Heat pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10641530
SERIAL NO

15558470

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An exemplary heat pump (10) includes: a compressor (16A, 16B) that discharges refrigerant; an oil separator (30) that separates oil from the refrigerant discharged from the compressor; an oil return channel (80) that returns the oil separated by the oil separator to the compressor; a pressure sensor (86A, 86B) that detects a pressure in the oil return channel; a first pressure loss member (84A, 84B) and a second pressure loss member (88A, 88B) disposed in portions of the oil return channel at an oil separator side and a compressor side relative to the pressure sensor; and a control device that increases an output of the compressor in a case where a pressure detected by the pressure sensor exceeds a suction pressure of the compressor and less than a discharge pressure of the compressor.

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Patent Owner(s)

  • YANMAR CO., LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aikawa, Terunori Osaka, JP 8 7
Kihara, Hirotoshi Osaka, JP 12 32
Nakamura, Hirotaka Osaka, JP 79 480
Nobuhara, Hirohiko Osaka, JP 3 6
Ota, Keisuke Osaka, JP 88 657

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