Pilot-operated directional control valve

Details Pilot-operated directional control valve Pilot-operated directional control valve

1998-09-30

1999-12-07

Michalsky, Gerald A.

Fluid handling

Convertible

Unit orientable in a single location between plural positions

13762564, F15B 13043

Patent

active

059966092

ABSTRACT:
An internal pilot channel branching from a supply port, an external pilot channel leading to an external pilot port, and a pilot input channel for guiding a pilot fluid to a pilot valve are opened in parallel on a channel-switching surface formed in a body. A channel-switching plate having a dent large enough to extend across the openings of two adjacent channels is mounted on the channel-switching surface in such a way that its direction can be changed by 180.degree..

REFERENCES:
patent: 5086803 (1992-02-01), Nakajima
patent: 5273074 (1993-12-01), Conradt et al.
patent: 5615710 (1997-04-01), Sato
patent: 5860445 (1999-01-01), Yoshimura et al.
patent: 5868157 (1999-02-01), Yoshimura et al.

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