Variable displacement sliding vane pump/hydraulic motor

Details Variable displacement sliding vane pump/hydraulic motor Variable displacement sliding vane pump/hydraulic motor

1983-10-19

1985-11-05

Smith, Leonard E.

Rotary expansible chamber devices

With changeable working chamber magnitude

By axial movement of movable member

418267, F04C 1504

Patent

active

045510806

ABSTRACT:
This invention, a variable displacement sliding vane pump/hydraulic motor, incorporates an eccentric chamber in which a rotor with a plurality of axially and radially moveable sliding vanes rotates. Axial positioning of the sliding vanes is accomplished by positioning a sliding wall; the swept volume and therefore the capacity of this invention is also directly related to the positioning of the sliding wall. This sliding wall can be positioned by external means including conventional manual and automatic devices. Various embodiments permit pumping capacity variability from essentially zero flow to full flow without the use of bypasses.

REFERENCES:
patent: 1527685 (1925-02-01), Huwiler
patent: 1797905 (1931-03-01), Dooley
patent: 2330565 (1943-09-01), Eckart
patent: 2581160 (1952-01-01), Adams
patent: 2925785 (1960-02-01), Sander
patent: 4046493 (1977-09-01), Alund

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