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US 11,448,139 B2Granted
Fueldraulic air valve
AssigneeHamilton Sundstrand Corporation
InventorsFrancis P. Marocchini, Aaron F. Rickis, August M. Coretto, Scott W. Simpson, Gary R. Marconi, Glenn Gradischer
Life of this patent
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Abstract
A valve assembly for a turbine engine includes a valve arranged in an air flow path. The valve has a shaft. The valve is movable between an open position and a closed position. A hydraulic actuator is coupled to the shaft. The hydraulic actuator is configured to utilize fuel as a working fluid. The hydraulic actuator is configured to move the valve between the open position and the closed position.
Claims17
A valve assembly for a turbine engine, comprising:
- a poppet valve arranged in an air flow path, the valve having a shaft, the valve movable between an open position and a closed position;
- and
- a hydraulic actuator coupled to the shaft, the hydraulic actuator configured to utilize fuel as a working fluid, the hydraulic actuator configured to move the valve between the open position and the closed position, wherein a linear variable displacement transformer is arranged on the shaft, wherein an actuator housing defines a cavity about the shaft and a cooling port extends through the housing to permit ambient air to flow into the cavity.
A turbine engine, comprising:
- a compressor configured to deliver air to a combustor;
- and
- a poppet valve assembly having a valve arranged in an air flow path connected to the compressor, the valve having a shaft, the valve movable between an open position and a closed position, and a hydraulic actuator coupled to the shaft, the hydraulic actuator configured to communicate and utilize fuel as a working fluid, wherein a linear variable displacement transformer is arranged on the shaft, the hydraulic actuator configured to move the valve between the open position and the closed position, wherein an actuator housing defines a cavity about the shaft and a cooling port extends through the housing to permit ambient air to flow into the cavity.
Dependencies are inferred from the claim text.