Patent ID: 8201662

Claim:
A lubrication supply system for an aircraft that includes a ram air turbine that is movable between a stowed position and a deployed position, the system comprising: a motor operable, upon being energized from a power source, to rotate and supply a drive force; a pump coupled to receive the drive force from the motor and operable, upon receipt thereof, to supply lubricant to a rotating machine; a lubricant pressure sensors disposed downstream of the pump, the lubricant pressure sensor configured to sense lubricant pressure and supply a lubricant pressure feedback signal representative thereof; and a controller, wherein: the controller is adapted to receive (i) a ram air turbine position signal representative of ram air turbine position, (ii) a rotational speed signal representative of a rotational speed of the rotating machine, and (iii) the lubricant pressure feedback signal, and the controller is operable to (i) determine if the ram air turbine is in the deployed position, (ii) determine if the rotational speed of the rotating machine exceeds a predetermined speed value, and (iii) if the ram air turbine is deployed and the rotational speed of the rotating machine exceeds the predetermined speed value, at least selectively energize the motor from the power source to control lubricant pressure sensed by the lubricant pressure sensor to a predetermined lubricant pressure value.