About 34 results
https://drivepatents.com/patents/1083734 · 22 Sep 2004
The installation has a super critical refrigerant circuit (10) including gas cooler cooling a gaseous fluid compressed at pressure P1 by a compressor. A detent unit reduces the fluid pressure to obtain a liquidized state that is passed to an evaporator to ...
https://drivepatents.com/patents/1084108 · 15 Sep 2004
An air-conditioning system has a refrigerant circuit (30). The circuit includes a condenser (31), an expansion valve (32), an evaporator (33) and a variable displacement compressor. The system has a pressure difference detector (36). The pressure differenc...
https://drivepatents.com/patents/1085107 · 4 Aug 2004
An air conditioning apparatus includes a refrigerating cycle supplying the supercritical refrigerant pressurized by the variable displacement compressor (16) to the outdoor heat exchanger (3), the expansion valve (4) and the indoor heat exchanger (5), in s...
https://drivepatents.com/patents/1087169 · 19 May 2004
An improved compressor capacity control method selectively overrides a normal capacity control during periods of vehicle acceleration to reduce engine exhaust emissions. The capacity override is invoked when the rate of engine throttle movement exceeds a p...
Cooling fan control method for minimizing the power consumption of a vehicle air conditioning system
https://drivepatents.com/patents/1087670 · 28 Apr 2004
An improved control method for a vehicle air conditioning system (10) including a refrigerant compressor (12) and a condenser cooling fan (32) adjusts the power consumption of the condenser cooling fan (32) in a manner to minimize the combined power consum...
https://drivepatents.com/patents/1089811 · 4 Feb 2004
An air conditioning system for a vehicle having a first drive source (2), includes a compressor (4) and a refrigeration circuit (1). The compressor includes a second drive source (5) and is driven by the first drive source or the second drive source, or a ...
https://drivepatents.com/patents/1090397 · 14 Jan 2004
In a refrigeration cycle electric signals for a capacity control valve 5 of a variable displacement compressor 1 and an electronic expansion valve 3 are directly measured. The differential pressure across the refrigeration cycle and the refrigerant flow ra...
https://drivepatents.com/patents/1091734 · 19 Nov 2003
An air conditioner for use in vehicles includes a compressor (11) that is connected to an engine (1) for driving a vehicle and operated by a driving force provided by the engine (1) during operation of the engine (1). Connection between the engine (1) and ...
https://drivepatents.com/patents/1093075 · 24 Sep 2003
An automotive air conditioning system comprising a main heating unit 4 for heating air passing through an air conditioning duct 2 with cooling water of an engine E and a refrigeration cycle device 20 having a first refrigerant circulating circuit 21 which ...
https://drivepatents.com/patents/1095733 · 28 May 2003
An air conditioner for air conditioning the interior of a compartment includes a compressor (C) and an electric motor (84). The compressor (C) compresses refrigerant gas and changes the displacement. The electric motor (84) drives the compressor (C). A mot...