A system is provided. The system includes a dual piston actuator and valves. The dual piston actuator includes a primary actuator and a protection actuator. The primary and protection actuators move to increase and decrease a pitch of propellers of an aircraft with respect to a supply of first and second mediums. The valves include a first check valve, a second check valve, and a third valve. The third valve operates between a first mode and a protection mode. The second medium is directed to the primary and protection actuators through the first and second check valves by the third valve when the third valve is operating in a protection mode.
Dual actuator hydraulic pitch-lock propeller system
2021-08-24
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
Hydraulic system for controlling controllable-pitch propeller
European Patent Office | 2021
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