Fluid rotary machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8608455
APP PUB NO 20130133511A1
SERIAL NO

13704035

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Abstract

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A fluid rotary machine with a decreased footprint and a reduction in the number of parts. The fluid rotary machine has four heads wherein double-headed pistons are disposed inside cylinders in a crisscross arrangement. The rotational balance between rotational parts including the double-headed pistons is achieved only by first and second balance weights which are inserted and incorporated into both ends of a crank shaft coupled eccentrically to a shaft. The shaft is rotated for the double-headed pistons to linearly reciprocate in the cylinders. The fluid rotary machine has rotary valves for switching between the suction and discharge operations of the fluid for each cylinder chamber. The rotary valves are incorporated into a case to be coaxial and integrally rotatable with the shaft.

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Patent Owner(s)

Patent OwnerAddress
NIPPO LTDOSAKA 564

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishida, Naoya Inazawa, JP 18 36
Komatsu, Fumito Shiojiri, JP 48 300
Shimazu, Isao Inazawa, JP 3 11

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