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7624583 |
Freezer device
A refrigeration system comprises a refrigerant circuit ( 10 ) in which a compressor ( 21 ), an outdoor heat exchanger ( 24 ) and an indoor heat exchanger ( 33 ) are connected to operate on a...
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7472562 |
Compressor and mechanism for separating lubricating liquid
A refrigerant go-around passage is provided in a housing of a compressor. The passage takes in refrigerant discharged from a compression mechanism into the housing, makes the refrigerant go around...
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7386994 |
Oil separator and cooling-cycle apparatus using the same
Disclosed herein are an oil separator and a cooling-cycle apparatus using the oil separator. To a casing of the separator is connected an inflow tube to supply gaseous refrigerant and oil into the...
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7360373 |
Vehicle air-conditioning system
An evaporator placed in a vehicle compartment includes a meandering flattened pipe, a header joined with one end of the flattened pipe for introducing a compressed refrigerant from a compressor...
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7310970 |
Refrigerant/oil separator
An apparatus for separating an oil from a refrigerant has a housing, an inlet conduit for receiving a refrigerant/oil mixture, a separator medium, a refrigerant outlet conduit, and an oil outlet...
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7296427 |
Hybrid compressor device for a vehicle
In a hybrid compressor for a vehicle where a vehicle engine is stopped when the vehicle is temporally stopped, a pulley, a motor and a compressor can be driven in independent from each other, and...
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7249467 |
Gas-liquid separator for refrigerant cycle system
A gas-liquid separator (accumulator) is arranged at a refrigerant suction side of a compressor of a refrigerant cycle system mounted in a vehicle. The gas-liquid separator includes a gas-liquid...
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7222491 |
Air conditioner and method for performing oil equalizing operation in the air conditioner
An air conditioner including an outdoor unit including a first compressor and a second compressor connected in parallel to the first compressor, an outdoor unit connected in parallel to the outdoor...
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7219503 |
Quick-change coalescent oil separator
A refrigeration system including a coalescent oil separator for removing oil from a refrigerant gas and oil mixture discharged from a compressor. Upon a pressure condition being exceeded a...
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7204098 |
Oil separation structure for refrigerant compressor
The present invention relates to a structure for separating oil from a refrigerant gas containing the oil. The refrigerant gas is discharged from a refrigerant compressor which forms a part of...
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7181926 |
Oil separator and muffler structure
An oil separator-muffler for a compressor includes an inner chamber with an oil accumulation region and a wall positioned in the inner chamber. The wall defines a separator region and has an...
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7168264 |
Refrigerant cycling device
A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second...
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7114347 |
Closed cycle refrigeration system and mixed component refrigerant
A closed cycle refrigeration system in conjunction with specific mixed or multiple component refrigerant fluids to produce temperatures in the range of 230° K to 70° K. The mixed component...
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7104076 |
Lubricant return schemes for use in refrigerant cycle
A control algorithm is developed which takes corrective action in the event that system conditions indicate there may be an inadequate flow of lubricant in the system. In particular, if a discharge...
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7082785 |
Oil separator for vapor compression system compressor
A transcritical vapor compression system includes a compressor assembly that includes an oil separator for separating oil from refrigerant. The oil separator is disposed between a motor and a...
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7082774 |
Compressor oil removal in ammonia refrigeration system
Automatic oil removal from an ammonia evaporator/low pressure vessel in a refrigeration system is disclosed. A liquid refrigerant level controller is utilized to drain the oil. The controller works...
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7051551 |
Compressor
A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second...
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6993932 |
Refrigerant cycle system
A refrigerant cycle system in which the arrangement of a connecting pipe for connection between a compressor and an accumulator is improved effectively to recover oil collected in the accumulator...
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6962059 |
Refrigerating cycle device
To prevent heat transfer inhibition and an increase in pressure loss due to refrigerating machine oil discharged into a cycle, and to provide a compact and highly efficient refrigerating cycle...
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6948335 |
Compression mechanism for refrigeration system
The present invention provides an oil equalizing circuit for a refrigeration system provided with a plurality of compression mechanisms, the oil equalizing circuit being capable of supplying...
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6945073 |
Refrigerant cycling device and compressor using the same
A refrigerant cycling device is provided, wherein a compressor comprises an electric motor element, a first and a second rotary compression elements in a sealed container. The first and the second...
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6941767 |
Compression mechanism oil equalizing circuit, refrigeration system heat source unit, and refrigeration system provided with the same
The present invention provides an oil equalizing circuit that can improve the reliability of the oil supply to the compression mechanisms in a refrigeration system provided with a plurality of...
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6931886 |
Apparatus for the return of lubricant for a refrigeration machine
In accordance with the invention an apparatus is proposed for the return of lubricant for a refrigeration machine (K). The lubricant return comprises a container ( 2 ) with at least one sheet metal...
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6886361 |
Liquid chiller evaporator
A shell and coil type heat exchanger evaporator provides cooling for industrial coolants characterized by high viscosity and a poor heat transfer coefficient. A large heat transfer surface area is...
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6874328 |
Hybrid compressor device
In a hybrid compressor for a vehicle where a vehicle engine is stopped when the vehicle is temporally stopped, a pulley, a motor and a compressor can be driven in independent from each other, and...
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6868681 |
Air conditioner
Disclosed herein is an air conditioner comprising a plurality of indoor units and a common outdoor unit connected to each of the indoor units. The air conditioner further includes an additional...
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6854281 |
Check device for an air conditioning system of an automobile and an air conditioner compressor
A check device for an air conditioning system of an automobile and an air conditioner compressor includes a first path for containing coolant flowing therein. An air conditioner compressor, a...
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6767524 |
Process to produce nearly oil free compressed ammonia and system to implement it
Process and system to produce nearly oil free ammonia using a rotary compressor with liquid injection from a separator tank where the liquid in the tank includes oil and liquid ammonia. The level...
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6722858 |
Oil-cooled type compressor
The oil-cooled type compressor 1 A houses therein an inspecting flow passage 19 branched from a discharge flow passage 12 on the secondary side of an oil separation recovering portion 14 and...
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6698232 |
Oil leak diversion and collection system for mechanical shaft seals
A compressor oil diversion and collection system used in a compressor having a housing, a crankshaft having shaft seals, refrigerant and a compression device for compressing the refrigerant. The...
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6681596 |
Dryer for a refrigerator and method for mounting the dryer
A dryer for a refrigerant circuit of a refrigerator includes a housing with a first and a second passage orifice. The cross-section of the first passage orifice includes a circular main portion,...
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6675607 |
Swash plate type compressor
An oil separator is provided on a bleeding channel inside the shaft 16. By integral rotation of the shaft 16 and a rotary valve, oil contained in a refrigerant gas is centrifuged via the oil...
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6655173 |
Evaporator for refrigerating machine and refrigeration apparatus
An evaporator for a refrigerating system which prevents droplets of refrigerant from blowing upwards, and a refrigeration apparatus using thereof are provided. The evaporator for a refrigerating...
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6644045 |
Oil free screw expander-compressor
The expansion device in a refrigeration or air conditioning system is an expressor. The expresser is made up of a twin screw expander and a twin screw compressor with rotors of the expander...
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6640559 |
Vertical oil separator for a chiller system
A device and method is provided for separating oil from an oil and gas mixture in a chiller system. The device includes a housing, an oil and gas inlet, a gas outlet, an oil outlet, a baffle, and a...
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6604371 |
Oil amount detector, refrigeration apparatus and air conditioner
An oil holding tank ( 40 ) is communicated to the case ( 10 c ) of the compressor ( 10 ). Part of the refrigerant discharged from the compressor ( 10 ) is introduced into the oil holding tank ( 40...
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6574986 |
Oil separator and outdoor unit with the oil separator
An oil separator including a shell ( 50 ) with a cylindrical section and a taper section which narrows in a downward direction and which is formed as an integral part at the bottom of the...
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6564573 |
Concentrated ammonia aqueous solution tank used in absorption diffusion type refrigerating equipment
The present invention proposes a concentrated ammonia aqueous solution tank used in an absorption diffusion type refrigerating equipment. The present invention is characterized in that a capillary...
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6516627 |
Flowing pool shell and tube evaporator
An evaporator for a refrigeration chiller includes a tube bundle in which at least a portion of the tubes of the tube bundle are immersed in a pool which include both liquid refrigerant and is...
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6467287 |
Valve arrangement for a compressor
A compressor and oil separator assembly for compressing a fluid includes a suction end, a discharge end, and first and second rotors rotatably mounted between the suction and discharge ends. A...
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6405542 |
Liquid refrigerant separator
A refrigeration system including a condenser, a compressor, an evaporator and an accumulator is provided. The refrigeration system includes a device for preventing condensation of liquid...
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6349561 |
Refrigeration circuit for vehicular air conditioning system
A vehicular air conditioning system ( 10 ) includes a compressor ( 110 ) having a crank chamber ( 138 ), a suction chamber ( 120 ), and a discharge chamber ( 122 ). A refrigerant mixture includes...
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6237362 |
Internal oil separator for compressors of refrigeration systems
An internal oil separator for compressors of refrigeration systems is disclosed. This oil separator supplies an effective quantity of lubrication oil to the drive parts of a compressor, and...
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6233967 |
Refrigeration chiller oil recovery employing high pressure oil as eductor motive fluid
A refrigeration chiller makes use of the flow of oil from an oil sump location to the chiller's compressor to power an eductor to return oil which has made its way to the evaporator of the chiller...
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6223549 |
Refrigeration cycle device, a method of producing the device, and a method of operating the device
A refrigeration cycle device having a first refrigeration circuit for circulating a refrigerant from a compressor through a heat exchanger on a heat source equipment side, a flow rate adjuster, a...
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6205808 |
Prevention of oil backflow from a screw compressor in a refrigeration chiller
A screw compressor in a refrigeration chiller includes one or more baffles disposed in the compressor housing so as to intercept and redirect oil which may flow and/or be blown, under certain...
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6185955 |
Refrigerating system which can favorably use as a refrigerant, a fluid smaller in specific volume than a general refrigerant
In a refrigerating system using a given refrigerant, a compressor (1) contains lubricating oil and compresses the given refrigerant into a supercritical state having pressure higher than the...
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6182467 |
Lubrication system for screw compressors using an oil still
A portion of the condensed liquid in a condenser is diverted to a generator where it supplies heat to boil off refrigerant from a refrigerant oil mixture and is thereby subcooled. The subcooled...
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6145326 |
Forced oil cooling for refrigeration compressor
The invention is a method and apparatus for cooling compressor oil in a refrigeration system by passing the oil through a heat exchanger cooled by evaporating refrigerant. The refrigerant is pumped...
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6134898 |
Positive-displacement-type refrigerant compressor with a novel oil-separating and lubricating system
A capacity type refrigerant compressor having a compression chamber in which a refrigerant introduced from a suction system is compressed and discharged as a compressed high pressure refrigerant,...
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