| 摘要 |
PURPOSE: An oil-drain/blow-by system of an engine is provided to reduce the temperature of oil by minimizing the interruption of an oil drain and blow-by gas. CONSTITUTION: Oil drain holes are formed toward the top of a cylinder block in the cylinder block at a specific interval. A blow-by hole(220) is formed in the middle portion of the cylinder block. Pumping loss holes(230) are formed lengthwise an engine. A ladder frame(240) is mounted between the lower end of a crank benjo and an oil pan to prevent the direct collision of blow-by gas against oil after the explosion stroke of the engine.
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