A ram air turbine (RAT) system can include a generator (101) configured to be turned by a RAT (103) and to output an alternating current (AC) power, a generator control unit (GCU) (105) configured to control an output of the generator, a rectifying module (107) configured to rectify the AC power…
A ram air turbine (RAT) restow system (100) includes an actuator assembly (26) with a piston (42) interposed between an upper fluid compartment (53) and a lower fluid compartment (52). The actuator assembly (26) is configured to selectively move the piston (42) between a deployed position and a…
A system includes a first AC bus (102) configured to supply power from a first generator (104). A first generator line contactor (GLC) (106) selectively connects the first AC bus to the first generator. A second AC bus (108) is configured to supply power from a second generator (110). A second GLC…
A system includes a first AC bus configured to supply power from a first AC power source. A second AC bus is configured to supply power from a second AC power source. A first transformer rectifier unit (TRU) connects a first DC bus to the first AC bus through a first TRU contactor (TRUC). A second…
A system includes a first AC bus configured to supply power from a first AC power source. A second AC bus is configured to supply power from a second AC power source. A first transformer rectifier unit (TRU) connects a first DC bus to the first AC bus through a first TRU contactor (TRUC). A second…
The invention relates to a system for synchronising energy sources coupled to an electrical grid supplying at least one electrical load of an aircraft, said system comprising; a main source of electrical energy supplying said electrical load comprising a multi-stage generator, said multi-stage…
A ram air fan assembly (10) includes a motor/bearing housing (30) that extends along a horizontal length of the ram air fan assembly (10). An inner housing assembly (32) is in fluid communication with the motor/bearing housing (30) to define a joint (65) The inner housing assembly (32) includes…
A combination hub, counterweight and crank arm for a governor assembly in a ram air turbine is a single piece steel body (2). The body (2) has a hub section (12), an annular collar section (28) that surrounds the hub section (12), a counterweight section (38) that extends out of the annular collar…
A controller (10,20) is employed in conjunction with an electrical power distribution system. The controller includes at least a first input (DC_Input) for receiving DC power from a DC power bus and a power supply circuit (14,24) connected to the first input to provide operational power to the…