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)
06/1984
06/19/1984US4454725 Method and apparatus for integrating a supplemental heat source with staged compressors in a heat pump
05/1984
05/22/1984US4449377 Thermosyphon coil arrangement for heat pump outdoor unit
05/22/1984CA1167654A1 Heat pump enclosure
05/15/1984US4448211 Three-way valve
05/08/1984CA1166860A1 Refrigeration system modulating means
05/01/1984US4445343 Sonic restrictor means for a heat pump system
04/1984
04/10/1984US4441901 Heat pump type airconditioner
04/10/1984US4441335 Reversible refrigeration system
04/10/1984US4441331 Airconditioner with refrigerant temperature responsive controller for compressor bypass valve
03/1984
03/27/1984US4438881 Solar assisted heat pump heating system
02/1984
02/21/1984US4432215 Pressure differential automatic transfer type three-way valves
02/14/1984US4430864 Hybrid vapor compression and desiccant air conditioning system
01/1984
01/25/1984EP0099312A1 Energy saving device for space air conditioning
01/24/1984CA1160854A1 Device for recovery of heat
01/18/1984EP0098788A2 Combined refrigerant circuit and hot water preheater, air conditioning system using same and section of such system including the combination
01/10/1984CA1160067A1 Heating system
01/03/1984US4423603 Heat pump type refrigeration system
12/1983
12/27/1983CA1159269A1 Apparatus for generating heating and cooling and storing and using such heating and cooling, and storing and using solar energy
12/20/1983US4420947 Heat pump air conditioning system
12/13/1983US4419866 Transport refrigeration system control
12/07/1983EP0095704A2 Air conditioning installation for motor vehicles, particularly for passenger cars
10/1983
10/18/1983US4409796 Reversible cycle heating and cooling system
10/04/1983US4407137 Fast defrost heat exchanger
09/1983
09/28/1983EP0089788A2 Heat pump switchover valve
09/27/1983US4406306 Heat pump switchover valve
09/27/1983US4406133 Control and method for defrosting a heat pump outdoor heat exchanger
09/15/1983WO1983003133A1 Reversible cycle heating and cooling system
09/06/1983US4402190 Apparatus and method for heating and chilling concrete batch water
08/1983
08/23/1983US4399664 Heat pump water heater circuit
08/16/1983CA1152185A1 Method and apparatus for transport refrigeration system control
08/02/1983US4395886 Refrigerant charge monitor and method for transport refrigeration system
07/1983
07/26/1983CA1150797A1 Heat pump system compressor start fault detector
06/1983
06/28/1983US4389851 Method for defrosting a heat exchanger of a refrigeration circuit
06/28/1983CA1149044A1 Microcomputer control for supplemental heating with night-set back
06/21/1983USRE31281 Heat pump system
06/14/1983CA1147975A1 Self-contained heating and cooling apparatus
05/1983
05/31/1983CA1147440A1 Current monitoring control for electrically powered devices
05/31/1983CA1147155A1 Method and apparatus for using solar energy to augment a refrigerant heating and cooling system
05/24/1983US4384608 Reverse cycle air conditioner system
05/17/1983CA1146370A1 Reversible compressor heat pump
05/10/1983US4382370 Refrigerating system using scroll type compressor
05/10/1983US4382369 Air conditioning apparatus
04/1983
04/27/1983EP0077414A1 Air temperature conditioning system
04/12/1983CA1144384A1 Heating and cooling system
04/05/1983US4378679 Air conditioning apparatus
03/1983
03/08/1983US4375831 Geothermal storage heating and cooling system
03/08/1983US4375753 Air conditioner
03/08/1983US4375752 Air conditioning apparatus
02/1983
02/15/1983US4373354 Combination discharge gas muffler and water heater
02/15/1983US4373350 Heat pump control/defrost circuit
02/08/1983CA1141010A1 Microcomputer control for supplemental heating in a heat pump
01/1983
01/19/1983EP0069996A1 Heat pump air conditioning system
01/11/1983US4367638 Reversible compressor heat pump
01/11/1983CA1139361A1 Control system for polyphase loads
12/1982
12/28/1982US4365482 Device at heating or cooling unit
12/21/1982US4364237 Microcomputer control for inverter-driven heat pump
12/14/1982CA1137323A1 Series compressor refrigeration circuit with liquid quench and compressor by-pass
12/14/1982CA1137322A2 Refrigeration circuit heat reclaim method and apparatus
12/07/1982US4362030 Refrigeration circuit
11/1982
11/23/1982US4359877 Heat pump coil circuit
11/23/1982CA1135968A1 Apparatus and method for defrosting a heat exchanger of a refrigeration circuit
10/1982
10/26/1982CA1134159A1 Refrigeration unit with water cooled condenser
10/26/1982CA1134157A1 Means and method for independently controlling vapor compression cycle device evaporator superheat and thermal transfer capacity
10/13/1982EP0062043A1 Method and machine for obtaining a quasi-isothermal transformation in gas compression or expansion processes.
10/12/1982US4353409 Apparatus and method for controlling a variable air volume temperature conditioning system
10/12/1982US4353221 Transport refrigeration system
10/05/1982US4352272 Heat pump system
09/1982
09/28/1982US4351161 Method and apparatus for using solar energy to augment a refrigerant heating and cooling system
09/07/1982US4347711 Heat-actuated space conditioning unit with bottoming cycle
08/1982
08/17/1982US4344297 Refrigeration system
08/10/1982US4343157 Refrigerator
07/1982
07/13/1982US4338791 Microcomputer control for heat pump system
07/13/1982US4338790 Control and method for defrosting a heat pump outdoor heat exchanger
06/1982
06/22/1982US4335580 Refrigeration unit with water cooled condenser
06/22/1982CA1126364A1 Heat pump compressor crankcase low differential temperature detection and control system
06/15/1982CA1125888A1 Heat pump wrong operational mode detector and control system
06/09/1982EP0053152A1 Plant for the transformation and transport of thermal energy, particularly for driving heat pumps
06/08/1982US4333317 Superheat controller
06/08/1982US4333316 Automatic control apparatus for a heat pump system
06/01/1982US4332137 Heat exchange apparatus and method having two refrigeration circuits
05/1982
05/18/1982US4329855 Heat pump
05/11/1982CA1123217A1 Heat pump employing optimal refrigerant compressor for low pressure ratio applications
05/04/1982US4327561 High coefficient of performance heat pump
05/04/1982US4327560 Earth-embedded, temperature-stabilized heat exchanger
05/04/1982US4327558 Unloadable transport refrigeration unit control
05/04/1982CA1122806A1 Compressor heat pump system with maximum and minimum evaporator .delta.t control
04/1982
04/27/1982US4326868 Refrigeration system utilizing a gaseous refrigerant bypass
04/27/1982US4326391 Rankine-cycle-engine-driven cooling-and-heating system
04/20/1982US4325224 Method and apparatus for transport refrigeration system control
04/15/1982WO1982001220A1 Method and machine for obtaining a quasi-isothermal transformation in gas compression or expansion processes
04/13/1982US4324105 Series compressor refrigeration circuit with liquid quench and compressor by-pass
04/06/1982CA1121170A1 Expansion device with adjustable refrigerant throttling
04/06/1982CA1121167A1 Heat exchanger apparatus and method having two refrigeration circuits
03/1982
03/30/1982US4321801 Jet operated heat pump
03/23/1982CA1120359A1 Dual cycle heat pipe-method and apparatus
03/16/1982US4320000 Bidirectional flow filter-drier
03/09/1982US4318809 Bi-directional filter/drier having magnetically biased flapper valves
03/03/1982EP0046585A1 Refrigerator with a clearance seal compressor
02/1982
02/23/1982CA1118870A1 Heat pump control system
02/03/1982EP0045179A2 Heat actuated space conditioning unit with bottoming cycle
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