Patent ID: 6851657
Filing Date: 2005-02-08
Classification: F16K

Abstract:
1. A valve operable between a valve closed position and a valve opened position for a gaseous fuel system comprising: a housing having a gaseous fuel inlet port, a gaseous fuel outlet port and a chamber disposed between said gaseous inlet port and said gaseous fuel outlet port; a valve seat disposed adjacent said gaseous fuel outlet port and including a convex radius surface surrounding said gaseous fuel outlet port; a magnetic coil; an armature magnetically coupled to said magnetic coil and disposed within said housing and being movably responsive to said magnetic coil; said armature having an actuator pin; a piston engaging said actuator pin of said armature and being movable within said chamber away from said seat when said magnetic coil is actuated in the valve open position, such that gaseous fuel flows from said gaseous fuel inlet port through said chamber to said gaseous fuel outlet port and said piston engaging said seat when said magnetic coil is deactuated in the valve closed position to prevent gaseous fuel flowing from said inlet port to said gaseous fuel outlet port; and said piston including a radius surface for engaging said radius surface of said valve seat for closing said gaseous fuel outlet port and said piston having an aperture therethrough with said aperture extending through said radius surface of said piston.