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 29 - Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
Patents for F25B 29 - Combined heating and refrigeration systems, e.g. operating alternately or simultaneously (6,502)
05/1985
05/28/1985US4519441 Heat conversion system
05/21/1985US4517810 Environmental control system
05/21/1985CA1187302A1 Method of operating a heat augmented heat pump system
05/21/1985CA1187300A1 Heat exchanger coil
05/21/1985CA1187299A1 Heat augmented heat-exchanger
04/1985
04/30/1985US4513580 Combined refrigeration and heating circuits
04/24/1985EP0057694B1 Open cycle thermal boosting system
04/23/1985US4512394 Variable effect absorption machine and process
04/16/1985US4510762 Heat recovery method
04/09/1985US4509337 Solar energy refrigeration device
04/02/1985US4507938 System for air-conditioning and hot water supplying
03/1985
03/26/1985US4506521 Cooling and heating device
03/26/1985US4506520 Vapor generating and recovery apparatus
03/26/1985US4506515 Refrigerating-cycle heat pump purifying system for condensable gaseous mixtures of dry-cleaning plants
03/12/1985US4503682 Low temperature engine system
03/05/1985US4502292 Climatic control system
02/1985
02/19/1985CA1182642A1 Air conditioning system and method
02/12/1985US4498307 Absorption cold and warm water system utilizing solar heat
01/1985
01/23/1985EP0132000A1 Method of operating a bimodal heat pump and heat pump for operation by this method
01/08/1985US4492092 Combination refrigerant circuit and hot water preheater
12/1984
12/27/1984EP0129272A1 Device for carrying out a substance exchange process
12/25/1984US4489553 Intrinsically irreversible heat engine
12/19/1984EP0128614A1 Sorption heat pump construction
12/11/1984US4487032 Energy conservation for household refrigerators and water heaters
12/11/1984US4487027 Hyperabsorption space conditioning process and apparatus
12/11/1984CA1179160A1 Control system for duo heat pump
11/1984
11/27/1984US4484617 Method of using and storing energy from the environment
11/13/1984US4481790 Cooling system
11/07/1984EP0124455A2 Thermodynamic process and installation for cooling or heating by adsorption onto a solid adsorbant
10/1984
10/30/1984US4479364 Sorption units and methods for their operation
10/17/1984EP0122017A2 Low temperature engine system
10/16/1984US4476694 Absorption cooling and heating system
10/09/1984US4475361 Multi-effect heat-pump for heating and cooling
10/02/1984US4474031 Heatpump
09/1984
09/11/1984US4470269 Absorption refrigeration system utilizing low temperature heat source
08/1984
08/29/1984EP0116803A1 Method for the production of cold and/or heat using an absorption cycle with at least two absorption stages
08/21/1984US4466253 Flow control at flash tank of open cycle vapor compression heat pumps
08/08/1984EP0115014A2 Method of saving energy while controlling the air temperature in buildings, and building therefor
08/07/1984US4463575 Vapor generating and recovery apparatus including a refrigerant system with refrigerant heat removal means
08/07/1984CA1172039A1 Environmental control system
07/1984
07/17/1984CA1170852A1 Acoustical heat pumping engine
07/10/1984US4458499 Absorption heat pump system
07/03/1984US4457358 Heating and cooling system
07/03/1984US4457136 Metal hydride reactor
06/1984
06/26/1984CA1169668A1 Precool/subcool system and condenser therefor
06/19/1984US4454720 Heat pump
06/19/1984CA1169260A1 Gravity defrost
06/05/1984US4452050 Energy efficient water heating device and system
05/1984
05/22/1984US4449376 Indoor unit for electric heat pump
05/15/1984US4448347 Heat pump system using wastewater heat
05/15/1984US4448244 Heat-transmitting device for heat pumps
05/15/1984US4448040 Absorption type heat pump system
05/15/1984US4448033 Thermostat self-test apparatus and method
05/15/1984US4448031 Process for cold and/or heat production with use of carbon dioxide and a condensable fluid
05/15/1984US4448030 Combined staged air conditioner and heat store
05/09/1984EP0107755A1 Direct evaporation energy accumulator
05/02/1984EP0107495A2 Combined refrigeration and heating circuits
05/01/1984US4445639 Heat pump systems for residential use
04/1984
04/24/1984US4444024 Dual open cycle heat pump and engine
04/24/1984US4444021 Heat pump systems for residential use
04/24/1984US4444020 Heat transformation process and apparatus for air-conditioning in rooms for a great number of living creatures, particularly building for animal breeding
04/24/1984US4444018 Heat pump systems for residential use
04/18/1984EP0105603A2 A tandem heat pump
04/17/1984US4442677 Variable effect absorption machine and process
04/10/1984US4441484 Solar collector
03/1984
03/27/1984US4438881 Solar assisted heat pump heating system
03/20/1984US4437321 Absorption cooling and heating system
03/20/1984US4437316 Method and apparatus for recovering waste energy
03/07/1984EP0102235A2 Heat-generating device
02/1984
02/28/1984US4433554 Process for producing cold and/or heat by use of an absorption cycle with carbon dioxide as working fluid
02/21/1984CA1162451A1 Method for utilizing and storing environmental energy
02/07/1984US4429684 Chemical heat pump
02/07/1984US4429547 Arrangement in a heat pump plant
01/1984
01/24/1984CA1160853A1 Method and apparatus for recovering waste energy
01/17/1984US4425903 Solar collector
01/10/1984US4424686 Floor mounted air conditioner
01/10/1984US4424667 Apparatus for increasing the efficiency of a gas turbine engine
12/1983
12/13/1983US4420373 Energy conversion method and system
12/13/1983US4419864 Air conditioning system and method
12/06/1983US4418545 Reabsorption method for temperature transformation of heat and apparatus therefore
11/1983
11/15/1983US4415023 Heat exchanger housing with air deflecting baffle and hinge door
11/15/1983US4414818 Environmental control system
11/08/1983US4413480 Hyperabsorption space conditioning process and apparatus
11/08/1983US4413479 Process for producing cold and/or heat by means of an absorption cycle
11/08/1983US4413478 Air conditioning system and method
10/1983
10/25/1983US4411140 Absorption type cooling and heating system
10/18/1983US4409794 Apparatus for adjusting trace water content of rice-koji, wheat-koji, wheat bran-koji, steamed rice, steeped rice and the like
10/05/1983EP0090759A2 Thermostat self-test apparatus
10/04/1983US4407142 Heat recovery
09/1983
09/27/1983US4406137 Heat-transmitting device for heat pumps
09/14/1983EP0088468A1 Heat pump
09/07/1983EP0087540A2 Method of producing cold and/or heat by the use of carbon dioxide and a condensable fluid
09/06/1983US4402193 Dual open cycle heat pump and engine
09/06/1983US4402188 Nested thermal reservoirs with heat pumping therebetween
08/1983
08/24/1983EP0086383A2 Sorption apparatuses and method of operating the same
08/23/1983US4399664 Heat pump water heater circuit
08/18/1983WO1983002820A1 Heating or cooling device
08/16/1983US4398398 Acoustical heat pumping engine
08/16/1983US4398397 Self-balancing two stage heat recovery system
08/10/1983EP0085411A2 Heating, respectively cooling, device
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