Directional control valve

Details Directional control valve Directional control valve

1993-09-20

1995-03-28

Nilson, Robert G.

Fluid handling

Systems

Flow path with serial valves and/or closures

91446, 137854, 137884, F16K 1107

Patent

active

054008212

ABSTRACT:
A directional control valve for compressed air with an inlet port, at least one consumer port and at least one vent port includes a housing accommodating a control piston for controlling the connection between the inlet port, the consumer port and the vent port, and a one-way restrictor arrangement. The one-way restrictor arrangement is fitted directly within the housing between the vent port and the consumer port, transversely to the longitudinal axis of the control piston. In this manner, a flow of compressed air to the consumer is prevented upon occurrence of a dynamic pressure.

REFERENCES:
patent: 3126795 (1964-03-01), Kesselring
patent: 4377183 (1983-03-01), Johansson
patent: 4485846 (1984-12-01), Neff
patent: 4550749 (1985-11-01), Krikorian
patent: 4770209 (1988-09-01), Neff
patent: 5054517 (1991-10-01), Liesenhoff

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