Multistage compression system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11994127
APP PUB NO 20210340981A1
SERIAL NO

17280078

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Abstract

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A multistage compression system uses refrigerant and oil. The multistage compression system includes a low-stage compressor that compresses the refrigerant, a high-stage compressor that further compresses the refrigerant compressed by the low-stage compressor, and an oil return pipe that returns the oil discharged by the high-stage compressor or the oil in the high-stage compressor to the low-stage compressor. The low-stage compressor has a rotary compression part that compresses the refrigerant, a motor that drives the compression part, and a container housing the compression part and the motor. The motor is disposed above the compression part. The oil return pipe is connected to a space below the motor inside the container.

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Patent Owner(s)

Patent OwnerAddress
DAIKIN INDUSTRIES LTDOSAKA UMEDA TWIN TOWERS SOUTH 1-13-1 UMEDA KITA-KU OSAKA-SHI OSAKA 5300001

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adachi, Masaaki Osaka, JP 12 70
Kajiwara, Mikio Osaka, JP 29 186
Nishide, Yohei Osaka, JP 6 12
Ohnishi, Yousuke Osaka, JP 6 3
Okamoto, Daisuke Osaka, JP 65 528
Tomioka, Naoto Osaka, JP 10 13

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