Bimetallic valve spool

Details Bimetallic valve spool Bimetallic valve spool

1980-08-18

1982-07-06

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

13762564, 13762566, 13762569, 251324, 251368, F15B 13043

Patent

active

043377971

ABSTRACT:
A high response servovalve has an improved valve spool slidably mounted within the bore at a sleeve or body. The bearing surfaces on the spool are formed of a relatively soft material. The balance of the surfaces of the spool and the sleeve or body are relatively hard. The soft bearing material tends to absorb contaminants between the bearing lands and the sleeve, is self-healing, and is not prone to weld to the facing sleeve or body surface.

REFERENCES:
patent: 2410404 (1946-11-01), Buchanan
patent: 2908292 (1959-10-01), Beckett et al.

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