US Pat. No. 9,726,018

SCROLL TYPE FLUID MACHINE WITH A ROTATION STOPPING MECHANISM

Sanden Holdings Corporati...

1. A scroll type fluid machine provided with a rotation stopping mechanism for stopping rotation of a movable scroll without
hindering revolving movement of the movable scroll relative to a fixed scroll fixed to a casing, wherein the rotation stopping
mechanism comprises:
a buffer member that is an annular plate disposed between a base plate on which a spiral wall of the movable scroll is uprightly
installed, and a pedestal part of the casing, which is positioned opposed to the base plate;

a first support hole that is drilled in the buffer member;
a first rotation stopping pin that is fitted into the first support hole, and is protruded to the side of either one of the
base plate and the pedestal part;

a first restriction hole that is drilled in either one of the base plate and the pedestal part, and is loosely fitted with
the first rotation stopping pin; and
restriction means for restricting movement of the buffer member relative to the other of the base plate and the pedestal,
wherein
the restriction means comprises:
a second support hole that is drilled in the buffer member;
a fixed pin that is fitted into the second support hole, and is protruded to the side of the other of the base plate and the
pedestal part; and

a third support hole that is drilled in the other of the base plate and the pedestal part, and is fitted with the fixed pin,
wherein

the buffer member is formed of a material having a vibration damping rate higher than that of the first rotation stopping
pin.

US Pat. No. 9,897,089

SCROLL COMPRESSOR

AISIN SEIKI KABUSHIKI KAI...

1. A scroll compressor comprising:
a pair of spiral plate bodies between which a compression chamber that compresses refrigerant is formed;
a support configured to support one of the spiral plate bodies;
a plurality of refrigerant paths extending through the support so as to provide communication between the compression chamber
and an outside of the scroll compressor; and

a plurality of check valves each of which is provided in the support for a corresponding one of the refrigerant paths, wherein
each of the plurality of check valves includes a valve element and a valve chamber in which the valve element is accommodated,
and at least one of the check valves is placed at a position away from a rest of the check valves in a rotation axis direction
of the scroll compressor such that the valve chambers of the check valves do not interfere with each other.

US Pat. No. 9,464,850

HEAT EXCHANGER

SANDEN HOLDINGS CORPORATI...

1. A heat exchanger which includes a heat exchanger core constituted by a condenser section configured to condense a refrigerant
and a sub-cooler section configured to supercool the refrigerant of liquid phase obtained by passing the refrigerant from
the condenser section to a receiver tank so as to subject the refrigerant to gas-liquid separation, and in which an upper
header tank and a lower header tank are connected to each other by a plurality of vertically extending tubes and each have
an interior divided by a partition plate into a condenser header part associated with the condenser section and a sub-cooler
header part associated with the sub-cooler section, the heat exchanger comprising:
a single refrigerant pipe configured to introduce the refrigerant into the receiver tank from the condenser header part; and
a mounting member configured to mount the receiver tank to the upper header tank,
wherein
the mounting member has a refrigerant inlet passage connecting the refrigerant pipe to an interior of the receiver tank and
a refrigerant outlet passage connecting the interior of the receiver tank to the sub-cooler header part,

a location of a junction where the refrigerant pipe is connected to the condenser header part is adjustable, and
a position of the partition plates of the header tanks is adjustable.

US Pat. No. 9,488,395

HEAT EXCHANGER AND HEAT PUMP SYSTEM USING THE SAME

SANDEN HOLDINGS CORPORATI...

1. A heat pump system using a heat exchanger, the heat exchanger comprising:
a main core portion for conducting heat exchange between air and a refrigerant;
a receiver tank into which the refrigerant having passed through the main core portion flows; and
a subcool core portion for supercooling and liquefying a gas-liquid mixed refrigerant having passed through the receiver tank
by heat exchange with the air, wherein the subcool core portion is composed of a plurality of tubes arranged along a crosswise
direction between left and right header tanks arranged along the crosswise direction, respectively, in a state in parallel
with each other and communicating with both the left and right header tanks; and fins arranged between the adjacent tubes,

wherein the heat exchanger is capable of switching to a condenser or an evaporator by changing a flow direction of a refrigerant
in the main core portion,

wherein the heat exchanger is capable of being used as an exterior heat exchanger provided outside an HVAC unit for vehicle
air-conditioning, and

wherein the heat pump system further comprises a bypass apparatus for having the refrigerant having passed through the main
core portion flow while bypassing the receiver tank and the subcool core portion when the heat exchanger is used as the evaporator.

US Pat. No. 9,228,573

WABBLE PLATE TYPE VARIABLE DISPLACEMENT COMPRESSOR

Sanden Holdings Corporati...

1. A wabble plate type variable displacement compressor, comprising:
pistons inserted reciprocally into cylinder bores;
a swash plate rotated together with a rotational main shaft and supported changeably in angle relative to said main shaft;
a wabble plate which is connected to said pistons, in which a rotational movement of said swash plate is converted into a
wabble movement of said wabble plate, and which transmits said wabble movement to said pistons to reciprocate said pistons,
and

a rotation preventing mechanism of said wabble plate, wherein:
said rotation preventing mechanism comprises (a) an inner ring provided in a housing movably in an axial direction although
rotation is prevented, and having a plurality of guide grooves for guiding a plurality of balls provided for power transmission,
(b) a sleeve functioning as a wabble central member of said wabble movement of said wabble plate, provided on said rotational
main shaft to rotate relatively thereto and to move in an axial direction and engaged with said inner ring movably in an axial
direction together with said inner ring, (c) an outer ring having a plurality of guide grooves for guiding said balls at positions
opposing respective guide grooves of said inner ring, supported on said sleeve wabblingly, and connected with said wabble
plate fixedly on an outer periphery of said outer ring, and (d) a plurality of balls held by said guide grooves formed in
said inner ring and said outer ring at a condition of opposing each other and performing power transmission by being compressed
between said guide grooves,

a relative shape difference in axial cross-sectional profile is provided between a substantially concave spherical surface
formed in an inner periphery of said outer ring functioning as a wabble member for wabblingly connecting said wabble plate
in said rotation preventing mechanism and a substantially convex spherical surface formed on an outer periphery of said sleeve
functioning as said wabble central member, and

said shape difference is set such that the closer to axial opposite ends of a contact portion between said substantially concave
spherical surface and said substantially convex spherical surface a position of said contact portion is located, the greater
a clearance between both surfaces becomes.

US Pat. No. 10,068,409

VENDING MACHINE

Sanden Holdings Corporati...

1. A vending machine configured to perform a vending operation, the vending machine comprising:a plurality of commodity columns arranged in a vertical direction of a vending machine body;
a commodity receptacle for receiving a commodity from at least one of the plurality of commodity columns;
a moving mechanism that moves the commodity receptacle in the vertical direction by a motor, wherein, during the vending operation:
the moving mechanism moves the commodity receptacle to any of the plurality of commodity columns,
the commodity receptacle receives the commodity from the at least one of the plurality of commodity columns,
the moving mechanism moves the commodity receptacle having received the commodity to a commodity take-out port, and
the commodity is delivered to the commodity take-out port from the commodity receptacle;
a fall velocity detector configured to detect a fall velocity of the commodity receptacle falling in response to an error in the vending operation due to disconnection of power supply to the motor of the moving mechanism;
a brake configured to generate a braking force to decrease the fall velocity of the commodity receptacle; and
a control unit comprising at least one processor, the control unit configured to cause the brake to intermittently or continuously generate the braking force when the fall velocity detector detects that the fall velocity of the commodity receptacle is equal to or greater than a predetermined speed.

US Pat. No. 9,803,933

COLD STORAGE MEDIUM CONTAINER

Sanden Holdings Corporati...

1. A cold storage medium container that is in contact with refrigerant pipes of a cold storage heat exchanger by brazing and
contains a cold storage medium for storing cooling capacity of a refrigerant, wherein
peripheral edge portions of a pair of rectangular container members are brazed to each other to form a rectangular container
body having a cold storage medium filling opening at an end thereof, the container body has therein an inner fin which is
formed in rectangular shape composed of two long sides and two short sides and of which a cross section in parallel with the
short sides is formed in a corrugated shape, and is filled with the cold storage medium through the cold storage medium filling
opening therein,

engagement portions project toward an inside of the container body to engage a part of a corrugated short sides at each end
of the inner fin toward the short sides in the direction in parallel with the long sides, to thereby position the inner fin
in the container body,

a gap is disposed between the corrugated short sides of the positioned inner fin and an inner wall of the container body,
the engagement portions which project toward the inside of the container body protrude from a bottom surface of the container
along the corrugated short sides of the inner fin, and

the corrugated short sides of the inner fin are formed in parallel with short sides of the container body.

US Pat. No. 9,664,423

HEAT EXCHANGER AND HEAT PUMP SYSTEM USING SAME

SANDEN HOLDINGS CORPORATI...

1. A heat exchanger comprising:
a main core portion for conducting heat exchange between air and a refrigerant;
a receiver tank into which the refrigerant having passed through the main core portion flows; and
a subcool core portion for supercooling the refrigerant having passed through the receiver tank by heat exchange with the
air, wherein

the heat exchanger is used for a heat pump system capable of cooling and heating;
the main core portion and the subcool core portion are constituted by a pair of header tanks arranged apart from each other
in a vertical direction, a plurality of tubes arranged so as to extend in the vertical direction between the header tanks
and having the pair of header tanks communicate with each other, and fins provided on the tubes; and

a first channel through which the refrigerant is made to pass in the order of the main core portion, the receiver tank, and
the subcool core portion, and

a second channel through which the refrigerant is made to pass only through the main core portion in a direction opposite
to that of the first channel are provided.

US Pat. No. 9,944,256

VEHICLE AIR CONDITIONER WITH A CONTROLLER FOR JUDGING FROST FORMATION

Sanden Holdings Corporati...

16. A vehicle air conditioner comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
a heat absorber disposed in the air flow passage to let the refrigerant absorb heat;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat;
defrosting means for performing defrosting of the outdoor heat exchanger; and
control means being configured to change and execute at least one of:
a heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator, and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the outdoor heat exchanger;
a dehumidifying and heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator, and the refrigerant by which heat has been radiated is decompressed and then absorbs heat only in the heat absorber or in the heat absorber and the outdoor heat exchanger;
a dehumidifying and cooling mode in which the refrigerant discharged from the compressor radiates heat in the radiator and the outdoor heat exchanger, and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the heat absorber; and
a cooling mode in which the refrigerant discharged from the compressor radiates heat in the outdoor heat exchanger, and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the heat absorber,
wherein in the heating mode and the dehumidifying and heating mode, the control means judges frost formation onto the outdoor heat exchanger on the basis of a refrigerant evaporation pressure PXO of the outdoor heat exchanger and a refrigerant evaporation pressure PXObase of the outdoor heat exchanger during non-frost formation or on the basis of a refrigerant evaporation temperature TXO of the outdoor heat exchanger and a refrigerant evaporation temperature TXObase of the outdoor heat exchanger during the non-frost formation, and performs the defrosting of the outdoor heat exchanger by the defrosting means.

US Pat. No. 9,849,752

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:
a compressor configured to compress and discharge a refrigerant;
a radiator provided in a vehicle interior and configured to release heat from the refrigerant;
a heat exchanger provided in the vehicle interior and configured to absorb the heat into the refrigerant; and
an outdoor heat exchanger provided outside the vehicle interior and configured to release the heat from or absorb the heat
into the refrigerant,

the vehicle air conditioning apparatus performing:
a heating operation to release the heat from the refrigerant discharged from the compressor in the radiator, and to absorb
the heat into the refrigerant in the outdoor heat exchanger; and

a cooling and dehumidifying operation to release the heat from the refrigerant discharged from the compressor in the radiator,
and additionally to release the heat from the refrigerant in the outdoor heat exchanger, and then to absorb the heat into
the refrigerant in the heat exchanger,

the vehicle air conditioning apparatus further comprising:
a flow regulating valve provided in a refrigerant flow passage that allows the refrigerant flowing out of the radiator to
flow into the outdoor heat exchanger, an opening of the flow regulating valve being regulated within following two ranges:
a decompression range that allows the refrigerant flowing through the refrigerant flow passage to be decompressed during the
heating operation; and a condensing pressure regulating range that allows an opening area of the flow regulating valve to
be a same as an opening area of an upstream or downstream refrigerant flow channel when the opening of the flow regulating
valve is maximized, and that can regulate the condensing pressure of the refrigerant in the radiator by regulating an amount
of the refrigerant flowing through the refrigerant flow channel during the cooling and dehumidifying operation; and

a valve opening control part configured to control the opening of the flow regulating valve within the decompression range
during the heating operation, and to control the opening of the flow regulating valve within the condensing pressure regulating
range during the cooling and dehumidifying operation.

US Pat. No. 9,643,470

AIR CONDITIONING DEVICE FOR VEHICLE

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:
a compressor configured to compress and discharge a refrigerant;
a radiator provided in a vehicle interior and configured to release heat from the refrigerant;
a heat exchanger provided in the vehicle interior and configured to absorb the heat into the refrigerant; and
an outdoor heat exchanger provided outside the vehicle interior and configured to release the heat from or absorb the heat
into the refrigerant,

the vehicle air conditioning apparatus performing:
a cooling operation to release the heat from the refrigerant discharged from the compressor in the outdoor heat exchanger,
to decompress the refrigerant by an expansion part, and to absorb the heat into the refrigerant in the heat exchanger;

a cooling and dehumidifying operation to release the heat from the refrigerant discharged from the compressor in the radiator
and the outdoor heat exchanger, to decompress the refrigerant by the expansion part, and to absorb the heat into the refrigerant
in the heat exchanger;

a heating operation to release the heat from the refrigerant discharged from the compressor in the radiator, to decompress
the refrigerant by the expansion part, and to absorb the heat into the refrigerant in the outdoor heat exchanger; and

a heating and dehumidifying operation to release the heat from the refrigerant discharged from the compressor in the radiator,
to decompress part of the refrigerant by the expansion part, and to absorb the heat into the refrigerant in the heat exchanger
while decompressing a remaining refrigerant by the expansion part and then absorbing the heat into the refrigerant in the
outdoor heat exchanger,

the vehicle air conditioning apparatus further comprising:
a flow regulating valve provided in a refrigerant flow passage to flow the refrigerant into the heat exchanger and configured
to regulate an amount of the refrigerant flowing through the refrigerant flow passage;

an evaporating temperature detection part configured to detect an evaporating temperature of the refrigerant in the heat exchanger;
and

a flow control part configured to reduce the amount of the refrigerant flowing into the heat exchanger by using the flow regulating
valve, when the evaporating temperature detected by the evaporating temperature detection part is a predetermined temperature
or lower during the heating and dehumidifying operation.

US Pat. No. 9,518,574

SUCTION MUFFLER FOR COMPRESSOR

SANDEN HOLDINGS CORPORATI...

1. A suction muffler for a compressor, the suction muffler being disposed in a compressor casing at an inlet of a compression
chamber on an upstream side of a refrigerant passage and disposed at a location at which the suction muffler receives oil
sprayed from above in the casing,
wherein an introducing pipe and a leading-out pipe of a refrigerant are connected upward to the suction muffler from beneath
the suction muffler, and

wherein at an outside of connecting portions of the introducing pipe and the leading-out pipe of the refrigerant, each of
which is connected to the suction muffler, a protruding portion which protrudes below the connecting portions and surrounds
the connecting portions is provided,

the suction muffler comprising:
an upper lid member which has an open lower face; and
a lower lid member which has an open upper face and a bottom wall to which the introducing pipe and the leading-out pipe of
the refrigerant are connected,

wherein an inner face of a side wall of the upper lid member is joined to an outer face of a side wall of the lower lid member,
to be fitted and secured thereto, and

wherein the protruding portion is provided by forming a lower end of the side wall of the upper lid member to protrude below
a downward facing surface of the bottom wall of the lower lid member connected with the introducing pipe and the leading-out
pipe of the refrigerant.

US Pat. No. 10,124,650

AUTOMOBILE AIR CONDITIONER HOUSING HAVING A FRAME WITH SLOTS FOR DIFFERENT HEATERS

Sanden Holdings Corporati...

1. An automobile air conditioner which includes an air-cooling heat exchanger and two heating devices for air heating that are provided in series in an air feed passage formed in a housing, and in which an upstream heating device of the two heating devices is selected from two types of heating devices differing in shape and size, whereinthe air-cooling heat exchanger is an evaporator for heat pump cycle and is provided upstream of the two heating devices,
the two heating devices are provided in series and adjacent to each other,
the upstream heating device of the two heating devices is mounted in the housing by being inserted thereto through an insertion/ejection slot formed in a side surface of the housing,
a downstream heating device of the two heating devices is mounted in the housing by being inserted thereto through an insertion/ejection slot formed in a lower surface of the housing,
the insertion/ejection slot of the side surface is formed so as to fit the larger one of the two types of heating devices,
when selected, the smaller one of the two types of heating devices is housed in a frame having an external dimension to fit into the insertion/ejection slot of the side surface, and is mounted in the housing with the frame interposed therebetween,
the downstream heating device is larger than the smaller one of the two types of heating devices,
the frame has an inclined guide surface on a portion, to be located closer to an outlet in an air feed passage direction, of an inner surface thereof, the inclined guide surface being formed so that an opening area of the frame increases toward the downstream heating device,
the larger one of the two types of heating devices is a heater core using, as a heating medium, engine cooling water,
the smaller one of the two types of heating devices is an electric heater, and
the downstream heating device is a condenser for heat pump cycle.

US Pat. No. 10,052,937

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:a compressor configured to compress and discharge a refrigerant;
a radiator configured to release heat from the refrigerant;
a heat exchanger configured to absorb the heat into the refrigerant;
an outdoor heat exchanger configured to release the heat from or absorb the heat into the refrigerant;
a first expansion valve configured to decompress the refrigerant flowing into the outdoor heat exchanger;
a second expansion valve configured to decompress the refrigerant flowing into the heat exchanger;
an accumulator configured to separate the refrigerant into a gas and a liquid and to allow the refrigerant to be sucked into the compressor, the accumulator being provided in a refrigerant flow passage to a suction side of the compressor into which the refrigerant is sucked;
a heating refrigerant circuit configured to allow the refrigerant discharged from the compressor to flow into the radiator and release heat in the radiator, to allow the refrigerant having passed through the radiator to flow into the outdoor heat exchanger via the first expansion valve and absorb the heat in the outdoor heat exchanger, and to allow the refrigerant having passed through the outdoor heat exchanger to be sucked into the compressor via the accumulator;
a heating and dehumidifying refrigerant circuit configured to allow the refrigerant discharged from the compressor to flow into the radiator and release the heat in the radiator, to allow part of the refrigerant having passed through the radiator to flow into the outdoor heat exchanger via the first expansion valve and absorb the heat in the outdoor heat exchanger, to allow a remaining refrigerant having passed through the radiator to flow into the heat exchanger via the second expansion valve and absorb the heat in the heat exchanger, and to allow the refrigerant having passed through the outdoor heat exchanger and the heat exchanger to be sucked into the compressor via the accumulator;
a third expansion valve configured to decompress the refrigerant flowing out of the radiator in the heating refrigerant circuit and the heating and dehumidifying refrigerant circuit;
a gas-liquid separator configured to separate the refrigerant decompressed by the third expansion valve into a gaseous refrigerant and a liquid refrigerant;
a bypass circuit configured to allow part of at least the gaseous refrigerant separated in the gas-liquid separator to flow into a section of the compressor through which the refrigerant being compressed passes;
a fourth expansion valve configured to decompress the refrigerant flowing through the bypass circuit; and
a valve opening control device configured to control an opening of the third expansion valve such that a degree of supercooling of the refrigerant in the radiator is a predetermined value, and to control an opening of the fourth expansion valve such that an amount of the refrigerant flowing through the bypass circuit is a predetermined value.

US Pat. No. 9,895,956

VEHICLE AIR CONDITIONING APPARATUS FOR LOW OUTSIDE AIR TEMPERATURE USE

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:
a compressor configured to compress and discharge a refrigerant;
a radiator configured to release heat from the refrigerant;
a heat exchanger configured to absorb the heat into the refrigerant;
an outdoor heat exchanger configured to release the heat from or absorb the heat into the refrigerant;
a first expansion valve configured to decompress the refrigerant flowing into the outdoor heat exchanger;
a second expansion valve configured to decompress the refrigerant flowing into the heat exchanger;
an accumulator configured to separate the refrigerant into a gas and a liquid and to allow the refrigerant to be sucked into
the compressor, the accumulator being provided in a refrigerant flow passage to a suction side of the compressor into which
the refrigerant is sucked;

a heating refrigerant circuit configured to allow the refrigerant discharged from the compressor to flow into the radiator
and release heat in the radiator, to allow the refrigerant having passed through the radiator to flow into the outdoor heat
exchanger via the first expansion valve and absorb the heat in the outdoor heat exchanger, and to allow the refrigerant having
passed through the outdoor heat exchanger to be sucked into the compressor via the accumulator;

a heating and dehumidifying refrigerant circuit configured to allow the refrigerant discharged from the compressor to flow
into the radiator and release the heat in the radiator, to allow part of the refrigerant having passed through the radiator
to flow into the outdoor heat exchanger via the first expansion valve and absorb the heat in the outdoor heat exchanger, to
allow a remaining refrigerant having passed through the radiator to flow into the heat exchanger via the second expansion
valve and absorb the heat in the heat exchanger, and to allow the refrigerant having passed through the outdoor heat exchanger
and the heat exchanger to be sucked into the compressor via the accumulator;

a third expansion valve configured to decompress the refrigerant flowing out of the radiator in the heating refrigerant circuit
and the heating and dehumidifying refrigerant circuit;

a gas-liquid separator configured to separate the refrigerant decompressed by the third expansion valve into a gaseous refrigerant
and a liquid refrigerant;

a bypass circuit configured to allow part of at least the gaseous refrigerant separated in the gas-liquid separator to flow
into a section of the compressor through which the refrigerant being compressed passes; and

a valve opening control device configured to control opening of the third expansion valve such that the degree of supercooling
of the refrigerant in the radiator is a predetermined value, and to control opening of the first expansion valve such that
the amount of the refrigerant flowing through the bypass circuit is a predetermined value.

US Pat. No. 9,809,081

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:
a compressor configured to compress and discharge a refrigerant;
a radiator configured to release heat from the refrigerant;
a heat exchanger configured to absorb the heat into the refrigerant;
an outdoor heat exchanger configured to release the heat from or absorb the heat into the refrigerant;
an outdoor radiator configured to further release the heat from the refrigerant having released the heat in the outdoor heat
exchanger;

a first operable mode comprising a cooling and/or cooling and dehumidifying refrigerant circuit configured to allow the refrigerant
discharged from the compressor to flow into the radiator, to allow the refrigerant having passed through the radiator to flow
into the outdoor heat exchanger, to allow the refrigerant having passed through the outdoor heat exchanger to flow into the
outdoor radiator, to allow the refrigerant having passed through the outdoor radiator to flow into the heat exchanger via
an expansion valve and to allow the refrigerant having passed through the heat exchanger to be sucked into the compressor;

a second operable mode comprising a heating refrigerant circuit configured to allow the refrigerant discharged from the compressor
to flow into the radiator, to allow the refrigerant having passed through the radiator to flow into the outdoor heat exchanger
via an expansion part, and to allow the refrigerant having passed through the outdoor heat exchanger to be sucked into the
compressor;

a third operable mode comprising a first heating and dehumidifying refrigerant circuit configured to allow the refrigerant
discharged from the compressor to flow into the radiator, to allow part of the refrigerant having passed through the radiator
to flow into the outdoor heat exchanger via the expansion part, to allow remaining refrigerant having passed through the radiator
to flow into the outdoor radiator, to allow the refrigerant having passed through the outdoor radiator to flow into the heat
exchanger via the expansion valve, and to allow the refrigerant having passed through the outdoor heat exchanger and the refrigerant
having passed though the heat exchanger to be sucked into the compressor;

a fourth operable mode comprising a second heating and dehumidifying refrigerant circuit configured to allow the refrigerant
discharged from the compressor to flow into the radiator, to allow the refrigerant having passed through the radiator to flow
into the outdoor radiator, to allow the refrigerant having passed through the outdoor radiator to flow into the heat exchanger
via the expansion valve, and to allow the refrigerant having passed through the heat exchanger to be sucked into the compressor;

an air flow passage configured to allow air to be supplied to a vehicle interior to pass through, the heat exchanger being
disposed in an upstream side of an air flow direction of the air flow passage, and the radiator being disposed downstream
from the heat exchanger;

an outlet switching part configured to switch modes among: a vent mode to blow the air flowing through the air flow passage
toward a head of a passenger in the vehicle interior, a foot mode to blow the air toward feet of the passenger in the vehicle
interior, and a bi-level mode to blow the air toward the head and the feet of the passenger in the vehicle interior, based
on a target air-blowing temperature of the air to be supplied to the vehicle interior in order to set the temperature of the
vehicle interior to a target preset temperature;

an intake air temperature detector configured to detect a temperature of the air flowing into the air flow passage; and
a heating and dehumidifying controller configured to start or stop an operation for the second heating and dehumidifying refrigerant
circuit, based on the temperature detected by the intake air temperature detector, when the outlet switching part sets the
bi-level mode.

US Pat. No. 9,562,712

VEHICULAR AIR-CONDITIONING UNIT

Sanden Holdings Corporati...

1. A vehicular air-conditioning unit in which: a refrigerant circuit includes a compressor, a radiator, an external heat exchanger,
an internal heat exchanger, and a ventilation heat exchanger for absorbing heat from air discharged from a vehicle interior
to outside; during heating, a refrigerant discharged from the compressor releases heat in the radiator into the vehicle interior,
and the refrigerant decompressed after the heat release in the radiator evaporates in at least one of the external heat exchanger
and the ventilation heat exchanger; and during cooling, the refrigerant discharged from the compressor releases heat in the
external heat exchanger, and the refrigerant decompressed after the heat release in the external heat exchanger evaporates
in the internal heat exchanger to absorb heat from the vehicle interior, the vehicular air-conditioning unit comprising
a hot gas cycle circuit for decompressing a part of the refrigerant discharged from the compressor, and causing the decompressed
part of the refrigerant to flow through the internal heat exchanger to release heat into the vehicle interior.

US Pat. No. 9,539,609

METHOD OF COATING LUBRICATION PAINT ON DISK-SHAPED SUBSTRATE

Sanden Holdings Corporati...

1. A method of coating a lubrication paint on a disk-shaped substrate, comprising:
applying a lubrication paint on a sliding portion of a disk-shaped substrate from a paint supply nozzle while rotating the
disk-shaped substrate in the horizontal plane; and

leveling the lubrication paint applied on the sliding portion by contacting the lubrication paint with a doctor knife arranged
at a downstream position in the direction of rotation of the disk-shaped substrate.

US Pat. No. 9,441,576

WASTE HEAT UTILIZATION DEVICE FOR INTERNAL COMBUSTION ENGINE

SANDEN HOLDINGS CORPORATI...

1. A waste heat utilization device for an internal combustion engine, comprising:
a Rankine cycle including an evaporator that evaporates and superheats a working fluid by using waste heat of an internal
combustion engine, a superheater that further superheats the working fluid leaving the evaporator by using the waste heat
of the internal combustion engine, an expander that expands the working fluid discharged from the superheater and generates
a driving force, a condenser that condenses the working fluid discharged from the expander, and a pump that delivers to the
evaporator the working fluid discharged from the condenser; and

an electrical control unit configured to control actuation of the Rankine cycle such that the electrical control unit conducts
flow rate control of the working fluid by:

(a) reducing a rotation frequency of the pump when an expander inlet temperature of the working fluid entering the expander
is lower than a preset expander inlet temperature and a superheat level of the working fluid in the evaporator is equal to
or lower than a preset superheat level, thereby making the working fluid into high-pressure gas obtained by evaporating and
superheating the working fluid in the evaporator, and making the high-pressure gas further superheat in the superheater, and

(b) increasing the rotation frequency of the pump during the flow rate control to increase a flow rate of the working fluid
flowing into the evaporator when the working fluid entering the expander has an expander inlet temperature equal to or higher
than said preset expander inlet temperature, thereby allowing a liquid-phase working fluid that fails to evaporate in the
evaporator to overflow the evaporator, and evaporating and superheating in the superheater the liquid-phase working fluid
that failed to be fully evaporated by the evaporator.

US Pat. No. 9,927,153

HEAT EXCHANGER AND HEAT PUMP SYSTEM USING SAME

SANDEN HOLDINGS CORPORATI...

1. A heat pump system for an air-conditioning device for a vehicle comprising an outdoor heat exchanger used as a condenser or an evaporator, an indoor evaporator and an indoor condenser, the outdoor heat exchanger comprising:a main core portion for performing heat exchange between air and a refrigerant;
a receiver tank into which the refrigerant having flowed through the main core portion flows;
a sub-cool core portion for sub-cooling a liquid refrigerant having flowed through the receiver tank by heat exchange with the air;
a first flow path through which the refrigerant is made to flow in order of the main core portion, the receiver tank, the sub-cool core portion, the indoor evaporator, and the indoor condenser;
a second flow path through which the refrigerant is made to flow in order of the main core portion, the sub-cool core portion, and the indoor condenser by bypassing the receiver tank; and
a flow-path switching means for switching between the first flow path and the second flow path,
wherein when the outdoor heat exchanger is used as a condenser, the refrigerant is made to flow through the first flow path by the flow-path switching means,
wherein when the outdoor heat exchanger is used as an evaporator, the refrigerant is made to flow through the second flow path by the flow-path switching means, and
wherein when the main core portion and the sub-cool core portion are to be defrosted, the refrigerant is made to flow through the second flow path by the flow-path switching means, and when the main core portion and the sub-cool core portion do not require defrosting, the refrigerant is made to flow through the first flow path by the flow-path switching means.

US Pat. No. 9,797,638

COMPRESSOR

SANDEN HOLDINGS CORPORATI...

1. A compressor in which a piston is caused to reciprocate, so that a refrigerant gas drawn from a suction chamber via a suction
hole is compressed and discharged, the compressor comprising:
a partition member that divides the suction chamber, into which the refrigerant gas flows from a suction passage, into a first
space for separating lubricating oil from the refrigerant gas, the first space being connected to the suction passage, and
a second space connected to the suction hole; and

a pressure releasing passage configured to allow the first space and a crank chamber provided at the back of the piston to
be in communication with each other, and to discharge a pressure in the crank chamber,

wherein, in the partition member, a communication passage configured to allow the first space and the second space to be in
communication with each other, and introduce the refrigerant gas, from which the lubricating oil has been separated, from
the first space to the second space, is formed, and a small hole configured to allow the first space and the second space
to be in communication with each other, and allow the lubricating oil stored in the first space to return to the second space,
is formed.

US Pat. No. 9,518,480

EXHAUST HEAT RECOVERY DEVICE

SANDEN HOLDINGS CORPORATI...

1. An exhaust heat recovery device comprising:
a Rankine cycle in which a heater configured to heat and vaporize refrigerant by exhaust heat of an external heat source,
an expander configured to generate power by expanding the refrigerant passed through the heater, a condenser configured to
condense the refrigerant passed through the expander, and a pump configured to send the refrigerant passed through the condenser
to the heater are disposed in a circulation passage of the refrigerant;

a bypass flow passage that allows the refrigerant to circulate while bypassing the expander;
a bypass valve that opens and closes the bypass flow passage;
a pressure difference determining unit that determines a pressure difference between a high-pressure side and a low-pressure
side of the Rankine cycle; and

a control unit that executes start-up control of the Rankine cycle, the start-up control actuating the pump with the bypass
valve open and then closing the bypass valve,

wherein the control unit repeatedly executes the start-up control when the pressure difference after closing the bypass valve
does not reach a start-up completion determination value of the Rankine cycle within a predetermined time, and

wherein the control unit changes a valve-closing condition of the bypass valve each time the start-up control is repeated.

US Pat. No. 9,515,534

ELECTROMAGNETIC COUPLING DEVICE HAVING ELECTROMAGNETIC COIL WITH ENDS FORMED BY TERMINAL LINES OF DIFFERENT METAL MATERIAL

SANDEN HOLDINGS CORPORATI...

1. An electromagnetic coupling device comprising
an electromagnet including an annular yoke internally provided with an electromagnetic coil, and an insulative terminal casing
fixed to the yoke, wherein

the terminal casing has a first groove to which opposite ends bent in a direction away from each other of a winding of the
electromagnetic coil are fitted, the electromagnetic coil is led into the terminal casing, and a second groove crossing the
first groove,

the terminal casing has a pair of terminal members fitted to the second groove, the terminal members are connected to lead
wires for conduction to the ends of the winding, and for connection with an external electric circuit for supplying a power
the terminal member has a connection piece having a slit into to which each of the ends of the winding extending across the
second groove is press-fitted, and

materials forming the winding of the electromagnetic coil and the connection piece are different kinds of metal materials,
the opposite ends of the winding of the electromagnetic coil are respectively connected to terminal lines by caulking coil
terminals, the terminal lines are made of a metal material that is different in kind from the material forming the winding
of the electromagnetic coil, an end of each terminal line forms an end of the electromagnetic coil and is fitted to the first
groove, and the terminal line, made of a material that is the same in kind as the material forming the connection piece, is
fitted to the slit formed in the connection piece.

US Pat. No. 10,066,642

CENTRIFUGAL AIR BLOWER

Sanden Holdings Corporati...

1. A centrifugal air blower comprising:a fan composed of a bottom plate fixed to a rotating shaft, a plurality of blades whose bases are fixed to an outer circumference of the bottom plate, and an annular rim provided concentrically with the bottom plate to couple distal ends of the blades;
a scroll casing for housing the fan and having a suction port on one end side in an axial direction of the rotating shaft;
a spiral flow passage formed around the fan in the scroll casing; and
a tongue part for suppressing an inflow of air from end of winding to beginning of winding of the spiral flow passage,
the tongue part comprising a linear portion that is substantially parallel to an axis of the rotating shaft, a first overhanging section formed on the one end side in the axial direction of the rotating shaft, and a second overhanging section formed on an other end side in the axial direction of the rotating shaft,
wherein the first overhanging section is inclined to increase a first dimension of overhanging in the counter-rotating direction of the fan toward the one end side in the axial direction of the rotating shaft,
and the second overhanging section is inclined to increase a dimension of overhanging in a counter-rotating direction of the fan toward the other end side in the axial direction of the rotating shaft;
characterized in that the first overhanging section forms a first obtuse angle with respect to the linear portion and the second overhanging section forms a second obtuse angle with respect to the linear portion; and
wherein the first obtuse angle is different than the second obtuse angle.

US Pat. No. 10,040,337

VEHICLE AIR CONDITIONER

Sanden Holdings Corporati...

1. A vehicle air conditioner comprising:a compressor which compresses a refrigerant;
a radiator which lets the refrigerant radiate heat to heat air to be supplied into a vehicle interior;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant absorb heat;
an expansion valve which decompresses the refrigerant flowing into the outdoor heat exchanger; and
control means,
the control means being configured to let the refrigerant discharged from the compressor radiate heat in the radiator, decompress the refrigerant by which heat has been radiated by the expansion valve and then absorb heat in the outdoor heat exchanger, thereby heating the vehicle interior,
wherein the control means controls a subcool degree of the refrigerant in the radiator by the expansion valve, and controls a revolution number of the compressor on the basis of a high pressure, and
has a high pressure priority mode to increase a target radiator subcool degree of the radiator in a direction in which the high pressure is set to a predetermined high value, and
a revolution number priority mode to decrease the target radiator subcool degree of the radiator in a direction in which the revolution number of the compressor is set to a predetermined high value.

US Pat. No. 10,012,218

VARIABLE DISPLACEMENT COMPRESSOR AND SWASH PLACE LINKAGE CONNECTION

SANDEN HOLDINGS CORPORATI...

1. A variable displacement compressor comprising:a housing in which a discharge chamber, a suction chamber, a crank chamber and cylinder bores are defined,
pistons inserted into said cylinder bores,
a drive shaft supported rotatably in said housing,
a rotor fixed synchronously rotatably to said drive shaft,
a swash plate linked with said rotor via a linking means, the swash plate being configured to rotate synchronously with said rotor and being attached slidably to said drive shaft so that an inclination angle of the swash plate is changeable relative to an axis of said drive shaft,
a minimum inclination angle regulating means for regulating a minimum inclination angle of said swash plate to approximately 0°, when said inclination angle of said swash plate orthogonal to said axis of said drive shaft is defined as 0°,
an inclination angle increasing spring mounted on said drive shaft and configured to urge said swash plate in a direction of increasing said inclination angle from said minimum inclination angle,
an inclination angle decreasing spring mounted on said drive shaft and configured to urge said swash plate in a direction of decreasing said inclination angle from a maximum inclination angle through said minimum inclination angle,
a conversion mechanism disposed between said pistons and said swash plate for converting rotational motion of said swash plate into reciprocating movement of said pistons,
a control valve for controlling a pressure in said crank chamber, which control valve changes said inclination angle of said swash plate by varying a pressure difference between said crank chamber and said suction chamber to adjust a stroke of said pistons, compresses a refrigerant sucked from said suction chamber into cylinder bores and discharges a compressed refrigerant into said discharge chamber, and
a linking body of said drive shaft,
wherein said rotor, said linking means and said swash plate are configured so that:
in a case in which said drive shaft is not rotated, said inclination angle of said swash plate is positioned at a predetermined inclination angle ?a at which a sum of an urging force of said inclination angle decreasing spring and an urging force of said inclination angle increasing spring becomes zero; and
in a case in which said drive shaft is rotated at a position of said predetermined inclination angle ?a with the inclination angle of said swash plate, a moment of rotational motion MS based on a setting of a product of inertia in a variable-angle direction of said swash plate, the moment of rotational motion MS being adjustable by setting of a shape, a mass and a center of gravity of said swash plate, acts in said inclination angle decreasing direction to decrease said inclination angle of said swash plate from said predetermined inclination angle ?a, and whereby a moment MF based on a combined force of said urging force of said inclination angle decreasing spring and said urging force of said inclination angle increasing spring acts in said inclination angle increasing direction, thereby said inclination angle of said swash plate being positioned autonomously at a predetermined inclination angle ?b at which a sum of said moment MS and said moment MF becomes zero, and said sum of said moment MS and said moment MF is set in said inclination angle increasing direction at said minimum inclination angle of approximately 0°,
wherein said urging force of said inclination angle increasing spring, said urging force of said inclination angle decreasing spring and said product of inertia in said variable-angle direction of said swash plate are such that said predetermined inclination angle ?b is positioned at a minimum angle in a range of inclination angle, such that, at a time of a maximum operational rotational speed of the swash plate, the angle ?b balanced by the moment MS due to the product of inertia and the moment MF based on the combined force of said urging force of said inclination angle decreasing spring and said urging force of said inclination angle increasing spring is set at the minimum inclination angle in a case in which compression operation is performed, and wherein said predetermined inclination angle ?b is approximately 1°±0.5°.

US Pat. No. 9,944,151

VEHICLE AIR CONDITIONER

Sanden Holdings Corporati...

1. A vehicle air conditioner comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
a heat absorber disposed in the air flow passage to let the refrigerant absorb heat;
an injection circuit which distributes a part of the refrigerant flowing out from the radiator to return the part to the middle of the compression by the compressor;
decompressing means for decompressing the refrigerant flowing through the injection circuit;
a discharge side heat exchanger which performs heat exchange between the refrigerant decompressed by the decompressing means and the refrigerant discharged from the compressor before flowing into the radiator;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat; and
control means,
at least the control means being configured to execute a heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the outdoor heat exchanger,
the vehicle air conditioner comprising:
a bypass circuit disposed from a refrigerant outlet side of the radiator to a suction side of the compressor,
wherein the control means has a mode in which all or a part of the refrigerant flowing out from the radiator is passed through the bypass circuit and is not passed through the outdoor heat exchanger but is returned to the suction side of the compressor.

US Pat. No. 9,878,595

CONTROL MEANS FOR THE COMPRESSOR OF A VEHICLE AIR CONDITIONER BASED ON TARGET HIGH PRESSURE

Sanden Holdings Corporati...

1. A vehicle air conditioner comprising:
a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant absorb heat; and
control means,
the control means being configured to let the refrigerant discharged from the compressor radiate heat in the radiator, decompress
the refrigerant by which heat has been radiated and then let the refrigerant absorb heat in the outdoor heat exchanger, thereby
heating in the vehicle interior,

wherein the control means controls the compressor on the basis of a target high pressure, and corrects the target high pressure
on the basis of a refrigerant subcool degree of the radiator,

wherein the control means makes a correction so that the larger the refrigerant subcool degree of the radiator is, the higher
the target high pressure becomes, and

wherein the control means makes the correction so that as the vehicle velocity decreases, the target high pressure increases.

US Pat. No. 9,821,635

APPARATUS FOR CONTROLLING IN-VEHICLE HEATER

SANDEN HOLDINGS CORPORATI...

1. An apparatus for controlling a heater in a vehicle, the heater generating heat by energization to heat a heating medium
for heating, the apparatus comprising:
two switching devices that are disposed in an energization circuit for the heater to be in series with the heater on a power-supply
side and on a ground side of the heater, the two switching devices being capable of turning energization ON and OFF;

a driver that drives ON and OFF the two switching devices; and
a microprocessor that generates an instruction signal to the driver in response to a heating request;
a single first temperature sensor that is provided at a position at which temperature of the two switching devices can be
measured and measures the temperature of the two switching devices; and

a single comparator that is provided so as to correspond to the single first temperature sensor and receives a signal from
the first temperature sensor and transmits a signal when temperature of the two switching devices is equal to or greater than
a predetermined temperature,

wherein the two switching devices are configured to forcibly turn OFF via the driver in response to the signal from the comparator.

US Pat. No. 9,784,272

SCROLL-TYPE FLUID MACHINE

Sanden Holdings Corporati...

1. A scroll-type fluid machine comprising:
a scroll unit including a fixed scroll and a movable scroll, which respectively have a spiral wrap standing on a bottom plate
with a spiral center of the wrap eccentric to a center of the bottom plate and which are meshed with respective wraps facing
each other to form sealed spaces; and

a rotation-inhibiting mechanism in which at least three or more rotation-inhibiting parts are arranged in a circumferential
direction of the movable scroll, each rotation-inhibiting part being composed of a circular hole formed in either one of a
back face of the bottom plate of the movable scroll and a housing wall facing the back face, and a pin protruding on the other
in a form of being engaged with the circular hole,

where while the rotation-inhibiting mechanism inhibit the rotation of the movable scroll, the movable scroll is orbited around
a shaft center of the fixed scroll to change volumes of the sealed spaces,

wherein in the rotation-inhibiting mechanism, at least one of the rotation-inhibiting parts is arranged to locate a center
of the circular hole on a straight line extending perpendicularly to a straight line connecting the bottom plate center of
the movable scroll and the spiral center of the wrap and passing through the bottom plate center.

US Pat. No. 9,765,765

THREE-BORE VARIABLE DISPLACEMENT COMPRESSOR WITH A SWASH PLATE HAVING AN ADJUSTABLE INCLINE

SANDEN HOLDINGS CORPORATI...

1. A variable displacement compressor comprising:
a cylinder block in which a plurality of cylinder bores arranged annually and a center bore positioned within the plurality
of cylinder bores are formed;

a front housing that blocks one end of the cylinder block, and defines a crank chamber together with the cylinder block;
a valve plate that blocks the other end of the cylinder block, and in which a discharge hole and a suction hole communicating
with each of the plurality of cylinder bores are formed;

a cylinder head that is provided opposite to the cylinder block with the valve plate in between, and in which one of a suction
chamber and a discharge chamber is formed in a center part and the other one of the suction chamber and the discharge chamber
is formed in an annular part outside the center part, the suction chamber communicating with a suction-side external refrigerant
circuit, and the discharge chamber communicating with a discharge-side external refrigerant circuit;

a piston that is disposed in each of the plurality of cylinder bores, and reciprocates in an axial direction of a drive shaft;
the drive shaft one end of which is inserted into the center bore, and that is radially supported by the cylinder block via
a plain bearing;

a rotor that is fixed to the drive shaft, and rotates integrally with the drive shaft;
a swash plate that is connected to the rotor via a connecting unit, and slidably attached to the drive shaft so that the swash
plate has a variable inclination angle with respect to an axis of the drive shaft when rotating synchronously with the rotor;

a conversion mechanism that converts rotation of the swash plate into reciprocation of the piston;
a pressure supply path that communicates between the discharge chamber and the crank chamber;
a control valve that adjusts an opening of the pressure supply path; and
a pressure release path that communicates between the crank chamber and the suction chamber,
wherein a pressure in the crank chamber is changed by adjusting the opening by the control valve to change the inclination
angle of the swash plate and adjust a stroke of the piston, and a refrigerant sucked into the cylinder bore from the suction
chamber is compressed and discharged into the discharge chamber,

wherein a downstream part of the pressure supply path includes:
an upstream path formed inside the drive shaft and being along a center axis of the drive shaft; and
a downstream path intersecting and connecting to the upstream path inside the drive shaft, and having an open end communicating
with the crank chamber,

wherein the center bore includes:
a first bore that supports the plain bearing;
a second bore that is positioned between the first bore and the valve plate and positioned in a manner such that a peripheral
wall thereof on a valve plate side is radially outside of the first bore; and

a third bore that is connected to the crank chamber and positioned in a manner such that a peripheral wall thereof is radially
outside of the first bore, the third bore having a bottom wall connecting the peripheral wall and the first bore,

wherein the pressure supply path includes:
the second bore;
a first path that communicates between the second bore and the discharge chamber;
a second path that communicates with the second bore, and is formed inside the drive shaft so as to extend from one end surface
of the drive shaft toward the center axis of the drive shaft to constitute the upstream path; and

a third path that is substantially orthogonally communicated to the second path inside the drive shaft and opens to an outer
peripheral surface of the drive shaft, and communicates with the crank chamber to constitute the downstream path, and

wherein a position of an axis of the third path in the axial direction of the drive shaft is in the third bore and near an
axial position of an end surface of the cylinder bore on a crank chamber side, and the third path opens to the peripheral
wall of the third bore.

US Pat. No. 9,873,307

VEHICULAR AIR CONDITIONER

Sanden Holdings Corporati...

1. A vehicular air conditioner comprising:
a compressor which compresses a refrigerant;
a radiator which lets the refrigerant radiate heat to heat air to be supplied to a vehicle interior;
a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied to the vehicle interior;
an outdoor heat exchanger disposed outside of the vehicle interior to let the refrigerant radiate heat; and
control means,
the vehicular air conditioner executing a dehumidifying and cooling mode in which the control means lets the refrigerant discharged
from the compressor to radiate heat in the radiator and in the outdoor heat exchanger or only in the radiator, decompresses
the refrigerant by which heat has been radiated and then lets the refrigerant absorb heat in the heat absorber,

the vehicular air conditioner comprising:
an injection circuit which distributes a part of the refrigerant flowing out from the radiator to return the part of the refrigerant
to the compressor,

wherein in the dehumidifying and cooling mode, the control means operates the injection circuit to return the refrigerant
to the compressor, when there is established predetermined radiator capability shortage condition on which a heating capability
of the radiator runs short and/or a predetermined low outdoor air temperature startup condition on which startup is performed
at the low outdoor air temperature.

US Pat. No. 9,599,015

DEVICE FOR UTILIZING WASTE HEAT FROM ENGINE

SANDEN HOLDINGS CORPORATI...

2. A device for utilizing waste heat from an engine, comprising:
a Rankine cycle device provided in a circulation passage of a refrigerant with an evaporator that evaporates the refrigerant
by heating the refrigerant by the waste heat of the engine, an expander that expands the refrigerant which has passed through
the evaporator to thereby generate power, a condenser that condenses the refrigerant which has passed through the expander,
and a pump that delivers the refrigerant which has passed through the condenser to the evaporator, and provided with an expander
bypass passage that allows the refrigerant to circulate while bypassing the expander, and a bypass valve that opens and closes
the expander bypass passage;

a transmission mechanism that transmits an output torque of the Rankine cycle device to the engine; and
a calculation processing unit that calculates the output torque of the Rankine cycle device and outputs the calculated output
torque of the Rankine cycle device to an engine control unit that performs output control of the engine,

wherein the engine control unit sets a target torque of the engine from the output torque of the Rankine cycle and a required
torque calculated based on operating conditions of the engine, and controls a fuel injection amount into the engine based
on the set target torque of the engine,

wherein the calculation processing unit has:
a first torque estimation portion that estimates a torque of the expander in a state in which the bypass valve is open, based
on a refrigerant pressure on the high pressure side of the Rankine cycle device and a refrigerant pressure on the low pressure
side thereof; and

a second torque estimation portion that estimates a torque of the expander in a state in which the bypass valve is closed,
based on the refrigerant pressure on the high pressure side of the Rankine cycle device and the refrigerant pressure on the
low pressure side thereof, and

wherein the output torque of the Rankine cycle device is calculated based on the torque estimated value by the first torque
estimation portion or the torque estimated value by the second torque estimation portion to adjust the bypass valve to open
or close the expander bypass passage.

US Pat. No. 9,586,230

METHOD OF COATING LUBRICATION PAINT ON DISK-SHAPED SUBSTRATE

Sanden Holdings Corporati...

1. A method of coating a lubrication paint on a disk-shaped substrate, comprising:
applying a lubrication paint on a sliding portion of a disk-shaped substrate from a paint supply nozzle while rotating the
disk-shaped substrate in the horizontal plane; and

leveling the lubrication paint applied on the sliding portion by contacting the lubrication paint with a doctor knife arranged
at a downstream position in the direction of rotation of the disk-shaped substrate.

US Pat. No. 9,441,503

WASTE HEAT UTILIZATION APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A waste heat recovery system comprising:
a Rankine cycle including:
a heat exchanger that recovers waste heat from an engine with a refrigerant,
an expander that produces power by using the refrigerant that exits the heat exchanger,
a condenser that condenses the refrigerant that exits the expander, and
a refrigerant pump that supplies the refrigerant that exits the condenser to the heat exchanger;
a power transmission mechanism including a belt, a pump pulley, and a crank pulley, that transmits the power regenerated by
the expander to the engine; and

an engine controller, wherein:
the power transmission mechanism further includes an expander clutch to disconnect and connect the power being transmitted
from the expander to the engine,

the expander includes a rotational speed sensor that detects a rotational speed of the expander, and
the engine controller, when the expander clutch is disconnected, determines an increase in friction of the expander based
on an increase in the rotational speed of the expander being detected by the rotational speed sensor.

US Pat. No. 9,937,771

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:a compressor configured to compress and discharge a refrigerant;
a radiator configured to release heat from the refrigerant;
a heat exchanger configured to absorb the heat into the refrigerant;
an outdoor heat exchanger configured to release the heat from or absorb the heat into the refrigerant;
a heating refrigerant circuit configured to allow the refrigerant discharged from the compressor to flow into the radiator, to allow the refrigerant to flow into the outdoor heat exchanger via an expansion part, and allow the refrigerant to be sucked into the compressor;
a heating and dehumidifying refrigerant circuit configured to allow the refrigerant discharged from the compressor to flow into the radiator, to allow part of the refrigerant to flow into the heat exchanger via the expansion part while allowing a remaining refrigerant to flow into the outdoor heat exchanger via the expansion part, and to allow the refrigerant to be sucked into the compressor;
a cooling, or cooling and dehumidifying refrigerant circuit configured to allow the refrigerant discharged from the compressor to flow into the radiator, to allow the refrigerant to flow into the outdoor heat exchanger, to allow the refrigerant to flow into the heat exchanger via the expansion part and to allow the refrigerant to be sucked into the compressor; and
a high-pressure refrigerant flow regulating valve provided in a refrigerant flow passage between the radiator and the outdoor heat exchanger in the cooling, or cooling and dehumidifying refrigerant circuit, the high-pressure refrigerant flow regulating valve being able to regulate an amount of the refrigerant flowing out of the radiator and into the outdoor heat exchanger.

US Pat. No. 9,855,822

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:
a compressor configured to compress and discharge a refrigerant;
a radiator provided in a vehicle interior and configured to release heat from the refrigerant;
a heat exchanger provided in the vehicle interior and configured to absorb the heat into the refrigerant; and
an outdoor heat exchanger provided outside the vehicle interior and configured to release the heat from or absorb the heat
into the refrigerant,

the vehicle air conditioning apparatus performing:
a heating operation to release the heat from the refrigerant discharged from the compressor in the radiator, and to absorb
the heat into the refrigerant in the outdoor heat exchanger; and

a cooling and dehumidifying operation to release the heat from the refrigerant discharged from the compressor in the radiator,
and additionally to release the heat from the refrigerant in the outdoor heat exchanger, and then to absorb the heat into
the refrigerant in the heat exchanger,

the vehicle air conditioning apparatus further comprising:
an expansion valve provided in a refrigerant flow passage between the radiator and the outdoor heat exchanger during the heating
operation, the expansion valve having an adjustable opening and configured to decompress the refrigerant flowing through the
refrigerant flow passage;

a condensing pressure regulating valve provided in a refrigerant flow passage parallel to the refrigerant flow passage in
which the expansion valve is provided, the condensing pressure regulating valve configured to regulate an amount of the refrigerant
flowing out of the radiator and into the outdoor heat exchanger to regulate a condensing pressure of the refrigerant in the
radiator during the cooling and dehumidifying operation; and

a valve opening control part configured to close a refrigerant flow channel to the condensing pressure regulating valve to
control the opening of the expansion valve during the heating operation, and configured to close a refrigerant flow channel
to the expansion valve to control an opening of the condensing pressure regulating valve during the cooling and dehumidifying
operation.

US Pat. No. 9,796,247

VEHICLE AIR CONDITIONER WITH ENLARGED EFFECTIVE RANGE OF A DEHUMIDIFYING AND COOLING MODE

Sanden Holdings Corporati...

1. A vehicle air conditioner comprising:
a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
a heat absorber disposed in the air flow passage to let the refrigerant absorb heat;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat;
an expansion valve which decompresses the refrigerant flowing into the outdoor heat exchanger; and
control means being configured to change and execute at least one of:
a heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator, and the refrigerant
by which heat has been radiated is decompressed and then absorbs heat in the outdoor heat exchanger;

a dehumidifying and cooling mode in which the refrigerant discharged from the compressor radiates heat in the radiator and
the outdoor heat exchanger and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the
heat absorber; and

a cooling mode in which the refrigerant discharged from the compressor radiates heat in the outdoor heat exchanger and the
refrigerant by which heat has been radiated is decompressed and then absorbs heat in the heat absorber,

wherein in at least the dehumidifying and cooling mode, the control means controls a capability of the compressor on the basis
of a temperature of the heat absorber, and controls a valve position of the expansion valve on the basis of a temperature
or a pressure of the radiator, and

executes a radiator temperature prior mode to enlarge the capability of the compressor, in a case where heat radiation in
the radiator runs short.

US Pat. No. 9,797,656

VEHICLE INTERIOR HEAT EXCHANGER AND INTER-HEADER CONNECTING MEMBER OF VEHICLE INTERIOR HEAT EXCHANGER

SANDEN HOLDINGS CORPORATI...

1. A vehicle interior heat exchanger of a vehicular air conditioner, the vehicle interior heat exchanger comprising:
an upstream tube group and a downstream tube group, the tube groups each having a plurality of stacked refrigerant circulation
tubes and being aligned in an air-blowing direction of a vehicle interior air-blowing path; and

a pair of headers communicated and connected with a same end side of the refrigerant circulation tubes of the respective tube
groups, in which at least portions of internal spaces of the pair of headers are connected with each other in a communicating
manner via a communication hole, wherein

a total cross-sectional area of the communication hole allowing the internal spaces to communicate with each other is set
such that a percentage of the total cross-sectional area of the communication hole, with respect to a total cross-sectional
area of a channel on an uppermost stream side of the upstream tube group, is in a range of 38% to 65%,

wherein a plurality of boss portions formed on a connecting member so as to protrude from both sides of a flat plane of the
connecting member, the boss portions penetrating through and being connected with pipe walls of the pair of headers, wherein
the boss portions can be formed by a pair of plate members, each of which formed by burring so as to protrude from the surface
of one side, superimposed in opposite directions, and fixed by brazing,

wherein the headers communicate with each other via a plurality of communication holes formed inside the boss portions, and
wherein an outer diameter of each of the boss portions is smaller than an interval between the refrigerant circulation tubes
adjacent to each other, and the boss portion is disposed between the refrigerant circulation tubes.

US Pat. No. 9,664,412

HEATING DEVICE

Sanden Holdings Corporati...

1. A heating device,
wherein the heating device is constituted of a case including therein a flow path through which a heat medium flows, and a
heating element disposed in the flow path of the case to heat the heat medium,

wherein the case comprises a first case section and a second case section each of which has at least one opened surface and
which are connected to each other in a state where respective openings are made to abut on each other, and a plate-like gasket
which is interposed between abutment portions of the first case section and the second case section, and seals a space between
both the case sections,

wherein at least a part of the gasket is positioned in the flow path, to control the flow of the heat medium in the flow path,
wherein the gasket has a wall section positioned in the flow path, and a passage portion opened in the wall section, and
wherein in the gasket, the flow path of a portion where air is easily retained in the case is narrowed by an opening dimension
and/or a shape of the passage portion formed in the wall section.

US Pat. No. 9,595,899

MOTOR CONTROL DEVICE

SANDEN HOLDINGS CORPORATI...

1. A motor control method for controlling a synchronous motor with a start mode in which a rotor is rotated by forced commutation
control, the motor control method comprising:
storing a current value at the time when a stop command to the synchronous motor is issued;
storing a rotation speed value when the stop command to the synchronous motor is issued; and
deciding a target current value in the start mode based on the stored current value and the stored rotation speed value, when
a start command to the synchronous motor is issued after the issuance of the stop command.

US Pat. No. 9,523,290

RANKINE CYCLE

SANDEN HOLDINGS CORPORATI...

1. A Rankine cycle system for a vehicle driven by an engine that is cooled by refrigerant, the system comprising:
a refrigerant pump installed in the vehicle and circulating the refrigerant;
a heat exchanger collecting waste heat of the engine with the refrigerant;
an expander converting the waste heat collected with the refrigerant into driving force by expanding the refrigerant;
a condenser condensing the refrigerant expanded by the expander;
a power transmission path extending from the engine to the refrigerant pump, the power transmission path including a clutch;
a refrigerant path circulating the refrigerant among the refrigerant pump, the heat exchanger, the expander, and the condenser;
a bypass path connected to the refrigerant path to make the refrigerant bypass the expander; and
a controller configured to
determine whether a Rankine cycle operation condition is met;
perform a Rankine cycle operation of the Rankine cycle system, in which the clutch is fastened and the refrigerant pump is
driven with a driving force of the engine while circulating the refrigerant through the refrigerant path without making the
refrigerant bypass the expander, when the Rankine cycle operation condition is met; and

perform, prior to performing the Rankine cycle operation, a preliminary operation of the Rankine cycle system, in which the
clutch is fastened and the refrigerant pump is driven with a vehicle inertia force while causing the bypass path to make the
refrigerant bypass the expander, during deceleration of the vehicle.

US Pat. No. 10,047,988

VEHICLE AIR CONDITIONER

Sanden Holdings Corporati...

1. A vehicle air conditioner comprising:a compressor which compresses a refrigerant;
a radiator which lets the refrigerant radiate heat to heat air to be supplied to a vehicle interior;
a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied to the vehicle interior;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant absorb heat; and
control means,
the vehicle air conditioner executing a dehumidifying and heating mode in which the control means is configured to let the refrigerant discharged from the compressor radiate heat in the radiator, decompress the refrigerant by which heat has been radiated and then absorb heat in the heat absorber and the outdoor heat exchanger or only in the heat absorber, thereby heating the vehicle interior while dehumidifying the vehicle interior,
the vehicle air conditioner comprising an injection circuit which distributes a part of the refrigerant flowing out from the radiator to return the part of the refrigerant to the compressor,
wherein in the dehumidifying and heating mode, the control means is configured to operate the injection circuit, and return the refrigerant to the compressor in a case where there is established one of a predetermined heating capability shortage condition on which a heating capability runs short, a predetermined dehumidifying capability excess condition on which a dehumidifying capability becomes excessive and a predetermined low outdoor air temperature startup condition on which startup is made at a low outdoor air temperature, or any combination of the conditions,
wherein the control means is configured to judge that the dehumidifying capability excess condition is established, in a case where a difference between a target radiator temperature and a temperature of the radiator decreases, a difference between a target radiator pressure and a pressure of the radiator decreases, and the temperature of the heat absorber lowers.

US Pat. No. 9,957,845

EXHAUST HEAT RECOVERY DEVICE

SANDEN HOLDINGS CORPORATI...

1. An exhaust heat recovery device comprising:a Rankine cycle that is provided with: a heater configured to heat and vaporize refrigerant by exhaust heat of an engine; an expander configured to expand the refrigerant passed through the heater to generate power; a condenser configured to condense the refrigerant passed through the expander; and a pump configured to send the refrigerant passed through the condenser to the heater, the heater, the expander, the condenser, and the pump being arranged in a refrigerant circulating passage;
a bypass flow passage that allows the refrigerant to circulate while bypassing the expander;
a bypass valve that opens and closes the bypass flow passage;
a power transmission mechanism that has a clutch mechanism and is capable of transmitting power between the expander and the engine when the clutch mechanism is engaged; and
a control unit that, at the time of stopping the Rankine cycle, executes control to open the bypass valve and then to disengage the clutch mechanism when a waiting time has elapsed, the waiting time being set depending on operation states or operation conditions of the Rankine cycle before the bypass valve is opened or at the point of time when the bypass valve is opened.

US Pat. No. 9,587,748

CONTROL VALVE AND VARIABLE-DISPLACEMENT COMPRESSOR PROVIDED WITH SAID CONTROL VALVE

SANDEN HOLDINGS CORPORATI...

1. A control valve comprising:
a valve unit having a valve body that opens and closes a fluid passage in a valve housing, and a movable iron core coupled
with the valve body;

a housing member which is formed into a tubular shape with a bottom and slidably houses at least the movable iron core; and
a coil unit having a drive coil portion housed in a solenoid housing fixed to the valve housing to be disposed around the
housing member, and an end portion member integrated with the drive coil portion and formed to cover a tube bottom side end
portion of the housing member,

the control valve being configured to drive and control the valve unit by an electromagnetic force generated by the drive
coil portion, thereby adjusting an opening degree of the valve body,

wherein a first damping member is disposed between a bottom wall of the housing member and the end portion member.

US Pat. No. 9,517,680

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:
a compressor configured to compress and discharge a refrigerant;
a radiator provided in a vehicle interior and configured to release heat from the refrigerant;
a heat exchanger provided in the vehicle interior and configured to absorb the heat into the refrigerant; and
an outdoor heat exchanger provided outside the vehicle interior and configured to release the heat from or absorb the heat
into the refrigerant,

the vehicle air conditioning apparatus configured to perform:
a heating operation to release the heat from the refrigerant discharged from the compressor in the radiator, to decompress
the refrigerant by an expansion valve, and to absorb the heat into the refrigerant in the outdoor heat exchanger; and

a heating and dehumidifying operation to release the heat from the refrigerant discharged from the compressor in the radiator,
to decompress the refrigerant by the expansion valve and to absorb the heat into the refrigerant in the heat exchanger and
the outdoor heat exchanger, or at least in the heat exchanger,

the vehicle air conditioning apparatus further comprising:
an indoor fan configured to allow air to flow, the air being subjected to a heat exchange with the refrigerant flowing through
both or one of the radiator and the heat exchanger and then blowing to the vehicle interior;

a target supercooling setting part configured to set a target degree of supercooling of the refrigerant such that the target
degree of supercooling of the refrigerant flowing out of the radiator when a target air temperature of the air having been
heated in the radiator is higher than a predetermined temperature is higher than the target degree of supercooling that is
set when the target air temperature is lower than the predetermined temperature; and

a valve opening control part configured to control an opening of the expansion valve such that a degree of supercooling of
the refrigerant flowing out of the radiator is the target degree of supercooling set by the target supercooling setting part,
wherein:

the target supercooling setting part includes a first correction part configured to correct the set target degree of supercooling
according to an amount of the air supplied from the indoor fan; and

the target supercooling setting part corrects the target degree of supercooling such that when the amount of the air supplied
from the indoor fan is smaller than a predetermined value, the degree of supercooling is lower than the target degree of supercooling
that is corrected when the amount of the air supplied from the indoor fan is the predetermined value or greater.

US Pat. No. 10,060,654

HEAT PUMP TYPE HEATING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A heat pump type heating apparatus characterized by comprising:a dual-stage heat pump unit including
a low stage side refrigeration circuit formed by annularly connecting, in order, a low stage side compressor, a low stage side heating medium-refrigerant heat exchanger, a cascade heat exchanger, low stage side decompressing means, and an evaporator, so as to circulate a refrigerant therethrough, and
a high stage side refrigeration circuit formed by annularly connecting, in order, a high stage side compressor, a high stage side heating medium-refrigerant heat exchanger, high stage side decompressing means, and the cascade heat exchanger, so as to circulate a refrigerant therethrough; and
a heating unit having a heating medium circuit including a circulation pump, a heating terminal, the low stage side heating medium-refrigerant heat exchanger, and the high stage side heating medium-refrigerant heat exchanger, so as to circulate a heating medium therethrough, wherein
the heat pump type heating apparatus further includes
an internal heat exchanger that performs heat exchange between a low-temperature refrigerant on a low-pressure side of the low stage side refrigeration circuit and a high-temperature refrigerant on a high-pressure side of the high stage side refrigeration circuit,
a bypass pipe bypassing the internal heat exchanger, and
flow path control means that controls a refrigerant flow to each of the internal heat exchanger and the bypass pipe.

US Pat. No. 9,956,847

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:a compressor configured to compress and discharge a refrigerant;
a radiator provided in a vehicle interior and configured to release heat from the refrigerant;
a heat exchanger provided in the vehicle interior and configured to absorb the heat into the refrigerant; and
an outdoor heat exchanger provided outside the vehicle interior and configured to release the heat from or absorb the heat into the refrigerant,
the vehicle air conditioning apparatus performing:
a heating and dehumidifying operation to release the heat from the refrigerant discharged from the compressor in the radiator, to decompress part of the refrigerant by an expansion valve, and to absorb the heat into the refrigerant in the heat exchanger while decompressing a remaining refrigerant by the expansion valve and then absorbing the heat into the refrigerant in the outdoor heat exchanger,
the vehicle air conditioning apparatus further comprising:
an evaporating temperature regulating valve provided in a refrigerant flow passage to an output side of the heat exchanger from which the refrigerant is discharged and configured to regulate an evaporating temperature of the refrigerant in the heat exchanger by regulating an amount of the refrigerant flowing through the refrigerant flow passage; and
a valve opening control part configured to control an opening of the evaporating temperature regulating valve during the heating and dehumidifying operation,
wherein the opening of the evaporating temperature regulating valve can be set to two different openings, and the valve opening control part sets the opening to one of the two different openings.

US Pat. No. 9,970,329

EXHAUST HEAT RECOVERY DEVICE

Sanden Holdings Corporati...

1. An exhaust heat recovery device comprising:a Rankine cycle device that is provided with: a heater configured to heat and vaporize a refrigerant with exhaust heat of an engine; an expander configured to expand the refrigerant passed through the heater to generate power; a condenser configured to condense the refrigerant passed through the expander; and a pump configured to send the refrigerant passed through the condenser to the heater, the heater, the expander, the condenser, and the pump being arranged in a refrigerant circulation passage;
a power transmission mechanism that has a clutch and is capable of transmitting power between the engine and the Rankine cycle device when the clutch is engaged; and
a clutch control unit that controls engagement and disengagement of the clutch based on a first correlation value correlated with consumed power when the Rankine cycle device is started, and a second correlation value correlated with consumed power of the Rankine cycle device when the output thereof is negative during operation thereof after start-up,
wherein the clutch control unit disengages the clutch when an absolute value of the second correlation value is greater than or equal to an absolute value of the first correlation value during the engagement of the clutch.

US Pat. No. 9,595,853

ELECTRIC COMPRESSOR

SANDEN HOLDINGS CORPORATI...

1. An electric compressor which compresses a refrigerant by driving a compression mechanism with a motor which is controlled
to drive with a drive circuit, a lead pin connected to an electric current output section of the drive circuit, and a connector
attached to the lead pin to electrically connect the electric current output section with an electric current input section
of the motor, wherein the connector comprises a connector terminal which contacts the lead pin to attach the connector to
the lead pin, a connector housing which houses the connector terminal, a vacuum flow path which communicates an inside with
an outside of the connector housing, and a sealing member which provides a seal between the connector housing and the vacuum
flow path.

US Pat. No. 9,925,877

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:a compressor configured to compress and discharge refrigerant;
an indoor heat exchanger provided in a vehicle interior; and
an outdoor heat exchanger provided outside the vehicle interior,
wherein the vehicle interior is heated by releasing heat from the refrigerant discharged from the compressor in the indoor heat exchanger, and absorbing the heat into the refrigerant in the outdoor heat exchanger,
the vehicle air conditioning apparatus further comprising:
a frost formation determination part configured to determine whether or not a frost is formed on the outdoor heat exchanger;
a defrost part configured to perform a defrost operation to remove the frost formed on the outdoor heat exchanger when the frost formation determination part determines that the frost is formed on the outdoor heat exchanger;
a battery power detection part configured to detect a power of a battery that supplies power for driving a vehicle and for performing a heating operation;
a defrost restriction part configured to restrict the defrost part from performing the defrost operation when the power of the battery detected by the battery power detection part is a predetermined level or lower;
a charge determination part configured to determine whether or not the battery is being charged;
a cancellation part configured to cancel the restriction on the performing of the defrost operation by the defrost restriction part when the charge determination part determines that the battery is being charged;
a fan configured to allow air to flow through, the air being subjected to a heat exchange with the refrigerant flowing through the outdoor heat exchanger;
a temperature detection part configured to detect a temperature outside the vehicle interior; and
a fan control part configured to, in a case in which frost is formed on the outdoor heat exchanger, and while the defrost restriction part restricts the defrost operation from being performed, operate the fan without cancelling the restriction on the performing of the defrost operation by the defrost restriction part when the charge determination part determines that the battery is being charged and the temperature outside the vehicle interior detected by the temperature detection part is a predetermined level or higher.

US Pat. No. 9,784,486

MECHANISM FOR CONTROLLING REFRIGERANT IN A VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:
a compressor configured to compress and discharge a refrigerant;
a radiator provided in a vehicle interior and configured to release heat from the refrigerant;
a heat exchanger provided in the vehicle interior and configured to absorb the heat into the refrigerant;
an outdoor heat exchanger provided outside the vehicle interior and configured to release the heat from the refrigerant or
absorb the heat into the refrigerant;

an indoor expansion valve configured to decompress the refrigerant flowing into the heat exchanger; and
an outdoor expansion valve configured to decompress the refrigerant flowing into the outdoor heat exchanger,
the vehicle air conditioning apparatus performing a heating and dehumidifying operation to release the heat from the refrigerant
discharged from the compressor in the radiator; to decompress part of the refrigerant by the indoor expansion valve and absorb
the heat into the refrigerant in the heat exchanger; and to decompress a remaining refrigerant by the outdoor expansion valve
and absorb the heat into the remaining refrigerant in the outdoor heat exchanger,

the vehicle air conditioning apparatus further comprising:
an outdoor expansion valve controller configured to control an evaporating temperature of the refrigerant in the heat exchanger
by regulating an opening of the outdoor expansion valve during the heating and dehumidifying operation;

an evaporating temperature control valve provided in a refrigerant flow passage to an output side of the heat exchanger from
which the refrigerant is discharged, and configured to control the evaporating temperature of the refrigerant in the heat
exchanger by regulating an amount of the refrigerant flowing through the refrigerant flow passage;

a temperature detector configured to detect a temperature of the refrigerant in the heat exchanger; and
a control changer configured to switch control of the evaporating temperature of the refrigerant in the heat exchanger from
regulating an opening of the outdoor expansion valve to regulating an opening of the evaporating temperature control valve,
when a predetermined condition in which the opening of the outdoor expansion valve is a predetermined value or more and the
temperature detected by the temperature detector is a predetermined temperature or lower is satisfied.

US Pat. No. 9,662,961

HEATING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A heating apparatus which is assembled by inserting a columnar heating element into a hole provided in a case, and heats
a heating medium introduced into the case by the heating element,
wherein the heating element includes a cylindrical tube portion where a tapered portion is formed at least on one end portion,
a heating wire provided inside the tube portion, and a bottom plate that seals an end portion on the tapered portion side
of the tube portion, the end portion is inserted into a boss portion provided in the case, and is supported by an O-ring disposed
between an inner peripheral wall of the boss portion and an outer peripheral wall of the heating element,

a heating medium passage for passing the heating medium is formed along an outer peripheral surface of the heating element
on an inner side of the O-ring within the case, and

the bottom plate is arranged on an axially inner side of the tube portion with respect to the tapered portion.

US Pat. No. 10,112,458

VEHICLE AIR-CONDITIONING DEVICE

Sanden Holdings Corporati...

5. A vehicle air-conditioning device comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
a heat absorber disposed in the air flow passage to let the refrigerant absorb heat;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat; and
control means,
at least the control means being configured to execute a heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the outdoor heat exchanger,
the vehicle air-conditioning device comprising:
an injection circuit which distributes a part of the refrigerant flowing out from the radiator to return the refrigerant to the middle of compression by the compressor; and
a water circulation circuit in which water heated by heating means is circulated by circulating means,
wherein the injection circuit has pressure reducing means, and a water-refrigerant heat exchanger which performs heat exchange between the refrigerant decompressed by the pressure reducing means and the water flowing in the water circulation circuit,
wherein the control means compares a demand heating qualification Qtgt which is a demanded radiator heating qualification with a heating qualification Qhp generated by the radiator, and allows the refrigerant to flow through the injection circuit by the pressure reducing means when the heating qualification Qhp is lower than the demand heating qualification Qtgt,
wherein the control means controls an amount of the refrigerant to be returned from the injection circuit to the compressor by the pressure reducing means, on the basis of one of a difference between the demand heating qualification Qtgt which is the demanded radiator heating qualification and the heating qualification Qhp generated by the radiator, a difference between the target radiator temperature and a temperature of the radiator, a difference between a target radiator pressure and a pressure of the radiator, and a target outlet temperature to the vehicle interior, or any combination thereof.

US Pat. No. 10,059,168

VEHICLE AIR CONDITIONER DEVICE

Sanden Holdings Corporati...

1. A vehicle air conditioner device comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied to a vehicle interior flows;
a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage to the vehicle interior;
a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage to the vehicle interior;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat;
a plurality of solenoid valves to change a flow of the refrigerant;
auxiliary heating means for heating the air to be supplied from the air flow passage to the vehicle interior; and
control means,
the vehicle air conditioner device controlling the solenoid valves by the control means, thereby changing and executing at least a heating mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the outdoor heat exchanger,
a dehumidifying mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the heat absorber, and
a cooling mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the outdoor heat exchanger, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the heat absorber,
wherein the respective solenoid valves are constituted so that the flow of the refrigerant changes to the cooling mode when all the solenoid valves are non-energized,
the control means executes a cooling mode during failure in which the control means adjusts all the solenoid valves to be non-energized and operates the compressor, in a case where a disconnection failure occurs in one of the solenoid valves.

US Pat. No. 9,593,886

HEAT EXCHANGER AND HEAT PUMP DEVICE USING THE SAME

SANDEN HOLDINGS CORPORATI...

1. A heat exchanger comprising:
a plurality of heat transfer tubes spaced from one another in a radial direction thereof and arranged vertically and longitudinally;
a plurality of heat transfer fins spaced from one another and disposed in an axial direction of the heat transfer tubes; and
a carbon dioxide refrigerant provided for circulation through the heat transfer tubes, wherein
each of the heat transfer tubes has
an inner diameter of 4 mm or more,
an outer diameter D in a range of 5 mm D 6 mm, and
a thickness t in a range of 0.05×D?t?0.09×D,
the heat transfer tubes are disposed at a vertical pitch L1 in a range of 3×D?L1?4.2×D,
the heat transfer tubes are disposed at a longitudinal pitch L2 in a range of 2.6×D?L2?3.64×D,
a number of longitudinal rows N of the heat transfer tubes is in a range of 2?N?8,
the heat transfer fins are disposed at a pitch Fp in the axial direction of the heat transfer tubes, and
a value of Fp/N is in a range of 0.5 mm?Fp/N?0.9 mm, the Fp/N value being given by dividing Fp by the number of longitudinal
rows N of the heat transfer tubes.

US Pat. No. 9,988,945

APPARATUS FOR UTILIZING HEAT WASTED FROM ENGINE

SANDEN HOLDINGS CORPORATI...

1. An apparatus for utilizing heat wasted from an engine, comprising:a Rankine cycle including:
a heat exchanger that recovers heat wasted from the engine in a refrigerant;
an expansion device that generates power using the refrigerant at an outlet of the heat exchanger;
a condenser that condenses the refrigerant exiting the expansion device; and
a refrigerant pump that is driven by power regenerated by the expansion device so as to supply the refrigerant exiting the condenser to the heat exchanger;
a transmission mechanism configured to couple a shaft to a rotary shaft of the engine via an electromagnetic clutch, the refrigerant pump and the expansion device being disposed on the shaft as an identical shaft, the electromagnetic clutch being configured to be engaged and disengaged;
first pressure detecting means for detecting a pressure in a refrigerant passage, the refrigerant passage extending from the condenser to the refrigerant pump;
first temperature detecting means for detecting a temperature in the refrigerant passage, the refrigerant passage extending from the condenser to the refrigerant pump;
second pressure detecting means for detecting a pressure in a refrigerant passage, the refrigerant passage extending from the heat exchanger to the expansion device;
second temperature detecting means for detecting a temperature in the refrigerant passage, the refrigerant passage extending from the heat exchanger to the expansion device;
control means that uses detection values detected by these four detecting means when operating the Rankine cycle; and
sticking diagnosis means for diagnosing whether the electromagnetic clutch is stuck in an engaged condition or not on the basis of the pressure and the temperature detected by either a couple constituted by the first pressure detecting means and the first temperature detecting means or a couple constituted by the second pressure detecting means and the second temperature detecting means.

US Pat. No. 9,797,641

VEHICULAR AIR-CONDITIONING DEVICE

Sanden Holdings Corporati...

1. A vehicular air-conditioning device comprising:
a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage into the vehicle
interior;

a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage into the vehicle
interior;

an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat; and
control means,
the control means being configured to execute at least a heating mode in which the refrigerant discharged from the compressor
radiates heat in the radiator and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in
the outdoor heat exchanger,

the vehicular air-conditioning device comprising:
auxiliary heating means for heating the air to be supplied from the air flow passage into the vehicle interior,
wherein the control means calculates a requested refrigerant evaporation temperature in non-frosting TXObaseQtgt which is
a refrigerant evaporation temperature of the outdoor heat exchanger when a required heating capability Qtgt as a heating capability
required for the radiator is realized in non-frosting of the outdoor heat exchanger, and the control means controls the heating
by the radiator and the heating by the auxiliary heating means on the basis of the requested refrigerant evaporation temperature
in non-frosting TXObaseQtgt and a frost point Tfrost to achieve the required heating capability Qtgt without causing frost
formation to the outdoor heat exchanger.

US Pat. No. 10,252,600

AIR-CONDITIONING APPARATUS FOR VEHICLE

Sanden Holdings Corporati...

1. An air-conditioning apparatus for vehicle comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied to a vehicle interior flows;
a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage to the vehicle interior;
a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage to the vehicle interior;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat; and
control means,
the air-conditioning apparatus for vehicle having at least respective operation modes of:
a heating mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the outdoor heat exchanger,
a dehumidifying and heating mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat only in the heat absorber or in the heat absorber and the outdoor heat exchanger,
a dehumidifying and cooling mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator and the outdoor heat exchanger, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the heat absorber, and
a cooling mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the outdoor heat exchanger, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the heat absorber,
the air-conditioning apparatus for vehicle selecting and executing these operation modes,
wherein the control means selects the operation mode in which a radiator target temperature is achievable by the heat radiation in the radiator.

US Pat. No. 10,105,003

BEVERAGE DISPENSER

SANDEN HOLDINGS CORPORATI...

1. A beverage dispenser, in which a filter is arranged between a lower end of a cylindrical brewing chamber and an upper end of a fluid receptacle, and a beverage that has been brewed by supplying a raw material and water to the brewing chamber is forced to drip into the fluid receptacle through the filter, and is thereafter delivered to a cup along a beverage path, comprising:a pressure difference generator configured to generate, based on a received drive signal, a pressure difference between a pressure in the brewing chamber and a pressure in the fluid receptacle to force the beverage to drip into the fluid receptacle, and to deliver the beverage to the cup;
a pressure sensor configured to measure, and output a signal representative of, the pressure in the fluid receptacle or the pressure in the brewing chamber; and
a controller having: a receiver configured to receive signals from components of the beverage dispenser, including signals from the pressure sensor, a transmitter configured to transmit operation signals to the components of the beverage dispenser, and a driver configured transmit the drive signal to the pressure difference generator to drive the pressure difference generator, the controller being configured to sequentially determine, for each interval of a preset time length, an interval average of a plurality of values for pressure measured by the pressure sensor, the values being based on a plurality of the signals output from the pressure sensor, and halt, based on results of comparison of the interval averages, a drip-brewing and delivering operation for the beverage performed by the pressure difference generator, by controlling the drive signal.

US Pat. No. 9,909,794

VEHICULAR AIR-CONDITIONING DEVICE

Sanden Holdings Corporati...

1. A vehicular air-conditioning device comprising:
a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage into the vehicle
interior;

a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage into the vehicle
interior;

an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat; and
control means,
the control means being configured to execute at least a heating mode in which the refrigerant discharged from the compressor
radiates heat in the radiator and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in
the outdoor heat exchanger,

the vehicular air-conditioning device comprising:
auxiliary heating means for heating the air to be supplied from the air flow passage into the vehicle interior,
wherein the control means calculates a maximum heating capability predicted value without frosting QmaxNfst which is a target
value of a maximum heating capability to be generated by the radiator in a range in which the outdoor heat exchanger is not
frosted, and

the control means controls the heating by the radiator and the heating by the auxiliary heating means on the basis of the
maximum heating capability predicted value without frosting QmaxNfst and a required heating capability Qtgt which is the heating
capability required for the radiator to achieve the required heating capability Qtgt without causing frost formation to the
outdoor heat exchanger.

US Pat. No. 10,131,207

VEHICLE AIR-CONDITIONING DEVICE

Sanden Holdings Corporati...

1. A vehicle air-conditioning device comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
a heat absorber disposed in the air flow passage to let the refrigerant absorb heat;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat; and
control means,
at least the control means being configured to execute a heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the outdoor heat exchanger,
the vehicle air-conditioning device comprising an injection circuit which distributes a part of the refrigerant flowing out from the radiator to return the refrigerant to the middle of compression by the compressor,
wherein the injection circuit has pressure reducing means, and a discharge side heat exchanger which performs heat exchange between the refrigerant decompressed by the pressure reducing means and the refrigerant discharged from the compressor before flowing into the radiator,
wherein the injection circuit further has a radiator outlet side heat exchanger which performs heat exchange between the refrigerant decompressed by the pressure reducing means or another pressure reducing means that is separately disposed and the refrigerant flowing out from the radiator.

US Pat. No. 10,138,842

APPARATUS FOR UTILIZING HEAT WASTED FROM ENGINE

SANDEN HOLDINGS CORPORATI...

1. An apparatus for utilizing heat wasted from an engine, comprising:a Rankine cycle including:
a heat exchanger that recovers waste heat from the engine in a refrigerant;
an expansion device that generates power using the refrigerant at an outlet of the heat exchanger;
a condenser that condenses the refrigerant exiting the expansion device; and
a refrigerant pump that supplies the refrigerant exiting the condenser to the heat exchanger;
a transmission mechanism configured to couple an output shaft of the expansion device to a rotary shaft of the engine via an electromagnetic clutch, the electromagnetic clutch being configured to be engaged and disengaged;
a passage through which the refrigerant exiting the heat exchanger flows so as to bypass the expansion device;
a bypass valve interposed in the passage, and
a controller
wherein, the controller is programmed to:
switch the electromagnetic clutch from an engaged state to a disengaged state after switching the bypass valve from a closed state to an open state to stop the expansion device and
perform expansion device front-rear differential pressure limiting processing in which a front-rear differential pressure of the expansion device is limited while maintaining the electromagnetic clutch in the engaged state, in a case where the bypass valve becomes stuck in the closed state.

US Pat. No. 10,180,269

REFRIGERATION DEVICE

Sanden Holdings Corporati...

1. A refrigeration device which comprises a high stage side refrigerant circuit, a low stage side refrigerant circuit, and a cascade heat exchanger to evaporate a refrigerant of the high stage side refrigerant circuit, thereby cooling a high pressure side refrigerant of the low stage side refrigerant circuit and in which carbon dioxide is charged as the refrigerant in each of the refrigerant circuits,wherein the low stage side refrigerant circuit has a low stage side compressor, a low stage side expansion valve and a low stage side evaporator,
wherein there is disposed a pressure adjusting expansion valve coupled to an outlet pipe of the cascade heat exchanger and configured to adjust a high pressure side pressure of the low stage side refrigerant circuit.

US Pat. No. 10,183,551

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:a compressor configured to compress and discharge a refrigerant;
a radiator provided in a vehicle interior and configured to release heat from the refrigerant;
a heat exchanger provided in the vehicle interior and configured to absorb the heat into the refrigerant; and
an outdoor heat exchanger provided outside the vehicle interior and configured to release the heat from or absorb the heat into the refrigerant,
the vehicle air conditioning apparatus performing:
a heating and dehumidifying operation to release the heat from the refrigerant discharged from the compressor in the radiator, to decompress part of the refrigerant by an expansion valve, and to absorb the heat into the refrigerant in the heat exchanger while decompressing a remaining refrigerant by the expansion valve and then absorbing the heat into the refrigerant in the outdoor heat exchanger,
the vehicle air conditioning apparatus further comprising:
an evaporating temperature regulating valve provided in a refrigerant flow passage to an output side of the heat exchanger from which the refrigerant is discharged and configured to regulate an evaporating temperature of the refrigerant in the heat exchanger by regulating an amount of the refrigerant flowing through the refrigerant flow passage; and
a valve opening controller configured to control an opening of the evaporating temperature regulating valve during the heating and dehumidifying operation,
wherein the opening of the evaporating temperature regulating valve can be optionally set by the valve opening controller.

US Pat. No. 10,301,940

SCROLL EXPANDER

SANDEN HOLDINGS CORPORATI...

7. A scroll expander including a fixed scroll and a movable scroll which define an expansion chamber therebetween, the movable scroll being configured to be driven by expansion of working fluid in the expansion chamber, comprising:a suction port which allows a high-pressure flow of the working fluid to enter, and which guides the entering flow of the working fluid into the expansion chamber;
a discharge port which allows the working fluid expanded to a lower pressure in the expansion chamber to flow out;
a bypass passage through which the suction port communicates with the discharge port while bypassing the expansion chamber; and
a bypass valve configured to open and close the bypass passage,
wherein:
the suction port, the bypass passage and a bypass valve attaching portion for attaching the bypass valve are formed in a base plate of the fixed scroll,
both of the suction port and the bypass passage extend along a scroll non-forming surface, which is opposite to a scroll forming surface in which a scroll wall is formed, of the base plate of the fixed scroll, and then curves to pass through the base plate of the fixed scroll till reaching the scroll forming surface,
the bypass valve attaching portion is formed as a hole for inserting the bypass valve so as to extend along the scroll non-forming surface of the base plate of the fixed scroll in communication with the bypass passage, and
at least either of at least one rib and at least one thick portion is formed in an area including none of the suction port, the bypass passage and the bypass valve attaching portion on the scroll non-forming surface of the base plate of the fixed scroll.

US Pat. No. 10,189,332

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

10. A vehicle air conditioning apparatus comprising:a compressor configured to compress and discharge refrigerant;
a heat medium heating radiator configured to release heat from the refrigerant and heat the heat medium;
an air cooling heat exchanger configured to absorb the heat into the refrigerant and to cool air blowing to a vehicle interior;
an outdoor heat exchanger provided outside the vehicle interior and configured to release the heat from or absorb the heat into the refrigerant by performing a heat exchange between the refrigerant and outdoor air;
a heat medium circuit configured to allow the heat medium heated by the heat medium heating radiator to flow through;
an air heating radiator configured to release heat from the heat medium flowing through the heat medium circuit and to heat the air blowing to the vehicle interior; and
a heat medium heater configured to be able to heat the heat medium flowing through the heat medium circuit by electric power, wherein:
a heating operation is performed by releasing the heat from the refrigerant discharged from the compressor in the heat medium heating radiator and absorbing the heat into the refrigerant after the heat release in the outdoor heat exchanger;
a heating and dehumidifying operation is performed by releasing the heat from the refrigerant discharged from the compressor in the heat medium heating radiator and absorbing the heat into the refrigerant after the heat release in the air cooling heat exchanger and the outdoor heat exchanger; and
the heat medium heater can heat the heat medium flowing through the heat medium circuit,
the vehicle air conditioning apparatus further comprising:
an outdoor air temperature sensor configured to detect a temperature outside the vehicle interior;
a high-pressure side pressure sensor configured to detect a pressure of the compressor in an output side from which the refrigerant is discharged; and
a controller, the controller being configured to:
estimate a temperature of the heat medium that is heated by the heat medium heating radiator and flows through the heat medium circuit;
calculate an insufficient quantity of heat during one of the heating operation and the heating and dehumidifying operation, based on the estimated temperature of the heat medium that is heated by the heat medium heating radiator;
control the heat medium heater, based on the calculated insufficient quantity of heat;
calculate an estimated value of a pressure of the compressor in an input side into which the refrigerant is sucked, based on the temperature detected by the outdoor air temperature sensor, the pressure detected by the high-pressure side pressure sensor and a number of rotations of the compressor;
calculate a number of rotations of the compressor that allows the estimated value of the pressure of the compressor to be a predetermined pressure; and
control operation of the compressor such that the compressor is operated at the calculated number of rotations.

US Pat. No. 10,183,554

VEHICULAR AIR CONDITIONING DEVICE

Sanden Holdings Corporati...

1. A vehicular air conditioning device comprising:two compressors including an engine-driven compressor and a motor-driven compressor; and
a control device for controlling operations of the two compressors,
the engine-driven compressor being used when an engine is running and the motor-driven compressor being used when the engine stops,
wherein the control device is configured to let the motor-driven compressor operate for a predetermined time at the startup of the engine while keeping the engine-driven compressor at rest and subsequently let the engine-driven compressor operate,
wherein the control device is further configured to, when the motor-driven compressor is operated at the startup of the engine, let the motor-driven compressor operate at a target rotational speed of the motor-driven compressor determined by calculation based on an air conditioning load, and
wherein the control device is further configured to, when the target rotational speed of the motor-driven compressor is less than a predetermined rotational speed, let the engine-driven compressor operate without letting the motor-driven compressor operate at the startup of the engine.

US Pat. No. 10,160,291

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:a refrigerant circuit including an electric compressor, an indoor heat exchanger and an outdoor heat exchanger, the indoor heat exchanger being configured to release heat by operating the compressor; and
an electric heater configured to release heat,
wherein a vehicle interior can be heated by at least one of the heat released from the indoor heat exchanger and the heat released from the electric heater,
the vehicle air conditioning apparatus further comprising a controller, the controller being configured to:
calculate a minimum power sharing ratio of operation between the compressor and the electric heater, the minimum power sharing ratio allowing power consumption to be minimized when a required quantity of heating for a heating operation is acquired; and
control the compressor and the electric heater based on the calculated minimum power sharing ratio, and
wherein the controller calculates the minimum power sharing ratio of the operation between the compressor and the electric heater based on a target air-blowing temperature of air to be blown into the vehicle interior, the required quantity of heating of the air blowing into the vehicle interior, and an outdoor air temperature.

US Pat. No. 10,131,208

VEHICLE AIR-CONDITIONING DEVICE

Sanden Holdings Corporati...

7. A vehicle air-conditioning device, comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
a heat absorber disposed in the air flow passage to let the refrigerant absorb heat;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat; and
control means,
at least the control means being configured to execute a heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the outdoor heat exchanger,
the vehicle air-conditioning device comprising:
an injection circuit which distributes a part of the refrigerant flowing out from the radiator to return the refrigerant to the middle of compression by the compressor; and
a water circulation circuit in which water heated by heating means is circulated by circulating means,
wherein the injection circuit has pressure reducing means, and a water-refrigerant heat exchanger which performs heat exchange between the refrigerant decompressed by the pressure reducing means and the water flowing in the water circulation circuit,
wherein the water circulation circuit has a water-air heat exchanger disposed on an air inflow side of the outdoor heat exchanger or in the air flow passage,
wherein the control means compares a demand heating qualification Qtgt which is a demanded radiator heating qualification with a heating qualification Qhp generated by the radiator, and allows the refrigerant to flow through the injection circuit by the pressure reducing means when the heating qualification Qhp is lower than the demand heating qualification Qtgt,
wherein the control means controls an amount of the refrigerant to be returned from the injection circuit to the compressor by the pressure reducing means, on the basis of one of a difference between the demand heating qualification Qtgt which is the demanded radiator heating qualification and the heating qualification Qhp generated by the radiator, a difference between the target radiator temperature and a temperature of the radiator, a difference between a target radiator pressure and a pressure of the radiator, and a target outlet temperature to the vehicle interior, or any combination thereof.

US Pat. No. 10,239,382

VEHICLE AIR CONDITIONER

Sanden Holdings Corporati...

1. A vehicle air conditioner comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied to a vehicle interior flows;
a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage to the vehicle interior;
a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage to the vehicle interior;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate heat or absorb heat; and
control means,
the vehicle air conditioner executing at least a heating mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the outdoor heat exchanger,
the vehicle air conditioner comprising:
auxiliary heating means for heating the air to be supplied from the air flow passage to the vehicle interior,
wherein the control means has frosting estimation means for estimating frosting to the outdoor heat exchanger, and when the heating mode is executed in a state where a power is supplied from an external power source to the compressor or a battery which supplies the power to drive the compressor, the control means executes the heating mode by the auxiliary heating means, in a case where the frosting to the outdoor heat exchanger is predicted based on the estimation of the frosting estimation means,
wherein the frosting estimation means calculates a maximum heating capability predicted value without frosting TGQhpNfst which is a target value of the maximum heating capability generable by the radiator in a range in which the outdoor heat exchanger is not frosted, and
the frosting estimation means predicts that the outdoor heat exchanger is frosted in a case where the maximum heating capability predicted value without frosting TGQhpNfst is smaller than a required heating capability Qtgt as the heating capability of the radiator which is required or a value of Qtgt-?1, wherein the ?1 is a value to impart a margin to the frosting, and
wherein the frosting estimation means calculates the maximum heating capability predicted value without frosting TGQhpNfst on the basis of an outdoor air temperature, or time, solar radiation, a rainfall, a location and weather conditions in addition to the outdoor air temperature.

US Pat. No. 10,214,072

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:a compressor configured to compress and discharge a refrigerant;
a radiator provided in an air flow passage that allows air to be supplied to a vehicle interior to flow through and configured to release heat from the refrigerant;
an indoor heat exchanger provided in the air flow passage in an upstream of air flow from the radiator and configured to absorb the heat into the refrigerant;
an outdoor heat exchanger provided outside the vehicle and configured to release the heat from the refrigerant; and
an air mix damper configured to be able to change a percentage of the air flowing through the air flow passage that is subjected to a heat exchange with the refrigerant flowing through the radiator, wherein:
when a degree of an opening defined by movement of the air mix damper is increased, the percentage of the air subjected to the heat exchange with the refrigerant is increased; and
the refrigerant discharged from the compressor releases the heat in the radiator and the outdoor heat exchanger while flowing first through the radiator, and next through the outdoor heat exchanger, and is decompressed by an expansion valve and absorbs the heat in the indoor heat exchanger, so that the air having been cooled in the indoor heat exchanger is heated in the radiator, and then supplied to the vehicle interior,
the vehicle air conditioning apparatus further comprising:
a refrigerant flow regulating valve provided in a refrigerant flow passage between the radiator and the outdoor heat exchanger and configured to regulate an amount of the refrigerant flowing through the refrigerant flow passage;
a target air-blowing temperature calculation part configured to calculate a target air-blowing temperature that is a temperature of the air to be supplied to the vehicle interior required to ensure that the temperature of the vehicle interior is a preset temperature;
a heated air temperature detection part configured to detect a temperature of the air after being heated in the radiator;
a cooled air temperature detection part configured to detect a temperature of the air after being cooled in the indoor heat exchanger;
an opening calculation part configured to calculate the opening of the air mix damper, based on the temperature calculated by the target air-blowing temperature calculation part, the temperature detected by the heated air temperature detection part and the temperature detected by the cooled air temperature detection part;
a valve opening control part configured to control a valve opening of the refrigerant flow regulating valve such that the valve opening of the refrigerant flow regulating valve is smaller when the valve opening calculated by the opening calculation part is equal to or more than a predetermined value than when the valve opening calculated by the opening calculation part is smaller than the predetermined value; and
an outlet switching part configured to switch a mode among a vent mode to blow the air flowing through the air flow passage toward a head of a passenger in the vehicle interior, a foot mode to blow the air toward feet of the passenger in the vehicle interior, and a bi-level mode to blow the air toward the head and the feet of the passenger in the vehicle interior,
wherein the predetermined value used by the opening calculation part varies depending on the mode set by the outlet switching part, and
wherein, the opening calculation part is configured to use 100% as the predetermined value, in response to the mode set by the outlet switching part being the vent mode or the mode set by the outlet switching part being the foot mode.

US Pat. No. 10,293,661

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus comprising:a compressor configured to compress and discharge refrigerant;
a heat medium heating radiator configured to release heat from the refrigerant and heat the heat medium;
an air cooling heat exchanger configured to absorb the heat into the refrigerant and to cool air blowing to a vehicle interior;
an outdoor heat exchanger provided outside the vehicle interior and configured to release the heat from or absorb the heat into the refrigerant by performing a heat exchange between the refrigerant and outdoor air;
a heat medium circuit configured to allow the heat medium heated by the heat medium heating radiator to flow through;
an air heating radiator configured to release heat from the heat medium flowing through the heat medium circuit and to heat the air blowing to the vehicle interior; and
a heat medium heater configured to be able to heat the heat medium flowing through the heat medium circuit by electric power, wherein:
a heating operation is performed by releasing the heat from the refrigerant discharged from the compressor in the heat medium heating radiator and absorbing the heat into the refrigerant after the heat release in the outdoor heat exchanger;
a heating and dehumidifying operation is performed by releasing the heat from the refrigerant discharged from the compressor in the heat medium heating radiator and absorbing the heat into the refrigerant after the heat release in the air cooling heat exchanger and the outdoor heat exchanger; and
the heat medium heater can heat the heat medium flowing through the heat medium circuit,
the vehicle air conditioning apparatus further comprising:
a heat medium temperature estimating part configured to estimate a temperature of the heat medium that is heated by the heat medium heating radiator and flows through the heat medium circuit;
an insufficient-quantity-of-heat calculation part configured to calculate an insufficient quantity of heat during one of the heating operation and the heating and dehumidifying operation, based on a result of an estimation by the heat medium temperature estimating part;
a heat medium heater control part configured to control the heat medium heater, based on the insufficient quantity of heat calculated by the insufficient-quantity-of-heat calculation part,
a required dehumidification calculation part configured to calculate a required amount of dehumidification based on a temperature and a humidity of the vehicle interior;
a dehumidifying capability calculation part configured to calculate a possible amount of dehumidification during the heating and dehumidifying operation;
an operation switching part configured to switch the heating and dehumidifying operation to a cooling and dehumidifying operation to release the heat from the refrigerant discharged from the compressor in the heat medium heating radiator and the outdoor heat exchanger and to absorb the heat into the refrigerant after the heat release in the air cooling heat exchanger when the dehumidifying capability calculated by the dehumidifying capability calculation part is lower than the required amount of dehumidification calculated by the required dehumidification calculation part; and
a compensation part configured to compensate for an insufficient quantity of heat released from the air heating radiator by switching from the heating and dehumidifying operation to the cooling and dehumidifying operation by the operation switching part.

US Pat. No. 10,298,089

ELECTRIC COMPRESSOR

SANDEN HOLDINGS CORPORATI...

1. An electric compressor which is driven by an electric motor and compresses refrigerant, and in which the electric motor including a rotor and a stator disposed radially outside the rotor is housed in a cylindrical casing, the electric compressor comprisinga plurality of protrusions formed protruding radially inside from an inner periphery of the casing so as to be spaced apart from each other in a circumferential direction of the inner periphery, wherein
each of the protrusions is provided with a groove which extends in an axial direction in a circumferentially central portion of the protrusion,
the protruding end surfaces of the protrusions are fixed to an outer periphery of the stator by shrink fitting at contact interfaces therebetween,
each of the grooves is opened at one end but closed at the other end in the axial direction in the corresponding one of the protrusions, and
each of the contact interfaces is formed in a U shape.

US Pat. No. 10,279,654

AIR CONDITIONING DEVICE FOR VEHICLE

Sanden Holdings Corporati...

1. An air conditioning device for vehicle comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied to a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
a heat absorber disposed in the air flow passage to let the refrigerant absorb heat;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat; and
control means,
the control means being configured to let the refrigerant discharged from the compressor radiate heat in the radiator, decompress the refrigerant by which heat has been radiated and then let the refrigerant absorb heat in the outdoor heat exchanger, thereby heating the vehicle interior,
the air conditioning device for vehicle comprising:
an injection circuit which distributes a part of the refrigerant flowing out from the radiator to return the part of the refrigerant to the compressor,
wherein the control means operates the injection circuit to return the refrigerant to the compressor, when the high-temperature refrigerant is passed through the outdoor heat exchanger to perform defrosting,
wherein in a case where there is a heating required for the vehicle interior, the control means executes a hot gas defrosting mode in which a part of the refrigerant discharged from the compressor is distributed to flow into the outdoor heat exchanger and radiate heat therein without flowing through the radiator and the refrigerant by which heat has been radiated returns to the compressor, and the control means operates the injection circuit.

US Pat. No. 10,315,485

VEHICLE AIR CONDITIONER DEVICE

Sanden Holdings Corporati...

1. A vehicle air conditioner device comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied to a vehicle interior flows;
a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage to the vehicle interior;
a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage to the vehicle interior;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat;
an air mix damper to adjust a ratio at which the air in the air flow passage passed through the heat absorber is to be passed through the radiator; and
control means,
the vehicle air conditioner device changing and executing at least a heating mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the outdoor heat exchanger, and
a cooling mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the outdoor heat exchanger, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the heat absorber,
wherein the air mix dampers are disposed to a driver's seat and an assistant driver's seat, respectively,
the control means is settable target outlet temperatures at the driver's seat and the assistant driver's seat, respectively, and adjusts a radiator target temperature of the radiator into a higher target outlet temperature in the target outlet temperatures at the driver's seat and the assistant driver's seat, and
in the cooling mode, the control means controls the air mix dampers to adjust the ratio at which the air is to be passed through the radiator on the basis of one, any combination, or all of a target outlet temperature, a temperature of the radiator and a temperature of the heat absorber, and
in the heating mode, the control means controls the air mix damper having the higher target outlet temperature in the air mix dampers at the driver's seat and the assistant driver's seat to pass all the air in the air flow passage through the radiator, and the control means controls the air mix damper having the lower target outlet temperature to adjust the ratio at which the air is to be passed through the radiator and to regulate the ratio into a predetermined lower limit value or more, on the basis of one, any combination, or all of the target outlet temperature, the temperature of the radiator and the temperature of the heat absorber.

US Pat. No. 10,315,488

REFRIGERATION DEVICE WITH EXPANSION VALVE COIL TEMPERATURE CORRECTION

Sanden Holdings Corporati...

1. A refrigeration device which has a refrigerant circuit comprising an electronic expansion valve, andwhich comprises a controller for controlling energization to a coil of the electronic expansion valve,
wherein the controller executes operation limit control to limit an operation of the electronic expansion valve so that a temperature of the coil of the electronic expansion valve is not in excess of a predetermined value,
wherein the electronic expansion valve requires predetermined energization before and after the operation to hold its position, and
wherein the controller is configured to lengthen a control period of the electronic expansion valve and suppress an operation amount of the electronic expansion valve within a predetermined limit value to limit a duty factor range in which the energization before and after the operation to hold its position and an energization for the electronic expansion valve operation can be performed, in the operation limit control, so that the temperature of the coil of the electric expansion valve is not in excess of the predetermined value.

US Pat. No. 10,369,864

VEHICLE AIR CONDITIONER DEVICE

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioner device comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied to a vehicle interior flows;
a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage to the vehicle interior;
a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage to the vehicle interior;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat;
a plurality of solenoid valves to change a flow of the refrigerant of a refrigerant circuit;
auxiliary heating means for heating the air to be supplied from the air flow passage to the vehicle interior; and
control means for controlling the compressor, the solenoid valves and the auxiliary heating means,
the vehicle air conditioner device controlling the solenoid valves by the control means to change the flow of the refrigerant, thereby executing one of:
a heating mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the outdoor heat exchanger;
a dehumidifying mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the heat absorber; and
a cooling mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the outdoor heat exchanger, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the heat absorber,
wherein the dehumidifying mode includes:
a dehumidifying and heating mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and lets the refrigerant absorb heat in the heat absorber and the outdoor heat exchanger; and
a dehumidifying and cooling mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator and the outdoor heat exchanger, decompresses the refrigerant by which heat has been radiated, and lets the refrigerant absorb heat in the heat absorber, and
wherein the control means has a predetermined air conditioning mode during failure, and failure detecting means for detecting a failed solenoid valve of the plurality of solenoid valves, and
the control means changes the flow of the refrigerant to the other operation mode that enables dehumidifying of the vehicle interior to obtain the air conditioning mode during failure, to continue the air conditioning of the vehicle interior, in a case of detecting that the failed solenoid valve fails in the dehumidifying and heating mode or the dehumidifying and cooling mode.

US Pat. No. 10,391,836

VEHICLE AIR-CONDITIONING DEVICE

Sanden Holdings Corporati...

1. A vehicle air-conditioning device comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied to a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
a heat absorber disposed in the air flow passage to let the refrigerant absorb heat;
an indoor blower which blows air through the air flow passage; and
control means comprising a controller for controlling operations of the compressor and the indoor blower,
the vehicle air-conditioning device heating the air to be supplied to the vehicle interior by heat radiated from the radiator to heat the vehicle interior,
the vehicle air-conditioning device comprising:
heat generating means disposed in the air flow passage to heat the air to be supplied to the vehicle interior,
wherein the control means controls timing to start the compressor, the indoor blower and the heat generating means on a basis of an outdoor air temperature,
wherein in a case of a first low outdoor air temperature environment in which the outdoor air temperature is low, the control means starts the compressor prior to the indoor blower, and
the control means starts the heat generating means simultaneously with the indoor blower, immediately after the start of the indoor blower, or after the start of the indoor blower.

US Pat. No. 10,378,391

WASTE HEAT RECOVERY DEVICE

SANDEN HOLDINGS CORPORATI...

1. A waste heat recovery device comprising:a Rankine cycle including a working fluid circuit, the working fluid circuit including:
a heater configured to heat and evaporate working fluid,
an expander configured to expand the working fluid having passed through the heater to generate power,
a condenser configured to condense the working fluid having passed through the expander, and
a working fluid pump configured to feed, to the heater, the working fluid having passed through the condenser,
wherein the heater, the expander, the condenser and the working fluid pump are sequentially arranged;
a first coolant water circuit configured to circulate coolant water by way of an internal combustion engine and a radiator;
a second coolant water circuit configured to circulate the coolant water by way of the internal combustion engine and a first branched path branched between the internal combustion engine and the radiator; and
a third coolant water circuit configured to circulate the coolant water by way of the radiator and a second branched path branched between the first branched path and the radiator, wherein
a heat source of the heater is waste heat of the internal combustion engine,
the condenser is a heat exchanger configured to exchange heat between the working fluid and the coolant water of the third coolant water circuit, and
a check valve configured to prevent a backflow of the coolant water toward the radiator is provided between the first branched path and the second branched path on a downstream side of the radiator in the first coolant water circuit.

US Pat. No. 10,427,495

VEHICLE AIR CONDITIONING DEVICE

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning device comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied to a vehicle interior flows;
a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage to the vehicle interior;
a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage to the vehicle interior;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant absorb heat; and
control means,
the vehicle air conditioning device executing at least a heating mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated, and then lets the refrigerant absorb heat in the outdoor heat exchanger,
wherein on the basis of a difference ?TXO=(TXObase?TXO) between a refrigerant evaporation temperature TXObase of the outdoor heat exchanger in non-frosting and a refrigerant evaporation temperature TXO of the outdoor heat exchanger, the control means corrects an operation mode in accordance with increase of the difference ?TXO.

US Pat. No. 10,421,337

VEHICLE AIR CONDITIONER

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioner comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied into a vehicle interior flows;
a radiator disposed in the air flow passage to let the refrigerant radiate heat;
a heat absorber disposed in the air flow passage to let the refrigerant absorb heat;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant radiate or absorb heat;
an expansion valve which decompresses the refrigerant flowing into the outdoor heat exchanger;
and control means,
wherein the vehicle air conditioner includes an internal cycle mode in which inflow of the refrigerant into the outdoor heat exchanger and outflow of the refrigerant from the outdoor heat exchanger are inhibited, the refrigerant discharged from the compressor radiates heat in the radiator, and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the heat absorber;
wherein, in the internal cycle mode, the control means is configured to judge when an amount of the refrigerant to be circulated is excessively large and in response execute a refrigerant sealing mode to seal the refrigerant in the outdoor heat exchanger in a case where a refrigerant subcool degree of the radiator enlarges to be a predetermined threshold or more, and the control means is configured to judge when the amount of the refrigerant to be circulated is insufficient and in response execute a refrigerant discharge mode to discharge the refrigerant from the outdoor heat exchanger in a case where an operating status of the compressor is stable and a discharged refrigerant superheat degree of the compressor enlarges to become another threshold or more;
the control means being configured to allow for selective execution among the internal cycle mode and one of:
a heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator, and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the outdoor heat exchanger;
a dehumidifying and heating mode in which the refrigerant discharged from the compressor radiates heat in the radiator, and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the heat absorber and the outdoor heat exchanger;
a dehumidifying and cooling mode in which the refrigerant discharged from the compressor radiates heat in the radiator and the outdoor heat exchanger, and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the heat absorber; and
a cooling mode in which the refrigerant discharged from the compressor radiates heat in the outdoor heat exchanger, and the refrigerant by which heat has been radiated is decompressed and then absorbs heat in the heat absorber.

US Pat. No. 10,414,238

VEHICLE AIR CONDITIONING APPARATUS

SANDEN HOLDINGS CORPORATI...

1. A vehicle air conditioning apparatus used in a vehicle, the vehicle having a front and a back, and a right and a left extending in a width direction perpendicular to a front-to-back direction the vehicle including a separating plate provided on a front of a vehicle interior provided above an engine as a power source for driving the vehicle, the separating plate separating the vehicle interior from an outside of the vehicle interior and having an air conditioning opening, the vehicle air conditioning apparatus comprising:an air conditioning case provided inside of the vehicle interior with respect to the air conditioning opening and configured to accommodate an evaporator for cooling air and a heater for heating the air, the evaporator and the heater being arranged in the air conditioning case in the front-to-back direction; and
a fan unit provided inside of the vehicle interior with respect to the air conditioning opening and configured to supply the air into the air conditioning case, wherein:
the air conditioning case includes a case body having a case opening that is open to the air conditioning opening, and a case cover that can open and close the case opening;
the case cover can be attached to and detached from the case body via the air conditioning opening outside of the vehicle interior;
the evaporator is disposed in the case body such that its long side direction is in the width direction of the vehicle and its short side direction is in a vertical direction, and a front surface of the evaporator is exposed to the outside of the vehicle interior via the air conditioning opening and the case opening while the case cover is removed;
the heater is disposed in the case body behind the evaporator such that its long side direction is in the width direction of the vehicle and its short side direction is in the front-to-back direction; andthe evaporator and the heater can be attached to and detached from the case body via the air conditioning opening outside of the vehicle interior, while the case cover is removed from the case body to open the case opening.

US Pat. No. 10,421,338

VEHICLE AIR-CONDITIONING DEVICE

SANDEN HOLDINGS CORPORATI...

1. A vehicle air-conditioning device comprising:a compressor which compresses a refrigerant;
an air flow passage through which air to be supplied to a vehicle interior flows;
a radiator which lets the refrigerant radiate heat to heat the air to be supplied from the air flow passage to the vehicle interior;
a heat absorber which lets the refrigerant absorb heat to cool the air to be supplied from the air flow passage to the vehicle interior;
an outdoor heat exchanger disposed outside the vehicle interior to let the refrigerant absorb heat;
an outdoor expansion valve which decompresses the refrigerant flowing into this outdoor heat exchanger;
auxiliary heating means for heating the air to be supplied from the air flow passage to the vehicle interior; and
control means,
the vehicle air-conditioning device executing at least a heating mode in which the control means lets the refrigerant discharged from the compressor radiate heat in the radiator, decompresses the refrigerant by which heat has been radiated by the outdoor expansion valve, and then lets the refrigerant absorb heat in the outdoor heat exchanger, and in the heating mode, the vehicle air-conditioning device controlling a refrigerant subcool degree SC of the radiator by the outdoor expansion valve,
wherein on the basis of a radiator inlet air temperature THin that is a temperature of the air flowing into the radiator, the control means corrects a minimum valve position of the outdoor expansion valve in a lowering direction, as the radiator inlet air temperature THin rises.