Inflatable Systems with Electro-Pneumatic Valve Modules
AssigneeGoodrich Corporation
InventorsNikhil Anthony SALDANHA, Poly Puthur JOHN
Life of this patent
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Abstract
A valve assembly may comprise: a housing cap; a valve housing having an inlet port, an outlet port, and a pilot pressure inlet port, the inlet port disposed axially opposite the housing cap; a poppet defining an axial surface and a radially outer surface, the poppet including a first radial groove disposed in the radially outer surface; a first dynamic radial seal disposed in the first radial groove and in intimate contact with a radially inner surface of the valve housing, the first dynamic radial seal configured to maintain unobstructed contact with the radially inner surface of the valve housing in response to the poppet translating axially from an open position to a closed position.
Claims5
An inflation system, comprising:
- a compressed fluid source;
- an aspirator;
- a three-way normally open solenoid valve having a first inlet port, a first outlet port, and a first vent port, the compressed fluid source in fluid communication with the first inlet port;
- and
- a pneumatic valve, comprising:
- a housing cap disposed at a first axial end of the pneumatic valve;
- a valve housing defining a second inlet port, a second outlet port, and a pilot pressure inlet port, the first outlet port of the three-way normally open solenoid valve in fluid communication with the pilot pressure inlet port, the compressed fluid source in fluid communication with the second inlet port, and the second outlet port in fluid communication with the aspirator, the second inlet port disposed at a second axial end of the pneumatic valve, the second axial end being axially opposite the first axial end;
- and
- a poppet disposed axially between the housing cap and the second inlet port, the poppet configured to seal the second inlet port in response to the three-way normally open solenoid valve being in a de-energized sate, and the poppet configured to translate axially toward the housing cap and fluidly couple the second inlet port and the second outlet port in response to the three-way normally open solenoid valve being an energized state.
Dependencies are inferred from the claim text.