Directional control valve

Details Directional control valve Directional control valve

1977-01-31

1978-08-29

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

13759612, 13762524, F15B 1304

Patent

active

041096827

ABSTRACT:
A valve for supplying pressure fluid to an output utilization device, such as a motor, in a continuous manner from zero to maximum pressure in first and second directions comprises a valve block having a valve bore therein, and a valve spool which is rotatably mounted in the valve bore. The valve block has various passages in communication with the valve bore and the valve spool has circumferential recesses, longitudinally directed grooves and a through-hole therein which are in selective communication with the various passages of the valve block to provide variable pressure fluid flow in first and second directions to an output utilization device which is coupled to a pair of passages of said valve block.

REFERENCES:
patent: 2234322 (1941-03-01), Sicard
patent: 3918494 (1975-11-01), Dalton

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