Outdoor unit of an air conditioner of an engine heat pump type

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4614090
SERIAL NO

06823043

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An outdoor unit of an air conditioner of an engine heat pump type comprises an engine; first and second compressors driven by the engine and having substantially same capacity and heat exchangers for the compressors, said heat exchanger for the first compressor being adapted to utilize an atmosphere as a heat source in a heating operation, said heat exchanger for the second compressor being adapted to utilize a waste heat of the engine as a heat source in the heating operation, a rotation speed of the second compressor being set smaller than that of the first compressor in the heating operation, only the second compressor is adapted to operate in a defrosting operation for the heating operation while utilizing the waste heat of the engine as the heat source, said compressors being adapted to operate in a cooling operation and a rotation speed of the engine and a number of the compressors to be operated being controlled so as to control a cooling capacity in the cooling operation.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
YANMAR DIESEL ENGINE CO LTD A CORP OF JAPAN32-GOU 1-BAN CHAYAMACHI KITA-KU OSAKA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Awasaka, Moriyoshi Chayamachi, JP 9 109
Kaneko, Teruji Chayamachi, JP 3 65
Kawabe, Toshihiko Chayamachi, JP 7 91

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