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 30 - Heat pumps
Patents for F25B 30 - Heat pumps (6,899)
10/1980
10/07/1980US4226604 Method and apparatus for preventing overheating of the superheated vapors in a solar heating system using a refrigerant
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
09/30/1980US4224805 Subterranean heat exchanger for refrigeration air conditioning equipment
09/30/1980US4224804 Hot-water supply for submarines and the like
09/30/1980CA1086518A1 Reversible-cycle closed-circuit refrigeration systems
09/30/1980CA1086517A1 Heat pump
08/1980
08/26/1980US4218891 Cooling and heat pump systems and methods
08/12/1980US4216660 Heat generator
08/05/1980CA1082935A1 Heating and cooling system and method
07/1980
07/22/1980CA1081978A1 Method and device for improving the efficiency of a heat generator
07/01/1980CA1080564A1 Heating system
06/1980
06/17/1980US4207752 Method and apparatus for recovering heat from waste water
06/17/1980US4207751 Sorption heat pump
06/03/1980US4206018 Electrodeposition
06/03/1980US4205532 Apparatus for and method of transferring heat
05/1980
05/14/1980EP0010551A1 Absorption heat pump system
05/06/1980US4201058 Method and apparatus for generating steam
04/1980
04/29/1980US4199952 Modular solar powered heat pump
04/29/1980CA1076557A1 Method and apparatus for controlling heat pumps
04/29/1980CA1076355A1 Air conditioning apparatus including a heat pump
04/16/1980EP0009786A1 Heating system comprising a heating pump
04/15/1980US4197719 Tri-level multi-cylinder reciprocating compressor heat pump system
04/15/1980US4197715 Heat pump
04/08/1980US4196595 Integrated thermal solar heat pump system
03/1980
03/25/1980US4194368 Combination split system air conditioner and compression cycle domestic hot water heating apparatus
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
03/18/1980US4193268 Evaporation device and method with controlled refrigerant expansion and storage
03/11/1980US4192146 Process for the recovery of energy and in particular for the recovery of heat on the heat pump principle
02/1980
02/12/1980US4187899 Method and apparatus for exchanging heat between fluids
02/12/1980US4187690 Ice-maker heat pump
02/12/1980US4187688 Solar powered intermittent cycle heat pump
02/05/1980CA1070968A1 Solar augmented heat pump system with automatic staging reciprocating compressor
01/1980
01/29/1980US4185465 Multi-step regenerated organic fluid helical screw expander hermetic induction generator system
12/1979
12/25/1979US4179898 Vapor compression cycle device with multi-component working fluid mixture and method of modulating its capacity
12/18/1979CA1068380A1 Heat pump system with multi-stage centrifugal compressors
12/12/1979EP0005825A1 Energy conversion method and system
09/1979
09/18/1979US4167965 Integral water-refrigerant-air heat exchange system
09/11/1979US4167101 Absorption process for heat conversion
08/1979
08/28/1979US4165619 Method of controlling a heat pump, and a heat pump device adapted to operate in accordance with said method
08/23/1979WO1979000571A1 Method and apparatus for heating by heat pumping
08/22/1979EP0003723A2 Method and apparatus for heating by heat pumping
08/21/1979US4165037 Apparatus and method for combined solar and heat pump heating and cooling system
08/21/1979US4164975 Heat exchanger holder
08/14/1979CA1060336A1 Method for producing heat by absorption
08/08/1979EP0003293A1 Method of heating with an absorption type heating pump installation
08/07/1979US4163369 Air-to-air heat pump
07/1979
07/31/1979CA1059329A1 Two stage compressor heating
07/11/1979EP0002839A1 Room temperature controlling method and building heated according to this method
07/10/1979CA1057966A1 Air source heat pump with multiple slide rotary screw compressor/expander
05/1979
05/16/1979EP0001901A1 Air conditioning units with reversible cycle closed-circuit compression refrigeration systems
05/16/1979EP0001858A1 Heating method and bi-modal heating system for heating of buildings
05/08/1979US4152904 Absorption heating-cooling system
05/08/1979US4152901 Method and apparatus for transferring energy in an absorption heating and cooling system
04/1979
04/18/1979EP0001455A1 Heat pump for central heating with a circulating heat-transporting liquid
04/10/1979US4148436 Solar augmented heat pump system with automatic staging reciprocating compressor
04/04/1979EP0001296A1 Method and apparatus for the utilization of heat, especially solar energy, for the heating of rooms
04/04/1979EP0001272A1 Heating installation comprising a heat pump
03/1979
03/27/1979US4146013 Solar-exothermic solution heat pump
03/13/1979US4143707 Air conditioning apparatus including a heat pump
03/13/1979US4143522 Windmill operated system
03/06/1979US4142678 Combined heat pump system and ice making system
03/06/1979US4142379 Waste energy recovery system
02/1979
02/13/1979US4138859 Split heat pump outdoor fan arrangement
02/13/1979US4138855 Transferring heat from relatively cold to relatively hot locations
01/1979
01/10/1979EP0000205A1 Heat pump apparatus and method for increasing the heat content of a fluid and thereafter transferring the heat content to an ambient atmosphere
01/10/1979EP0000192A1 Heat recovery device for a dishwasher
01/10/1979EP0000135A1 Plant for the centralised generation of thermal energy
12/1978
12/20/1978EP0000001A1 Thermal heat pump
12/05/1978CA1043583A1 Heat pumps
11/1978
11/28/1978US4127364 Heat pump unit
11/28/1978US4127010 Heat activated heat pump method and apparatus
11/28/1978CA1043115A1 Heat pump system
11/07/1978US4124177 Heating system
10/1978
10/17/1978CA1040445A1 Heat pump with high efficiency reversible helical screw rotary compressor
10/03/1978US4117696 Heat pump
09/1978
09/19/1978US4114380 Traveling wave heat engine
09/19/1978CA1038712A1 Heating system using stored solar energy
08/1978
08/15/1978US4106307 Reverse-flow air conditioner
08/08/1978US4105064 Two stage compressor heating
07/1978
07/25/1978US4102388 Heat recovery process
07/18/1978US4100763 Multi-source heat pump HVAC system
06/1978
06/13/1978US4094355 Heat recovery process
05/1978
05/30/1978US4091636 Heat pump system
05/09/1978US4087974 Method and apparatus for generating steam
04/1978
04/25/1978US4086072 Air source heat pump with multiple slide rotary screw compressor/expander
03/1978
03/21/1978US4079596 Heat engines and heat pumps
03/07/1978US4077390 Reusable heat pack containing supercooled solution and means for activating same
01/1978
01/31/1978US4070870 Heat pump assisted solar powered absorption system
12/1977
12/13/1977US4062197 Absorption heating-cooling system
11/1977
11/22/1977US4058988 Heat pump system with high efficiency reversible helical screw rotary compressor
11/01/1977US4055965 Heat pump installation
09/1977
09/20/1977US4049407 Solar assisted heat pump system
07/1977
07/05/1977US4033738 Heat pump system with multi-stage centrifugal compressors
11/1976
11/02/1976US3989183 Method and apparatus employing a heat pump for heating fluids in different flow circuits
06/1976
06/29/1976US3965694 Method and device for thermally air-conditioning a room, a vat or the like
06/01/1976US3959986 Heat-pump system for hot-water room-heating
05/1976
05/04/1976US3953973 Heat engine and heat pump utilizing a working medium undergoing solidification and melting operations
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