engine assembly, drive system for operating an engine thrust inverter and method for operating an aircraft engine thrust inverter

摘要

a pulse inverter includes: a movable impulse reversing element between a retracted position and a driven position; at least one hydraulic actuator operably coupled to move the thrust reversal member between retracted and actuated positions; at least one primary hydraulic lock configured for transition in response to a first triggering pressure between a engaged state where movement of the impulse reversing element is inhibited and a released state where movement of the impulse reversing element is uninhibited; and a directional control unit fluidly coupled to the hydraulic actuator and hydraulic primary lock, the directional control unit configured to transition from a first phase to a second phase in response to a second trigger pressure that is greater than first actuation pressure and where a transition from the first phase to the second phase by the directional control unit causes the hydraulic drive to move the impulse reversing element to the driven position.