BLOWBY GAS BREATHER OF ENGINE

摘要

PROBLEM TO BE SOLVED: To prevent leakage of oil to an periphery of an engine, by reducing internal pressure of a crank case of the engine using a blowby gas breather. SOLUTION: In the blowby gas breather of the engine, blowby gas in the crank case 3 is sucked by using intake pressure in an inlet manifold 2 of a cylinder head 1; and a breather valve 4 closed by intake pressure at a time of a high rotational speed to control and keep the internal pressure of the crank case 3 negative.