Planetary gear train for the hovering possible aircraft

摘要

PROBLEM TO BE SOLVED: To provide a planetary gear train which prevents lubricant injection from being disturbed because a space for an oil flow from a nozzle is extremely restricted due to a nozzle arrangement at two specified positions to a sun gear and the size of the planetary gear.;SOLUTION: A planetary gear train 6 for a hovering airplane has a sun gear 7 which rotates around a first shaft line A and has an external gear 8, a ring gear 9 which has an internal gear 10 and the same shaft as the first shaft line, and is arranged and fixed outside the sun gear in the radial direction, a plurality of planetary gears 11 having external gears 12 are inserted between the sun gear and the ring gear and engaged with them, and rotates around a second shaft line B and revolves around the first shaft line, and a lubricant supply means 16 which has a plurality of nozzles 17 arranged around the first shaft line and the sun gear to generate a flow F of the lubricant in which the flow is an annular flow.;COPYRIGHT: (C)2013,JPO&INPIT