| 摘要 |
PROBLEM TO BE SOLVED: To enable prevention of oil from direct penetration from the outside of a breather chamber to the interior of the chamber. SOLUTION: In the breather chamber 2 provided with a relief valve 1 to escape a surplus pressure to an external part, the oil shielding structure is constituted such that the breather chamber is provided with a rib 4 formed at a lower wall 21 of the breather chamber and surrounding an oil return groove 3 through which oil gathering in the breather chamber is returned to the outside of the chamber, and a bent part 61 being a part of a plate 6 constituting a part of the side wall of the breather chamber is overlapped in the vicinity of the oil return groove 3 outside the breather chamber. COPYRIGHT: (C)2006,JPO&NCIPI
|
