Hydraulic power transfer unit

Details Hydraulic power transfer unit Hydraulic power transfer unit

1981-05-26

1984-02-07

Freeh, William L.

Fluid handling

Systems

Multi-way valve unit

13762522, 13762524, F17D 300

Patent

active

044297076

ABSTRACT:
A vane for use in switching a hydraulic port formed in a cylindrical surface, the vane having a wiper at the top of the vane body with a ring shaped surface whose inner edge is shaped to match the shape of the hydraulic port and surface shaped with a contour which is a portion of a cylinder so that it can mate for sliding contact with the interior cylindrical surface about the port. A ring shaped undersurface adapted to have pressure applied thereto is provided underneath the ring shaped surface to provide the force by which the vane is held against the cylindrical surface while port pressure is provided underneath the vane on an area to balance with the port area.

REFERENCES:
patent: 2972357 (1961-02-01), Ford et al.
patent: 3191629 (1965-06-01), Stoyke
patent: 3530893 (1970-09-01), Masuda
patent: 3538952 (1970-11-01), Bayer
patent: 3561979 (1971-02-01), Archer
patent: 3596569 (1971-08-01), Wisbey
patent: 3707169 (1972-12-01), Friedrichs
patent: 3796232 (1974-05-01), Dalton
patent: 4351362 (1982-09-01), Solie

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