Controlled output gear pump and motor

Details Controlled output gear pump and motor Controlled output gear pump and motor

1973-07-10

1976-04-20

Vrablik, John J.

Pumps

With condition responsive pumped fluid control

Bypass or relief valve controls venting by movable pump...

417286, 418126, 418127, 418196, F04B 4902, F01C 1904, F01C 108, F03C 300

Patent

active

039515753

ABSTRACT:
A gear pump and motor having a plurality of pumps and motors, each of which have at least three gears interengaged with one another, seal members disposed adjacent to the gears, and control means for selectively controlling the movement of the seal members toward or away from the gears of the pump and motors so as to selectively actuate the pumps and motors so as to attain a desired output.

REFERENCES:
patent: 3068795 (1962-12-01), Lauck
patent: 3427985 (1969-02-01), Difford
patent: 3472170 (1969-10-01), Eckerle
patent: 3597131 (1971-08-01), Schofield

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