| Patents for F25B 29 - Combined heating and refrigeration systems, e.g. operating alternately or simultaneously (6,502) |
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| 10/03/1990 | CN1009858B Air conditioning system for building |
| 10/01/1990 | WO1990012262A1 Double effect air conditioning system |
| 10/01/1990 | CA2049308A1 Double effect air conditioning system |
| 09/04/1990 | US4953361 Process for the operation of a generator absorption heat pump heating installation for space heating, water heating, etc. and generator absorption heat pump heating installation |
| 08/21/1990 | US4949547 Method of and apparatus for air-conditioning individual spaces |
| 08/14/1990 | US4948360 Gas resonance device |
| 08/02/1990 | DE4001525A1 Waermepumpe zur gleichzeitigen lieferung kalter und heisser fluids Waermepumpe for simultaneous delivery of cold and hot fluids |
| 07/24/1990 | US4943003 Control device for heat pump with hot-water supply facility |
| 06/27/1990 | CN1043383A Method and apparatus for operating refrigeration system |
| 06/26/1990 | CA1270710A1 Chemical heat pump utilizing clathrate formation reaction |
| 05/23/1990 | CN1008132B Absorption chilled and hot water apparatus |
| 05/22/1990 | US4926659 Double effect air conditioning system |
| 04/25/1990 | EP0365351A2 Method and apparatus for operating a refrigeration system |
| 04/19/1990 | WO1990004145A1 Normal and reverse rectification composite systems |
| 04/17/1990 | CA1267953A2 Electronic thermostat for heating and cooling system |
| 04/17/1990 | CA1267952A2 Electronic thermostat for heating and cooling system |
| 04/05/1990 | DE3833666A1 Verbundsysteme aus normaler und inverser rektifikation Composite systems of normal and inverse rectification |
| 03/20/1990 | US4909041 Residential heating, cooling and energy management system |
| 03/13/1990 | CA1266571A1 Hot water heating and defrost in a heat pump circuit |
| 03/06/1990 | US4905894 Refrigerant heating type air conditioner |
| 02/14/1990 | EP0354749A2 Air-cooled absorption Air-conditioner |
| 02/07/1990 | CN1006734B Semiconductor thermostatic and temperature changing device |
| 01/23/1990 | US4894998 Absorption system hot and cold water supply apparatus |
| 01/16/1990 | US4893476 Three function heat pump system with one way receiver |
| 12/21/1989 | DE3820811A1 Vehicle air conditioning system (air conditioner) |
| 12/20/1989 | CN2049745U Clock-control differential pressure type auto frost-thawing air-conditioner |
| 11/15/1989 | EP0341241A1 Hypobaric storage of respiring plant matter without supplementary humidification |
| 10/11/1989 | CN1036258A Thermodynamic engineering equipments working in gu's thermodynamic cycle mode |
| 10/11/1989 | CN1036246A Thermodynamic engineering equipments working by use of gu's thermodynamic cycle mode |
| 10/10/1989 | US4872319 Air-cooled absorption type cooling/heating water generating apparatus |
| 09/26/1989 | CA1260110A1 Electronic thermostat for heating and cooling system |
| 09/21/1989 | WO1989008806A1 Apparatus and method for simultaneously heating and cooling separate zones |
| 09/13/1989 | CN2044335U Cooling liquid hot pump self circulation laser pump cavity |
| 08/23/1989 | CN2043330U Monolithic gas stove residual heat refrigerator |
| 08/01/1989 | US4852362 Modular refrigeration system |
| 07/25/1989 | US4850197 Method and apparatus for operating a refrigeration system |
| 07/25/1989 | CA1257777A1 Heat pump systems |
| 07/05/1989 | EP0322476A1 Air-cooled absorbtion-type water cooling and heating apparatus |
| 07/04/1989 | US4843832 Air conditioning system for buildings |
| 05/24/1989 | EP0317048A1 Air-cooled absorption type cooling/heating water generating apparatus |
| 05/24/1989 | EP0316391A1 Process for producing cold by solid-gas reaction. |
| 05/18/1989 | WO1989004443A1 Heat energy storage and transfer apparatus |
| 04/26/1989 | CN2036645U Smallsize quickly electrically heating-and-cooling bottle for vehicle |
| 04/25/1989 | US4823557 Dehumidifier water heater structure and method |
| 03/15/1989 | EP0306587A2 Heat pump system with hot water device |
| 02/23/1989 | WO1989001297A1 Hypobaric storage of respiring plant matter without supplementary humidification |
| 02/23/1989 | DE3726669A1 Equipment for generating cold, vacuum and heat |
| 01/26/1989 | EP0285651A4 Dual solid adsorbent bed heat pump and method of operating such a heat pump. |
| 01/10/1989 | US4796441 Ice making machine |
| 12/20/1988 | US4791790 Air-cooled absorption-type water cooling and heating apparatus |
| 12/01/1988 | WO1988009466A1 Device and process for producing cold and/or heat by solid-gas reaction |
| 11/29/1988 | US4787444 Heating and cooling system |
| 10/12/1988 | EP0285651A1 Dual solid adsorbent bed heat pump and method of operating such a heat pump. |
| 09/28/1988 | EP0283528A1 An ice maker heat pump using water supercooling |
| 09/22/1988 | WO1988007162A1 System for heating and cooling liquids |
| 09/21/1988 | CN88101287A Air conditioning system for building |
| 09/14/1988 | EP0281762A2 Air conditioning system for buildings |
| 09/13/1988 | US4770001 Swimming pool dehumidifier |
| 08/30/1988 | US4766734 Heat pump system with hot water defrost |
| 08/24/1988 | EP0279143A2 Integrated heat pump system |
| 08/24/1988 | CN87101888A Triple integrated heat pump circuit |
| 08/23/1988 | US4765395 Device for the continuous production of heat and cold |
| 07/20/1988 | CN87211680U Infrared automatically controlling cooling-and-warming blower |
| 06/29/1988 | CN87107633A 气体谐振装置 A gas resonance device |
| 06/22/1988 | CN87103432A Integral system for air-conditioning and refrigeration with two refrigerants |
| 06/21/1988 | US4752310 Zeolite |
| 06/16/1988 | WO1988004193A1 Liquid purification system |
| 06/02/1988 | WO1988004017A1 Procedure for drawing heat from freezing liquid |
| 05/18/1988 | EP0267727A2 Gas resonance device |
| 05/11/1988 | CN87207403U Semiconductor electric ice cup |
| 05/10/1988 | US4742693 Absorption refrigeration and heat pump system |
| 05/10/1988 | US4742687 Dual cooling/heating process and composition |
| 05/04/1988 | EP0162095B1 Method and equipment for utilization of the freezing heat of water as a source of heat of a heat pump |
| 04/28/1988 | DE3635353A1 Air-conditioning system on a motor vehicle |
| 03/24/1988 | WO1988002089A1 Dual bed heat pump |
| 03/23/1988 | EP0260333A1 Improvement to a dry cleaning plant |
| 03/16/1988 | CN87105068A Thermodynamic engine of the second kind |
| 03/02/1988 | CN86105016A Air, water-water combined hot screw pump |
| 03/01/1988 | US4727727 Integrated heat pump system |
| 03/01/1988 | US4727726 Refrigeration cycle apparatus |
| 03/01/1988 | CA1233330A1 Method and equipment for utilization of the freezing heat of water as a source of heat of a heat pump |
| 02/17/1988 | CN87208268U Small-scale, effective semieonductor refrigerating and heating storage |
| 02/16/1988 | US4724680 Air conditioning apparatus and control method thereof |
| 02/16/1988 | CA1232770A1 Method of operating a bimodal heat pump and heat pump for operation by this method |
| 02/11/1988 | DE3626586A1 Refrigeration installation with heat-recovery arrangement |
| 02/02/1988 | US4722197 High-efficiency, ambient-assisted, integrated heating and cooling system |
| 02/02/1988 | US4722193 Absorption refrigeration and heat pump system |
| 01/19/1988 | US4719767 Absorption refrigeration and heat pump system |
| 01/12/1988 | US4718249 Apparatus for heating and cooling |
| 01/12/1988 | US4718243 Heat pump system and a method of operating same |
| 01/12/1988 | US4718242 Hydrating agent as working fluid |
| 01/12/1988 | US4718237 Thermal induction machine |
| 12/03/1987 | WO1987007250A1 Freezing process |
| 12/01/1987 | US4709558 Adsorption refrigerating apparatus |
| 11/25/1987 | CN87206118U Automotic energy-saving protector for refrigerator |
| 11/17/1987 | US4706469 Refrigerant flow control system for use with refrigerator |
| 10/27/1987 | US4702085 Method and apparatus for converting low temperature heat into useful heat |
| 10/20/1987 | US4701199 Chemical heat pump system |
| 10/07/1987 | EP0240441A2 Three function heat pump system and method |
| 10/07/1987 | EP0239837A2 Method of recuperating the condensation heat of a refrigeration system, and refrigeration system for carrying out the method |