Motor-integrated fluid machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11821428
APP PUB NO 20230184252A1
SERIAL NO

16316869

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Abstract

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Provided is a motor-integrated fluid machine that has improved performance and reliability by efficiently cooling a fluid machine body and a motor without increasing an installation space. The present invention is characterized by being provided with: a fluid machine unit that compresses or expands a fluid; a motor unit that has a drive shaft connected to the fluid machine unit; and a cooling fan that cools the motor unit and the fluid machine unit by sucking cooling air from the motor unit side and that is connected to the drive shaft at the side opposed to that connected to the fluid machine unit, wherein between the motor unit and the cooling fan, the minimum sectional area of a cooling air passage from the outside in the radial direction toward the drive shaft is larger than that of a cooling air passage from the motor unit side toward the cooling fan.

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Patent Owner(s)

Patent OwnerAddress
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO LTDTOKYO 101-0022

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kanemoto, Yoshiyuki Tokyo, JP 32 129
Kato, Fuminori Tokyo, JP 33 127
Yamazaki, Shumpei Tokyo, JP 35 380

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