FLUID VALVE ASSEMBLY

摘要

A fluid valve assembly having a housing with a valve seat which forms a fluid port. A valve is movable along an axis relative to the port between an open and a closed position. This valve includes a protrusion complementary in shape to, but slightly smaller than, the port. The protrusion is at least partially positioned in the port when the valve is in its closed position at which time a clearance space between the port and the protrusion is sufficiently small to prevent fluid flow through the port. A main spring disposed between the housing and the valve resiliently urges the valve towards its closed position. A second spring is also operatively positioned between the valve and the housing which urges the valve away from the valve seat towards its open position and prevents contact between the valve and the valve seat.

主权项

1. A fluid valve assembly comprising:
a housing having a valve seat which forms a port, a valve movable along an axis relative to said port between an open and a closed position, said valve having a protrusion complementary in shape to but slightly smaller than said port, said protrusion at least partially positioned in said port when said valve is in said closed position wherein with said valve in said closed position a clearance between said port and said protrusion is sufficiently small to prevent fluid flow through said port, a main spring disposed between said housing and said valve which resiliently urges said valve toward said closed position, a second spring operatively positioned between said valve and said housing which urges said valve away from said valve seat and prevents contact between said valve and said valve seat.