| 摘要 |
PROBLEM TO BE SOLVED: To inhibit film-shape oil separated from blow-by gas in an oil separator chamber from being scattered again and being taken out of the oil separator chamber with the blow-by gas. SOLUTION: An oil mist treatment device 39 is provided with the oil separator chamber 41 provided in a middle of a blow-by gas passage 36 connecting an intake passage and a crank chamber of an engine and a mist separation part separating oil mist when blow-by gas flows in the oil separator chamber 41. The mist separation part is provided with a restriction wall 45 having a restriction hole 48 and an inertial impingement wall 46 provided on a downstream side of the restriction wall 45. The oil mist treatment device 39 is provided with an air introduction part 52 introducing air to the downstream side of the mist separation part in the oil separator chamber 41. The air introduction part 52 includes an air introducing hole 53 opening roughly opposing to flow of blow-by gas after passing through the mist separation part. COPYRIGHT: (C)2007,JPO&INPIT
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