Valve assembly with dual actuation solenoids
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United States of America Patent
Stats
-
Jun 15, 2010
Grant Date -
Jul 10, 2008
app pub date -
Jan 5, 2007
filing date -
Jan 5, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
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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