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US 10,330,205 B2Granted
Valve assembly with electronic control
AssigneeAerojet Rocketdyne, Inc.
InventorsMark Michaelsen, Aaron Shook
Life of this patent
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Abstract
A valve assembly includes a housing (22) that has a fluid input (24) and a fluid output (26). A pintle (30) is disposed in the housing, and an actuator (36) is operatively coupled to move the pintle. The pintle includes a passage (32) that fluidly couples the fluid output with a pressure balance volume (34) located between the pintle and the housing adjacent the linear actuator. A controller (38) is electrically connected with the actuator, and there is a variable flow area (40) from the fluid input to the fluid output that is defined between the pintle and the housing.
Claims16
A valve assembly comprising:
- a housing having a fluid input and a fluid output;
- a pintle disposed in the housing;
- an actuator operatively coupled to move the pintle, the pintle including a passage fluidly coupling the fluid output with a pressure balance volume located between the pintle and the housing adjacent the actuator;
- a controller electrically connected with the actuator;
- and
- a variable flow area from the fluid input to the fluid output defined between the pintle and the housing,
- wherein the controller is configured to move the pintle via the actuator responsive to a pressure ratio between an instant input pressure at the fluid input and an instant output pressure at the fluid output.
4 more elements
Dependencies are inferred from the claim text.