Liquid-feeding rotary-screw compressor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11873817
APP PUB NO 20220403845A1
SERIAL NO

17771715

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A delivery port of a rotary-screw compressor includes a first opening having a profile configured to interrupt communication with a second working chamber of a suction process that opens only in the axial direction; a second opening connected to the first opening; and a third opening connected to the first and second openings. The profile of the first opening includes a first profile line that forms one of a pair of lateral edges of a lingulate protrusion; a second profile line that forms another one of the pair of the lateral edges of the protrusion; a third profile line that extends toward the reference point along the root circle of the female rotor; and a second connection line that connects the first and second profile lines. The second opening opens into the first opening at the second connection line. The third opening opens into the first groove.

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Patent Owner(s)

Patent OwnerAddress
HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO LTDTOKYO JAPAN TOKYO METROPOLIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chiba, Kotaro Tokyo, JP 31 26
Morita, Kenji Tokyo, JP 168 2753
Takano, Masahiko Tokyo, JP 47 270
Tsuchiya, Takeshi Tokyo, JP 60 335
Yorikane, Shigeyuki Tokyo, JP 28 21

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