Controller for fluid pressure operated devices

Details Controller for fluid pressure operated devices Controller for fluid pressure operated devices

1977-01-24

1978-08-29

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

60384, 91467, 180132, 137596, 13762524, B62D 508

Patent

active

041096797

ABSTRACT:
A controller for fluid pressure operated devices such as power steering systems. The controller is of the type having a primary, rotatable valve member and a follow-up valve member and including a fluid meter having a metering member coupled to the follow-up valve member. The valving defines a central reference plane perpendicular to the axis of rotation of the valving, the primary valve member defining a pair of meter grooves oppositely and equally disposed about the plane. The follow-up valve defines pressure porting adjacent the plane and connected to the fluid inlet port. The primary valve member defines a pressure passage communicating with one of the meter grooves and extending a sufficient distance to communicate with the pressure porting for relative displacement of the valve members in one direction and another pressure passage communicating with the other meter groove and extending a sufficient distance to communicate with the pressure porting when the valve members are relatively displaced in the opposite direction.

REFERENCES:
patent: 3819307 (1974-06-01), Uppal
patent: 3960234 (1976-06-01), Morgan
patent: 4033377 (1977-07-01), Johnson

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