pat. No. 9,341,187

COMPRESSOR ASSEMBLY WITH LIQUID SENSOR

Emerson Climate Technolog...

1. A compressor comprising:
a shell defining a lubricant sump;
a compression mechanism disposed within said shell and operable to compress a working fluid;
a first temperature sensor at least partially disposed within said shell at a first position;
a second temperature sensor at least partially disposed within said shell at a second position that is vertically higher than
said first position;

a control module in communication with said first and second temperature sensors, said control module determining a difference
between a first temperature measurement from said first temperature sensor and a second temperature measurement from said
second temperature sensor, said control module determining whether a liquid level in said lubricant sump is below a predetermined
level based on said difference; and

a pressure sensor disposed at least partially within said shell, wherein said control module determines whether said liquid
level is below said predetermined level based on whether data from said pressure sensor indicates a presence of liquid working
fluid in said shell.

US Pat. No. 9,115,718

COMPRESSOR BEARING AND UNLOADER ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:
a drive shaft including a main body and a crank pin extending from an axial end of said main body;
a compression mechanism including a first member and a second member, said crank pin drivingly engaging said second member
and causing motion of said second member relative to said first member;

a bearing axially spaced apart from said first and second members, said bearing rotatably supporting and engaging said main
body of said drive shaft; and

an unloader rotatably engaging said bearing and slidably engaging said main body.

US Pat. No. 9,625,183

SYSTEM AND METHOD FOR CONTROL OF A TRANSCRITICAL REFRIGERATION SYSTEM

Emerson Climate Technolog...

1. A CO2 refrigeration system, operable in a subcritical mode and a transcritical mode, comprising:
at least one compressor;
a heat exchanger that receives refrigerant discharged from the at least one compressor and that is operable as a gas cooler
when the CO2 refrigeration system is operating in the transcritical mode and as a condenser when the CO2 refrigeration system is operating in the subcritical mode;

a liquid receiver that receives refrigerant discharged from the heat exchanger;
a first valve connected between the heat exchanger and the liquid receiver, the first valve controlling a flow of the refrigerant
from the heat exchanger to the liquid receiver;

a valve controller that monitors an outdoor ambient temperature, a temperature of the refrigerant exiting the heat exchanger,
and a pressure of the refrigerant exiting the heat exchanger, and determines whether the CO2 refrigeration system is operating in the subcritical mode or in the transcritical mode;

wherein, when the valve controller determines that the CO2 refrigeration system is operating in the transcritical mode, the valve controller determines a pressure setpoint based on
the monitored outdoor ambient temperature and controls the first valve based on a comparison of the determined pressure setpoint
and the monitored pressure of the refrigerant exiting the heat exchanger; and

wherein, when the valve controller determines that the CO2 refrigeration system is operating in the subcritical mode, the valve controller determines a subcooling temperature of the
refrigerant based on the monitored temperature of the refrigerant exiting the heat exchanger and the monitored pressure of
the refrigerant exiting the heat exchanger and controls the first valve based on a comparison of the calculated subcooling
temperature with a predetermined subcooling setpoint.

US Pat. No. 9,564,846

POWER FACTOR CORRECTION WITH VARIABLE BUS VOLTAGE

Emerson Climate Technolog...

1. A controller comprising:
a bus voltage command module that:
(i) outputs a commanded bus voltage for a direct current (DC) bus electrically connected between a power factor correction
(PFC) module and an inverter power module that drives a motor;

(ii) sets the commanded bus voltage equal to a measured voltage of the DC bus when the controller transitions from an off
state to an on state; and

(iii) sets the commanded bus voltage equal to a predetermined startup voltage for a predetermined startup period after the
controller transitions from the off state to the on state;

a rate limiting module that ramps a rate limited voltage toward the commanded bus voltage during the predetermined startup
period based on a predetermined rate limit; and

a PFC control module that controls the PFC module to create a voltage on the DC bus that is based on the rate limited voltage.

US Pat. No. 9,494,157

COMPRESSOR WITH CAPACITY MODULATION AND VARIABLE VOLUME RATIO

Emerson Climate Technolog...

1. A compressor comprising:
a shell assembly;
a first scroll member disposed within said shell assembly, said first scroll member including a first end plate defining a
discharge port and a first port and having a first spiral wrap extending from a first side thereof;

a second scroll member disposed within said shell assembly and including a second end plate defining a second port and having
a second spiral wrap extending therefrom and meshingly engaged with said first spiral wrap to form a suction-pressure pocket
in fluid communication with a suction-pressure region disposed outside of said first and second spiral wraps, intermediate-pressure
pockets, and a discharge-pressure pocket in fluid communication with a discharge-pressure region disposed outside of said
first and second spiral wraps, a first of said intermediate-pressure pockets being in fluid communication with said first
port and a second of said intermediate-pressure pockets being in fluid communication with said second port;

a motor assembly driving relative orbital motion between said first and second scroll members;
a first valve assembly located within said shell assembly and in fluid communication with said first port, said first valve
assembly displaceable between open and closed positions to selectively provide communication between said first intermediate-pressure
pocket and said suction-pressure region via said first port; and

a second valve assembly located within said shell assembly and in fluid communication with said second port, said second valve
assembly displaceable between open and closed positions to selectively provide communication between said second intermediate-pressure
pocket and said discharge-pressure region via said second port.

US Pat. No. 9,494,356

CONDENSING UNIT HAVING FLUID INJECTION

Emerson Climate Technolog...

1. A climate control system comprising:
a compressor;
a first heat exchanger in fluid communication with said compressor;
a second heat exchanger in fluid communication with said compressor and said first heat exchanger;
a third heat exchanger disposed between said first heat exchanger and said second heat exchanger and including an inlet and
an outlet;

a conduit fluidly coupled to said third heat exchanger and said compressor and operable to selectively supply fluid to said
compressor;

a valve operable to control a volume of fluid supplied to said compressor via said conduit; and
a controller operable to control said valve based on a temperature difference between said outlet of said third heat exchanger
and said inlet of said third heat exchanger.

US Pat. No. 9,472,944

COMPRESSOR PROTECTION AND GRID FAULT DETECTION DEVICE

Emerson Climate Technolog...

1. A method of operating a refrigeration system that receives power from an electrical grid, the method comprising:
selectively operating at least one component of the refrigeration system in a first state;
selectively detecting a fault event of the electrical grid in response to a concurrent (i) increase in amount of current drawn
by the at least one component and (ii) decrease in voltage of power received by the at least one component;

in response to detecting the fault event, switching the at least one component from the first state to a second state, wherein
the at least one component consumes less power in the second state than in the first state;

determining a first delay period according to a random process;
identifying a conclusion of the fault event; and
in response to the conclusion of the fault event, waiting for the first delay period before switching the at least one component
back to the first state.

US Pat. No. 9,850,900

ROTARY COMPRESSOR AND ROTATION MECHANISM

Emerson Climate Technolog...

1. A rotary compressor, comprising:
a shell including an oil sump for receiving lubricating oil;
a compressing mechanism disposed in the shell;
a driving mechanism for driving the compressing mechanism, wherein the driving mechanism includes a rotary shaft provided
therein, the rotary shaft having a through hole extending in an axial direction therein and being in fluid communication with
the oil sump via the through hole; and

an oil level sensor in fluid communication with the through hole in the rotary shaft through a pressure picking passage such
that lubricating oil can flow from the through hole in the rotary shaft through the pressure picking passage to the oil level
sensor, wherein the oil level sensor is adapted to sense a level of lubricating oil in the oil sump in response to a pressure
of the lubricating oil,

wherein the pressure picking passage further includes a pressure picking pipe disposed in the pressure picking passage that
selectively permits the flow of the lubricating oil to the oil level sensor based on a pressure of the lubricating oil.

US Pat. No. 9,081,394

METHOD AND APPARATUS FOR MONITORING A REFRIGERATION-CYCLE SYSTEM

EMERSON CLIMATE TECHNOLOG...

1. A method of monitoring operation of a refrigerant-cycle system, the method comprising:
measuring an operating characteristic of a condenser unit using a condenser unit sensor, the condenser unit including a condenser
and a compressor;

measuring an operating characteristic of an evaporator unit using an evaporator unit sensor, the evaporator unit including
an evaporator and a fan, wherein the operating characteristic of the evaporator unit includes at least one of air pressure,
air flow, and air temperature;

using an electrical sensor, measuring an electrical quantity indicative of power consumption of the refrigerant-cycle system;
and

using a processing system, calculating an efficiency of the refrigerant-cycle system based on the power consumption of the
refrigerant-cycle system, the operating characteristic of the condenser unit, and the operating characteristic of the evaporator
unit.

US Pat. No. 9,194,894

COMPRESSOR SENSOR MODULE

Emerson Climate Technolog...

1. A system for a compressor having an electric motor connected to a power supply, the system comprising:
a sensor module comprising:
an input that receives current measurements generated by a current sensor based on a current of the power supply; and
a processor that is connected to the input, that determines a maximum continuous current for the electric motor set based
on a type of refrigerant used by the compressor, that selectively compares the current measurements with a value equal to
the maximum continuous current multiplied by a predetermined value, and that sets a flag when the current measurements are
greater than the value for a predetermined period; and

at least one of a control module and a system controller that selectively adjusts at least one of compressor and refrigeration
system operation based on the setting of the flag.

US Pat. No. 9,926,932

DISCHARGE VALVE AND COMPRESSOR COMPRISING SAME

Emerson Climate Technolog...

1. A discharge valve, comprising:a valve body having a first end provided with a fluid inlet, a second end opposite the first end, and a side wall located between the first end and the second end,
wherein the first end of the valve body is adapted to be attached to a compression mechanism at a discharge port of the compression mechanism such that the fluid inlet received fluid from the discharge port during operation of the compression mechanism,
wherein the side wall of the valve body is provided therein with at least one fluid outlet in fluid communication with the fluid inlet, and a valve flap for opening or closing the fluid outlet,
wherein an axis direction of the fluid outlet is inclined relative to an axis direction of the fluid inlet.

US Pat. No. 9,590,413

SYSTEM AND METHOD FOR COMPRESSOR MOTOR PROTECTION

Emerson Climate Technolog...

1. A system comprising:
a refrigerant compressor including an electric motor;
a current sensor that measures current flow to the electric motor;
a switching device configured to close and open to allow and prevent current flow to the electric motor, respectively;
a first maximum continuous current (MCC) device that includes a stored digital value corresponding to a maximum continuous
current for the electric motor

a second MCC device;
a motor protection module that:
communicates with the first MCC device, the second MCC device, the current sensor, and the switching device;
determines a first MCC for the electric motor based on the stored digital value received from the first MCC device;
determines a second MCC for the electric motor based on an output of the second MCC device;
sets a predetermined MCC to one of the first MCC and the second MCC; and
controls the switching device based on a comparison of the current flow to the electric motor and the predetermined MCC.

US Pat. No. 9,562,433

SCROLL COMPRESSOR INCLUDING OLDHAM COUPLING HAVING KEYS THAT ARE SLIDINGLY RECEIVED IN SLOTS OF A NON-ORBITING SCROLL AND/OR AN ORBITING SCROLL

Emerson Climate Technolog...

1. A compression mechanism comprising:
an orbiting scroll member including a base plate;
a non-orbiting scroll member meshingly engaged with the orbiting scroll member, the non-orbiting scroll member including a
first radially extending slot; and

an Oldham coupling including a ring portion disposed about the base plate and a first radially extending key portion disposed
in the first radially extending slot, the ring portion having a first upper surface and a first lower surface, and the key
portion having a second upper surface and a second lower surface, wherein at least one of:

the second upper surface is coplanar with the first upper surface; and
the second lower surface is coplanar with the first lower surface.

US Pat. No. 9,476,414

VARIABLE CAPACITY RECIPROCATING COMPRESSOR

Emerson Climate Technolog...

1. A reciprocating compressor comprising:
a shell;
a first cylinder disposed within said shell and including a first valve that is movable relative to said first cylinder;
a plate fixed relative to said first cylinder and including a second valve that is movable relative to said plate;
a second cylinder axially aligned with said first cylinder and moveable relative to said first cylinder between first and
second positions; and

a piston disposed within said second cylinder and including a third valve that is movable relative to said piston, said piston
reciprocating relative to said first and second cylinders, said piston and said plate defining a first compression chamber
therebetween, said piston and said first cylinder defining a second compression chamber therebetween,

wherein motion of said piston toward said plate compresses fluid within said first compression chamber and forces the compressed
fluid out of said first compression chamber and into said second compression chamber without exiting said shell.

US Pat. No. 10,075,116

SYSTEM AND METHOD FOR PERMANENT MAGNET MOTOR CONTROL

Emerson Climate Technolog...

1. A method of operating an electric motor, the method comprising:starting the electric motor in an open loop control mode;
using an estimator module, estimating derivatives with respect to time of total flux linkages of the electric motor based on at least one measured parameter of the electric motor;
while the electric motor is in the open loop control mode, evaluating the derivatives of the total flux linkages estimated by the estimator module;
in response to the evaluation of the derivatives of the total flux linkages, determining whether the estimator module has converged; and
in response to a determination that the estimator module has not converged within a predetermined period of time after starting the electric motor, signaling a first fault condition and at least one of: (i) shutting down the electric motor; and (ii) restarting the electric motor.

US Pat. No. 9,689,391

COMPRESSOR HAVING SOUND ISOLATION FEATURE

Emerson Climate Technolog...

1. A scroll compressor comprising:
a bearing housing including at least one radially extending arm having an axially extending bore;
an orbiting scroll member including an orbiting end plate and an orbiting spiral wrap extending from the orbiting end plate;
a non-orbiting scroll member having a second acoustic impedance value, and including a non-orbiting end plate, a non-orbiting
spiral wrap extending from the non-orbiting end plate and meshingly engaged with the orbiting spiral wrap, and a radially
extending flanged portion comprising at least one axially extending aperture substantially aligned with the axially extending
bore;

at least one fastener disposed within the at least one axially extending aperture and the axially extending bore; and
a sound isolation member disposed between at least a portion of the fastener and at least a portion of the non-orbiting scroll
member, wherein the sound isolation member comprises a composite material comprising a polymer and a plurality of particles,
the composite material having a first acoustic impedance value greater than the second acoustic impedance value and a coefficient
of thermal expansion (CTE) being less than or equal to 1.5 ×10?3 mm/(mm?° K) for 0.25 mm growth.

US Pat. No. 10,072,659

PRESSURE CONTROL VALVE AND SCROLL COMPRESSOR

Emerson Climate Technolog...

11. A scroll compressor comprising:a housing;
an orbiting scroll component disposed within the housing and comprising a first end plate and a first scroll vane formed on the first end plate;
a non-orbiting scroll component disposed within the housing and comprising a second end plate and a second scroll vane formed on the second end plate, wherein the second scroll vane is engaged with the first scroll vane in such a way that a series of compression pockets are formed between the first and second scroll vanes; and
a pressure control valve disposed within the housing and comprising:
a valve seat, in which a valve hole is formed;
a first valve disc member movable relative to the valve seat and configured to shield the valve hole and in which a fluid passage is formed; and
a second valve disc member movable relative to the valve seat and the first valve disc member, and the second valve disc member is arranged between the valve seat and the first valve disc member, the second valve disc member is configured to shield the fluid passage,
wherein assuming that a direction directed from the second valve disc member to the first valve disc member is a first direction, when a pressure difference across the first valve disc member and the second valve disc member is directed to the first direction and is greater than or equal to a first predetermined value, the first valve disc member is opened so as to allow fluid to flow through the pressure control valve in the first direction; and when the pressure difference across the first valve disc member and the second valve disc member is directed to a second direction opposite to the first direction and is greater than or equal to a second predetermined value, the second valve disc member is opened so as to allow the fluid to flow through the pressure control valve in the second direction,
wherein the first valve disc member comprises:
a first base portion fixed relative to the valve seat;
a first elastic neck portion extending from the first base portion; and
a head portion connected with the first elastic neck portion,
wherein the head portion is configured to shield the valve hole, and the fluid passage is formed by at least one through hole formed in the head portion.

US Pat. No. 10,066,622

COMPRESSOR HAVING CAPACITY MODULATION SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:a shell assembly defining a suction-pressure region and a discharge-pressure region, the shell assembly including a partition separating the suction-pressure region from the discharge-pressure region;
a first scroll member disposed within the shell assembly and including a first end plate having a discharge passage, a modulation port, a biasing passage, and a first spiral wrap extending from the first end plate;
a second scroll member disposed within the shell assembly and including a second end plate having a second spiral wrap extending therefrom, the first and second spiral wraps meshingly engaged and forming a series of pockets during orbital displacement of the second scroll member relative to the first scroll member, the modulation port in communication with a first one of the pockets, the biasing passage in communication with a second one of the pockets;
a floating seal assembly engaged with the partition and the first scroll member and isolating the discharge-pressure region from the suction-pressure region;
a modulation valve ring located axially between the floating seal assembly and the first end plate and being in sealing engagement with an outer radial surface of a hub extending from the first end plate and an outer radial surface of the floating seal assembly to define an axial biasing chamber in fluid communication with the biasing passage, the modulation valve ring being axially displaceable between first and second positions, the modulation valve ring abutting the first end plate and closing the modulation port when in the first position, the modulation valve ring is spaced apart from the first end plate to open the modulation port when in the second position; and
a modulation lift ring located axially between the modulation valve ring and the first end plate and in sealing engagement with the modulation valve ring to define a modulation control chamber between the modulation valve ring and the modulation lift ring, the modulation lift ring including a seal having a U-shaped cross section formed from a polymeric material and engaging first and second annular walls of the modulation valve ring.

US Pat. No. 9,777,730

SCROLL COMPRESSOR WITH VARIABLE VOLUME RATIO PORT IN ORBITING SCROLL

Emerson Climate Technolog...

13. A compressor comprising:
a shell;
a first scroll member disposed within said shell and including a first end plate and a first spiral wrap extending from said
first end plate;

a second scroll member disposed within said shell and including a second end plate and a second spiral wrap extending from
said second end plate and meshingly engaged with said first spiral wrap and forming first and second compression pockets,
said second end plate defining a first variable volume ratio port, a second variable volume ratio port and a discharge port,
said first and second variable volume ratio ports located radially outward relative to said discharge port and in communication
with said first and second compression pockets, respectively, said discharge port in selective communication with said first
and second variable volume ratio ports;

a drive shaft engaged with said second scroll member and driving orbital displacement of said second scroll member relative
to said first scroll member; and

a first variable volume ratio valve displaceable between open and closed positions, said first variable volume ratio valve
opening said first variable volume ratio port when in the open position and closing said first variable volume ratio port
when in the closed position, said first variable volume ratio valve fluidly isolating said first and second variable volume
ratio ports from each other when in the closed position.

US Pat. No. 9,541,084

CAPACITY MODULATED SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:
a shell defining an opening that receives a suction gas inlet fitting in communication with a suction pressure region disposed
within the shell;

a bearing housing fixed relative to the shell;
a compression mechanism located within the shell, supported on the bearing housing and in communication with the suction pressure
region, the compression mechanism including an orbiting scroll and a non-orbiting scroll that include spiral wraps defining
compression pockets therebetween, at least one of the orbiting scroll and the non-orbiting scroll defining an intermediate
passage that provides communication between the compression pockets and an intermediate pressure region disposed within the
shell, the intermediate pressure region defined by the bearing housing, an end plate of the orbiting scroll and a hub of the
orbiting scroll that extends axially from the end plate;

a capacity modulation assembly including a first control valve, a first line, and a second line, the first line extending
between the suction pressure region and the first control valve, the second line extending between the intermediate pressure
region and the first control valve, the first control valve selectively opening to provide communication between the intermediate
pressure region and the suction pressure region and thereby separate the orbiting scroll and the non-orbiting scroll to reduce
the capacity of the compressor; and

a suction valve assembly that includes a cap and a spring, the spring biasing the cap toward an end surface of the suction
gas inlet fitting, the cap preventing communication between the suction gas inlet fitting and the suction pressure region
when the cap engages the end surface of the suction gas inlet fitting.

US Pat. No. 9,651,286

REFRIGERATION MONITORING SYSTEM AND METHOD

Emerson Climate Technolog...

1. A system comprising:
a refrigeration circuit including a condenser and a compressor having a motor;
a first sensor producing a signal indicative of a detected condenser temperature of said condenser;
a second sensor producing a signal indicative of one of current and power drawn by said motor; and
processing circuitry in communication with said first sensor and said second sensor and operable to determine a derived, non-measured
condenser temperature by referencing said current or power signal on a map of current or power versus condenser temperature,
said processing circuitry operable to compare said derived condenser temperature to said detected condenser temperature to
determine a charge level of said refrigeration circuit.

US Pat. No. 9,638,191

CAPACITY MODULATED SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:
a housing including a discharge pressure region and a suction pressure region;
a first scroll member supported within said housing and having a first end plate, a first spiral wrap extending from a first
side of said first end plate, a first annular recess located on a second side of said first end plate having first and second
radial passages in communication therewith, and a first passage extending through said first end plate and in communication
with said first annular recess;

a second scroll member supported within said housing and including a second end plate having a second spiral wrap extending
therefrom and meshingly engaged with said first spiral wrap to form a series of compression pockets and a second passage extending
therethrough, said first passage being in communication with a first of said compression pockets to provide communication
between said first compression pocket and said first annular recess and said second passage being in communication with a
second of said compression pockets; and

a capacity modulation assembly including:
a first piston located within said first annular recess and displaceable between first and second positions, said first piston
preventing communication between said first passage and said first radial passage when in the first position, and said first
piston providing communication between said first passage and said first radial passage when in the second position;

a bearing housing supporting said second scroll member for orbital displacement relative to said first scroll member and including
a second annular recess generally aligned with said second passage and third and fourth radial passages in communication with
said second annular recess;

a second piston located within said second annular recess and axially displaceable between first and second positions, said
second piston preventing communication between said second passage and said third radial passage when in the first position,
and said second piston providing communication between said second passage and said third radial passage when in the second
position;

a discharge passage extending through said first end plate and in communication with said discharge pressure region, and a
third annular recess disposed radially outwardly of said discharge passage; and

a solenoid having a communication passage selectively providing communication between said second radial passage and said
third annular recess, wherein when said solenoid provides communication between said second radial passage and said third
annular recess, said first piston is in said first position, and when said solenoid prevents communication between said second
radial passage and said third annular recess, said first piston is in said second position.

US Pat. No. 9,513,643

BUILDING DEVICE CLUSTER DATA DISPLAY WITH THUMBNAIL GRAPHICAL DISPLAY INTERFACE

Emerson Climate Technolog...

1. A system comprising:
a first building system including a first sensor that generates first operating data corresponding to the first building system,
the first operating data including a plurality of first data values generated by the first sensor and corresponding time values
associated with each of the first data values;

a second building system including a second sensor that generates second operating data corresponding to the second building
system, the second operating data including a plurality of second data values generated by the second sensor and corresponding
time values associated with each of the second data values;

a data server that receives and stores the first operating data and the second operating data over time;
a user terminal that accesses the first operating data and the second operating data, that receives user input selecting the
first operating data and the second operating data for display, that receives user input selecting a first time period for
display, that displays the first data values from the first operating data that have corresponding time values within the
first time period and the second data values from the second operating data that have corresponding time values within the
first time period together in a graphical display having a common time axis such that the first data values from the first
operating data are displayed in the graphical display aligned with the second data values from the second operating data having
common corresponding time values, the common corresponding time values being indicated on the common time axis, that displays
a thumbnail image corresponding to each set of operating data available for display in the graphical display, each thumbnail
image including a graph displaying actual data values represented in the corresponding set of operating data that have corresponding
time values within the first time period, that receives user input selecting a second time period for display, and that updates
the graph for each thumbnail image to display the actual data values represented in the corresponding set of operating data
that have corresponding time values within the second time period;

wherein each thumbnail image can be selected to display the corresponding set of operating data in the graphical display.

US Pat. No. 9,377,022

RADIALLY COMPLIANT SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:
a compression mechanism including orbiting and non-orbiting scroll members meshingly engaging each other;
a driveshaft having an eccentric crank pin engaging said orbiting scroll member such that rotation of said driveshaft about
a first axis causes orbital motion of said orbiting scroll relative to said non-orbiting scroll; and

a lever mounted to said driveshaft for rotation with said driveshaft about said first axis, said lever rotatable coupled to
said driveshaft by a pin that extends through an aperture in said lever such that said lever is rotatable about said pin relative
to said driveshaft about a second axis that extends through said pin and is perpendicular to said first axis.

US Pat. No. 9,885,002

CARBON DIOXIDE CO-FLUID

Emerson Climate Technolog...

1. A compressor containing a lubricant, wherein the lubricant comprises a compound selected from

where m is 1 to 10; R is alkyl, alkenyl, or aryl with 1 to 26 carbon atoms; R? is H or C1-6 alkyl; R? is H, methyl, or ethyl; R?? is H, methyl, or ethyl; and at least one R? and R?? is H;


where m is 1 to 10; R is alkyl, alkenyl, or aryl with 1 to 26 carbon atoms; p is 1 to 3; R? is H or C1-6 alkyl; R? is H, methyl, or ethyl; R?? is H, methyl, or ethyl; and at least one R? and R?? is H;


where x is 1 to 4; n is 1 to 10; R? is H or optionally substituted C1-6 alkyl; R? is H, methyl, or ethyl; R?? is H, methyl, or ethyl; and at least one R? and R?? is H;


where y is 1 to 4; n is 1 to 10; p is 1 to 3; R? is H or C1-6 alkyl; R? is H, methyl, or ethyl; R?? is H, methyl, or ethyl; and at least one R? and R?? is H;


where z is 1 to 4; n is 1 to 10; R? is H or optionally substituted C1-6 alkyl; R? is H, methyl, or ethyl; R?? is H, methyl, or ethyl; and at least one of R? and R?? is H; and


where z is 1 to 4; n is 1 to 10; p is 1 to 3; R? is H or optionally substituted C1-6 alkyl; R? is H, methyl, or ethyl; R?? is H, methyl, or ethyl; and at least one of R? and R?? is H.

US Pat. No. 9,850,901

COMPRESSOR SHELL ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:
a compression mechanism; and
a shell assembly housing said compression mechanism and including a body, an end cap, and a snap ring, said end cap at least
partially received into said body, said snap ring engaging said body and restricting removal of said end cap from said body,

wherein said body includes an inner surface disposed between a first end and a second end of said body and having an annular
groove, said snap ring partially received in said groove,

wherein said snap ring is resiliently movable between an uncompressed condition in which said snap ring has a first diameter
and a compressed condition in which said snap ring has a second diameter that is smaller than said first diameter,

wherein said body includes at least one releasing orifice providing access to said annular groove for releasing said snap
ring received within said annular groove.

US Pat. No. 9,853,588

MOTOR DRIVE CONTROL USING PULSE-WIDTH MODULATION PULSE SKIPPING

Emerson Climate Technolog...

1. A control circuit for a motor of a compressor, the control circuit comprising:
an inverter control module configured to control power switching devices of an inverter to generate output voltages from a
DC power supply, wherein the output voltages are applied to windings of the motor;

a current control module configured to generate voltage signals based on a torque demand, wherein the inverter control module
controls the power switching devices according to the voltage signals;

a selector configured to output one of an open loop torque value and a closed loop torque value as the torque demand; and
an open loop torque module configured to generate the open loop torque value, wherein the open loop torque module is configured
to apply an upper limit to the open loop torque value, and wherein the upper limit is based on a voltage of the DC power supply.

US Pat. No. 9,810,218

CRANKCASE HEATER SYSTEMS AND METHODS FOR VARIABLE SPEED COMPRESSORS

Emerson Climate Technolog...

1. A system comprising:
a compressor including a compression mechanism driven by an electric motor in an on state and not driven by the electric motor
in an off state;

a variable frequency drive that drives the electric motor in the on state by varying a frequency of a voltage delivered to
the electric motor and that supplies electric current to a stator of the electric motor in the off state to heat the compressor;

a compressor temperature sensor that generates a compressor temperature signal corresponding to a compressor temperature;
a control module connected to the variable frequency drive that controls a speed of the electric motor in the on state and
that controls the electric current supplied to the stator of the electric motor in the off state;

wherein the control module receives the compressor temperature signal, determines a desired compressor temperature, compares
the compressor temperature with the desired compressor temperature, and determines an amount of electric current to supply
to the stator in the off state based on the comparison.

US Pat. No. 9,695,823

COMPRESSOR WITH UNLOADER COUNTERWEIGHT ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:
a shell;
an orbiting scroll disposed within said shell and including a boss portion;
a driveshaft having an eccentric pin extending from a first end thereof, said driveshaft operable to rotate about a longitudinal
axis;

an unloader counterweight assembly having a first end, a second end, and a longitudinal opening extending from said first
end to said second end, wherein said eccentric pin is disposed within said longitudinal opening at said first end, and the
boss portion of said orbiting scroll is disposed within said longitudinal opening at said second end, and

a first planar sidewall, a second planar sidewall, and an arcuate sidewall, wherein said first planar sidewall and said second
planar sidewall define an angle therebetween, and wherein said arcuate sidewall traverses said angle and connects the first
planar sidewall and the second planar sidewall, the angle being less than 180 degrees such that the first planar sidewall
and the second planar sidewall define a wedge-shaped perimeter of the unloader counterweight assembly.

US Pat. No. 9,634,593

SYSTEM AND METHOD FOR PERMANENT MAGNET MOTOR CONTROL

Emerson Climate Technolog...

18. A control system for an electric motor, the control system comprising:
an estimator module that estimates derivatives of total flux linkages of the electric motor based on measured currents of
the electric motor, an output speed of the electric motor, a commanded speed for the electric motor, and voltage commands
for the electric motor; and

a rotor check module that:
commands operation of the electric motor in an open loop control mode at startup of the electric motor;
while the electric motor is in the open loop control mode, evaluates the derivatives of total flux linkages of the estimator
module;

in response to the evaluation of the derivatives of total flux linkages, determines whether the estimator module has converged;
and

in response to a determination that the estimator module has not converged within a predetermined period of time after starting
the electric motor, signals a first fault condition and at least one of: (i) shuts down the electric motor; and (ii) restarts
the electric motor.

US Pat. No. 9,605,676

VARIABLE SPEED SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:
a driveshaft;
an orbiting scroll member driven by said driveshaft and including a first member and a second member that are separate components,
said first member including an end plate and a spiral wrap extending from said end plate, said first member and said second
member cooperating to form a chamber therebetween, said chamber being disposed on an opposite side of said end plate than
said spiral wrap; and

a counterweight fixed for rotation with said driveshaft and received within said chamber of said orbiting scroll member.

US Pat. No. 9,562,709

COMPRESSOR COOLING SYSTEM

Emerson Climate Technolog...

1. A system comprising:
a compressor including a compression mechanism;
a heat exchanger receiving compressed working fluid from said compressor;
an expansion device disposed downstream of said heat exchanger;
a lubricant separator receiving lubricant and working fluid discharged from said compression mechanism and providing separated
lubricant to said compression mechanism;

a flow path receiving working fluid from said heat exchanger and providing working fluid to said heat exchanger, said flow
path extending between a first location disposed between said heat exchanger and said expansion device and a second location
disposed between said heat exchanger and said compressor, said working fluid from said flow path absorbing heat from said
separated lubricant;

a conduit extending from an outlet of said lubricant separator to an inlet of said heat exchanger, said flow path being fluidly
coupled with said conduit such that working fluid is transferred from said flow path to said conduit without flowing through
said compression mechanism, said conduit receiving all of the working fluid that enters said heat exchanger; and

a lubricant-injection flow path extending between said lubricant separator and a compression pocket of said compression mechanism
such that separated lubricant is injection into said compression pocket through a lubricant fitting of said compressor, said
compression pocket is disposed between and defined by first and second compression members and decreases in volume during
operation of the compression mechanism.

US Pat. No. 9,929,497

PLUG ASSEMBLY FOR A COMPRESSOR INCLUDING A CONDUIT ADAPTOR

Emerson Climate Technolog...

1. An assembly comprising:a plug body encasing a plurality of electrical receptacles and first ends of a plurality of wires electrically connected to the electrical receptacles, the plug body including a threaded coupling unitary therewith;
a conduit adapter including a first threaded surface for engagement with the threaded coupling, and a second threaded surface; and
a threaded conduit engaging the second threaded surface to allow the plurality of wires to extend from the plug body, through the conduit adapter, and into the threaded conduit.

US Pat. No. 9,885,347

COMPONENTS FOR COMPRESSORS HAVING ELECTROLESS COATINGS ON WEAR SURFACES

Emerson Climate Technolog...

1. A compressor comprising:
a compressor component having at least one wear surface comprising aluminum with an electroless surface coating comprising
nickel disposed directly thereon, the electroless surface coating having a hardness of greater than or equal to about 40 to
less than or equal to about 63 on a Rockwell C Hardness Scale, wherein the compressor is configured to process a refrigerant
selected from the group: carbon dioxide, propane, and combinations thereof, wherein the compressor component having the at
least one wear surface with the electroless surface coating withstands greater than or equal to about 1,000 hours of compressor
operation.

US Pat. No. 9,879,673

SCROLL COMPRESSOR

Emerson Climate Technolog...

30. A scroll comprising:
a fixed scroll comprising a fixed scroll end plate and a fixed scroll wrap formed on one side of the fixed scroll end plate;
a movable scroll comprising a movable scroll end plate, a movable scroll wrap formed on one side of the movable scroll end
plate and a hub portion formed on the other side of the movable scroll end plate;

a driving shaft comprising an eccentric crank pin, the eccentric crank pin being fitted in the hub portion of the movable
scroll to drive the movable scroll; and

a movable scroll counterweight configured to be able to rotate with the driving shaft and to generate a centrifugal force
by rotation which acts on the hub portion of the movable scroll;

wherein the movable scroll counterweight comprises a cylindrical portion, the cylindrical portion is provided around the hub
portion of the movable scroll, and wherein a bearing is provided in the cylindrical portion of the movable scroll counterweight,
and an inner side of the bearing contacts the outer side of the hub portion; and

wherein a driving portion for driving the movable scroll counterweight to rotate is provided on an outer peripheral surface
of the driving shaft, the movable scroll counterweight comprises a bottom wall, and a driving hole for being engaged with
the driving portion to enable the rotation of the movable scroll counterweight together with the driving shaft, the driving
hole being provided in the bottom wall.

US Pat. No. 9,705,433

CONTROLLER AND METHOD FOR TRANSITIONING BETWEEN CONTROL ANGLES

Emerson Climate Technolog...

12. A control method for a motor in a refrigeration system, the method comprising:
generating an output rotor angle indicative of a desired angle of a rotor of the motor;
controlling current supplied to the motor based on the output rotor angle; and
determining an estimated rotor angle of the motor,
wherein the generating the output rotor angle includes:
upon startup of the motor, generating the output rotor angle based on a first rotor angle,
upon generation of a transition signal, generate the output rotor angle based on both (i) the first rotor angle and (ii) the
estimated rotor angle, and

subsequent to generation of the transition signal, reduce a contribution of the first rotor angle to the output rotor angle
over time until the output rotor angle is based on the estimated rotor angle independent of the first rotor angle.

US Pat. No. 9,690,307

METHOD AND APPARATUS FOR MONITORING REFRIGERATION-CYCLE SYSTEMS

Emerson Climate Technolog...

1. A monitoring system for a heating, ventilation, or air conditioning (HVAC) system of a residential or commercial building,
the monitoring system comprising:
an evaporator unit device including a first current sensor that measures current supplied to a circulator blower of the HVAC
system, wherein the measured current from the first current sensor is used to diagnose a problem with the circulator blower;

a first temperature sensor that measures a temperature of refrigerant flowing between a condenser of the HVAC system and an
expansion valve of the HVAC system;

a second temperature sensor that measures a temperature of refrigerant flowing between an evaporator of the HVAC system and
a compressor of the HVAC system; and

a condenser unit device that communicates with the evaporator unit device, wherein the condenser unit device includes a second
current sensor that measures current supplied to the compressor,

wherein the evaporator unit device transmits sensor data to a remote monitoring service over a data network.

US Pat. No. 9,638,036

SCROLL COMPRESSOR INCLUDING OLDHAM COUPLING HAVING KEYS THAT ARE SLIDINGLY RECEIVED IN SLOTS OF A NON-ORBITING SCROLL AND/OR AN ORBITING SCROLL

Emerson Climate Technolog...

1. A compression mechanism comprising:
an orbiting scroll member including a base plate;
a non-orbiting scroll member meshingly engaged with the orbiting scroll member, the non-orbiting scroll member including a
first radially extending slot; and

an Oldham coupling including a ring portion disposed about the base plate and a first radially extending key portion disposed
in the first radially extending slot, the ring portion having a first upper surface and a first lower surface, and the key
portion having a second upper surface and a second lower surface, wherein at least one of:

the second upper surface is coplanar with the first upper surface; and
the second lower surface is coplanar with the first lower surface.

US Pat. No. 9,857,114

CONTROLLING CHILLED STATE OF A CARGO

THERMO KING CORPORATION, ...

1. A method for operating a refrigeration system for a refrigerated container, the method comprising:
determining a supply air temperature of a supply air discharged by the refrigeration system within the refrigerated container;
determining a return air temperature;
determining one of a requirement for heating and a requirement for cooling based the return air temperature and on the supply
air temperature;

activating an evaporator fan of the refrigeration system when a requirement for heating is determined and increasing the speed
of the evaporator fan when increased heating is determined; and

activating a compressor of the refrigeration system and the evaporator fan when a requirement for cooling is determined and
increasing a power supplied to the compressor and maintaining the evaporator fan at a first speed when increased cooling is
determined.

US Pat. No. 9,651,043

COMPRESSOR VALVE SYSTEM AND ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:
a first scroll member including a first scroll wrap extending from a first end plate;
a second scroll member including a second scroll wrap extending from a second end plate, a port, and a passage, said second
scroll wrap being intermeshed with said first scroll wrap, said first and second scroll members defining a suction inlet,
a discharge outlet and fluid pockets moving between said suction inlet and said discharge outlet, said port being in fluid
communication with at least one of said fluid pockets, said passage extending through a portion of said second end plate and
in fluid communication with said port and a discharge passage, said discharge passage extending axially through said second
end plate and in fluid communication with said discharge outlet, said port disposed radially outward relative to said discharge
passage and said discharge outlet;

a valve assembly disposed in said passage and including a valve member displaceable between an open position allowing fluid
communication between said port and said discharge passage and a closed position restricting fluid communication between said
port and said discharge passage; and

a recompression volume disposed within said port between said valve member and said at least one of said pockets, said recompression
volume being less than or equal to approximately one percent of a volume of one of said pockets at a suction seal-off position.

US Pat. No. 9,581,161

COMPRESSOR WITH SERVICE VALVE ASSEMBLY

Emerson Climate Technolog...

1. A scroll machine comprising:
a shell;
a first scroll member disposed in the shell and having a first spiral wrap;
a second scroll member disposed in the shell and having a second spiral wrap, the second spiral wrap being intermeshed with
the first spiral wrap;

a valve assembly that permits intermediate pressure in the shell to flow to an area of suction pressure in the shell, the
valve assembly comprising:

a first valve manifold that selectively couples to the shell;
a second valve manifold that is slidably and non-threadably positioned surrounding the first valve manifold;
a retainer that is directly coupled to the first valve manifold to capture the second valve manifold against the first valve
manifold; and

a valve that selectively connects an intermediate flow exiting the shell through the first and second valve manifolds and
to a suction flow entering the shell.

US Pat. No. 9,965,928

SYSTEM AND METHOD FOR DISPLAYING MESSAGES IN A COLUMN-BY-COLUMN FORMAT VIA AN ARRAY OF LEDS CONNECTED TO A CIRCUIT OF A COMPRESSOR

Emerson Climate Technolog...

1. An indication system comprising:an evaluation module configured to generate a message based on a parameter of a compressor or a drive of the compressor;
a messaging module configured to
generate a first message based on the parameter,
generate a string of glyphs based on the first message,
select a predetermined number of glyphs in the string of glyphs,
generate column data for the selected predetermined number of glyphs, and
generate packets including the column data;
a display module configured to (i) receive the packets via an interface, and (ii) generate output signals based on the packets; and
a display comprising an array of light emitting diodes (LEDs), wherein the display does not include a transistor, wherein the display is configured to receive the output signals and illuminate the LEDs of the display based on the output signals, and
wherein the display module is configured to generate the output signals to illuminate one or more of the LEDS of the display in a column-by-column format, such that power is only provided to one column of the array of LEDs at any moment in time.

US Pat. No. 9,957,963

POWDER METAL SCROLLS WITH MODIFIED TIP DESIGNS

Emerson Climate Technolog...

1. A scroll member comprising:an involute scroll portion and a baseplate portion comprising a sintered powder metal material, wherein said involute scroll portion defines a terminal end region defining an as-sintered coupling feature and comprises a tip component in the form of a tip seal that forms a contact surface for contacting an opposing scroll member during compressor operation, wherein the as-sintered coupling feature comprises a protruding ridge or flange having a tip cap that is sinter-bonded to the protruding ridge or flange, wherein the tip cap comprises a groove that receives the tip component.

US Pat. No. 9,897,088

SCROLL COMPRESSOR WITH BACK PRESSURE CHAMBER HAVING LEAKAGE CHANNEL

Emerson Climate Technolog...

1. A scroll compressor, comprising:
an orbiting scroll component, wherein the orbiting scroll component comprises an orbiting scroll end plate, and a spiral orbiting
scroll vane formed at one side of the orbiting scroll end plate;

a non-orbiting scroll component, wherein the non-orbiting scroll component comprises a non-orbiting scroll end plate, a spiral
non-orbiting scroll vane formed at one side of the non-orbiting scroll end plate, and a concave portion formed at the other
side of the non-orbiting scroll end plate, and wherein the concave portion is in fluid communication with one of a series
of compression chambers formed between the orbiting scroll vane and the non-orbiting scroll vane via a medium pressure channel;

a seal assembly, wherein the seal assembly is fitted with the concave portion to jointly form a back pressure chamber, and
wherein the seal assembly is configured to separate the back pressure chamber from a high-pressure side and a low-pressure
side in the scroll compressor; and

a leakage channel configured to allow fluid in the back pressure chamber to leak to the high-pressure side,
wherein the seal assembly comprises: a first seal member configured to prevent the fluid at the high-pressure side from flowing
to the back pressure chamber but allow the fluid in the back pressure chamber to flow to the high-pressure side; and a second
seal member configured to prevent the fluid in the back pressure chamber from flowing to the high-pressure side but allow
the fluid at the high-pressure side to flow to the back pressure chamber, and

the leakage channel is formed in the second seal member.

US Pat. No. 9,850,903

CAPACITY MODULATED SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A system including a compressor, the compressor comprising:
an orbiting scroll member having a first end plate and a first spiral wrap;
a non-orbiting scroll member having a second end plate and a second spiral wrap, wherein the second spiral wrap forms a meshing
engagement with the first spiral wrap to create a plurality of compression chambers between a suction port and a discharge
port of the orbiting scroll member and the non-orbiting scroll member;

a first port in communication with a first of the plurality of compression chambers and selectively injecting an injection
fluid into the first of the plurality of compression chambers to increase a compressor capacity and selectively leaking a
first compressed fluid from the first of the plurality of compression chambers to reduce the compressor capacity;

a second port in communication with a second of the plurality of compression chambers and selectively leaking a second compressed
fluid from the second of the plurality of compression chambers to reduce a compressor capacity;

a first passage in communication with the first port and a first fitting to transport fluid between the first of the plurality
of compression chambers and the first fitting; and

a second passage in communication with the second port and a second fitting to transport the second compressed fluid from
the second of the at least one compression chamber.

US Pat. No. 9,803,902

SYSTEM FOR REFRIGERANT CHARGE VERIFICATION USING TWO CONDENSER COIL TEMPERATURES

Emerson Climate Technolog...

1. A charge-verification system for a circuit including a compressor and a condenser having an inlet, an outlet, and a coil
circuit tube extending between the inlet and the outlet, the charge-verification system comprising:
a first temperature sensor located on said coil circuit tube a first distance from said inlet;
a second temperature sensor located on said coil circuit tube a second distance from said inlet;
a controller receiving a first signal from said first temperature sensor indicative of a first temperature and receiving a
second signal from said second temperature sensor indicative of a second temperature, said controller determining which of
said first signal and said second signal is closer to an actual saturated condensing temperature of the condenser; and

a liquid line temperature sensor providing a signal to said controller indicative of a liquid temperature of a liquid circulating
within the circuit,

wherein said controller controls the compressor based on one of said first signal and said second signal, and
said controller determines a charge condition based on a comparison of at least two of the first temperature, the second temperature,
and the liquid temperature.

US Pat. No. 9,739,277

CAPACITY-MODULATED SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:
a first scroll member having an end plate and a spiral wrap extending from said end plate, said end plate including a first
modulation port and a second modulation port each in fluid communication with a compression pocket formed by said spiral wrap;

a first modulation valve ring movable relative to said end plate between a first position blocking said first modulation port
and a second position spaced apart from said first modulation port; and

a second modulation valve ring movable relative to said end plate between a first position blocking said second modulation
port and a second position spaced apart from said second modulation port, said second modulation ring located radially inward
from said first modulation valve ring.

US Pat. No. 9,669,498

COMPRESSOR DIAGNOSTIC AND PROTECTION SYSTEM AND METHOD

Emerson Climate Technolog...

1. A method comprising:
installing at least one component in a refrigeration system;
operating the refrigeration system for a predetermined time period;
receiving, with processing circuitry, a compressor current of a compressor of the refrigeration system from a compressor current
sensor during the predetermined time period;

receiving, with the processing circuitry, a compressor voltage of the compressor from a compressor voltage sensor during the
predetermined time period;

receiving, with the processing circuitry, an ambient temperature with an ambient temperature sensor during the predetermined
time period;

determining, with the processing circuitry, a condenser temperature based on the compressor current and the compressor voltage;
determining, with the processing circuitry, a condenser temperature difference based on the condenser temperature and the
ambient temperature;

comparing, with the processing circuitry, the condenser temperature difference with a first predetermined range having a high
condenser temperature difference threshold and a low condenser temperature difference threshold; and

completing installation of the at least one component in response to the condenser temperature difference being between the
high condenser temperature difference threshold and the low condenser temperature difference threshold.

US Pat. No. 9,605,677

ANTI-WEAR COATINGS FOR SCROLL COMPRESSOR WEAR SURFACES

Emerson Climate Technolog...

1. A scroll compressor component comprising:
an anti-wear coating disposed directly on at least a portion of a metal wear surface of the compressor component, the anti-wear
coating having a thickness of less than or equal to about 0.005 inches (about 127 ?m), wherein the anti-wear coating comprises
a thermoplastic polymer, a first lubricant particle comprising molybdenum disulfide (MoS2), and a second lubricant particle comprising polytetrafluoroethylene (PTFE), and wherein the scroll compressor component
is selected from the group consisting of: a face seal, a drive flat on a crankshaft, a main journal bearing on a crankshaft,
a lower journal bearing on a crankshaft, a slider block, a drive flat on a bushing, an outer diameter of a bushing, an Oldham
coupling, an upper seal plate of a seal assembly, a thrust plate, an orbiting scroll, a non-orbiting scroll, a thrust bearing
surface on a main bearing housing, a lower bearing plate assembly, an Oldham sliding area on a main bearing housing, and combinations
thereof.

US Pat. No. 9,557,389

THREE-PHASE DETECTION MODULE

Emerson Climate Technolog...

1. A monitoring apparatus connected, in parallel with a motor, to a plurality of power supply lines, each of the plurality
of power supply lines having a different phase, the monitoring apparatus comprising:
a first isolator configured to, in response to a first control signal, selectively allow a first current to flow from a first
power supply line of the plurality of power supply lines to a second power supply line of the plurality of power supply lines
through a third isolator, wherein the first current is electrically isolated from the first control signal;

a second isolator configured to, in response to a second control signal, selectively allow a second current to flow from the
second power supply line of the plurality of power supply lines to a third power supply line of the plurality of power supply
lines through the third isolator, wherein the second current is electrically isolated from the second control signal; and

a control module configured to:
generate the first control signal to control the first isolator,
generate the second control signal to control the second isolator,
receive a first signal corresponding to a total current flowing through the third isolator, wherein the total current includes
both the first current and the second current, and

selectively generate a phase failure signal in response to the first signal indicating that a failure of at least one of the
plurality of power supply lines has occurred.

US Pat. No. 10,094,380

COMPRESSOR

Emerson Climate Technolog...

18. A compressor comprising:a shell;
a first scroll member disposed within said shell and including a first end plate defining first and second sides opposite one another, a primary discharge passage extending through said first and second sides, a secondary discharge passage extending through said first and second sides and located radially outward from said primary discharge passage, and a first spiral wrap extending from said first side;
a second scroll member including a second end plate having a second spiral wrap extending therefrom and meshingly engaged with said first spiral wrap to form compression pockets; and
a hub plate mounted to said first scroll member and including first and second sides opposite one another and having a hub discharge passage extending therethrough and in fluid communication with said primary discharge passage, said first side of said hub plate facing said second side of said first end plate and including a valve guide disposed adjacent said hub discharge passage and extending axially toward said first spiral wrap; and
a valve member retained by said valve guide for axial movement between open and closed positions, said valve member closing said secondary discharge passage when in the closed position to restrict fluid communication between said secondary discharge passage and said hub discharge passage and axially spaced from said secondary discharge passage when in the open position to allow fluid communication between said secondary discharge passage and said hub discharge passage;
wherein said second side of said hub plate includes an annular central hub surrounding said hub discharge passage and an annular rim surrounding said annular central hub and defining an annular chamber therebetween,
wherein said second side of said first end plate includes a recess surrounding said primary discharge passage, said valve member abutting an end surface of said recess in the closed position and spaced apart from the end surface of said recess in the open position, said recess defining a fluid passageway extending radially through said valve guide, said secondary discharge passage being in fluid communication with said primary discharge passage via said fluid passageway when said valve member is in the open position.

US Pat. No. 10,047,987

COMPRESSOR COOLING SYSTEM

Emerson Climate Technolog...

1. A system comprising:a compressor including first and second inlets and an outlet;
a first heat exchanger receiving compressed working fluid from said outlet of said compressor;
an expansion device disposed downstream of said first heat exchanger;
a first working fluid flow path fluidly connecting said first heat exchanger and said expansion device;
a second working fluid flow path fluidly connecting said first heat exchanger with said first inlet of said compressor, said first inlet fluidly isolated from a compression chamber of said compressor while providing working fluid to a motor disposed in a discharge chamber of said compressor, wherein said first inlet provides working fluid to said motor by providing working fluid directly from said first inlet to said discharge chamber in which said motor is disposed;
a second heat exchanger receiving working fluid from said expansion device and providing working fluid to said second inlet of said compressor; and
a pump disposed between said first heat exchanger and said expansion device, said pump including an inlet and first and second outlets, said first outlet fluidly connected to said first working fluid flow path, said second outlet fluidly connected to said second working fluid flow path.

US Pat. No. 9,976,554

CAPACITY-MODULATED SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:a first scroll member having an end plate and a spiral wrap extending from said end plate, said end plate including a first modulation port and a second modulation port each in fluid communication with a compression pocket formed by said spiral wrap;
a first modulation valve movable relative to said end plate between a first position blocking said first modulation port and a second position spaced apart from said first modulation port, wherein a first intermediate pressure and a suction pressure act on the first modulation valve to urge the first modulation valve toward the end plate in the first position and a second intermediate pressure acts on the first modulation valve to urge the first modulation valve away from the end plate in the second position; and
a second modulation valve movable relative to said end plate between a first position blocking said second modulation port and a second position spaced apart from said second modulation port, wherein a first axial force urges the second modulation valve axially away from said end plate and into said second position and second intermediate pressure urges said second modulation valve toward said end plate in said first position.

US Pat. No. 9,879,894

COMPRESSOR CRANKCASE HEATING CONTROL SYSTEMS AND METHODS

Emerson Climate Technolog...

1. A compressor crankcase heating control method for a heat pump system, the compressor crankcase heating control method comprising:
selectively actuating a first switching device to connect and disconnect first and second power lines to and from second and
third switching devices, respectively,

the first and second power lines configured to receive a first voltage; and
when the first and second power lines are disconnected from the second and third switching devices via the first switching
device, actuating the second and third switching devices thereby connecting third and fourth power lines to ends, respectively,
of at least one winding of a stator of an electric motor of a compressor,

the at least one winding of the stator of the electric motor configured to heat the crankcase of the compressor, and
the third and fourth power lines configured to receive a second voltage that is less than the first voltage.

US Pat. No. 9,863,421

PULSATION DAMPENING ASSEMBLY

Emerson Climate Technolog...

1. A pulsation dampening assembly for compressors, said pulsation dampening assembly adapted to be disposed in an outlet port
configured in a housing of a compressor for supplying compressed refrigerant outside the compressor, said assembly comprising:
an insert adapted to be attached to the outlet port, said insert comprising a base, a wall extending from said base, and a
through-hole defined by a first diameter portion and a second diameter portion of said wall, wherein said first diameter portion
comprises a plurality of first apertures located adjacent to said second diameter portion, said base abutting the housing
of the compressor when said insert is attached within the outlet port;

a first helical spring and a second helical spring co-axially spaced apart within said through-hole of said insert; and
a pulsating disc positioned between said first and second helical springs in said through-hole, said disc comprising:
a cylindrically shaped lower portion having an open bottom end for facilitating entry of compressed refrigerant in said lower
portion and a plurality of second apertures in a wall of said lower portion, each second aperture and each first aperture
facilitating exit of compressed refrigerant from said lower portion;

a flange integral with said cylindrically shaped lower portion and located on a top end of said cylindrically shaped lower
portion whereby a bottom surface of said flange seals said top end, said flange comprising a plurality of recesses equidistantly
located along a periphery of said flange, a location of each recess corresponding to a location of each second aperture for
facilitating passage of compressed refrigerant exiting said second apertures; and

a spring supporter integral to said flange and located on a top surface of said flange, said supporter adapted to facilitate
said first helical spring to rest on said top surface;

wherein said pulsation dampening assembly is adapted to be displaceably configured between an operative state wherein said
first apertures and said second apertures are aligned to facilitate exit of compressed refrigerant and an inoperative state
wherein said first apertures and said second apertures are not aligned.

US Pat. No. 9,823,632

COMPRESSOR DATA MODULE

Emerson Climate Technolog...

10. A refrigeration system comprising:
a compressor including a shell, a compression mechanism, and a motor;
a data module including a data module processor and a data module memory, said data module being configured to receive sensed
data, store said sensed data in said data module memory, and determine a first diagnosis of at least one of the refrigeration
system and said compressor based on said sensed data; and

a compressor controller including a controller processor and a controller memory distinct from said data module processor
and said data module memory, said compressor controller being configured to determine a second diagnosis of at least one of
the refrigeration system and said compressor based on said sensed data and verify said first diagnosis by comparing said first
diagnosis to said second diagnosis.

US Pat. No. 10,041,487

COMPRESSOR ASSEMBLY WITH LIQUID SENSOR

Emerson Climate Technolog...

1. A compressor comprising:a shell defining a chamber;
a compression mechanism disposed within the chamber and operable to compress a working fluid; and
a sensor assembly including a first sensor, a second sensor, and a sensor housing, the first and second sensors are disposed at least partially inside of the chamber and are supported by the sensor housing, the sensor housing is mounted to the shell and is at least partially disposed outside of the shell,
wherein the sensor housing includes a hub, a conduit, a first casing and a second casing, the hub sealingly engaging the shell, the conduit extending radially inward into the compressor from the hub and receiving wires connected to the first and second sensors, the first casing extending axially upward from the conduit and receiving one of the first and second sensors, the second casing extending axially downward from the conduit and receiving the other of the first and second sensors.

US Pat. No. 10,024,321

DIAGNOSTIC SYSTEM

Emerson Climate Technolog...

1. A compressor comprising a shell, a compression mechanism, a motor, and a diagnostic system for determining non-severe fault conditions where continued operation of the compressor is permitted by said diagnostic system and severe fault conditions where operation of the compressor is stopped by said diagnostic system, said diagnostic system including a processor and a memory and operable to predict said severe fault conditions before occurrence of said severe fault conditions based on an order of a sequence of historical fault events and a combination of the types of said historical fault events, said historical fault events being determined based on compressor run time and at least one of a state of a motor protector, a low-pressure cutout switch, and a high-pressure cutout switch.

US Pat. No. 9,938,977

COMPRESSOR WITH OIL PUMP ASSEMBLY

Emerson Climate Technolog...

1. compressor comprising:a shell;
a motor assembly disposed within the shell;
a driveshaft drivingly engaged with the motor assembly;
a compression mechanism driven by the driveshaft;
a pump housing rotatably supported by the driveshaft for rotation relative to the driveshaft and relative to the shell; and
a pumping mechanism disposed within the pump housing and in driving engagement with the driveshaft.

US Pat. No. 9,912,263

CONTROLLER AND METHOD FOR TRANSITIONING BETWEEN CONTROL ANGLES

Emerson Climate Technolog...

12. A control method for a motor in a refrigeration system, the method comprising:
generating an output rotor angle indicative of a desired angle of a rotor of the motor;
controlling current supplied to the motor based on the output rotor angle;
determining an estimated rotor angle of the motor; and
generating a transition signal in response to convergence of the estimated rotor angle,
wherein the generating the output rotor angle includes:
upon startup of the motor, generating the output rotor angle based on a first rotor angle,
upon generation of the transition signal, generate the output rotor angle based on both (i) the first rotor angle and (ii)
the estimated rotor angle, and

subsequent to generation of the transition signal, reduce a contribution of the first rotor angle to the output rotor angle
over time until the output rotor angle is based on the estimated rotor angle independent of the first rotor angle.

US Pat. No. 9,851,135

COMPRESSOR CRANKCASE HEATING CONTROL SYSTEMS AND METHODS

Emerson Climate Technolog...

1. A crankcase heating control system for a heat pump system, the crankcase heating control system comprising:
a data receiving module that receives data indicative of a temperature of a compressor of the heat pump system, data indicative
of an ambient temperature, and data indicative of a current date and a current time; and

a power control module that selectively applies power to a heater of a crankcase of the compressor and that selectively disables
the heater based on the temperature of the compressor, the ambient temperature, the current date, and the current time including
selectively disabling the heater when the ambient temperature is less than a predetermined temperature.

US Pat. No. 9,784,274

COMPRESSOR ASSEMBLY WITH LIQUID SENSOR

Emerson Climate Technolog...

1. A compressor comprising:
a shell defining a chamber;
a compression mechanism disposed within the chamber and operable to compress a working fluid; and
a sensor assembly disposed within the chamber and including a sensor and a casing, the casing defining a plurality of openings
and a cavity, the sensor is disposed within the cavity, one of the openings provides fluid communication between the chamber
and the cavity and extends through a first exterior surface of the casing, another of the openings provides fluid communication
between the chamber and the cavity and extends through a second exterior surface of the casing,

wherein the casing includes a baffle defining the cavity and partially shielding the cavity from one of the openings,
wherein the casing includes a fluid passageway in communication with the cavity and one of the openings, and wherein the sensor
is disposed between the baffle and the fluid passageway,

wherein the casing includes a first casing body and a second casing body that releasably engage each other, and wherein the
fluid passageway is formed in the first casing body, and the baffle is a part of the second casing body, and

wherein the first casing body includes an inclined surface that separates the fluid passageway from the cavity.

US Pat. No. 9,762,168

COMPRESSOR HAVING A CONTROL AND DIAGNOSTIC MODULE

Emerson Climate Technolog...

1. A method of operating a refrigeration system including a compressor and a capacitor electrically coupled to the compressor,
the method comprising:
measuring, with a voltage sensor, a plurality of voltage values based on alternating current power powering the compressor;
measuring, with a current sensor, a plurality of current values based on the alternating current power;
determining, with a controller in communication with the voltage sensor and the current sensor, a power factor value based
on at least one of the plurality of voltage values and at least one of the plurality of current values;

receiving a supply air temperature value from a supply air temperature sensor installed in the refrigeration system;
receiving a return air temperature value from a return air temperature sensor installed in the refrigeration system;
determining, with the controller, a temperature split based on a difference between the return air temperature value and the
supply air temperature value;

determining, with the controller, a fault in the capacitor based on the power factor value and the temperature split; and
selectively communicating the fault in the capacitor from the controller to at least one of a user, a service person, a system
controller, a remote server, a thermostat, a mobile device, and an email address.

US Pat. No. 9,709,311

SYSTEM AND METHOD OF CONTROLLING A VARIABLE-CAPACITY COMPRESSOR

Emerson Climate Technolog...

1. A climate-control system comprising a variable-capacity compressor unit and a control module controlling the compressor
unit, the compressor unit operable in a first capacity mode and in a second capacity mode that is higher than the first capacity
mode, the control module configured to switch the compressor unit between the first capacity mode and the second capacity
mode based on a demand signal, a current outdoor air temperature, and an outdoor-air-temperature slope.

US Pat. No. 9,611,849

SYSTEM INCLUDING HIGH-SIDE AND LOW-SIDE COMPRESSORS

Emerson Climate Technolog...

1. A system operable to circulate fluid between first and second heat exchangers and including a suction line, a low-side
compressor, a high-side compressor and a discharge line, said low-side and high-side compressors both being in fluid communication
with said suction and discharge lines, wherein said high-side compressor includes a first shell assembly having first and
second inlets, said first inlet receiving fluid from said low-side compressor at a first pressure, said second inlet receiving
fluid discharged from said low-side compressor at a second pressure that is higher than said first pressure,
wherein said high-side compressor includes a first compression mechanism, said first shell assembly defining a first discharge-pressure
chamber, said first compression mechanism is disposed within said first discharge-pressure chamber, and wherein said low-side
compressor includes a second shell assembly and a second compression mechanism, said second shell assembly defining a suction-pressure
chamber and a second discharge-pressure chamber, said second compression mechanism is disposed within said suction-pressure
chamber,

wherein said second shell assembly includes a third inlet, a discharge-fluid outlet and a suction-fluid outlet, wherein said
third inlet and said suction-fluid outlet are in fluid communication with said suction-pressure chamber, and wherein said
discharge-fluid outlet is in fluid communication with said second discharge-pressure chamber.

US Pat. No. 10,094,600

COMPRESSOR ASSEMBLY WITH DIRECTED SUCTION

Emerson Climate Technolog...

9. A compressor comprising:a shell assembly having an opening through which fluid is received from outside of the compressor;
a suction fitting attached to said shell assembly at said opening;
a compression mechanism disposed within a chamber defined by said shell assembly; and
a conduit extending through said chamber and aligned with a suction inlet of said compression mechanism and transmitting a portion of said fluid received from outside of the compressor to said suction inlet, said conduit spaced apart from said opening and said shell assembly such that said conduit does not physically contact said shell assembly or said suction fitting, said conduit including an outlet adjacent said compression mechanism, said outlet including a centerline extending through a spiral wrap of said compression mechanism.

US Pat. No. 10,087,936

COMPRESSOR HAVING CAPACITY MODULATION SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:a shell assembly defining a suction-pressure region and a discharge-pressure region, the shell assembly including a partition separating the suction-pressure region from the discharge-pressure region;
a first scroll member disposed within the shell assembly and including a first end plate having a discharge passage, a modulation port, a biasing passage, and a first spiral wrap extending from the first end plate;
a second scroll member disposed within the shell assembly and including a second end plate having a second spiral wrap extending therefrom, the first and second spiral wraps meshingly engaged and forming a series of pockets during orbital displacement of the second scroll member relative to the first scroll member, the modulation port in communication with a first one of the pockets, the biasing passage in communication with a second one of the pockets;
a floating seal assembly engaged with the partition and the first scroll member and isolating the discharge-pressure region from the suction-pressure region; and
a modulation valve ring located axially between the floating seal assembly and the first end plate and being in sealing engagement with an outer radial surface of a hub extending from the first end plate and an outer radial surface of the floating seal assembly to define an axial biasing chamber in fluid communication with the biasing passage, the modulation valve ring being axially displaceable between first and second positions, the modulation valve ring abutting the first end plate and closing the modulation port when in the first position, the modulation valve ring abutting an axially-facing surface of the floating seal assembly and spaced apart from the first end plate to open the modulation port when in the second position,
wherein the modulation port is located at a first wrap angle from a suction seal-off location, and the biasing passage is located at a second wrap angle from the suction seal-off location, and wherein a ratio of the first angle to the second angle is between 0.65 and 0.75.

US Pat. No. 10,006,287

COMPRESSOR SHELL ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:a compression mechanism; and
a shell assembly housing said compression mechanism and including a body, an end cap, and an alignment feature, said end cap including a first threaded portion disposed on an inner surface of said end cap and threadably engaging a second threaded portion disposed on an outer surface of said body, wherein said alignment feature is an annular collar extending from an outer surface of said end cap and contacting said outer surface of said body.

US Pat. No. 9,989,057

VARIABLE VOLUME RATIO SCROLL COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:a scroll member including an end plate and a wrap extending from the end plate, the end plate including a recess, a discharge passage in fluid communication with the recess, and a bypass passage in fluid communication with the recess and disposed radially outward relative to the discharge passage;
a hub received in the recess and including a central opening in fluid communication with the discharge passage and the bypass passage;
a discharge valve disposed between the hub and the end plate and controlling fluid flow through the discharge passage; and
a bypass valve disposed between the hub and the end plate and movable between a first position restricting fluid flow through the bypass passage and a second position allowing fluid to flow through the bypass passage, around the discharge valve and through the central opening,
wherein the bypass valve is disposed within the recess such that the bypass passage is open to the recess when the bypass valve is in the second position, and
wherein the bypass valve includes a valve retainer engaging a reed valve member and defining the second position of the bypass valve.

US Pat. No. 9,933,842

MICROCONTROLLER ARCHITECTURE FOR POWER FACTOR CORRECTION CONVERTER

Emerson Climate Technolog...

1. A circuit for driving a motor of a compressor, the circuit comprising:a microcontroller comprising an operational amplifier, a comparator, a first serial interface, and a first dedicated pin, wherein:
the operational amplifier is configured to amplify a value representative of a current in a power factor correction (PFC) converter;
the comparator is configured to compare the amplified value to a reference value and assert a comparison signal in response to the amplified value exceeding the reference value; and
the comparison signal is output on the first dedicated pin;
a programmable logic device comprising a second serial interface in communication with the first serial interface and a second dedicated pin, wherein the comparison signal is received on the second dedicated pin and wherein the programmable logic device is configured to:
receive control messages from the microcontroller via the second serial interface;
in response to receiving a first control message from the microcontroller, set a value in an off-time register based on data in the first control message;
control a power switch of the PFC converter to turn off in response to the comparison signal being asserted;
subsequent to controlling the power switch to turn off, wait for a period of time determined by the off-time register and then control the power switch to turn on;
measure a turn-on delay of the power switch; and
repeat the control, the wait, and the measure.

US Pat. No. 9,991,834

SYSTEM AND METHOD FOR PERMANENT MAGNET MOTOR CONTROL

Emerson Climate Technolog...

1. A system comprising:a bulk current determination module that determines a bulk current based on a Q-axis current of an electric motor and a d-axis current of the electric motor determined based on measured currents of the electric motor;
a resistance determination module that determines a d-axis resistance of the electric motor and a Q-axis resistance of the electric motor as a function of the bulk current;
an inductance determination module that determines a d-axis inductance of the electric motor and a Q-axis inductance of the electric motor as a function of the bulk current;
a flux estimation module that generates an estimated flux of the electric motor based on the d-axis resistance of the electric motor, the Q-axis resistance of the electric motor, the d-axis inductance of the electric motor, and the Q-axis inductance of the electric motor;
an angle estimation module that generates an estimated angle of the electric motor based on the estimated flux of the electric motor; and
a pulse-width modulation (PWM) module that, based on the estimated angle of the electric motor, controls switching of an inverter that powers the electric motor.

US Pat. No. 9,964,122

COMPRESSOR STAKING ARRANGEMENT AND METHOD

Emerson Climate Technolog...

1. A compressor comprising:a shell having an inner surface and an outer surface; and
a bearing housing disposed within said shell and including an engagement surface opposing said inner surface, said engagement surface including a first channel and a second channel in communication with said first channel, said first channel extending further in a first direction than in a second direction such that a longitudinal axis of said first channel extends in said first direction without intersecting a longitudinal axis of said shell, said second channel extends from said first channel in said second direction, said first direction is substantially perpendicular to said longitudinal axis of said shell, said second direction is substantially parallel to said longitudinal axis of said shell, said first channel and said second channel receiving a deformed portion of said shell therein to fix a position of said bearing housing relative to said shell, wherein a maximum span of said first channel in said first direction is greater than a maximum span of said second channel in said first direction.

US Pat. No. 9,941,688

COMPRESSOR PROTECTION AND GRID FAULT DETECTION DEVICE

Emerson Climate Technolog...

1. A method of operating a refrigeration system that receives power from an electrical grid, the method comprising:selectively operating at least one component of the refrigeration system in a first state;
selectively detecting a fault event of the electrical grid in response to a concurrent (i) increase in amount of current drawn by the at least one component and (ii) decrease in voltage of power received by the at least one component;
in response to detecting the fault event, switching the at least one component from the first state to a second state, wherein the at least one component consumes less power in the second state than in the first state;
determining a first delay period;
identifying a conclusion of the fault event; and
in response to the conclusion of the fault event, waiting for the first delay period before switching the at least one component back to the first state.

US Pat. No. 9,876,346

SYSTEM AND METHOD FOR COMPRESSOR MOTOR PROTECTION

Emerson Climate Technolog...

1. A system comprising:
a refrigerant compressor including an electric motor;
a current sensor that measures current flow to the electric motor;
a switching device configured to close and open to allow and prevent current flow to the electric motor, respectively;
a maximum continuous current (MCC) device that generates an output that is one of: (i) an MCC for the electric motor and (ii)
a value indicative of the MCC for the electric motor;

a motor protection module that:
is remote from the MCC device;
receives the output wirelessly from the MCC device via an antenna;
one of: (i) sets a first MCC to the MCC for the electric motor; and (ii) determines the first MCC based on the value indicative
of the MCC for the electric motor;

selectively sets a predetermined MCC to the first MCC; and
controls the switching device based on a comparison of the current flow to the electric motor and the predetermined MCC.

US Pat. No. 9,790,940

VARIABLE VOLUME RATIO COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:
a shell defining a discharge-pressure region and a suction-pressure region;
a first scroll member disposed within the shell and including a first end plate and a first spiral wrap extending from a first
side of the first end plate, the first end plate including a discharge passage, a first bypass passage and a second bypass
passage extending through the first side and a second side of the first end plate;

a second scroll member including a second spiral wrap cooperating with the first spiral wrap to define first and second fluid
pockets therebetween, the first and second fluid pockets in communication with the first and second bypass passages, respectively;

a partition plate disposed within the shell and separating the discharge-pressure region from the suction-pressure region,
the partition plate including a first opening in communication with the discharge-pressure region;

a bypass valve retainer attached to the partition plate and including a second opening in communication with the first opening,
the discharge passage and the discharge-pressure region; and

a bypass valve member disposed around the discharge passage and disposed within the first opening, the bypass valve member
being movable between a first position in which the bypass valve member contacts the first end plate and restricts fluid flow
through at least one of the first and second bypass passages and a second position in which the bypass valve member allows
fluid flow through the at least one of the first and second bypass passages and through the second opening.

US Pat. No. 9,790,941

COMPRESSOR AND BEARING ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:
a shell;
a compression mechanism disposed within said shell;
a drive shaft drivingly engaged with the compression mechanism;
a bearing housing engaged with said compression mechanism;
a hub disposed within said shell and defining an axis of rotation, said hub including an axially extending aperture, said
drive shaft engaged with said axially extending aperture;

a motor assembly driving said drive shaft about said axis of rotation;
a bearing insert disposed within said aperture and rotatably supporting said drive shaft; and
at least one collar disposed about said hub,
wherein said at least one collar is mounted on said hub to create an interference fit between the at least one collar and
the hub and retain the at least one collar on the hub.

US Pat. No. 9,683,563

VIBRATION PROTECTION IN A VARIABLE SPEED COMPRESSOR

Emerson Climate Technolog...

1. A system comprising:
a variable speed compressor operable at a plurality of frequencies; and
a control module that controls an operating frequency of the variable speed compressor, the control module storing at least
one prohibited frequency range that includes a resonant frequency of the variable speed compressor and storing an allowed
upper frequency and an allowed lower frequency for each prohibited frequency range of the at least one prohibited frequency
range, the allowed upper frequency being above the associated prohibited frequency range and the allowed lower frequency being
below the associated prohibited frequency range;

wherein the control module determines a requested frequency for operating the variable speed compressor, compares the requested
frequency with the at least one prohibited frequency range, operates the variable speed compressor at the requested frequency
when the requested frequency is outside of the at least one prohibited frequency range, determines an upper frequency operating
time and a lower frequency operating time when the requested frequency is within the at least one prohibited frequency range,
and operates the variable speed compressor at the allowed upper frequency for the upper frequency operating time and at the
allowed lower frequency for the lower frequency operating time when the requested frequency is within the at least one prohibited
frequency range, and wherein the control module determines the upper frequency operating time and the lower frequency operating
time such that a time-averaged frequency output over the upper frequency operating time and the lower frequency operating
time corresponds to the requested frequency.

US Pat. No. 10,132,543

SYSTEM AND METHOD OF CONTROLLING A VARIABLE-CAPACITY COMPRESSOR

Emerson Climate Technolog...

1. A climate-control system comprising a variable-capacity compressor unit and a control module controlling the variable-capacity compressor unit, the variable-capacity compressor unit operable in a first capacity mode and in a second capacity mode that is higher than the first capacity mode, the control module configured to switch the variable-capacity compressor unit between the first capacity mode and the second capacity mode based on a demand signal, outdoor-air-temperature data, and a region in which the climate-control system is installed.

US Pat. No. 10,075,065

CHOKE AND EMI FILTER CIRCUITS FOR POWER FACTOR CORRECTION CIRCUITS

Emerson Climate Technolog...

1. A converter circuit comprising:a first electromagnetic interference filter connected to alternating current (AC) lines and comprising one or more across-the-line capacitors, wherein the first electromagnetic interference filter comprises an across-the-line capacitor for each phase of an AC input signal;
a charging circuit configured to (i) receive power from the first electromagnetic interference filter, and (ii) limit an amount of current passing from the first electromagnetic interference filter to a direct current (DC) bus; and
a power factor correction circuit of a compressor drive, wherein the power factor correction circuit is configured to provide power factor correction between an output of the charging circuit and a generated first DC voltage, wherein the power factor correction circuit comprises
a rectification circuit configured to rectify the power from the AC lines or the output of the charging circuit depending on whether the rectification circuit is upstream or downstream from the charging circuit, and
a second electromagnetic interference filter connected downstream from the rectification circuit and comprising only a single DC bus rated capacitor, wherein the second electromagnetic interference filter is configured to output a filtered DC signal based on an output of the rectification circuit, a capacitance of each of the one or more across-the-line capacitors of the first electromagnetic interference filter is related to a capacitance of the single DC bus rated capacitor of the second electromagnetic interference filter, such that inclusion of the DC bus rated capacitor allows capacitances of each of the one or more across-the-line capacitors to be reduced while not reducing a level of electromagnetic interference filtering, and
wherein the power factor correction circuit is configured to, based on the output of the second electromagnetic interference filter, output the first DC voltage to the DC bus to power the compressor drive.

US Pat. No. 10,036,388

SCROLL COMPRESSOR WITH OIL MANAGEMENT SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:a shell;
a main bearing housing disposed within said shell;
a driveshaft supported by said main bearing housing;
a non-orbiting scroll member coupled to said main bearing housing and including a first lubricant supply path, said first lubricant supply path in fluid communication with a lubricant source; and
an orbiting scroll member rotatably coupled to said driveshaft and meshingly engaged with said non-orbiting scroll member, said orbiting scroll member having a recess formed therein that is moved between a first position in fluid communication with said first lubricant supply path and a second position fluidly isolated from said first lubricant supply path.

US Pat. No. 10,028,399

COMPRESSOR PROTECTION MODULE

Emerson Climate Technolog...

1. A compressor comprising:a shell;
a terminal assembly engaging said shell and including an outwardly extending conductor and a terminal fence at least partially surrounding said conductor; and
an electronics module including a back plate having an opening through which said terminal fence is received, said back plate including an engagement feature and a spring element, said engagement feature removably engaging said terminal fence, said spring element contacting said shell and biasing said back plate away from said shell.

US Pat. No. 10,018,392

SYSTEM AND METHOD FOR CONTROLLING A VARIABLE-CAPACITY COMPRESSOR

Emerson Climate Technolog...

1. A climate-control system including a variable-capacity compressor unit and a control module controlling the compressor unit, the compressor unit operable in a first capacity mode and in a second capacity mode that is higher than the first capacity mode, the control module configured to switch the compressor unit among a shutdown state, the first capacity mode and the second capacity mode,wherein the control module switches the compressor unit between the first and second capacity modes based on a comparison of a total runtime of the compressor unit with a predetermined low-capacity runtime,
wherein the total runtime of the compressor unit is a period of time over which the compressor unit has been running since most recently being in a shutdown state,
wherein the control module adjusts the predetermined low-capacity runtime based on a number of times within a predetermined time period that the compressor unit has been switched into the shutdown state due to a demand signal switching from on to off.

US Pat. No. 9,951,985

REFRIGERANT CHARGE DETECTION FOR ICE MACHINES

Emerson Climate Technolog...

29. A method comprising:determining baseline parameters;
detecting one of a current and a power drawn by a motor;
detecting a discharge line temperature;
detecting a liquid line temperature of fluid circulating within a system;
detecting a discharge pressure;
detecting a suction pressure;
detecting a condenser temperature;
communicating said detected current or power, said detected discharge line temperature, said detected liquid line temperature, said detected discharge pressure, said detected suction pressure, and said detected condenser temperature to processing circuitry;
calculating at least one of a freeze time, a subcooling temperature, and a superheat temperature using operating parameters at said processing circuitry;
determining whether at least one of said freeze time, subcooling temperature, superheat temperature, current or power, discharge line temperature, liquid line temperature, discharge pressure, suction pressure, and condenser temperature are within a predetermined threshold from a respective baseline parameter;
determining an average parameter using the at least one of said freeze time, subcooling temperature, superheat temperature, current or power, discharge line temperature, liquid line temperature, discharge pressure, suction pressure, and condenser temperature with said respective baseline parameter if said at least one of said freeze time, subcooling temperature, superheat temperature, current or power, discharge line temperature, liquid line temperature, discharge pressure, suction pressure, and condenser temperature is within said predetermined threshold from said respective baseline parameter; and
generating a new baseline parameter from said average parameter.

US Pat. No. 10,344,997

HEAT PUMP AND AIR CONDITIONING GRADING SYSTEMS AND METHODS

Emerson Climate Technolog...

1. A grading system, comprising:one or more processors;
memory including instructions that, when executed by the one or more processors, cause the one or more processors to:
receive, from sensors of a building over a network, indoor temperatures of the building during a predetermined period, outdoor temperatures at the building during the predetermined period, and power consumptions of a heat pump of the building during the predetermined period,
determine an expected average power consumption of the heat pump of the building for the predetermined period as a function of the indoor and outdoor temperatures of the building during the predetermined period;
determine a power difference between an average power consumption of the heat pump during the predetermined period and the expected average power consumption of the heat pump for the predetermined period;
determine an initial grade of the heat pump for the predetermined period based on the power difference of the predetermined period;
determine a final grade of the heat pump for the predetermined period based on a comparison of a temperature range for the predetermined period with an average of temperature differences between return air temperatures of the predetermined period and supply air temperatures of the predetermined period, respectively, the determination of the final grade including:
when the average of the temperature differences is less than a lower limit of the temperature range, setting the final grade based on:
Initial Grade?GainLow*(Lower Limit?TS),
where Initial Grade is the initial grade, GainLow is a predetermined lower gain value, Lower Limit is the lower limit of the temperature range, and TS is the average of the temperature differences; and
when the average of the temperature differences is greater than an upper temperature limit of the temperature range, setting the final grade based on:
Initial Grade?GainHigh*(Upper Limit?TS),
where Initial Grade is the initial grade, GainHigh is a predetermined upper gain value that is greater than the predetermined lower gain value, Upper Limit is the upper limit of the temperature range, and TS is the average of the temperature differences;
generate a displayable report including the final grade of the heat pump for the predetermined period;
transmit the displayable report to a user computing device associated with the building; and
control the heat pump of the building.

US Pat. No. 10,047,799

SCROLL COMPRESSOR LOWER BEARING

Emerson Climate Technolog...

1. A compressor comprising:a shell;
a compression mechanism disposed within the shell
a motor assembly disposed within the shell;
a driveshaft drivingly engaged with the motor and the compression mechanism for rotation about an axis, the driveshaft extending from a proximal end to a distal end, the distal end having an axially extending passage;
a bearing assembly disposed within the shell and supporting the driveshaft for rotation, the bearing assembly including
a bracket coupled to the shell and having an aperture;
a hub disposed within the aperture and extending from a proximal end to a distal end, the hub defining a bore extending from the proximal end of the hub to the distal end of the hub, the bore including a proximal portion defining a first diameter, a distal portion defining a second diameter that is greater than the first diameter, and a radially inwardly extending lip defining a third diameter that is less than the first and second diameters; and
a bushing having a proximal portion and a distal portion, the distal portion of the bushing having a plurality of radially extending engagement features, the proximal portion of the bushing disposed within the distal portion of the bore, the distal portion of the bushing disposed within the distal portion of the bore such that the engagement features engage the lip of the hub.

US Pat. No. 9,885,507

PROTECTION AND DIAGNOSTIC MODULE FOR A REFRIGERATION SYSTEM

Emerson Climate Technolog...

1. A system comprising:
a compressor operable in a refrigeration circuit;
an ambient temperature sensor producing a signal indicative of an ambient temperature; and
processing circuitry calculating a plurality of energy efficiency ratings of said refrigeration circuit for a plurality of
ambient temperatures, generating a first plot of said plurality of calculated energy efficiency ratings versus said plurality
of ambient temperatures and comparing said first plot to a second plot of a plurality of base energy efficiency ratings versus
said plurality of ambient temperatures to determine if a fault condition exists.

US Pat. No. 9,765,979

HEAT-PUMP SYSTEM WITH REFRIGERANT CHARGE DIAGNOSTICS

Emerson Climate Technolog...

1. An apparatus for a heat-pump circuit having indoor and outdoor heat exchangers, a compressor circulating a working fluid
between the indoor and outdoor heat exchangers, and an expansion device between the indoor and outdoor heat exchangers, the
apparatus comprising:
a return-air temperature sensor adapted to measure a first air temperature of air upstream of the indoor heat exchanger;
a supply-air temperature sensor adapted to measure a second air temperature of air downstream of the indoor heat exchanger;
a working-fluid temperature sensor disposed between the expansion device and the indoor heat exchanger and adapted to measure
a working-fluid temperature of working fluid flowing between the indoor heat exchanger and the expansion device when the heat-pump
system is operating in a heating mode; and

a processor in communication with the return-air temperature sensor, the supply-air temperature sensor and the working-fluid
temperature sensor, the processor configured to determine a first difference between the second air temperature and the working-fluid
temperature, a second difference between the second air temperature and the first air temperature, and a third difference
between the working-fluid temperature and the first air temperature, the processor configured to determine a working-fluid-charge
condition of the heat-pump system based on a first comparison of the first difference with a first predetermined value and
one of: a second comparison of the second difference with a second predetermined value and a third comparison of the third
difference with a third predetermined value.

US Pat. No. 10,132,301

COMPRESSOR AND CRANKSHAFT-CONNECTING ROD ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:a shell defining a cylinder;
a crankshaft supported for rotation relative to said shell;
a piston reciprocating within said cylinder in response to rotation of said crankshaft, said piston and said cylinder defining a compression chamber therebetween; and
a connecting rod including a first bushing rotatably coupled to said piston and a second bushing rotatably coupled to said crankshaft, said second bushing including a driving surface contacting said crankshaft and having a recess formed therein, said recess receiving an insert,
wherein said insert extends through first and second opposing axial ends of said second bushing,
wherein said connecting rod includes a longitudinal axis that extends through said first and second bushings, wherein said longitudinal axis defines a centerline of said connecting rod, and
wherein said longitudinal axis extends through said insert such that a first sidewall of said insert is angularly spaced apart from said longitudinal axis by thirty to sixty degrees and a second sidewall of said insert is angularly spaced apart from said longitudinal axis by thirty to sixty degrees, and wherein said longitudinal axis is disposed angularly between said first and second sidewalls.

US Pat. No. 10,067,482

MENU AND FIRMWARE MANAGEMENT FOR EQUIPMENT

Emerson Climate Technolog...

1. A system comprising:an equipment controller for operating a piece of kitchen equipment, the equipment controller having a memory storing an initial menu with a plurality of food items and a plurality of associated operating parameters, each food item having at least one associated operating parameter from the plurality of associated operating parameters for operating the piece of kitchen equipment when preparing the associated food item;
a supervisory controller in communication with the equipment controller and in communication with a remote monitor, the remote monitor being configured to receive an updated menu for the piece of kitchen equipment from a remote terminal, the updated menu including at least one of a food item modification to the plurality of food items of the initial menu and an operating parameter modification to at least one associated operating parameter of the plurality of associated operating parameters of the initial menu; and
a user interface associated with the piece of kitchen equipment, the initial menu including an icon associated with each food item of the plurality of food items, the icon including a graphical depiction of the associated food item, the user interface being configured to display the icon associated with each food item of the plurality of food items and to receive a selection from the plurality of food items;
wherein the supervisory controller is configured to receive the updated menu from the remote monitor and communicate the updated menu to the equipment controller and the equipment controller is configured to install the updated menu by at least one of updating the initial menu based on the updated menu and replacing the initial menu with the updated menu; and
wherein the updated menu includes a user interface modification including at least one of a modification to an existing icon of the initial menu and an addition of a new icon.

US Pat. No. 9,938,967

RECIPROCATING COMPRESSOR SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:a crankcase defining an interior volume;
a crankshaft disposed within said crankcase;
first and second pistons drivingly connected to said crankshaft;
first and second cylinders reciprocatingly receiving said first and second pistons, respectively, said first piston and said first cylinder defining a first compression chamber therebetween, said second piston and said second cylinder defining a second compression chamber therebetween;
a first suction plenum attached to said first cylinder and from which said first compression chamber draws working fluid, said first suction plenum including a first inlet through which working fluid flows into said first suction plenum;
a first discharge passage extending through said first piston and through which compressed working fluid flows from said first compression chamber to said interior volume of said crankcase; and
a second suction plenum attached to said second cylinder and from which said second compression chamber draws working fluid, said second suction plenum including a second inlet through which working fluid flows into said second suction plenum from said interior volume of said crankcase,
wherein said second suction plenum includes a third inlet through which working fluid flows into said second suction plenum, wherein said third inlet is fluid isolated from said interior volume of said crankcase.

US Pat. No. 9,879,674

COMPRESSOR HAVING CAPACITY MODULATION ASSEMBLY

Emerson Climate Technolog...

1. A compressor comprising:
a shell assembly defining a suction-pressure region and a discharge-pressure region, said shell assembly including a partition
separating said suction-pressure region from said discharge-pressure region;

a first scroll member disposed within said shell assembly and including a first end plate having a discharge passage, a modulation
port, a biasing passage, and a first spiral wrap extending from said first end plate;

a second scroll member disposed within said shell assembly and including a second end plate having a second spiral wrap extending
therefrom, said first and second spiral wraps meshingly engaged and forming a series of pockets during orbital displacement
of said second scroll member relative to said first scroll member, said modulation port in communication with a first one
of said pockets, said biasing passage in communication with a second one of said pockets;

a floating seal assembly engaged with said partition and said first scroll member and isolating said discharge-pressure region
from said suction-pressure region; and

a modulation valve ring located axially between said floating seal assembly and said first end plate and being in sealing
engagement with an outer radial surface of a hub extending from said first end plate and an outer radial surface of said floating
seal assembly to define an axial biasing chamber in fluid communication with said biasing passage, said modulation valve ring
being axially displaceable between first and second positions, said modulation valve ring abutting said first end plate and
closing said modulation port when in said first position, said modulation valve ring abutting an axially facing surface of
said floating seal assembly and spaced apart from said first end plate to open said modulation port when in said second position.

US Pat. No. 10,125,768

COMPRESSOR HAVING OIL-LEVEL SENSING SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:a shell including a motor, a compression mechanism, a lubricant sump, and a suction chamber;
a suction inlet extending through said shell and configured to deliver suction gas to the suction chamber;
a fluid path for delivering suction gas, the fluid path having a first end proximate said lubricant sump and a second end proximate said suction inlet;
a first temperature sensor disposed within said fluid path adjacent said first end;
a second temperature sensor disposed within said shell at a position vertically higher than said first sensor; and
a control module in communication with said first and second temperature sensors, said control module determining a temperature difference between said first temperature sensor and said second temperature sensor, said control module determining a liquid level in said lubricant sump based on said temperature difference.

US Pat. No. 10,094,382

COMPRESSOR HAVING OIL-LEVEL SENSING SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:a shell including a motor, a compression mechanism, a lubricant sump, and a suction chamber;
a suction inlet extending through said shell and configured to deliver suction gas to the suction chamber;
a fluid path for delivering suction gas, the fluid path having a first end proximate said lubricant sump and a second end proximate said suction inlet;
a first temperature sensor disposed within said fluid path adjacent said first end;
a second temperature sensor disposed within said shell at a position vertically higher than said first sensor; and
a control module in communication with said first and second temperature sensors, said control module determining a temperature difference between said first temperature sensor and said second temperature sensor, said control module determining a liquid level in said lubricant sump based on said temperature difference.

US Pat. No. 10,180,272

REFRIGERANT CHARGE DETECTION FOR ICE MACHINES

Emerson Climate Technolog...

18. A method comprising:detecting, by a first sensor, a first signal;
detecting, by a second sensor, a second signal;
processing, by a processing circuitry, said first signal and said second signal; and
determining, by a processing circuitry a new baseline freeze time from the first signal and the second signal,
wherein said new baseline freeze time is determined for a predetermined time following an installation event, a service event, or a power outage of a compressor.

US Pat. No. 10,180,139

COMPRESSOR HAVING OIL-LEVEL SENSING SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:a shell including a motor, a compression mechanism and a lubricant sump;
a first temperature sensor at least partially disposed within said lubricant sump and configured to measure a first temperature at a first position;
a second temperature sensor at least partially disposed within said lubricant sump and configured to measure a second temperature at a second position that is vertically higher than said first position;
a third temperature sensor at least partially disposed within said shell and configured to measure a third temperature at a third position that is vertically lower than said first and second positions;
a pressure sensor disposed at least partially within said shell vertically above said first and third positions; and
a control module in communication with said first, second and third temperature sensors and said pressure sensor,
wherein said control module is configured to determine a first difference between the third temperature and the second temperature,
wherein said control module is configured to determine a second difference between the first temperature and the second temperature, and
wherein, if the second difference is less than a predetermined value, said control module determines whether a liquid level of lubricant in said lubricant sump is below a predetermined level based on data from said pressure sensor.

US Pat. No. 10,180,138

COMPRESSOR TEMPERATURE CONTROL SYSTEMS AND METHODS

Emerson Climate Technolog...

1. A compressor capacity control system comprising:a minimum determination module that selectively increases a minimum capacity of a compressor when a temperature of the compressor is greater than a first predetermined temperature and that sets the minimum capacity to a predetermined maximum capacity of the compressor when the temperature of the compressor is greater than a second predetermined temperature,
wherein the second predetermined temperature is greater than the first predetermined temperature;
a capacity command module that compares the minimum capacity with a target capacity of the compressor and that, based on the comparison, sets a capacity command to a greater one of the minimum capacity and the target capacity of the compressor,
wherein the target capacity is a predetermined value that is one of (a) set by a user and (b) provided by a controller; and
a control module that controls an actual capacity of the compressor based on the capacity command, the control including increasing an actual capacity of the compressor in response to an increase in the minimum capacity and adjusting the actual capacity of the compressor to the predetermined maximum capacity in response to the minimum capacity being set to the predetermined maximum capacity.

US Pat. No. 10,060,636

HEAT PUMP SYSTEM WITH REFRIGERANT CHARGE DIAGNOSTICS

Emerson Climate Technolog...

1. A monitor for a heat-pump system having indoor and outdoor heat exchangers, a compressor circulating a working fluid between the indoor and outdoor heat exchangers, and an expansion device between the indoor and outdoor heat exchangers, the monitor comprising:a return-air temperature sensor adapted to measure a first air temperature of air upstream of the indoor heat exchanger;
a supply-air temperature sensor adapted to measure a second air temperature of air downstream of the indoor heat exchanger;
a working-fluid temperature sensor disposed between the expansion device and the indoor heat exchanger and adapted to measure a working-fluid temperature of working fluid flowing between the indoor heat exchanger and the expansion device when the heat-pump system is operating in a heating mode; and
a processor in communication with the return-air temperature sensor, the supply-air temperature sensor and the working-fluid temperature sensor, the processor configured to determine a first difference between the second air temperature and the working-fluid temperature and a second difference between the second air temperature and the first air temperature, the processor configured to determine a working-fluid-charge condition of the heat-pump system based on a first comparison of the first difference with a first predetermined value and a second comparison of the second difference with a second predetermined value.

US Pat. No. 10,344,761

ROTARY COMPRESSOR WITH VAPOR INJECTION SYSTEM

Emerson Climate Technolog...

1. A compressor comprising:a crankshaft including an eccentric portion;
a cylinder housing defining a cylindrical recess through which the crankshaft extends;
a rotor disposed within said cylindrical recess and engaging said eccentric portion of said crankshaft for movement with said crankshaft relative to said cylindrical recess, said rotor and a circumferential surface of said cylindrical recess defining a compression chamber therebetween;
a suction opening providing fluid at a first pressure to said cylindrical recess;
a discharge opening receiving compressed fluid from said compression chamber;
a fluid-injection passageway providing fluid at a second pressure to said compression chamber via a fluid-injection opening, said second pressure being higher than said first pressure;
a valve movable relative to said cylindrical recess between a first position allowing fluid flow from said fluid-injection passageway to said fluid-injection opening and a second position restricting fluid flow from said fluid-injection passageway to said fluid-injection opening; and
a recess in fluid communication with said fluid-injection opening.

US Pat. No. 10,344,804

SCROLL COMPRESSOR LOWER BEARING

Emerson Climate Technolog...

1. A compressor comprising:a shell;
a fluid compressor disposed within the shell;
a motor disposed within the shell;
a driveshaft drivingly engaged with the motor and the fluid compressor for rotation about an axis, the driveshaft extending from a first end to a second end, the second end having an axially extending passage;
a bearing assembly disposed within the shell and supporting the driveshaft for rotation, the bearing assembly including
a bracket coupled to the shell and having an aperture;
a hub disposed within the aperture and defining a bore being a through-hole in the hub, the bore including a radially inwardly extending lip on an end of the hub; and
a bushing having a first portion and a second portion, the second portion of the bushing having a plurality of radially extending engagement features, the second portion of the bushing disposed within the bore such that the engagement features engage the radially inwardly extending lip of the hub.

US Pat. No. 10,323,638

VARIABLE VOLUME RATIO COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:a shell defining a discharge-pressure region and a suction-pressure region;
a first scroll member disposed within the shell and including a first end plate and a first spiral wrap extending from a first side of the first end plate, the first end plate including a discharge passage, a first bypass passage and a second bypass passage extending through the first side and a second side of the first end plate;
a second scroll member including a second spiral wrap cooperating with the first spiral wrap to define first and second fluid pockets therebetween, the first and second fluid pockets in communication with the first and second bypass passages, respectively;
a partition plate disposed within the shell and separating the discharge-pressure region from the suction-pressure region, the partition plate including an opening in communication with the discharge-pressure region, the first scroll member including a hub through which the discharge passage extends;
a bypass valve member disposed around the hub and movable between a first position in which the bypass valve member restricts fluid flow through at least one of the first and second bypass passages and a second position in which the bypass valve member allows fluid flow through the at least one of the first and second bypass passages and into the discharge-pressure region, the bypass valve is member movable between the first and second positions in an axial direction along a longitudinal axis of the hub; and
a bypass valve retainer attached to an outer diametrical surface of the hub.

US Pat. No. 10,323,639

VARIABLE VOLUME RATIO COMPRESSOR

Emerson Climate Technolog...

1. A compressor comprising:a shell defining a discharge-pressure region and a suction-pressure region;
a first scroll member disposed within the shell and including a first end plate and a first spiral wrap extending from a first side of the first end plate, the first end plate including a discharge recess, a discharge passage, a first bypass passage and a second bypass passage, the discharge recess in communication with the discharge passage and the discharge-pressure region, the first and second bypass passages extending through the first side and a second side of the first end plate;
a second scroll member including a second spiral wrap cooperating with the first spiral wrap to define first and second fluid pockets therebetween, the first and second fluid pockets in communication with the first and second bypass passages, respectively;
a partition plate disposed within the shell and separating the discharge-pressure region from the suction-pressure region;
a valve housing extending at least partially through the partition plate and partially received in the discharge recess, the valve housing including a first passage extending therethrough and communicating with the discharge-pressure region and the discharge recess; and
a bypass valve member disposed between the first end plate and a flange of the valve housing and movable between a first position in which the bypass valve member restricts fluid flow through at least one of the first and second bypass passages and a second position in which the bypass valve member allows fluid flow through the at least one of the first and second bypass passages and into the first passage in the valve housing,
wherein when the bypass valve member is in the second position, fluid from at least one of the first and second fluid pockets bypasses the discharge recess via the at least one of the first and second bypass passages and flows into the first passage.

US Pat. No. 10,300,766

SYSTEM AND METHOD OF CONTROLLING PASSAGE OF REFRIGERANT THROUGH EUTECTIC PLATES AND AN EVAPORATOR OF A REFRIGERATION SYSTEM FOR A CONTAINER OF A VEHICLE

Emerson Climate Technolog...

11. The system of claim 1, wherein the engine module is configured to, while in the engine mode, run the compressor at higher speeds than the battery module is configured to run the compressor during the battery mode.

US Pat. No. 10,240,836

ENERGY MANAGEMENT FOR REFRIGERATION SYSTEMS

Emerson Climate Technolog...

11. A system comprising:a system controller for a refrigeration or HVAC system having a compressor rack with at least one compressor and a condensing unit with at least one condenser fan, the system controller monitoring and controlling operation of the refrigeration or HVAC system;
a rack controller in communication with the system controller, the rack controller monitoring and controlling operation of the compressor rack and determining compressor rack power consumption data; and
a condensing unit controller in communication with the system controller, the condensing unit controller monitoring and controlling operation of the condensing unit and determining condensing unit power consumption data;
wherein the system controller receives the compressor rack power consumption data and the condensing unit power consumption data, receives forecast weather data for a future time period, determines a predicted total power consumption of the refrigeration or HVAC system based on the forecast weather data, compares the predicted total power consumption of the refrigeration or HVAC system with a predetermined power threshold, and performs at least one of generating an alert and modifying operation of the refrigeration or HVAC system when the predicted total power consumption is greater than the predetermined power threshold.

US Pat. No. 10,240,838

VARIABLE SPEED COMPRESSOR CONTROL WITH SOUND-CONTROLLED DEFROST MODE

Emerson Climate Technolog...

1. A drive controller for a motor of a compressor, the drive controller comprising:a drive circuit that applies voltages to windings of the motor;
a speed control module that controls the drive circuit to rotate the motor at a requested speed;
a speed determination module that generates the requested speed; and
a defrost module that enables a defrost mode in response to a defrost command received from a system controller, wherein:
in response to the defrost mode being enabled, the speed determination module ramps the requested speed down from a speed demand to a defrost speed,
while the defrost mode is enabled, the drive circuit continues to rotate the motor and the system controller actuates a refrigerant reversing valve to a first position,
in response to the requested speed reaching the defrost speed, the speed determination module maintains the requested speed at the defrost speed until conclusion of the defrost mode, and
in response to conclusion of the defrost mode, the system controller actuates the refrigerant reversing valve to a second position and the speed determination module ramps the requested speed up to the speed demand.

US Pat. No. 10,215,174

CO-ROTATING COMPRESSOR WITH MULTIPLE COMPRESSION MECHANISMS

Emerson Climate Technolog...

13. A compressor comprising:a shell;
a first compression mechanism disposed within the shell and including a first compression member that is rotatable relative to the shell about a first rotational axis and a second compression member that is rotatable relative to the shell about a second rotational axis that is parallel to and offset from the first rotational axis;
a first bearing housing fixed relative to the shell and rotatably supporting a first hub of the first compression member;
a second bearing housing fixed relative to the shell and rotatably supporting a second hub of the second compression member;
a first motor assembly disposed between the first and second bearing housings and including a first rotor attached to the first compression member;
a second compression mechanism disposed within the shell and including a third compression member that is rotatable relative to the shell about a third rotational axis and a fourth compression member that is rotatable relative to the shell about a fourth rotational axis that is parallel to and offset from the third rotational axis, the fourth compression member including a fourth hub that is rotatably supported by the second bearing housing;
a third bearing housing fixed relative to the shell and rotatably supporting a third hub of the third compression member; and
a second motor assembly disposed between the second and third bearing housings and including a second rotor attached to the third compression member.

US Pat. No. 10,211,469

HEAT REJECTION SYSTEM FOR ELECTROCHEMICAL CLIMATE CONTROL SYSTEM

Emerson Climate Technolog...

1. A climate control system comprising:an electrochemical device;
a first heat exchanger configured to operate as an evaporator and disposed upstream of the electrochemical device;
an expansion device disposed between the electrochemical device and the first heat exchanger;
a first pump;
a fluid conduit for establishing fluid communication between the electrochemical device, the first heat exchanger, the expansion device, and the first pump, so that the first pump circulates a working fluid in the fluid conduit, wherein the working fluid has a composition that undergoes a reversible hydrogenation and dehydrogenation reaction when it passes through the electrochemical device when a potential is applied thereto;
a second heat exchanger configured to cool a portion of the working fluid exiting the electrochemical device for heat rejection from the electrochemical device; and
a recirculation pump that circulates the portion of the working fluid exiting the electrochemical device through the second heat exchanger and back to an inlet of the electrochemical device.

US Pat. No. 10,151,663

LEAK DETECTOR SENSOR SYSTEMS USING TAG-SENSITIZED REFRIGERANTS

Emerson Climate Technolog...

1. A refrigerant leak detection system comprising:a refrigerant circuit that circulates a working fluid comprising a flammable refrigerant and an oil;
a reducible tag component solubilized within the refrigerant that substantially remains in the refrigerant rather than in the oil, wherein the tag component is present at a concentration of greater than or equal to about 50 ppm to less than or equal to about 35,000 ppm in the flammable refrigerant; and
a sensor associated with the refrigerant circuit configured to detect the reducible tag component if the refrigerant leaks from the refrigerant circuit, wherein the sensor has a sensitivity ratio for the reducible tag component of less than about 0.5 in air at a concentration of 100 ppm.

US Pat. No. 10,145,372

VARIABLE CAPACITY RECIPROCATING COMPRESSOR

Emerson Climate Technolog...

1. A reciprocating compressor comprising:a shell;
a first cylinder disposed within said shell and including a first valve;
a plate fixed relative to said first cylinder and including a second valve;
a second cylinder axially aligned with said first cylinder and moveable relative to said first cylinder between first and second positions;
a piston disposed within said second cylinder and including a third valve, said piston reciprocating relative to said first and second cylinders, said piston and said plate defining a first compression chamber therebetween, said piston and said first cylinder defining a second compression chamber therebetween;
a fluid-injection passage extends through said first cylinder and provides a working fluid to said second compression chamber; and
a fluid-injection valve in said fluid-injection passage is moveable between an open position allowing fluid to be injected into said second compression chamber through said fluid-injection passage and a closed position restricting fluid communication between said second compression chamber and said fluid-injection passage.

US Pat. No. 10,066,617

COMPRESSOR WITH FLOODED START CONTROL

Emerson Climate Technolog...

1. A system comprising:a compressor for a refrigeration system;
an ambient temperature sensor that generates ambient temperature data corresponding to an outdoor ambient temperature;
a compressor temperature sensor that generates compressor temperature data corresponding to a compressor temperature;
a control module that receives the ambient temperature data and the compressor temperature data, determines whether the outdoor ambient temperature is rising faster than the compressor temperature, determines whether the outdoor ambient temperature is greater than the compressor temperature by more than a predetermined threshold for more than a predetermined time period, and, in response to the outdoor ambient temperature rising faster than the compressor temperature and the outdoor ambient temperature being greater than the compressor temperature by more than the predetermined threshold for more than the predetermined time period, operates the compressor according to at least one cycle including a first time period during which the compressor is on and a second time period during which the compressor is off.

US Pat. No. 10,345,038

DYNAMIC COEFFICIENT OF PERFORMANCE CALCULATION FOR REFRIGERATION SYSTEMS

Emerson Climate Technolog...

1. A refrigeration system comprising:a refrigeration case that includes an evaporator;
a compressor rack associated with the refrigeration case; and
a controller that is configured to, using a processor, execute instructions that are stored in a non-transitory memory, wherein the instructions include:
receiving outdoor temperature data and refrigeration case temperature data from a plurality of temperature sensors;
receiving pressure data of the compressor rack from a pressure sensor;
calculating a weighted Carnot efficiency of the refrigeration case based on (i) the outdoor temperature data, (ii) the refrigeration case temperature data, (iii) a case load of the refrigeration case, and (iv) a case defrost status of the refrigeration case;
calculating a weighted coefficient of performance based on based on (i) a refrigerant type, (ii) the case load of the refrigeration case, (iii) the case defrost status of the refrigeration case, and at least one of the of (iv) the refrigeration case temperature data and (v) the pressure data;
calculating a system performance index (SPI) for the refrigeration case based on the weighted Carnot efficiency of the refrigeration case and weighted actual Carnot efficiency; and
generating, in response to the SPI being below a threshold, an output indicating that the refrigeration case is operating below a threshold efficiency.

US Pat. No. 10,335,906

COMPRESSOR DIAGNOSTIC AND PROTECTION SYSTEM AND METHOD

Emerson Climate Technolog...

1. A system comprising:a compressor operable in a refrigeration circuit;
a first sensor detecting first data indicative of an operating condition of a high-pressure side of the refrigeration circuit;
a second sensor detecting second data indicative of an operating condition of a low-pressure side of the refrigeration circuit;
processing circuitry configured to: (i) receive the first data and the second data, (ii) determine a fault based on at least one of the first data and the second data, (iii) categorize the fault as one of a mild low-side fault, a severe low-side fault, a mild high-side fault, and a severe high-side fault based on the first data and the second data, (iv) operate the compressor in a limp-along mode by at least one of restricting power to the compressor and reducing a capacity of the compressor in response to categorizing the fault as one of the mild high-side fault and the mild low-side fault, and (v) shutting down the compressor in response to categorizing the fault as one of the severe high-side fault and the severe low-side fault.

US Pat. No. 10,315,495

SYSTEM AND METHOD OF CONTROLLING COMPRESSOR, EVAPORATOR FAN, AND CONDENSER FAN SPEEDS DURING A BATTERY MODE OF A REFRIGERATION SYSTEM FOR A CONTAINER OF A VEHICLE

EMERSON CLIMATE TECHNOLOG...

1. A system comprising:a mode module configured to, based on a plurality of parameters, determine whether to operate in a shore power mode, an engine mode, or a battery mode, wherein one or more batteries are charged based on received utility power while in the shore power mode, and wherein the one or more batteries are configured, while in the engine mode, to be charged based on power received from an alternator or a generator; and
a battery module configured to, while operating in the battery mode,
determine a first speed based on (i) a temperature within a temperature controlled container of a vehicle, and (ii) a state of charge of the one or more batteries, and
run a compressor at the first speed,
wherein, while in the battery mode, the one or more batteries are configured not to be charged based on power from (i) a shore power source, and (ii) the alternator or the generator from which power is received during the engine mode.

US Pat. No. 10,302,340

COMPRESSOR HAVING LUBRICANT MANAGEMENT SYSTEM FOR BEARING LIFE

Emerson Climate Technolog...

1. A system for managing at least one property of a lubricant, the system comprising:a bearing assembly;
a motor having a driveshaft supported for rotation by the bearing assembly, the driveshaft configured to support a lubricant film between the driveshaft and the bearing assembly; and
a controller configured to determine a threshold value of at least one of a thickness of the lubricant film and a viscosity of the lubricant, compare the threshold value to an actual value of the at least one of the thickness of the lubricant film and the viscosity of the lubricant, and determine a corrective action when the actual value is less than the threshold value,
wherein the threshold value of the at least one of the thickness of the lubricant film and the viscosity of the lubricant is determined using an evaporator pressure or an evaporator temperature, a condenser pressure or a condenser temperature, and a rotational speed of the driveshaft, and wherein the corrective action includes at least one of modifying a rotation speed of the motor, modifying the rotational speed of the driveshaft, heating the lubricant, modulating a capacity of a compressor, modifying a flow rate at which refrigerant is supplied to an evaporator, adjusting a superheat, changing a speed of a condenser fan or an evaporator fan, changing a position of an expansion valve, and shutting down the motor.

US Pat. No. 10,305,373

INPUT REFERENCE SIGNAL GENERATION SYSTEMS AND METHODS

Emerson Climate Technolog...

1. A power factor correction (PFC) system comprising:a PFC circuit that receives an alternating current (AC) input voltage and that, using a switch, generates a direct current (DC) output voltage from the AC input voltage;
a first zero crossing module that calculates a first zero crossing of the AC input voltage based on:
a first voltage and a first time stored in response to a determination that the AC input voltage transitioned from less than a first predetermined voltage to greater than the first predetermined voltage; and
a second voltage and a second time stored in response to a determination that the AC input voltage transitioned from less than a second predetermined voltage to greater than the second predetermined voltage,
wherein the first predetermined voltage is less than zero, and
wherein the second predetermined voltage is greater than zero;
a reference module that, based on the first zero crossing, generates a sinusoidal reference signal that corresponds to the AC input voltage at least in phase and frequency; and
a switching control module that controls switching of the switch based on the sinusoidal reference signal.

US Pat. No. 10,240,840

SCROLL UNLOADING DETECTION SYSTEM

Emerson Climate Technolog...

1. A system comprising:a scroll compressor having a scroll compression mechanism; and
a controller that determines a predicted discharge temperature of the scroll compressor, that receives an actual discharge temperature of the scroll compressor, that compares the predicted discharge temperature with the actual discharge temperature, that compares a speed of the scroll compressor with a speed threshold, that detects unloading of the scroll compression mechanism based on the comparison of the predicted discharge temperature with the actual discharge temperature and based on the comparison of the speed of the scroll compressor with the speed threshold, and that performs at least one of generating an alert and a remediating action in response to detecting the unloading of the scroll compression mechanism.

US Pat. No. 10,215,175

COMPRESSOR HIGH-SIDE AXIAL SEAL AND SEAL ASSEMBLY RETAINER

Emerson Climate Technolog...

17. A compressor comprising:a non-orbiting scroll including a first spiral wrap;
an orbiting scroll including an end plate having a second spiral wrap ending from a first side of said end plate and an annular hub extending from a second side of said end plate, said first and second spiral wraps cooperating to compress working fluid from a suction pressure to a discharge pressure;
a drive shaft having a crankpin received in said hub and driving said orbiting scroll in an orbital path relative to said non-orbiting scroll;
a bearing housing rotatably supporting said drive shaft and defining a biasing chamber containing working fluid biasing said orbiting scroll toward said non-orbiting scroll in an axial direction; and
a first annular seal engaging a diametrical surface of said hub and engaging said bearing housing, thereby defining said biasing chamber,
wherein said diametrical surface of said hub is an outer diametrical surface.

US Pat. No. 10,197,319

SYSTEM AND METHOD OF CONTROLLING A VARIABLE-CAPACITY COMPRESSOR

Emerson Climate Technolog...

1. A system comprising:a variable-capacity compressor operable in a first capacity mode and in a second capacity mode that is higher than the first capacity mode; and
a control module configured to switch the variable-capacity compressor between the first capacity mode and the second capacity mode based on a demand signal from a thermostat,
wherein the control module determines a number of previous consecutive operating cycles of the variable-capacity compressor in the first capacity mode within a predetermined period of time and operates the variable-capacity compressor in the second capacity mode in response to the number of previous consecutive operating cycles of the variable-capacity compressor in the first capacity mode within the predetermined period of time exceeding a predetermined threshold.

US Pat. No. 10,337,514

SCROLL COMPRESSOR HAVING AN INSULATED HIGH-STRENGTH PARTITION ASSEMBLY

Emerson Climate Technolog...

1. A scroll compressor comprising:a first scroll member having a discharge port and a first spiral wrap;
a second scroll member having a second spiral wrap, the first and second spiral wraps being mutually intermeshed to define a peripheral suction zone in fluid communication with an inlet that receives low-pressure refrigerant;
a high-strength thermally insulative partition assembly comprising a metal plate and an insulating region that is disposed between the first scroll member and a discharge chamber in fluid communication with the discharge port, wherein the insulating region comprises a distinct mask component secured to the metal plate via a mechanical interlock or a mold-in feature and that has a thermal conductivity (K) of less than or equal to about 300 mW/m·K at standard temperature and pressure conditions, wherein the mask component defines a first discharge portion that defines a seat and comprises a plurality of tabs that radially compress in a first position for sliding engagement with a second discharge portion on the metal plate, wherein the second discharge portion is secured within the seat of the first discharge portion after expansion of the plurality of tabs to a second position and the high-strength thermally insulative partition assembly has a tensile strength of greater than or equal to about 35,000 psi (about 241 MPa); and
a motor for causing the second scroll member to orbit with respect to the first scroll member, whereby the first spiral wrap and the second spiral wrap create at least one enclosed space of progressively changing volume between the peripheral suction zone and the discharge port to create a high-pressure refrigerant, wherein the high-strength thermally insulative partition assembly minimizes or prevents heat transfer between the high-pressure refrigerant in the discharge chamber and the low-pressure refrigerant in the peripheral suction zone.