Hydraulic control arrangement

Details Hydraulic control arrangement Hydraulic control arrangement

1975-12-04

1976-08-24

Schwadron, Martin P.

Fluid handling

Systems

Supply and exhaust

91411R, 91414, 91448, 91446, F15B 1304

Patent

active

039760979

ABSTRACT:
A hydraulic control arrangement for control of fluid flow to a consumer device and comprising a three-position valve having a valve member movable between a neutral position closing at least one conduit leading to the consumer device and two working positions in one of which it connects the consumer device with a source of pressure fluid and in the other of which it connects the consumer device with a return flow conduit leading to a reservoir, a reversing valve for connecting the source of pressure fluid directly to the return flow conduit and a control conduit connected with the reversing valve. A throttle is provided in the control conduit which produces a pressure difference which can act on the valve member of the reversing valve to move the latter against the force of a spring, and the arrangement includes further means for control of the consumer device independent of the load pressure acting thereon.

REFERENCES:
patent: 3411295 (1968-11-01), Byers, Jr.
patent: 3520231 (1970-07-01), Genz
patent: 3592216 (1971-07-01), McMillen
patent: 3851566 (1974-12-01), Herrmann

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