抄録
For efficient cooling of gear teeth just after meshing, feeding of lubricant to the finish of engagement region of a pair of helical gears is simulated in water with injecting metal particles which are regarded as lubricant. The movement of particles is 3-dimensionally visualized using a monocular imaging system having cylindrical lens and based on astigmatism. Governed by Reynolds' similarity law, gears were operated one tenth slower than in air. The result of visualization : 3-D behavior of tracer particles is presented. It is confirmed that the behavior is dependent on axial position of feeding and there is peculiar position where the gear pair refuses lubricant. Therefore forced injection or oblique feeding is recommended for such a position.
