| Patents for F25B 1 - Compression machines, plant or systems with non-reversible cycle (15,293) |
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| 10/30/1990 | US4966006 Refrigeration plant and method of controlling a refrigeration plant |
| 10/24/1990 | EP0393950A1 Control apparatus used for refrigerant circuit having a compressor with a variable displacement mechanism |
| 10/16/1990 | US4963280 Adding polar liquid |
| 10/16/1990 | US4962647 Refrigerating circuit apparatus with two stage compressor and heat storage tank |
| 10/09/1990 | US4961323 Automotive air conditioner |
| 10/02/1990 | US4959969 Refrigerating circuit apparatus with memory having a plurality of controlling modes |
| 09/25/1990 | US4958502 Controller for a refrigeration unit |
| 09/18/1990 | CA1274095A1 Oil management in a parallel compressor arrangement |
| 09/18/1990 | CA1274094A1 Reverse cycle heat reclaim coil and subcooling method |
| 09/12/1990 | CN1045291A Compressor for heat pump and method of operating said compressor |
| 09/05/1990 | EP0385560A2 Compressor for heat pump and method of operating said compressor |
| 08/28/1990 | US4951741 Chemical heat pump system for producing heat and cold |
| 08/14/1990 | US4947657 Auxiliary air conditioning apparatus and method for air conditioned vehicles |
| 08/14/1990 | US4947655 Refrigeration system |
| 08/08/1990 | EP0381389A1 Working media for a thermodynamic engineering device |
| 08/08/1990 | EP0380478A1 Refrigerated tank container |
| 08/07/1990 | US4945733 Refrigeration |
| 07/31/1990 | US4944163 For fluid flow control in a thermal management system |
| 07/31/1990 | US4944160 Thermostatic expansion valve with electronic controller |
| 07/12/1990 | WO1990007683A1 Trans-critical vapour compression cycle device |
| 07/12/1990 | CA2024103A1 Removal of an antigenic substance from a fluid |
| 07/11/1990 | EP0377158A2 Dual evaporator, dual fan refrigerator with independent temperature controls |
| 07/03/1990 | US4938029 Unloading system for two-stage compressors |
| 07/03/1990 | CA2006784A1 Chilling system with vapor refrigerant and desiccant |
| 06/27/1990 | EP0374688A2 Refrigerator system with dual evaporators for household refrigerators |
| 06/27/1990 | CN1043383A Method and apparatus for operating refrigeration system |
| 06/26/1990 | US4936108 Vapor pressure-adjusting valve and refrigeration system using same |
| 06/26/1990 | US4936107 External heat exchange unit with plurality of heat exchanger elements and fan devices and method for controlling fan devices |
| 06/19/1990 | US4934158 Refrigerating system for use in vehicle with engine which enables selective use of commercial AC power source and a generator driven by the engine for driving a refrigerant compressor |
| 06/12/1990 | US4932220 Air conditioner system with optimum high pressure control function |
| 06/05/1990 | US4930320 Cooling fan controlling apparatus for vehicle with air conditioner |
| 05/30/1990 | EP0258234B1 Refrigeration system |
| 05/29/1990 | US4928500 Control device for freezer |
| 05/16/1990 | EP0368371A2 Method and apparatus for gas conditioning by low-temperature vaporization and compression of refrigerants, specifically as applied to air |
| 04/25/1990 | EP0365351A2 Method and apparatus for operating a refrigeration system |
| 04/25/1990 | CN2056454U Full seal compressor with silencing of noise and saving energy |
| 04/24/1990 | US4918942 Refrigeration system with dual evaporators and suction line heating |
| 04/24/1990 | US4918937 Hybrid thermal powered and engine powered automobile air conditioning system |
| 04/18/1990 | CN2056228U Air-cooled cold water machine set |
| 04/17/1990 | US4916914 Air conditioning, heat pumps |
| 04/12/1990 | DE3834302A1 Method for multi-stage, more efficient heat-pumping by means of compressor machines having hot-liquid radiators connected upstream for high heat-utilisation temperatures |
| 04/10/1990 | US4914921 Refrigeration method and apparatus using aqueous liquid sealed compressor |
| 04/04/1990 | EP0361539A2 Expansion valve for regulating the flow of refrigerant to an evaporator of a refrigeration plant or heat pump |
| 04/04/1990 | EP0361089A1 Motor compressor unit for refrigeration or heat pump application |
| 03/27/1990 | US4910972 Refrigerator system with dual evaporators for household refrigerators |
| 03/27/1990 | US4910968 Refrigerating apparatus |
| 03/21/1990 | CN1007290B Compressed steam refrigeration device |
| 03/07/1990 | CN1007086B Air-conditioning equipment |
| 03/06/1990 | US4905894 Refrigerant heating type air conditioner |
| 03/06/1990 | US4905481 Thermal energy transfer system |
| 03/06/1990 | US4905477 Refrigerant circuit with passageway control mechanism |
| 02/28/1990 | EP0355946A2 Refrigerating system for use in vehicle with engine which enables selective use of commercial AC power source and a generator driven by the engine for driving a refrigerant compressor |
| 02/28/1990 | CN1007008B Heat transfer circuit |
| 02/27/1990 | US4903497 Methods and devices for cooling a motor of a refrigerating machine with liquid and economizer gas |
| 02/14/1990 | CN1006823B Device for controlling the capacity of a variable capacity compressor |
| 02/13/1990 | US4899555 Evaporator feed system with flash cooled motor |
| 02/07/1990 | EP0354037A2 Apparatus for the sensing of refrigerant temperature for the control of an evaporator valve |
| 02/07/1990 | EP0353300A1 Cooling unit for two-chamber refrigerator |
| 01/30/1990 | US4896515 Heat pump, energy recovery method and method of curtailing power for driving compressor in the heat pump |
| 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 |
| 01/16/1990 | US4893748 Heating method and device for vehicles requiring limited power |
| 01/16/1990 | CA1264414A1 Heat transfer compositions containing as stabilizer either a zinc dialkyldithiophosphate or a metal salt of an alkylarylsulfonic acid |
| 01/10/1990 | EP0349647A1 Refrigerant |
| 01/09/1990 | CA1264364A1 Automatic anti-surge control for dual centrifugal compressor system |
| 01/02/1990 | US4890458 Refrigerating circuit for car air conditioning |
| 12/28/1989 | WO1989012752A1 Rotary positive displacement compressor and refrigeration plant |
| 12/27/1989 | EP0348333A1 Quench expansion valve refrigeration circuit |
| 12/26/1989 | US4889474 Air conditioning system with variable capacity compressor |
| 12/20/1989 | EP0259333B1 Refrigeration plant and rotary positive displacement machine |
| 11/29/1989 | EP0343662A2 Rotary displacement compression heat transfer systems incorporating highly fluorinated refrigerant-synthetic oil lubricant compositions |
| 11/23/1989 | EP0342928A2 Cooling fan controlling apparatus for a vehicle with an air conditioner |
| 11/07/1989 | US4878358 Demisting control system of air conditioner for automotive vehicles |
| 10/31/1989 | US4876859 Multi-type air conditioner system with starting control for parallel operated compressors therein |
| 10/04/1989 | CN2045380U Chlorine liquefying device |
| 10/03/1989 | US4870834 Vapor pressure-adjusting valve and refrigeration system using same |
| 10/03/1989 | CA1262057A1 Multi-stage heat pump of the compressor-type operating with a solution |
| 09/26/1989 | US4869074 Regenerative refrigeration cycle apparatus and control method therefor |
| 09/26/1989 | US4869071 Cooling system for an aircraft pod |
| 09/26/1989 | CA1261159A1 Centrifugal heat pump |
| 09/20/1989 | EP0332927A2 Controlling superheat in a refrigeration system |
| 09/19/1989 | US4867649 Refrigerating system |
| 09/19/1989 | US4866947 Method and apparatus for gas conditioning by low-temperature vaporization and compression of refrigerants, specifically as applied to air |
| 09/19/1989 | US4866944 Air conditioner system with function for protecting electric circuit in outdoor unit |
| 09/13/1989 | EP0331760A1 Refrigerant |
| 09/05/1989 | US4862703 Air conditioning apparatus |
| 08/10/1989 | WO1989007127A1 Method and composition for improving the energy efficiency of heat pump systems |
| 08/01/1989 | US4852362 Modular refrigeration system |
| 07/27/1989 | WO1989006776A1 Cooling unit for two-chamber refrigerator |
| 07/25/1989 | US4850200 Refrigerating circuit device for air conditioning apparatus and control method thereof |
| 07/25/1989 | US4850197 Method and apparatus for operating a refrigeration system |
| 07/13/1989 | WO1989006262A1 Working fluid and supersonic compressor for thermally powered heat pumping applications |
| 07/12/1989 | CN1033868A Air-conditioning equipment |
| 07/11/1989 | US4846256 Shell for plate-type apparatus to carry out thermo-dynamic processes based on heat-exchange between flowing fluids |
| 07/11/1989 | US4845956 Regulating device for the superheat temperature of the evaporator of a refrigeration or heat pump installation |
| 06/27/1989 | US4841739 Automotive air-conditioning system and apparatus |
| 06/27/1989 | US4841737 Method for controlling a displacement changing mechanism of a variable displacement refrigerant compressor for a car air-conditioner |
| 06/27/1989 | US4841734 Indicating refrigerant liquid saturation point |
| 06/20/1989 | US4840039 Automatic expansion valve for a refrigeration circuit |
| 06/15/1989 | DE3843742A1 Heat magnet in the form of a machine for generating, transporting and using heat from water vapour |