| 摘要 |
PROBLEM TO BE SOLVED: To prevent the internal rusting of a fuel injection system part by providing a fuel tank mounted on an engine body through a damper and a premix pump mounted on the fuel tank, and premixing a part of the oil for lubricating the engine with fuel. SOLUTION: The fuel within a vapor separator tank 29 is preloaded by a fuel preload pump 30 and pressurized by a high pressure fuel pump 32. The excess of this high-pressure fuel exceeding a set pressure is returned into the vapor separator tank 29 by a pressure regulating valve 35, and only the necessary high pressure fuel portion is supplied to a fuel supplying rail 33. An oil pump 21 is driven by the rotation of a crankshaft, and oil is supplied from an oil tank 51 to an intake passage 19 to lubricate the engine inner part. A premix oil pump 53 is driven to supply the oil in the oil tank 51 to the vapor separator tank 29 through a filter 52 and a check valve 54, and the oil is premixed to fuel.
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