Heating systems – Automatic control – Heat source is a reverse cycle refrigerating system or heat...
Patent
1997-10-01
1999-10-26
Bennett, Henry
Heating systems
Automatic control
Heat source is a reverse cycle refrigerating system or heat...
237814, G05D 2300
Patent
active
059712899
ABSTRACT:
An automotive air conditioning apparatus includes a forced water supply system 12 and a heat pump system 14. The temperature of the vehicle interior is controlled by the heat pump system under ordinary atmospheric temperature conditions. However, at very low temperatures, for example, at the temperature of -5.degree. C. or lower, the temperature of the vehicle interior is controlled by the forced water supply system. According to this air conditioning arrangement, it is possible to achieve energy-efficient air conditioning even under very low temperature conditions and to prevent any compressor damage due to the liquefaction of the refrigerant.
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Fukumoto Minoru
Kurahashi Yasufumi
Bennett Henry
Boles Derek S.
Matsushita Electric - Industrial Co., Ltd.
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