Differential pressure regulating shut-off valve
AssigneeGE Aviation Systems LLC
InventorsJerry Dean Hielkema, Kevin Hallisey
Life of this patent
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Abstract
Provided is a valve assembly system including a flowbody including a channel formed at an inner surface thereof, a butterfly plate disposed within the channel and rotatably mounted within the flowbody. The system also includes a pair of dual-sided pistons that receive differential pressure at an input side and an output side of the valve assembly system. A spring is controlled for biasing against at least one of the dual-sided pistons based on the differential pressure, and to rotate the butterfly plate to regulate the differential pressure and the valve assembly system to a predetermined output pressure.
Claims17
A valve assembly system comprising:
- a flowbody including a channel formed at an inner surface thereof;
- a butterfly plate disposed within the channel and rotatably mounted within the flowbody;
- a pair of dual-sided pistons, each piston configured to receive differential pressure from an input side and an output side of the valve assembly system at respective ends of each piston;
- a spring controlled for biasing against at least one of the dual-sided pistons responsive to the differential pressure, wherein the spring is configured to rotate the butterfly plate to regulate the differential pressure and the valve assembly system to a predetermined output pressure;
- and
- a shaft connected to the butterfly plate and between the pair of dual-sided pistons, wherein the spring is mounted to the shaft.
A valve assembly system comprising:
- a flowbody including a channel formed at an inner surface thereof;
- a butterfly plate disposed within the channel and rotatably mounted within the flowbody;
- a single dual-sided piston disposed at an output side or an input side of the valve assembly system, and configured to receive differential pressure from the input side and the output side of the valve assembly system at respective ends of the single dual-sided piston;
- a spring controlled to be biased against at the dual-sided piston based on the differential pressure, wherein the spring is configured to rotate the butterfly plate to regulate the differential pressure and the valve assembly system to a predetermined output pressure;
- and
- a shaft connected to the butterfly plate and the single dual-sided piston, wherein the spring is mounted to the shaft.
A valve assembly system comprising:
- a flowbody including a channel formed at an inner surface thereof;
- a butterfly plate disposed within the channel and rotatably mounted within the flowbody;
- a single dual-sided piston configured to receive differential pressure from an input side and an output side of the valve assembly system at respective ends of the single dual-sided piston;
- a spring configured to be biased against the dual-sided piston, to control a rotation of the butterfly plate, wherein the rotation of the butterfly plate is based upon a force balance between the differential pressure received at the dual-sided piston and a force of the spring, to thereby regulate the differential pressure;
- and
- a shaft connected to the butterfly plate and the single dual-sided piston, wherein the spring is mounted to the shaft.
Dependencies are inferred from the claim text.