Liquid-cooled rotary compressor and coolant supply method therefor

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United States of America Patent

PATENT NO 12123411
APP PUB NO 20230383749A1
SERIAL NO

18121630

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A liquid-cooled rotary compressor includes a compressor main body having a compression chamber formed by a fixed wall and a rotating wall and compressing gas, and a liquid injection path for injecting a coolant into the compression chamber, and adjusts a discharge flow rate by changing a rotational speed of the rotating wall. The compressor includes a liquid amount adjusting unit that adjusts an amount of the coolant supplied from the liquid injection path to the compressor main body according to a change in the rotational speed of the rotating wall, and a compressed gas supply path that supplies compressed gas to a downstream side of the liquid amount adjusting unit in the liquid injection path. The compressed gas is supplied from the compressed gas supply path to the liquid injection path according to the amount of the coolant supplied to the compressor main body.

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Patent Owner(s)

Patent OwnerAddress
HITACHI LTD6-6 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1008280 ?1008280

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chiba, Kotaro Tokyo, JP 31 26
Hisano, Nae Tokyo, JP 14 267
Iijima, Ryota Tokyo, JP 5 1
Tsuchiya, Takeshi Tokyo, JP 60 335

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