Fluid pressure unit with hydrostatic torque transmission by roll

Details Fluid pressure unit with hydrostatic torque transmission by roll Fluid pressure unit with hydrostatic torque transmission by roll

1977-07-13

1979-03-20

Freeh, William L.

Motors: expansible chamber type

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

Motive fluid bypass to or from assembly

F01B 1306

Patent

active

041447980

ABSTRACT:
A fluid pressure unit with a cylinder block is provided with radial bores of rectangular cross section. Pistons are disposed in the bores, each of the pistons being provided with a piston cap which is subjected periodically to pressure of a medium and with a roller resting against the piston cap. A cam is provided around the cylinder block, upon which the respective rollers rest. Each roller defines a variable throttle space with a first side wall of a respective one of the radial bores, which wall is vertical with respect to the rotational direction. The piston cap forms a sealing point with at least a second of two side walls.

REFERENCES:
patent: 1567912 (1925-12-01), Carey
patent: 3433124 (1969-03-01), Darrett
patent: 3435774 (1969-04-01), Darrett
patent: 3636821 (1972-01-01), Rystrom
patent: 3858487 (1975-01-01), Abe
patent: 3866519 (1975-02-01), Miyao
patent: 3884124 (1975-05-01), Eddy
patent: 3960057 (1976-06-01), Romotani

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