| 摘要 |
PURPOSE:To improve the lubricating performance of each portion within a crank case at what is equipped with an injector conducting the supply of fuel to a crank case side, by providing an oil supplying means that discharges and supplies oil to the spraying range of fuel injected by the injector. CONSTITUTION:A crank case 10 at a 2 cycle engine 1 is connected with an intake pipe 16, and a lead valve 14 is fitted at the vicinity of where the intake pipe 16 is connected to the crank case 10. Also, an injector 20 is provided on the upper stream side where the lead 14 of the intake pipe 16 is located, and this injector 20 is controlled by means of an electronic control unit 26 in accordance with an opening condition. In this case, it is so constituted that an oil discharge opening 40 is opened between the lead valve 14 and the injector 20, and oil is supplied from a plunger pump 22 through a passage 21. The plunger pump 22 is driven by means of a cam linking with the engine, and makes the supply amount of oil changeable according to the revolution number of the engine. |
