Patent ID: 6580179
Filing Date: 2003-06-17
Classification: B64D,F03D,F05B,Y02E,Y02P

Abstract:
A ram air turbine system for generating supplementary electrical power in an aircraft when the system is deployed into a air stream; the system comprising: a turbine having blades in said air stream for rotating a first shaft; a generator having a second shaft; a gearbox having a plurality of gears responsive to rotation of said first shaft for rotating said second shaft at a rate that is greater than the rate of rotation of said first shaft; said gearbox having an oil sump that is at least partially filled with oil; a pump in fluid communication with said oil sump and a conduit connected to said pump for conveying said oil to said generator for cooling said generator, wherein a heat exchanger deployed in said airstreams for removing heat from said oil and returning the oil to the pump, a cooling jacket in contact with said generator, said cooling jacket having a conduit for carrying said cooling oil, a trough in said gearbox, said trough being at least partially submerged in said oil in said sump for channeling oil to said pump.