Patents
Sitemap › F25 - Refrigeration or cooling; Combined heating and refrigeration systems; Heat pump systems; Manufacture or storage of ice; Liquefaction or solidification of gases › F25B - Refrigeration machines, plants, or systems; Combined heating and refrigeration systems; Heat pump systems › F25B 27 - Machines, plant, or systems, using particular sources of energy
Patents for F25B 27 - Machines, plant, or systems, using particular sources of energy (5,773)
01/1982
01/06/1982EP0043067A2 Heating and power unit
01/05/1982US4308723 Heat pump employing optimal refrigerant compressor for low pressure ratio applications
12/1981
12/29/1981US4307575 Automotive absorption air conditioner utilizing solar and motor waste heat
12/10/1981EP0030553A4 Heat pump including compressor having low pressure ratio application.
12/09/1981EP0041244A2 Apparatuses for the energy-saving recovery of useful ambient heat or of waste heat
12/08/1981US4304104 Pitot heat pump
12/08/1981US4304103 Heat pump operated by wind or other power means
12/01/1981US4302942 Solar boosted heat pump
11/1981
11/04/1981EP0038864A1 Cold-storage box
11/03/1981CA1111645A1 Split system air conditioner adapted to receive a water preheater
10/1981
10/28/1981EP0038769A2 Method and devices for letting a transfer fluid circulate in a closed circuit comprising a heat source and a cold source
10/15/1981WO1981002923A1 Refrigeration method and apparatus using heat
10/06/1981US4293092 Heating system with heat pump and auxiliary heater
10/06/1981US4292814 Heat pump
09/1981
09/15/1981US4288989 Method and apparatus for obtaining mechanical energy from low temperature heat sources
09/02/1981EP0034699A1 Heat pump arrangement
08/1981
08/25/1981US4285211 Compressor-assisted absorption refrigeration system
08/25/1981US4285209 Absorption heat pump installation
08/19/1981EP0033849A2 Method for the recuperation of thermal energy contained in the vapours of multi-step evaporators used in thermal mass-transfer processes, and device for carrying out this method
08/04/1981US4281969 Thermal pumping device
08/04/1981US4281515 Solar powered cooling device
06/1981
06/30/1981US4276440 Thermoelectric generator operating with a cooling device for converting solar energy into electric energy, and system for the use thereof
06/24/1981EP0030553A1 Heat pump including compressor having low pressure ratio application
06/16/1981US4273184 Solar heat utilized air-conditioning system
06/16/1981US4272963 Cyclic energy transformation apparatus
06/09/1981US4272268 Chemical heat pump
06/09/1981US4271679 Heating installation
06/09/1981US4271677 Self-contained roof-mounted vehicle air-conditioning system
06/02/1981US4270365 Refrigeration apparatus
05/1981
05/27/1981EP0029141A2 Heat pump
05/26/1981US4269263 Cooling and heating system utilizing solar heat
05/12/1981US4266404 Method and apparatus for conserving waste energy
04/1981
04/30/1981WO1981001193A1 Sorption refrigerating apparatus,operating process and utilisation thereof
04/08/1981EP0026257A2 Plant comprising an absorption heat pump
04/08/1981EP0026172A1 Process for the purification of a diesel engine exhaust gas and for the utilization of its heat, engine used for driving a heat pump heating device
04/02/1981WO1981000904A1 Refrigeration process and device
04/01/1981EP0025986A1 Method and apparatus for the utilisation of heat taken up at low temperature
02/1981
02/24/1981US4251997 Control of absorption systems energized from plural storage tanks maintained at different temperatures
02/17/1981US4250715 Heat transfer systems
02/10/1981US4249378 Thermally actuated heat pump
02/03/1981US4248049 Temperature conditioning system suitable for use with a solar energy collection and storage apparatus or a low temperature energy source
01/1981
01/27/1981US4246956 Control scheme for a solar assisted heat pump
01/13/1981CA1093302A1 Heating and cooling system
12/1980
12/30/1980US4241783 Heating and cooling system
12/30/1980CA1092382A1 Control scheme for a solar assisted heat pump
12/24/1980WO1980002870A1 Heat pump including compressor having low pressure ratio applications
12/24/1980WO1980002869A1 Circulation pump for liquid and/or gas medium
12/10/1980EP0020146A1 Combined engine cooling system and waste-heat driven heat pump
12/09/1980US4237689 Internal combustion engines
11/1980
11/26/1980EP0019124A1 Heat pump and process for operating the same
11/25/1980US4235080 Refrigeration and space cooling unit
11/25/1980US4235079 Vapor compression refrigeration and heat pump apparatus
11/04/1980US4231772 Solar powered heat pump construction
11/04/1980CA1088729A1 Method and apparatus for transferring energy in an absorption system
10/1980
10/16/1980WO1980002178A1 Process for the purification of a diesel engine exhaust gas and for the utilization of its heat,engine used for driving a heat pump heating device
10/14/1980CA1087410A1 Energy recovery system
10/07/1980US4226091 Heat pump containing a piston compressor and driven by a piston engine
10/01/1980EP0016211A1 Heat collecting plant usable for heating by means of a heat pump
09/1980
09/30/1980US4224803 Chemical heat pump
09/23/1980US4223535 Absorption solar powered air conditioning system with storage capacity
09/16/1980US4222244 Air conditioning apparatus utilizing solar energy and method
09/02/1980US4220197 High speed variable delivery helical screw compressor/expander automotive air conditioning and waste heat energy _recovery system
08/1980
08/26/1980US4218891 Cooling and heat pump systems and methods
08/20/1980EP0014630A1 Thermodynamic engine and its use as a motor or as a refrigerating machine
08/06/1980EP0013669A1 Heating device
07/1980
07/22/1980US4214170 Power generation-refrigeration system
07/22/1980US4213305 Solar powered cooling apparatus
07/01/1980US4209998 Air source heat pump with displacement doubling through multiple slide rotary screw compressor/expander unit
07/01/1980CA1080567A1 Storage for heat and cold
06/1980
06/17/1980US4207752 Method and apparatus for recovering heat from waste water
06/17/1980US4207748 Heat exchange device and method
06/17/1980US4207744 Solar refrigeration system
06/10/1980US4206745 Solar operated chemical heat pump
06/03/1980US4205529 LiCl Dehumidifier LiBr absorption chiller hybrid air conditioning system with energy recovery
05/1980
05/14/1980EP0010551A1 Absorption heat pump system
04/1980
04/30/1980EP0010210A1 Power generation-refrigeration system and method of operating the same
04/29/1980US4199952 Modular solar powered heat pump
04/29/1980CA1076356A2 Air conditioning apparatus utilizing solar energy and method
04/08/1980US4196773 Heating and air cooling system employing a gas turbine
03/1980
03/20/1980WO1980000490A1 Heat collecting plant usable for heating by means of a heat pump
03/19/1980EP0008680A2 Method of producing thermal energy by the combination of a heat engine with a heat pump
03/11/1980US4192146 Process for the recovery of energy and in particular for the recovery of heat on the heat pump principle
02/1980
02/12/1980US4187694 Binary working fluid air conditioning system
02/12/1980US4187688 Solar powered intermittent cycle heat pump
02/12/1980US4187687 System for utilizing solar energy and ambient air in air conditioners during the heating mode
02/12/1980CA1071420A1 Automotive heat pump
02/05/1980CA1070968A1 Solar augmented heat pump system with automatic staging reciprocating compressor
01/1980
01/22/1980US4184338 Heat energized vapor adsorbent pump
12/1979
12/25/1979US4180209 Solar energy operated system and method
12/25/1979US4179895 Cooling system using low potential and high potential energies
12/18/1979US4178989 Solar heating and cooling system
12/18/1979US4178772 Heat pump system
12/18/1979CA1068119A1 Process and equipment for transforming heat at a relatively low temperature into power or energy
12/11/1979US4177651 Apparatus and method of heating and cooling
11/1979
11/13/1979US4173994 Solar energy heating and cooling apparatus and method
11/06/1979US4173125 Energy recovery system
11/01/1979WO1979000874A1 Heating device
10/1979
10/30/1979US4172493 Temperature control system
10/23/1979US4171620 Cooling method and system
10/23/1979US4171619 Compressor assisted absorption refrigeration system
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