Heat exchange – With vehicle feature – Heating and cooling
Patent
1994-12-27
1997-06-24
Look, Edward K.
Heat exchange
With vehicle feature
Heating and cooling
622386, B60H 300
Patent
active
056410166
ABSTRACT:
An air-conditioning apparatus for vehicle use which can obtain sufficient heater capacity even in a cold-climate region, can utilize an existing heater unit, can combine a combustion type heater with a simple assembly operation, and can utilize exhaust heat of a motor for travel use of an automobile for heating a passenger compartment. The air-conditioning apparatus includes a refrigeration cycle connecting a refrigerant compressor, a refrigerant/water heat exchanger, a first pressure-reducer, and an exterior heat exchanger in an annular configuration. Further, a hot-water cycle connects the refrigerant/water heat exchanger, a hot-water heater core, an exhaust-heat cooler, and a water pump in an annular configuration and connects a combustion type heater in parallel with the refrigerant/water heat exchanger. Accordingly, during heat-pump hot-water heating, hot water, with a temperature raised by refrigerant condensation by the refrigerant/water heat exchanger, circulates in the hot-water heater core so as to obtain a required heater capacity. During combustion heater hot-water heating, hot water, with a temperature raised by combustion fuel in the combustion type heater, circulates in the hot-water heater core so as to obtain sufficient heating capacity even in a cold-climate region.
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Hotta Naoto
Isaji Akira
Kondo Yasuo
Takeo Yuji
Tsuchiya Shizuo
Look Edward K.
Nippondenso Co. Ltd.
Sgantzos Mark
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