| 摘要 |
For an aircraft jet engine, a pumped oil delivery system for delivering oil to moving parts includes a scoop delivery pump 10 and an accumulator oil reservoir 12 to maintain oil feed to type pump at all times. The system includes a first line 24 to feed oil from the scoop pump to the oil reservoir, a second line 26 to return oil from the oil reservoir to the scoop pump, and air pressure means for pressurising the oil within the oil reservoir so as to maintain a continuous feed of oil to the pump. The system further includes line means 18 for delivering oil from the scoop pump to each said moving part and line means 20, 22 for returning oil from said moving part to the scoop pump. Moving parts include a self scavenging gear box utilising the centrifugal pumping action of its gears to return oil to the scoop pump, and self scavenging bearing chambers using centrifugal effects of their rotating parts also to return oil to the scoop pump. |
