| Patents for F25B 31 - Compressor arrangements (3,736) |
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| 06/18/1991 | US5024060 Joule-Thomson refrigeration cycle employing a reversible drive electrochemical compressor |
| 06/05/1991 | CN1051963A Oil reclaim system |
| 06/04/1991 | US5021915 Combination starter-protector device and method of assembling same, overload protector and method of assembling same |
| 05/22/1991 | EP0428473A1 Oil reclaim system |
| 05/21/1991 | US5016447 Oil return for a two-stage compressor having interstage cooling |
| 05/14/1991 | CA1284035C Liquid/gas bypass |
| 05/08/1991 | EP0426152A1 Compressor and method of detecting quantity of mixture of coolant and lubricant in the compressor |
| 05/07/1991 | US5012652 Crankcase heater control for hermetic refrigerant compressors |
| 05/01/1991 | CN1051080A Compressor system with demand cooling |
| 04/24/1991 | EP0423976A1 Compressor refrigeration system with demand cooling |
| 02/19/1991 | CA1280389C Reciprocating piston compressor for small refrigerating machines |
| 01/09/1991 | EP0406866A1 Oil separator integrally mounted on compressor |
| 01/08/1991 | CA1278691C Temperature sensitive solenoid valve in a scroll compressor |
| 12/19/1990 | EP0403239A2 Capacity controllable compressor apparatus |
| 12/11/1990 | CA1277501C Suction line flow stream separator for parallel compressor arrangements |
| 12/04/1990 | US4974427 In a refrigeration system |
| 11/06/1990 | US4967572 Compressor assembly for supplying helium to a cryo-refrigerator |
| 10/31/1990 | CN1046594A Heat pipe enclosed refrigeration compressor |
| 10/04/1990 | DE3910414A1 Compressor for refrigerating/deep-freezing appliances or plants |
| 10/02/1990 | US4959975 Heat pump system |
| 10/02/1990 | US4959971 Refrigerant piping system for refrigeration equipment |
| 09/18/1990 | CA1274095A1 Oil management in a parallel compressor arrangement |
| 08/02/1990 | DE3902745A1 Heat-pump installation |
| 07/12/1990 | CA2024103A1 Removal of an antigenic substance from a fluid |
| 07/03/1990 | US4938664 Oil reclaim system |
| 06/26/1990 | US4936112 Gas compressors |
| 06/20/1990 | CN1008466B Cylinder block for refrigerating compressor |
| 06/12/1990 | US4932215 Control apparatus for multi-air-conditioner system |
| 05/29/1990 | US4928500 Control device for freezer |
| 05/09/1990 | CN2056855U Medical cooling machine for human body by physical method |
| 04/17/1990 | US4916914 Air conditioning, heat pumps |
| 04/04/1990 | EP0361089A1 Motor compressor unit for refrigeration or heat pump application |
| 04/03/1990 | US4912937 Air conditioning apparatus |
| 03/28/1990 | EP0360448A2 Condensing unit with a system for mounting a motor-compressor |
| 03/21/1990 | CN2054889U Separation type magnetic driving compression apparatus for refrigerator |
| 03/21/1990 | CN2054888U Enclosed hot pipe refrigerating compression engine |
| 03/14/1990 | CN1007173B Reciprocating-piston compressor for small refrigerator and method for assembling same |
| 03/01/1990 | DE3828514A1 Method for operating a refrigeration system |
| 02/27/1990 | US4903497 Methods and devices for cooling a motor of a refrigerating machine with liquid and economizer gas |
| 02/14/1990 | EP0354263A1 Helium-supplying compressor for a cryogenic refrigerator |
| 02/13/1990 | US4899555 Evaporator feed system with flash cooled motor |
| 01/31/1990 | CN2052063U Magnetically-driven compressor |
| 01/25/1990 | WO1990000710A1 Device for controlling the supply of oil to a cooling and freezing plant |
| 01/25/1990 | WO1990000709A1 Intermediate cooling aggregate in a cooling and freezing plant |
| 01/23/1990 | US4895496 Refrigeration compressor |
| 01/17/1990 | CN1038860A 致冷压缩机 Refrigeration compressor |
| 12/13/1989 | EP0345919A2 Refrigeration compressor |
| 11/29/1989 | EP0343662A2 Rotary displacement compression heat transfer systems incorporating highly fluorinated refrigerant-synthetic oil lubricant compositions |
| 11/08/1989 | CN2047350U Energy-saving compressor |
| 11/07/1989 | US4878355 Method and apparatus for improving cooling of a compressor element in an air conditioning system |
| 11/02/1989 | EP0339267A2 Air conditioning apparatus |
| 10/03/1989 | US4870831 Multi-type air conditioner system with oil level control for parallel operated compressor therein |
| 09/26/1989 | CA1259972A1 Fluid compressor with rotational speed detecting device |
| 09/20/1989 | CN2044704U Single-screw refrigeration compressor |
| 09/19/1989 | US4867657 Scroll compressor with axially balanced shaft |
| 08/30/1989 | EP0330198A2 Heat exchanger as an injection evaporator for a refrigeration machine |
| 08/23/1989 | EP0329199A1 A method of curtailing power for driving a compressor in a heat pump and a compressor operating according to such a method |
| 08/08/1989 | US4854829 Structure for motor-compressor units used with refrigerant fluids |
| 08/01/1989 | US4852366 Heat pump and system |
| 07/04/1989 | US4843837 Heat pump system |
| 05/23/1989 | US4832068 Liquid/gas bypass |
| 05/23/1989 | US4831828 Cryogenic refrigerator having a convection system to cool a hermetic compressor |
| 05/16/1989 | US4829786 Flooded evaporator with enhanced oil return means |
| 04/26/1989 | EP0313024A1 Hermetically enclosed compressor with mechanical and electrical connection means |
| 04/11/1989 | US4820130 Temperature sensitive solenoid valve in a scroll compressor |
| 03/08/1989 | EP0306405A1 Methods and devices for cooling a motor of a refrigerating machine with liquid and economiser gaz |
| 02/08/1989 | EP0302677A1 Gas compressors |
| 01/31/1989 | US4800736 Heat pump |
| 01/31/1989 | US4800732 Refrigeration compressor with dual voltage hookup |
| 01/31/1989 | US4800730 Arrangement for influencing the speed of a compressor of a refrigerating system |
| 01/26/1989 | WO1989000666A1 Heat pump |
| 01/25/1989 | EP0300866A1 Hermetic motor compressor |
| 01/18/1989 | EP0299947A1 Heat pump |
| 01/04/1989 | EP0196314B1 A cooling or refrigerating system |
| 11/17/1988 | EP0291466A2 Motor compressor unit for refrigerants |
| 11/01/1988 | US4781551 Rotary compressor with low-pressure and high-pressure gas cut-off valves |
| 11/01/1988 | US4781032 Energy conserving compressor refrigeration apparatus |
| 10/25/1988 | CA1243573A1 Control device |
| 10/18/1988 | US4778105 Control device |
| 10/12/1988 | EP0187792B1 Arrangement for influencing the speed of a compressor of a refrigerating system |
| 09/14/1988 | CN85109118B Circular system for freezing |
| 09/14/1988 | CN85103401B Improved lubrication for rotary compressor vane |
| 09/13/1988 | US4770058 Reciprocating piston compressor for small refrigerating machines and its assembly method |
| 09/06/1988 | CA1241547A1 Compressor auxiliary condenser arrangement adapted to be mounted in a refrigerator machinery compartment |
| 07/26/1988 | US4759698 Rotary compressor with oil conveying means to shaft bearings |
| 06/21/1988 | US4751824 Energy conserving refrigeration valve control apparatus |
| 06/14/1988 | US4750337 Oil management in a parallel compressor arrangement |
| 05/31/1988 | US4747276 Helium compressor apparatus |
| 05/03/1988 | US4741674 Manifold arrangement for isolating a non-operating compressor |
| 03/22/1988 | CA1234376A1 Lubrication for rotary compressor vane |
| 03/08/1988 | US4729728 Compressor with improved lubricating system |
| 03/08/1988 | US4729228 Suction line flow stream separator for parallel compressor arrangements |
| 02/16/1988 | US4724928 Single stage oil pump lubrication system |
| 02/02/1988 | US4722671 Cylinder block for a refrigeration compressor |
| 01/26/1988 | CA1231844A1 Device for oil cooling in a compression unit and, particularly, a screw compression unit |
| 01/21/1988 | DE3622805A1 Method and arrangement for operating a compression-heat pump |
| 01/21/1988 | DE3622743A1 Heat pump |
| 01/14/1988 | WO1988000320A1 Refrigeration system having periodic flush cycles |
| 01/07/1988 | EP0250665A1 A rotary compressor |
| 12/29/1987 | US4715196 Oil returning mechanism of evaporator for air conditioner |