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Patent Searching and Data


Matches 601 - 650 out of 8,687

Document Document Title
WO/1997/011324A1
A method and apparatus are disclosed for separation of non-condensible gas from recovered refrigerant collected in a collector tank (12). Non-condensible gas is intermittently vented from the collector tank. The vented non-condensible ga...  
WO/1997/009576A1
A container is provided for housing desiccant material therein and for facilitating fluid flow therethrough to a surrounding environment. The container comprises a cup member (14) including a base or bottom wall member and a generally cy...  
WO/1996/030695A1
A method and device is disclosed for removing residual oil and other contaminants from the refrigerant stream flowing to low-temperature stages of a cryogenic refrigerator. A stream of vapor and liquid refrigerant coming from an air-cool...  
WO/1996/029554A1
An outdoor machine having a four-way valve, a compressor, an outdoor heat exchanger and an expansion means connected via a piping in that order and an indoor machine having an indoor expansion means and an indoor heat exchanger connected...  
WO/1996/027107A1
This decompression device is provided with partition walls (2, 3) projecting from an inner surface of a tubular body (1). The partition walls (2, 3) are provided with orifices (4, 5). A plurality of decompression mechanisms comprising th...  
WO/1996/026867A1
A container (10) for particulate desiccant comprises a cup (14) and a cap (16). The cup (14) includes spaced inner (18) and outer (22) wall portions connected by a traverse web portion to define a chamber having an opening. The cap (16) ...  
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;...  
WO/1996/012921A1
An air conditioner which includes ports (22, 23, 24) provided on portions in a refrigerant circuit where oil are liable to gather, such as bottoms of a compressor (1), accumulator (5), a receiver (12) and the like, through which ports a ...  
WO/1996/009512A1
An evaporator (12) of the plate-fin construction has attached a formed housing (36) which together with the evaporator end plate (35) comprises a suction accumulator (26). A liquid conduit (23b) passes through the accumulator (26) and in...  
WO/1996/007088A1
A method of introducing a leak detection additive (48) into a closed refrigeration system (10) by a substrate containing the additive (48). A predetermined amount of the additive (48) is implanted on and absorbed into a host swatch (52) ...  
WO/1996/000369A1
An oil separator (10) for a refrigeration system (100) employing a screw compressor (108) includes a generally cylindrical, vertically upstanding housing (12) the bottom of which defines an oil sump (16) and the top of which is penetrate...  
WO/1995/029847A1
A container (10) for particulate desiccant (12) comprises a cup (14) and a cap (16). The cup (14) includes spaced inner and outer wall portions (18, 20) connected by a transverse web portion (22) to define a chamber (24) having an openin...  
WO/1995/030117A1
A refrigeration system comprises an evaporator (10) overfed with liquid refrigerant and discharging a mixture of vapor refrigerant and liquid refrigerant; a compressor (1) for compressing vapor refrigerant discharged from the evaporator;...  
WO/1995/018945A1
In a compression system which incorporates a rotary helical screw compressor a nonworking liquid oil is atomized through nozzles (126, 128) suspended in the suction gas flow. The oil stream to be degassed may first be degassed at compres...  
WO/1995/016886A1
A method for separating water and degradation products from lubricating oil in heat pumps or cooling machines comprising a closed circuit which includes a compressor (1), an evaporator and a condenser, wherein coolant is circulated in th...  
WO/1995/012792A1
For use with a heat exchange system having a compressor (CO'), condenser (CX'), evaporator (EX'), expansion device (EV') and circulating refrigerant, an efficiency enhancing apparatus. Comprising the apparatus is a liquid refrigerant con...  
WO/1995/003110A1
A device and method for making a filtering device for a refrigerant circuit including a hollow body (2) with a bottom (4) and an opposite opening (5) sealed with a sealing member (6, 36), said sealing member comprising a fluid outlet (8,...  
WO/1994/024497A1
A method and apparatus for controlling refrigerant gas pressure in a low pressure refrigeration system including a warm surface (24) within a container (20). Liquid refrigerant is removed from the refrigeration system evaporator (10) and...  
WO/1994/017348A1
An arrangement for removing from a refrigerating system or heat pump system a lubricating oil used together with a first type of refrigerant in the system and replacing this oil with an oil which is compatible with a second type of refri...  
WO/1994/012834A1
A compressor (21), an outdoor heat exchanger (23), an electric expansion valve (25) through which a refrigerant flows in the opposite directions, and an indoor heat exchanger (31) are connected to form a reversely operable refrigerant ci...  
WO/1993/010409A1
An auxiliary purge unit to be retrofitted to the existing purge unit (P2) of a low pressure refrigeration system includes a double-walled condenser portion, a pneumatic pressure chamber (A) and a discharged-refrigerant tank (T). The doub...  
WO/1993/004286A1
An unloading arrangement for a rotary screw compressor includes discrete and different unloading apparatus associated with the male and female rotors respectively. The unloading apparatus associated with the male rotor is an axial piston...  
WO/1992/018817A1
An absorption refrigeration system (10) having an absorber (26), a generator (12), and refrigeration solution pump (52) which flows relatively dilute refrigeration solution received from the absorber (26) to the generator (12) includes a...  
WO/1992/018816A1
An absorption refrigeration system (10) having absorber (26) and generator elements (44) and a solution pump flowing relatively dilute refrigeration solution from a system absorber sub-atmospheric operating pressure to a system generator...  
WO/1992/012347A1
An oil recovery system for refrigeration apparatus of the type in which an oil lubricated screw compressor is oriented with a suction inlet in communication with an evaporator chamber positioned under the compressor so that under conditi...  
WO/1992/006339A1
A vapour compression system, in which the pressure and flow rate of refrigerant in components of the system to control and to optimise use of heat-transfer surfaces and to minimise power consumption, comprises a compressor (1), a condens...  
WO/1991/019141A1
The object of the invention is to provide a method and apparatus for reclaiming refrigerants which includes a refrigerant boiler (6) having a refrigerant inlet (1) for admitting contaminated refrigerant into the boiler (6). The suction i...  
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...  
WO/1991/014143A1
A refrigeration process including a refrigeration cycle (1), and refrigerant purge and recovery operations is disclosed. The refrigeration cycle may be a vapor compression cycle (2) or an absorption cycle, for example. A purge stream (12...  
WO/1991/014142A1
In systems or units for collecting volatile liquids, e.g. refrigerants from scrapped refrigeration systems, the liquid may be successively filled into a closed collector tank (12), inasfar as the vapour of the liquid as collected in the ...  
WO/1991/008428A1
A device (48) is provided for sensing refrigerant temperatures in refrigerator systems, and for the control of refrigerant loading in a refrigerator evaporator circuit coils (34a, 34b). Such evaporator coils (34a, 34b) are supplied with ...  
WO/1991/008427A1
A device (48) is provided for sensing refrigerant temperatures in refrigerator systems, and for the control of refrigerant loading in a refrigerator evaporator circuit coil (34a, 34b). Such evaporator coils (34a, 34b) are supplied with r...  
WO/1990/014873A1
A condenser comprising cooled heat exchangers of some known construction for condensing a gas mixture so that most of the condensable gases in the first section are condensed and in the second section of a condenser a medium for absorbin...  
WO/1990/014565A1
A universal accumulator (10) for utilization in an automotive air conditioning system. An inlet fitting (26) and an outlet fitting (28) are connected to the top (20) of the accumulator housing (12). The adjustable connection of the outle...  
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...  
WO/1990/008931A1
In prior hot gas defrost systems for refrigeration systems part of the hot gas is diverted to flow through the cooling coil (34a, 34b), while the remainder flows through the condenser (16) to avoid overload of the compressor (10); as the...  
WO/1990/007092A1
Apparatus (1) for separating and removing contaminants from refrigerant of a vapour compression refrigeration system. The apparatus (1) has a primary separation chamber (3), a refrigerant inlet (8) through which contaminated refrigerant ...  
WO/1990/000710A1
The present invention relates to a device for controlling the supply of oil to a cooling and freezing plant which includes a number of freezing compressors (14-17) and a number of cooling compressors (26-31), whereby the cooling medium p...  
WO/1990/000709A1
The present invention relates to a device for controlling the supply of oil to a cooling and freezing plant which includes a number of freezing compressors (14-17) and a number of cooling compressors (26-31), whereby the cooling medium p...  
WO/1989/009371A1
Containment means in the form of water-absorbing polymers are included in the path of a refrigeration cycle to remove accumulated water or water vapor that inherently develops. Such polymers do not lose their efficiency even when they be...  
WO1989005428A3  
WO/1989/005428A2
A microprocessor provides a diagnostic capability, and includes tables of acceptable values of parameters, such as air discharge temperature, suction pressure, etc., for different automobile makes and air conditioner types; provision is ...  
WO/1989/003963A1
A refrigerant reclaim system includes a compressor (30), a heat exchanger (10), an oil separator (20), a condenser (40), a chill tank (50), a filter-dryer (63) and a cooling coil (65) in the chill tank. Refrigerant to be reclaimed is dra...  
WO/1989/000666A1
A heat pump (1) has a refrigerating circuit comprising a compressor (2), a condenser (3), an expansion valve (4), and an evaporator (5). The evaporator (5) is arranged essentially vertically and consists preferably of a buried refrigeran...  
WO/1988/007654A1
The apparatus (10) consists of a positive type compressor (36) which is driven by a motor (42) and to which refrigerant to be recovered is supplied via a centrifugal separator (24) into which an evaporator (23) and a heat exchanger (25) ...  
WO/1987/006683A1
An oil separator, applicable in compression refrigerating machines, comprises a vertical cylindrical casing (1) with a sleeve (4) for feeding a liquid cooling agent and with sleeves (5, 6) for feeding and carrying away a vaporous cooling...  
WO/1987/005381A1
A fluid flow control system for use with a heat exchange apparatus that includes a first heat exchanger or condenser (6) to extract heat from the heat exchange apparatus, a compressor (8) and a second heat exchanger or evaporator (10) to...  
WO/1987/002757A1
A refrigerant recovery and purification system (10) for recovering refrigerant from a heat pump, air conditioner, or other vapor compression refrigerant system into a storage tank while concurrently purifying the recovered refrigerant of...  
WO/1986/001882A1
Device for returning oil to at least one compressor (1) in a cooling or refrigerating system, in which the compressor sucks oil (16) from an oil collecting container (13) through at least one suction conduit (14) connected to the collect...  
WO/1983/001985A1
Charging and distributing device for a piston engine, the device including a variable displacement rotary compressor delivering through one of its shafts to a coaxial rotating distribution tube (1, 25), the tube being formed with ports (...  

Matches 601 - 650 out of 8,687