Experimental Study on Multi-attitude Oil Supply Structure

The high-maneuverability and multi-attitude flight of the aircraft poses new challenges to the engine lubrication system Achieving continuous oil supply and lubrication during high maneuverability flights is essential for improving engine safety. In this paper, the effects of inlet flow, working attitude angle and lubricating oil level height on the ejection capacity of the oil supply structure are analyzed. And the ventilation and oil-oil separation performance of the oil supply structure are tested. The experimental lubricating oil flow range is 10~45L/min, the air flow range is 6~37SL/min, and the attitude angle range is -35°~35°. The injection flow rate of the multi-attitude oil supply structure ranges from 0.06 to 0.12L/min, the ventilation efficiency is about 90%, and the maximum oil and gas separation efficiency is 95%.