Patent ID: 6732761
Filing Date: 2004-05-11
Classification: F15B,F16K,Y10T

Abstract:
A control valve system comprising:a housing having an inlet, a first output, and a second output; a valve positionable in at least a first position where fluid communication is established between said inlet and said first output, a second position where fluid communication is established between said inlet and said second output, and a third position where fluid communication is generally prevented between said inlet and said first output or said second output, said valve being biased into said first position; a solenoid valve assembly coupled in fluid communication with said inlet, said solenoid valve assembly being positionable in an actuated position where fluid communication is established with said inlet to move said valve from said first position to said second position and a deactuated position; and a feedback passage extending between said first output and said valve so as to position said valve in said third position in response to fluid pressure within said first output, wherein said feedback passage extends from said first output, through said solenoid valve assembly, and into said valve only when said solenoid valve assembly is in said deactuated position.