Load sensed variable output gear pump

Details Load sensed variable output gear pump Load sensed variable output gear pump

1991-10-29

1993-09-14

Bertsch, Richard A.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

417304, F04B 4900

Patent

active

052443582

ABSTRACT:
A load sensed variable output gear pump having adjustable high pressure compensation, tuneable response, low unloading pressure and variable pressure drop adjustability. It comprises a unitary housing enclosing a pump which pumps through a main inlet-outlet passage which by-passes through a fixed control and a variable control to an outlet passage leading to a reservoir. An overload control may also be used connected to an inlet load sensing passage which tends to close said fixed and variable controls.

REFERENCES:
patent: 3379133 (1968-04-01), McCormick
patent: 3828813 (1974-08-01), Haussler
patent: 4040438 (1977-08-01), Wilke
patent: 4122865 (1978-10-01), Budzich
patent: 4520902 (1985-06-01), Snow
patent: 4798126 (1989-01-01), Budzich
patent: 5048396 (1991-09-01), Torkler et al.

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