Patent ID: 11873771
Assignee: GE AVIATION CZECH S.R.O.
Field: Transport (Mechanical engineering)
Classification: CPC B  F  Y | IPC B  F

Claim 0:
1. A propeller controller comprising:
at least one electrohydraulic servovalve operable to selectively allow a flow of hydraulic fluid to or from a propeller dome; and
at least one valve selectively fluidly coupling the propeller dome to an inlet port of the at least one electrohydraulic servovalve, wherein the at least one valve includes a one-way valve having an inlet fluidly coupled to the propeller dome and an outlet fluidly coupled to the inlet port of the at least one electrohydraulic servovalve and, the one-way valve having an open position and a closed position, the one-way valve in the open position supply hydraulic fluid from the propeller dome to the inlet port of the at least one electrohydraulic servovalve at a first hydraulic pressure at the inlet port, the one-way valve in the closed position to not supply hydraulic fluid from the propeller dome to the inlet port of the at least one electrohydraulic servovalve at a second hydraulic pressure at the inlet port, the first hydraulic pressure less than the second hydraulic pressure.