Claims
- 1. A valve operable between a valve closed position and a valve opened position for a gaseous fuel system comprising:
a housing having a fuel inlet port, a fuel outlet port and a chamber disposed between said inlet port and said fuel outlet port; a valve seat disposed adjacent said fuel outlet port and including an aperture; a magnetic coil; an armature magnetically coupled to said magnetic coil and disposed within said housing and being movably responsive to said magnetic coil; a piston coupled to 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 fuel flows from said inlet port through said chamber to said outlet port and said piston engaging said seat when said magnetic coil is deactuated in the valve closed position to prevent fuel flowing from said inlet port to said outlet port; and said piston including a projection for closing said valve seat aperture in the valve closed position.
- 2. A valve operable between a valve closed position and a valve opened position for a gaseous fuel system comprising:
a housing having a fuel inlet port, a fuel outlet port and a chamber disposed between said inlet port and said fuel outlet port; a valve seat disposed adjacent said fuel outlet port and including a convex radius surface surrounding said 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; a piston coupled to 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 fuel flows from said inlet port through said chamber to said outlet port and said piston engaging said seat when said magnetic coil is deactuated in the valve closed position to prevent fuel flowing from said inlet port to said outlet port; and said piston including a radius surface for engaging said radius surface of said valve seat for closing said fuel outlet port.
- 3. The valve of claim 2 wherein said housing includes:
an upper portion including said fuel inlet port and said chamber; and a lower portion including said outlet port and said valve seat.
- 4. The valve of claim 3 and further including an O-ring disposed between said housing upper portion and said housing lower portion.
- 5. The valve of claim 3 wherein said housing upper portion includes a recess and said housing lower portion includes a step received within said housing upper portion recess.
- 6. The valve of claim 2 wherein said piston includes a convex radius surface.
- 7. The valve of claim 2 wherein said chamber includes an angled surface adjacent said valve seat.
RELATED APPLICATION
[0001] This application claims the benefits of provisional application Serial No. 60/373,638, filed Apr. 19, 2002 and entitled “High Pressure Gaseous Fuel Solenoid Valve”.
Provisional Applications (1)
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Number |
Date |
Country |
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60373638 |
Apr 2002 |
US |