| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of part items so as to carry out miniaturizing and right a weight, and avoid leakage of oil so as to carry out lubrication forcibly by spline-joining a pump rotor with a drive gear, and using a pump housing for the boss. SOLUTION: An oil pump 10 is built into a pump housing 11 utilizing the counter driving gear 34 side of a boss 35 for rotatably supporting a counter shaft 33, it is fastened to a pump rotor 12 which is spline-moined with a counter driving gear 34 and the pump housing 11 by a bolt 24, and it is assembled by a pump cover 15 confined in the pump housing 11. An outer spline 38 is cut in a boss 37 projected to a recess part 36 by the counter driving gear 34, the inner spline 21 in engaged with the spline 38, and an inner rotor 14 is spline- joined with the counter drive gear 34. It is thus, possible to reduce the number of parts so as to carry out miniaturizing, and right a weight. It is also possible to avoid leakage of oil so as to carry out lubrication forcibly. |
