Hydraulic directional memory unit

Details Hydraulic directional memory unit Hydraulic directional memory unit

1975-08-18

1977-02-01

Cohan, Alan

Fluid handling

Systems

Multi-way valve unit

13762564, 13759617, 91459, F15B 2108

Patent

active

040057348

ABSTRACT:
A fluid system having a source of fluid pressure such as a fluid pump connected to a fluid user such as a fluid motor is provided with a directional control valve between the fluid source and the fluid user for selectively controlling its direction of movement. The directional control valve is a three-position, tandem-center, pilot operated four-way valve which, in the preferred embodiment of the invention, is modified to include a two-position, four-way directional control valve between the pilot valve and the main valve of the system to provide a hydraulic memory.

REFERENCES:
patent: 3762076 (1973-10-01), Eftefield

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