Power regulating device for a hydrostatic pump

Details Power regulating device for a hydrostatic pump Power regulating device for a hydrostatic pump

1983-04-04

1985-04-09

Look, Edward K.

Pumps

Condition responsive control of drive transmission or pump...

Plural pumps with individual or relative control

417220, F04B 4900

Patent

active

045099022

ABSTRACT:
A power regulating device for a hydrostatic pump with at least one pressure-loaded piston which adjusts a stroke-varying member and is controlled by a valve with two springs acting upon one side of the valve and a gauge piston loaded by the delivery pressure and a lever through which a force proportional to the delivery pressure acts upon the other side of the valve, is provided with an additional spring which acts upon the gauge piston via an intermediate member in the same direction in which the delivery pressure acts, and with a second pressure medium source arranged to act with a variable control pressure upon the intermediate member against the additional spring.

REFERENCES:
patent: 3924969 (1975-12-01), Rometsch et al.
patent: 3969896 (1976-07-01), Louis
patent: 4013381 (1977-03-01), Hein et al.
patent: 4067664 (1978-01-01), Robeller
patent: 4158529 (1979-06-01), Nonnemacher et al.

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