Control device for an axial piston machine

Details Control device for an axial piston machine Control device for an axial piston machine

1978-08-01

1981-06-16

Freeh, William L.

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

91506, F04B 126, F01B 1304

Patent

active

042735173

ABSTRACT:
A control device for an axial piston machine in which the rocker controlling the angular orientation of the cylinder drum is shifted by a differential-action setting piston having a pin which engages in the rocker. The opposite end of this pin bears via a pressure body on one arm of a bell crank lever which can have a curved camming surface, the pressure body including a roller and being urged by a first spring against the bell crank lever. The other arm of the bell crank lever is engaged on one side by a control piston subjected to the pump pressure while the valve member which controls the pressure to the large-diameter side of the setting piston engages the opposite side of the bell crank lever and is urged against this opposite side by a second spring.

REFERENCES:
patent: Re29333 (1977-08-01), Pensa
patent: 3554671 (1971-01-01), Schlinke
patent: 3669570 (1972-06-01), Himmmler
patent: 3958496 (1976-05-01), Wallin
patent: 4077744 (1978-03-01), Pensa

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