Valve sleeve assembly

Details Valve sleeve assembly Valve sleeve assembly

1992-01-21

1993-02-09

Fox, John C.

Fluid handling

Systems

Multi-way valve unit

13762566, 13762569, F16K 1107

Patent

active

051846438

ABSTRACT:
A shrunk fit annular valve sleeve assembly characterized by a land configuration which provides a reduced annular area of engagement with the surrounding housing compared to the annular area of the base portion of the land disposed inwardly toward the spool bore to reduce the effects of temperature changes which cause spool bore deflection when using different metals for the housing and the sleeve. One preferred embodiment of a valve sleeve described defines a generally truncated triangular upraised land formed by complimentary shaped adjacent recesses when the sleeve is viewed in a section taken along a radial plane perpendicular to the axis of the spool bore.

REFERENCES:
patent: 3354912 (1967-11-01), Gordon et al.
patent: 3590874 (1971-07-01), Rice
patent: 4087967 (1978-05-01), Knapp

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