Power transmission

Details Power transmission Power transmission

1987-03-23

1988-11-29

Freeh, William L.

Pumps

Three or more cylinders arranged in parallel, radial, or...

Motor driven

91482, F04B 120, F04B 3500

Patent

active

047878282

ABSTRACT:
A reversible power transmission unit comprising a housing and a cam block rotatably mounted in the housing and a pumping mechanism associated with opposed inclined surfaces of the cam block. A common shaft is rotatably mounted in the cam block and has its ends extending beyond the cam block. Each pumping mechanism includes a cylinder barrel mounted on the shaft for rotation with the shaft and having a plurality of cylinders with pistons slidable therein and operatively associated with a surface of the cam block. Each cylinder has a port opening to a valve plate provided with inlet and outlet ports in communication with inlet and outlet passages at each end of the housing. When one of the pumping mechanisms is operated as a motor, it drives the other pumping mechanism as a pump.

REFERENCES:
patent: 1908612 (1933-05-01), Johnson
patent: 2453128 (1948-11-01), Hautzenroeder
patent: 2847938 (1958-08-01), Gondek
patent: 3627451 (1971-12-01), Kouns
patent: 4478557 (1984-10-01), Schott

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