| 摘要 |
PURPOSE:To make it possible to lubricate a transmission unit with a small amount of lubricating oil to aim at reducing the weight of an engine, by connecting an oil suction pipe communicated with a second lubricating oil tank to the gear mesh release side of the transmission unit, and as well by providing a discharge port opened to a first lubricating oil tank, on the mesh starting side of the transmission unit. CONSTITUTION:In a transmission device 6 comprising a clutch 3, a speed change gear unit and a differential gear unit 5, within the speed change gear unit storing 21 of a casing 20, there is provided a first lubricating oil tank 35 for wetting the lower sections of gear trains G1 through Gr with lubricating oil. Meanwhile, in a differential gear unit storing section 22 there is provided a second lubricating oil tank 37 for wetting the lower section of the differential gear unit 5 with lubricating oil. The level l1 of lubricating oil in the tank 36 is set below the top end edge of a partition wall 36 while the level l2 of lubricating oil in the tank 37 is set corresponding to the lower parts of oil seals 31, 32. Thus, due to the provision of the first and second lubrication oil tanks 35, 37 which are separated from each other in the vertical direction in the casing 20, the amount of lubrication oil is greatly reduced so that the weight of the engine may be reduced. |
