Power steering control valve

Details Power steering control valve Power steering control valve

2006-04-11

2006-04-11

Rivell, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C091S37500R

Reexamination Certificate

active

07025091

ABSTRACT:
An improved structure a control valve for a power steering gear includes a valve sleeve having a plurality of lands and a valve core rotatable within the valve sleeve and having a plurality of lands. At least one land of the valve core and at least a pair of lands of the valve sleeve located on opposite sides of the land of the valve core have surfaces which cooperate with one another during rotation to produce a first constricting orifice at the beginning of rotation and a second constricting orifice at the maximum amount of rotation. The size of the second constricting orifice being greater than the size of the first constricting orifice.

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