Patent ID: 6546959
Filing Date: 2003-04-15
Classification: F16K,Y10T

Abstract:
A valve comprising:a one-piece bobbin/valve body defining a common port, a normally closed port, a normally open port, a longitudinal bore, respective passageways between the longitudinal bore and the three ports, and a central section between two of the three ports; a solenoid which is selectively energizable to produce a magnetic field; a plunger including a plunger body which moves within the bore in response to energization/deenergization of the solenoid between a first position whereat the passageway to the normally closed port is sealed from the longitudinal bore and the passageway to the normally open port communicates with the longitudinal bore and a second position whereat the passageway to the normally closed port communicates with the longitudinal bore and the passageway to the normally open port is sealed from the longitudinal bore; wherein the bobbin/valve body defines a chamber around the central section and wherein the solenoid includes a coil positioned within the chamber.