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WO/2001/051864A1 |
In a vapor compression refrigerator with closed loop feedback (EEV) of evaporator superheat, a superheat stabilizer (SS) consisting of a cavity (SS) connected between the evaporator outlet and the suction line inlet, the cavity (SS) comb...
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WO/2001/046629A1 |
A passive desuperheater for a vapor compression refrigeration system is disclosed. The passive desuperheater (11) includes a chamber (75) having two inlets (6,12) and an outlet (65), the first inlet (6) for introducing superheated gas in...
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WO/2001/038799A1 |
A heat pump with high coefficient of performance and a dehumidifying device with small energy consumption for each dehumidifying amount, comprising a booster (260) boosting refrigerant, a condenser (220) condensing the refrigerant and he...
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WO/2001/025699A1 |
A refrigerating cycle capable of sealing most portions on a high pressure side at a low load so as to increase a responsiveness to a high pressure, wherein the volume of an evaporator is set larger than that of a high pressure line so as...
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WO/2001/022009A1 |
A multi-stage compression refrigerating device, wherein refrigerant delivered from a condenser (1) is divided so as to feed one refrigerant from first decompression means (3) to a first intermediate cooler (6) and the other refrigerant f...
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WO/2001/022011A1 |
A heat pump system (6) for raising the temperature of a fluid comprises: a compressor (7) for compressing a working fluid; a desuperheater heat exchanger (8) provided with an inlet (9) and outlet (10) for a fluid to be heated and an inle...
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WO/2001/022008A1 |
A multi-stage compression refrigerating device, comprising low stage compression means (32) and high stage compression means (34), a condenser (1), first decompression means (3), an intermediate cooler (6), second decompression means (7)...
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WO/2001/022012A1 |
The invention relates to an air conditioning unit with a coolant circuit which consists of a compressor, an evaporator, a collector located at the low pressure side between the evaporator and the compressor and an inner heat transfer uni...
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WO/2001/006182A1 |
A refrigerating cycle, comprising an inlet side passage (11) communicating an expansion device (5) with a radiator side, an outlet side passage (12) communicating with an evaporator side, a valve seat (16) provided between the inlet side...
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WO/2001/006183A1 |
A refrigerating cycle using a refrigerant having a low critical point such as CO¿2?, wherein first and second valve discs (23, 27) making a communication state vary between an inlet side passage part (11) and an outlet side passage part...
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WO/2001/001051A1 |
A refrigerant condenser which comprises a core (10) including a number of parellel tubes (11), and headers (20, 30) attached to both sides of the core (10). The refrigerant condenser further comprises a tank (50) attached to the header (...
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WO/2000/068621A1 |
A refrigerating cycle using carbon dioxide as a refrigerant, wherein, when a high-pressure side refrigerant pressure is near a critical point, the degree of undercooling is set at approx. 15°C and, as it lowers from near the critical po...
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WO/2000/049346A1 |
A refrigerant supercooling circuit comprising a receiver (5) for retention of a liquid-phase refrigerant installed in a refrigerant line (23) connecting a first expansion valve (45) and a plurality of second expansion valves (71), an ext...
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WO/2000/049345A1 |
The invention is embodied in a refrigeration unit (R) adapted for use in combination with plural associated refrigerated fixtures (33a, 33b, 33c) in a commercial store, each fixture having a product zone and heat transfer cooling means (...
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WO/2000/046558A1 |
The invention relates to an integrated collector-heat transfer unit, comprising a collector housing (1) in which a collector chamber (2) and a heat transfer unit having two separate heat transfer channels (5, 6) are located, said channel...
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WO/2000/036344A1 |
A modular versatile heat pump system for drying and air-conditioning is disclosed. The refrigerating components of the heat pump, comprising the compressor (40a), condenser (41), evaporators (45, 52) and expansion valves, are housed in a...
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WO/2000/032994A1 |
The invention relates to a ventilation arrangement for buildings with heat removal from an exhaust air flow (L¿Ab?) discharged from the building and/or from a fresh air flow (L¿Zu?) supplied to the building. Said arrangement comprises ...
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WO/2000/031479A1 |
An expansion device having an integrally incorporated mechanism that can prevent an abnormal rise in a high pressure of a refrigeration cycle and can also deal with abnormal increases in the high pressure and a low pressure. A displaceme...
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WO/2000/025071A1 |
The invention relates to a method and several embodiments of a condenser for condensing to a saturated state and subsequently supercooling the coolant of a motor vehicle air conditioning. The route of the coolant is split into at least t...
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WO/2000/023752A1 |
A refrigerating cycle wherein the pressure of a high pressure line (8) is lowered when the pressure is abnormally high by transmitting the high pressure to the low pressure line (9) without releasing the coolant to the atmosphere, and th...
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WO/2000/011417A1 |
A double-tube type heat exchanger (1) capable of forming a compact and inexpensive gas injection circuit and an over-cooling circuit, wherein a restriction hole (6) through which refrigerant led into an outer tube (3) is led into an inne...
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WO/2000/003882A1 |
A CO¿2?-operated air conditioning system for a motor vehicle, whereby the individual components (10, 11, 12, 13, 14, 15) are configured or adapted to each other in such a way that whenever high pressures diverge from optimum high pressu...
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WO/1999/061849A1 |
A geothermal heating and/or cooling system includes a subterranean heat exchanger (1) having tubes (5) disposed against a conductive sheet (9). The system also preferably includes a reservoir vessel (55) for holding a supply of heat tran...
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WO/1999/058908A1 |
A heat exchanger (1), wherein both end parts of tubes (4), which are overlapped one upon another with fins (5) provided therebetween, are connected communicably to a pair of header pipes (6 and 7), a heat exchange medium flows through th...
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WO/1999/058905A1 |
The invention relates to a method for producing cold in the temperature range between 65 and 150 degrees Kelvin. The invention also relates to a device which comprises an oil-lubricated compressor (1) for compressing a coolant, a seconda...
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WO/1999/055544A2 |
The invention relates to a vehicle air conditioning system having a coolant circuit (12) comprised of at least one condenser (14), one expansion organ (16), one evaporator (18), and one compressor (20). The inventive air conditioning sys...
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WO/1999/054672A1 |
The invention concerns an air conditioning condenser (2) for a motor vehicle passenger compartment comprising a reservoir (2b) mounted on a base (30). The reservoir (2b) is axially screwed in the base (30), itself soldered on a manifold ...
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WO/1999/034156A1 |
A refrigerating cycle, wherein supercritical fluid is used as refrigerant and an internal heat exchanger is installed for heat-exchanging refrigerant between the outlet side of a gas cooler and the inlet side of a compressor, having a re...
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WO/1999/026028A1 |
A refrigerating apparatus comprising a supercooling circuit (8) having a supercooling heat exchanger (15) provided between a condenser (3) and a main expansion mechanism (9), and an injection circuit (10) for injecting into an intermedia...
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WO/1999/020958A1 |
Method for operating a refrigeration system (20) by means of a refrigerant circuit, in which to condensate the refrigerant in said circuit a cooling water circuit is used, incorporating an evaporative condenser (6), evaporation losses fr...
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WO/1999/017064A1 |
An improvement for a refrigeration system that includes a refrigerant circuit and a compressor with condenser assembly (40). The improvement is a pre-cooling device (10) connected to the output of the condenser (40) and includes an inlet...
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WO/1999/015841A1 |
An air conditioner in which an outdoor unit (24) having a compressor (1) and an outdoor heat exchanger (2) and a plurality of indoor units (25) each having an indoor heat exchanger (4) and an expansion valve (3) are connected through a g...
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WO/1999/015093A1 |
A cryosurgical system comprises a compressor unit (14), and a probe assembly (12). A secondary refrigerant stream from the compressor unit (14) pre-cools a heat exchanger (26) within the probe assembly (12) in a standby mode of operation...
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WO/1999/013277A1 |
A refrigeration system has a compressor (10), a condenser (11), a capillary flow control (12) and an evaporator (13). A variable sub-cooling device (15) extracts heat from the refrigerant at a region at or just prior to the capillary flo...
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WO/1999/010690A1 |
A receiver tank comprising an elongated, closed vessel provided with an inlet (24) and an outlet (25) for a liquid refrigerant to store therein the liquid refrigerant, an opening formed on top of the receiver tank (2), an engagement memb...
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WO/1999/010686A1 |
A cooling cycle formed so as to improve the cooling performance thereof by allowing a liquid phase refrigerant to constantly exist in a gas-liquid separator even when a supercritical fluid is used as a refrigerant for a multiple effect c...
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WO/1999/008053A1 |
A cooling cycle using a supercritical fluid as a refrigerant, capable of regulating the quantity of the refrigerant over a wide range, and adapted to reduce a required capacity of a refrigerant tank provided for increasing and decreasing...
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WO/1998/059202A1 |
A water vaporizing type cooler of a small size heat-generating element which lowers the temperature of the heat-generating element below the ambient temperature and which is suitable for the environmental preservation. The water vaporizi...
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WO/1998/044301A1 |
A heat transfer system for use in cooling and dehumidifying an interior space while rejecting heat to several alternative sources. The system incorporates three primary heat transfer coils (40, 60, 80) in a mechanical refrigeration cycle...
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WO/1998/006983A1 |
An air conditioner which comprises a refrigerant circuit (1), in which a refrigerant flows through a compressor (2), a condenser (3), a heat exchanger (10) for supercooling, a first expansion mechanism (4) and an evaporator (5) in this o...
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WO/1997/039292A1 |
The 8 kW refrigerating system comprises a condenser, evaporator and two-stage centrifugal compressor assembly with an electric motor provided with a cooling system. The condenser inlet is connected to the compressor assembly outlet, whil...
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WO/1997/038269A1 |
The proposed refrigeration system (10) includes an evaporator (20), which allows inherent absorption of heat from the ambient, a condenser (14) returning refrigerant to a liquid state, a compressor (12) delivering refrigerant within the ...
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WO/1997/027072A1 |
The description relates to a roof-mounted air-conditioning unit (10) for a road vehicle, with a compressor (12), a condenser or gas cooler (14), an expansion device (18) and an evaporator (20), in which at least the evaporator (20) or ga...
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WO/1997/026491A1 |
A process comprised of an initiating cycle (3-4-2), which is a reversed Carnot refrigeration cycle (or a cycle that has the potential of reversed Carnot refrigeration) and a reclaiming cycle (5-7-4), which is a cycle containing refrigera...
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WO/1997/011326A1 |
Apparatus and method for freezing large pipe plugs, including in particular subsea applications, wherein the apparatus includes a jacket (14) adapted to encircle a section of large pipe (P), a recycling refrigeration unit having said jac...
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WO/1997/001067A1 |
A condenser for a cooling circuit conveying a refrigerant, including a bundle of tubes (12) mounted between a first collecting box (16) and a second collecting box (18), an inlet (22) for the gaseous refrigerant, an outlet (24) for the c...
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WO/1996/034237A1 |
A refrigeration system includes in a closed loop connection a compressor (14) for compressing a refrigerant, a desuperheater (24) for cooling the hot compressor discharge gas via the injection of liquid refrigerant, and a condenser (28) ...
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WO/1996/020378A1 |
A vapour compression system in which a quantity of a refrigerant circulates between at least two pressure levels in a condenser and an evaporator respectively, comprises a compressor (1) for increasing the pressure of refrigerant vapour;...
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WO/1995/033166A1 |
The present invention is directed to a heat pump system (10) and more particularly to a self-contained heat pump system incorporating a microprocessor based control system (162), a desuperheater (107), a dedicated refrigerant-potable wat...
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WO/1995/025251A1 |
Liquid pressure amplification with bypass is used in an air-conditioning or refrigeration system which includes a compressor (12), a condenser (14), a pump (32), an expansion valve (16), and an evaporator (18), interconnected by conduits...
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