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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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WO/1995/023943A1 |
Pulse width modulation is used to control the flow rate through a solenoid expansion valve (16) in a refrigeration system (10). A first temperature sensor (30) is located near the evaporator inlet, and a second temperature sensor (28) is...
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WO/1995/010742A1 |
A reheater (46) is used in air-conditioning system which includes a compressor (12), a condenser (14), an expansion device (16), and an evaporator (18), interconnected by conduits in a closed loop. A centrifugal pump (32) boosts the pres...
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WO/1995/009335A2 |
The invention entails the use of a positive displacement pump (4) magnetically coupled to a drive motor (42) located in a conduit arrangement (60) this is parallel to the liquid line of the refrigeration system as in the figure. This par...
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WO/1995/005568A1 |
An automatic machine (10) for heating and refrigerating fluids comprises a pair of hydraulic circuits, which are connected to each other by means of suitable pipelines, each of said circuits respectively comprising an evaporator (11), an...
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WO/1994/012594A1 |
A refrigerator working fluid composition comprising an ammonia refrigerant and a lubricating oil which has a remarkably good compatibility therewith, and a method of lubricating a refrigerating unit suitable when the above composition is...
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WO/1994/011686A1 |
The invention concerns a condenser for a vehicle air-conditioning system, the condenser having a ribbed tube (10) fitted on each side with collector tubes (13, 14) which are divided by partition walls (17, 18) into an upper zone for cond...
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WO/1994/007091A1 |
The quantity of a refrigerant flowing into an evaporator (16) is regulated by adjusting the opening of an expansion valve (6) in accordance with the temperature and pressure of the refrigerant at the outlet side of the evaporator (16). T...
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WO/1994/002789A1 |
A closed loop vapor cycle refrigeration system having an enthalpy-expander-jet-compressor (100) is disclosed. A portion of the liquid refrigerant in the system is expanded into gas in the enthalpy expander (114). The expanded gas (122) i...
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WO/1993/020391A1 |
A condenser (46 or 94) is positioned in high-pressure refrigerant line (58) of a cooling system. The condenser (46 or 94) is formed of thermally-conductive material defining a closed reservoir (76 or 106) for accumulating liquid refriger...
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WO/1993/018357A1 |
An improved subcooling system for nonazeotropic working fluid leaving a condenser in a multi-compartment system passes the fluid leaving the condenser in heat exchange relationship with fluid evaporating within the evaporator (102). The ...
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WO/1993/006422A1 |
The invention comprises a non-restrictive, constant pressure refrigerant recycling and cooling unit that interrupts the normal refrigerant cycle to permit a lower temperature liquid to enter the expansion device (5), and thus provide a l...
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WO/1993/001459A1 |
A heat pumping system comprises a compressor (12), a condenser (13) communicating with the outlet of the compressor, and an evaporator (19) communicating with the inlet of the compressor through a suction conduit (18), while a flow restr...
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WO/1993/001458A1 |
For use with a refrigeration system to increase cooling efficiency, between an outdoor condenser and an indoor evaporator, a refrigerant receiver-sub-cooler is provided including, immediately before the receiver-sub-cooler, but still wit...
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WO/1993/000561A1 |
A flake ice machine (10) including a rotatable cooling member (12) defining cooling surfaces (20) and a plurality of internal refrigerant flow passages (76). The machine includes a spray tube (18) for introducing liquid material onto a p...
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WO/1992/006338A1 |
A refrigeration system is disclosed which utilizes an expansion engine (110) in the condensate line (38) of the condenser (28). The liquid leaving the condenser (28) drives the expansion engine (110) when it passes therethrough. The expa...
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WO/1991/019947A1 |
A method is presented for the transfer of heat from a low to a higher temperature, in that the main medium in gas form is heated and compressed, after which this main medium is conducted to a first heating chamber (1) where heat at low t...
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WO/1991/019140A1 |
A refrigerant filter/accumulator and an oil separator, both suitable for refrigerant recovery equipment, are disclosed. In the filter/accumulator (10) refrigerant enters (11), is filtered by cup-shaped filter (15), and liquid-refrigerant...
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WO/1991/003692A1 |
An automotive condenser (32) is disclosed as having vertically upstanding first (34) and second (36) headers communicating with inlet and outlet connections, respectively, and generally horizontally disposed tubes (38) connected into suc...
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WO/1990/012263A1 |
Compression refrigerating system with an oil and air separator (1) inserted between the refrigerant receiver (13) and the evaporators (1) of the system, and in which the refrigerant in the mixture of oil and refrigerant by its evaporatio...
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WO/1990/008930A1 |
A non-restrictive, constant pressure refrigerant recycling and cooling unit (20) that interrupts the normal refrigerant cycle to permit a lower temperature liquid to enter the expansion device (5), and thus provide a lower temperature, a...
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WO/1990/007683A1 |
The present invention involves the regulation of specific enthalpy at evaporator inlet by deliberate use of the pressure and/or temperature before throttling for capacity control. Capacity is controlled by varying the refrigerant enthalp...
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WO/1988/000676A1 |
An air-conditioning system which provides a controlled temperature and humidity environment. The system includes two indoor heat exchangers (5, 10), one outdoor heat exchanger (2), a four-way valve (8) and a compressor (1). Each heat exc...
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WO/1985/001097A1 |
A sealed, pressurized thermal storage system (20) which uses ice as the static thermal storage medium. The system is applicable to diverse cooling and storage requirements such as air conditioning and other relatively large scale cooling...
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