Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Separate motive fluid control for each working chamber
Patent
1989-07-03
1990-12-11
Chambers, A. Michael
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Separate motive fluid control for each working chamber
74 52, 74 63, F01B 310
Patent
active
049761897
ABSTRACT:
A motion translating device that includes two or more units mounted on a shaft supported for rotation on a frame. The units are equi-spaced circumferentially about the shaft for balance of the rotating system and each includes arms secured to and radiating outwardly from the shaft, a crank arm journaled on such arms and a fluid actuated piston cylinder unit anchored at one end to the shaft for limited oscillatory movement thereon and at the other end connected to the crank portion of the crank arm. Rotation of the crank arm is resisted preferably selectively by an adjustably variable force. Pressurized fluid flows through said shaft to and from the piston cylinder units with rotary couplings providing connection to a pressure source external to the device. There is a sequence and control valve for the units preferably one for each pair of units controlling flow of fluid to and from the piston cylinder units and in timed relation with and in response to rotation of the crank shaft.
REFERENCES:
patent: 1516948 (1924-11-01), Benedix
patent: 2652035 (1953-09-01), Bayer
patent: 2783657 (1957-03-01), Kohlhagen
patent: 4004498 (1977-01-01), Aoki
patent: 4658703 (1987-04-01), Greene
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