Hydraulic control valve

Details Hydraulic control valve Hydraulic control valve

1975-10-03

1977-05-10

Cohan, Alan

Valves and valve actuation

Reciprocating valve

Piston

13762569, F16K 324, F15B 13042

Patent

active

040224252

ABSTRACT:
In a hydraulic control valve a spool accommodating bore of a valve body has eccentric circular grooves. Hydraulic resistance to the fluid flow in shallow portion of the grooves is more than that in deep portions, owing to which the fluid flow by-passes the high-resistance zones in the shallow portions, so that the total hydraulic resistance and the path of the fluid flow through the valve is reduced.

REFERENCES:
patent: 3435851 (1969-04-01), Olmsted
patent: 3530883 (1970-09-01), Karmer
patent: 3565115 (1971-02-01), Beckett et al.
patent: 3605809 (1971-09-01), Thorson

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