Pulse actuated hydraulic pump

Details Pulse actuated hydraulic pump Pulse actuated hydraulic pump

1986-06-18

1988-09-27

Stout, Donald E.

Power plants

Pressure fluid source and motor

Pump means moves motive fluid from one chamber to an...

60473, 60493, 417315, 417322, 417412, 417505, F16D 3102

Patent

active

047732180

ABSTRACT:
A pulse-actuated hydraulic pump includes a hydraulic chamber with a bellows having a volume increased or decreased by the selective application a force in an axial direction thereof by a piezoelectric actuator. Control means control electrically-driven valves to selective discharge fluid from the bellows in precisely controllable volumes through a first pumping port or a second pumping port.

REFERENCES:
patent: 987962 (1911-03-01), Courtney
patent: 2995012 (1961-08-01), Cassaday et al.
patent: 3130333 (1964-04-01), Freye
patent: 3153317 (1964-10-01), Manor et al.
patent: 3406670 (1968-10-01), Hines
patent: 3477177 (1969-11-01), Tucker, Jr.
patent: 3987625 (1976-10-01), Swatty et al.
patent: 4344743 (1982-08-01), Bessman et al.

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