| 摘要 |
In a closed breather system which returns blow-by gas 1 extracted, through a gas extraction tube 5, from an engine 3 to an intake tube 7 through a ventilator 2 for separation and recovery of oil mist, a three-way valve 13 is incorporated in the gas extraction tube 5 to temporarily switch a passage of the three-way valve 13 only while the engine 3 remains cold so as to release the blow-by gas 1 to the atmosphere. |
