| 摘要 |
PROBLEM TO BE SOLVED: To provide a blow-by gas reduction device capable of preventing damage of a breather chamber or suction passage, without deteriorating ventilation performance of blow-by gas.SOLUTION: A blow-by gas reduction device 9 includes a blow-by gas passage 10 including a cam chamber 6 of a cylinder head 3 in an engine, and a vacuum pump 16 for discharging air into the cam chamber 6 on the end surface of the cylinder head 3. In the cam chamber 6, a partition wall 26 for partitioning the cam chamber 6 into the blow-by gas passage 10 and a discharge chamber 27 communicating with a discharge hole 21 of the vacuum pump 16 is arranged. At the lower part of the partition wall 26, a communication hole 28 for communicating the discharge chamber 27 and the blow-by gas passage 10 of the cam chamber 6 is provided. |
