Valve assembly with dual actuation solenoids

Details Valve assembly with dual actuation solenoids Valve assembly with dual actuation solenoids

2007-01-05

2010-06-15

Hepperle, Stephen (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C137S596150, C251S029000

Reexamination Certificate

active

07735518

ABSTRACT:
A solenoid actuated valve assembly includes a valve body having a slidable main valve member and a pilot valve body mechanically connected to the valve body including a slidable pilot valve member. A first solenoid operated valve connected to the pilot valve body when energized directs pressurized fluid to move the pilot valve member between pilot valve open and closed positions. A second solenoid operated valve connected to the valve body when simultaneously energized with the first valve directs the fluid to move the main valve member between valve closed and open positions. A third solenoid operated valve connected to the pilot valve body when energized and when both the first and second solenoid operated valves are de-energized directs the fluid to move the pilot valve to the pilot valve open position and the main valve member to the valve closed position.

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