Patent ID: 7533690
Filing Date: 2009-05-19
Classification: F16K,G05D,Y10T

Abstract:
1. A multifunctional fluid control apparatus comprising: a housing having an inlet passage joined with an outlet passage through a poppet valve; the housing further providing a control diaphragm within a control chamber, the control diaphragm separating the control chamber into a first volume thereof and a second volume thereof; a push pin joining the control diaphragm with the poppet valve; a pressurizing valve joining the inlet passage with the first volume for controlling fluid flow therebetween; a depressurizing valve joining the first volume with one of the outlet passage and a vent; for controlling fluid flow between the first volume and one of the outlet passage and the vent; a pneumatic piston actuator having a three-way solenoid valve and a pneumatic actuator piston, the pneumatic actuator piston positional between a non-contacting and a contacting positions relative to the diaphragm, wherein, in the contacting position, the poppet valve is opened.