Pilot operated electrically actuated value assembly

Details Pilot operated electrically actuated value assembly Pilot operated electrically actuated value assembly

1991-03-11

1992-09-08

Schwadron, Martin P.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 3005, F16K 3106, F16K 5100

Patent

active

051451450

ABSTRACT:
A pilot operated electromagnetically actuated valve having a flexible diaphragm main valve operator with a rigid insert forming the pilot valve seat and passage. The pilot valving chamber cover serves as an armature pilot valve guide and also has plural spaced ribs engaging and guiding movement of the rigid insert and pilot valve seat. A separate inlet passage having an annular filter formed by circumferentially spaced grooves and a resilient flange provided on a disc member inserted in the valve inlet flow to a remote pilot bleed hole in the cover for supplying the pilot valving chamber.

REFERENCES:
patent: 4178573 (1979-11-01), Swanson
patent: 4534537 (1985-08-01), Zukausky
patent: 4981155 (1991-01-01), Pick et al.
patent: 4987920 (1991-01-01), Donner

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