Throttling slot configuration for a valve spool

Details Throttling slot configuration for a valve spool Throttling slot configuration for a valve spool

1975-02-04

1977-03-01

Rosenthal, Arnold

Valves and valve actuation

Balanced valves

Reciprocating

13762569, 1376253, F16K 4704, F16K 510, F16K 1107

Patent

active

040098648

ABSTRACT:
A throttling slot is formed in a control valve spool and interconnects a reduced diameter portion and a peripheral surface of a land provided on the spool with the throttling slot including a pocket recessed into the land at an angle inclined in the direction opposite to the normal direction of movement of the spool for effecting fluid flow through the throttling slot, and a longitudinally extending groove from the pocket which terminates in an end intersecting the reduced diameter portion.

REFERENCES:
patent: 2812775 (1957-11-01), Hodgson
patent: 2971536 (1961-02-01), Junck et al.
patent: 3009480 (1961-11-01), Miller
patent: 3123335 (1964-03-01), Darling
patent: 3198212 (1965-08-01), Junck et al.
patent: 3556155 (1971-01-01), Morris

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