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 13 - Compression machines, plant, or systems, with reversible cycle
Patents for F25B 13 - Compression machines, plant, or systems, with reversible cycle (6,597)
08/1999
08/17/1999US5937665 Geothermal subcircuit for air conditioning unit
08/17/1999US5937663 Multipurpose heat pump system
08/10/1999US5934094 Vehicle air conditioning system with expansion valve control during high pressure cycle conditions
08/10/1999US5934087 Refrigerating apparatus
08/10/1999CA2192423C Heat pump with liquid refrigerant reservoir
08/03/1999US5931009 Defrosting apparatus of air conditioner and method thereof
07/1999
07/28/1999EP0931989A2 Method and apparatus for controlling supplemental heat in a heat pump system
07/28/1999CN1224144A Method and apparatus for controlling supplemental heat in heat pump system
07/27/1999US5927088 Boosted air source heat pump
07/27/1999US5927087 Refrigerating cycle
07/14/1999CN1222662A Air conditioner control method and apparatus of same
06/1999
06/30/1999CN1043923C Air conditioning apparatus in which multiple-indoor-unit are connected with central unit
06/24/1999WO1999031444A1 Airconditioner using inflammable refrigerant
06/23/1999EP0924480A2 Vapor line pressure control
06/23/1999EP0924479A2 Air conditioner control method and apparatus of the same
06/22/1999CA2122830C Refrigeration working fluid compositions
06/09/1999CN1218893A Multiway conversion air conditioner and its testing method
06/08/1999US5910158 Fuzzy control apparatus and method of branched refrigerant flow and fuel combustion in multi absorption type heat pump
06/03/1999WO1999027314A1 Refrigerator and method of filling it with coolant
06/02/1999EP0919410A2 Vehicle air conditioning system with expansion valve control during high pressure cycle conditions
06/02/1999CA2255181A1 Integrated system for heating, cooling and heat recovery ventilation
05/1999
05/27/1999WO1999026028A1 Refrigerating apparatus
05/26/1999CN1217782A Defrost control
05/26/1999CN1217781A Defrost control for heat pump
05/25/1999US5906107 Air conditioner and control method of the same
05/25/1999US5906104 Combination air conditioning system and water heater
05/18/1999US5904047 Air conditioner control apparatus and method therefor
05/14/1999WO1999023423A1 Heating and cooling system
05/12/1999CN1216607A Refrigeration apparatus and method of manufacturing same
05/11/1999US5901563 Heat exchanger for heat transfer system
05/11/1999CA2056325C Air-conditioning apparatus
05/05/1999CN1216096A Multiple room type air conditioning apparatus
05/05/1999CN1215825A Air conditioner
04/1999
04/21/1999CN1214436A Air conditioner and refrigerant heater outlet temperature control method
04/20/1999US5894735 Heat pump system using energy-supplying mechanism to control refrigerant pressure
04/08/1999WO1999017065A1 Air cycling type air-conditioner
04/07/1999CN1213060A Multi-room air conditioning system
04/06/1999US5890370 Refrigerating system with pressure control valve
04/01/1999WO1999015841A1 Air conditioner, heat exchanging pipe therefor, and outdoor unit
03/1999
03/31/1999EP0904963A2 Air conditioning system for a motor vehicle
03/31/1999CN1212352A Heat pump type air conditioning apparatus
03/23/1999US5885062 Switching valve fluid compressor and heat pump type refrigeration system
03/09/1999US5878810 Air-conditioning apparatus
03/09/1999US5878596 Power controllable type air conditioner
03/03/1999EP0899520A2 Refrigerating cycle apparatus
03/03/1999CN1209534A Evaporation separating of refrigerant of variable displacement heat pump
03/03/1999CN1209533A Variable refrigerant, stage-compression heat-pump
03/02/1999US5875644 Heat exchanger and heat pump circuit
02/1999
02/24/1999EP0898129A2 Vapor separation of variable capacity heat pump refrigerant
02/24/1999EP0898128A2 Variariable refrigerant, intrastage compression heat pump
02/24/1999EP0898127A2 Refrigerating/air-conditioning apparatus
02/24/1999CN1208842A Refrigerating/air-conditioning apparatus
02/23/1999CA2163076C Refrigeration system with heat reclaim and method of operation
02/09/1999US5867997 Heating control apparatus of air conditioner and method thereof
02/03/1999EP0894228A1 Control of defrost in heat pump
02/03/1999EP0894227A1 Defrost control for heat pump
02/02/1999US5865033 Method and device for cooling gases
01/1999
01/13/1999EP0890804A2 Refrigerant cycle system
01/13/1999CN1204753A Air conditioner automatically controlling operation based on supply voltage or supply frequency
01/12/1999CA2041137C Configuration wiring harness for hvac controller
01/06/1999CN1204029A Defrosting apparatus of air conditioner and method thereof
01/06/1999CN1204028A Heating control apparatus of air conditioner and method thereof
12/1998
12/30/1998EP0887599A1 Refrigeration apparatus and method of manufacturing same
12/30/1998EP0861406A4 Thermal energy storage air conditioning system
12/30/1998CN1203657A Thermal energy storage air conditioning system
12/30/1998CN1203351A Refrigerating cycle and dryer for refrigerant thereof
12/29/1998US5852939 Heating and air conditioning device using geothermal heat exchange
12/16/1998EP0883784A1 Boosted air source heat pump
12/15/1998US5848537 Method of improving the capacity/efficiency of a heat pump system
12/09/1998EP0882202A1 Heat pump energy management system
12/08/1998US5845502 Heat pump having improved defrost system
12/02/1998CN1200803A Heat transport device
12/02/1998CN1200802A Heat transport system
12/02/1998CN1200799A Air conditioner
11/1998
11/25/1998CN1199841A Air conditioner coolant circulation route changing apparatus
11/24/1998US5839886 Series connected primary and booster compressors
11/18/1998CN1199454A Heat transfer apparatus
11/10/1998US5832735 Control system for multiple-type air conditioner
11/10/1998US5832733 Power controllable type air conditioner
11/04/1998EP0763183A4 Heating and cooling systems incorporating thermal storage
11/03/1998US5829264 Air conditioner having refrigerant pressure control means and driving control method therefor
11/03/1998US5829262 Capacity control device in refrigerating cycle
10/1998
10/27/1998US5826443 Cold air removal and make-up air system for a market space
10/22/1998WO1998046959A1 Air-conditioning system and method of operating the same
10/22/1998WO1998046957A1 Air-conditioning system and method of operating the same
10/20/1998US5823006 Air conditioner and control apparatus thereof
10/20/1998US5822997 Thermostat setback recovery method and apparatus
10/20/1998US5822996 Vapor separation of variable capacity heat pump refrigerant
10/13/1998US5819551 Air conditioning apparatus for a vehicle
10/08/1998WO1998044304A1 Piping washing method and piping washing apparatus for refrigerating apparatuses
10/08/1998WO1998044301A1 Heat transfer system
09/1998
09/24/1998WO1998041803A1 Air conditioner
09/22/1998CA2098680C Microprocessor-based controller
09/16/1998EP0864070A1 Thermal storage system controller and method
09/15/1998US5806326 For suppressing the deposit of foreign matter in a refrigeration cycle
09/08/1998US5803165 Heat exchanger
09/08/1998US5802864 Heat transfer system
09/02/1998EP0862031A2 Heat pump operating in the heating mode refrigerant pressure control
09/02/1998EP0861406A1 Thermal energy storage air conditioning system
09/01/1998US5799867 Engine-driven heat pump apparatus and method for stable operation of heat pump
1 ... 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 ... 66