| 摘要 |
PROBLEM TO BE SOLVED: To provide a closed breather system capable of avoiding a situation beforehand in which condensation water is generated and stays in a system.SOLUTION: A closed breather system is provided for returning blow-by gas 1 extracted via a degassing pipe 5 from an engine 3 to an intake pipe 7 while separating and collecting an oil mist via a ventilator 2, and is constituted so that the blow-by gas 1 can be released to the atmosphere by temporarily switching a flow passage of a three-way valve 13 only when the engine 3 is cold, by arranging the three-way valve 13 in the middle of the degassing pipe 5. |
