To separate oil mist from blowby gas efficiently even if a particle size of the oil mist is small.
A collision wall 5 is provided on a blowby flow channel 4 such that a stream of blowby gas is interrupted, to separate the oil mist in the blowby gas by colliding the blowby gas with the collision wall 5. The blowby flow channel 4 includes, on the upstream side of the collision wall 5, two blowby introducing channels 7, 8 which are independent to each other, and a blowby merging channel 9 with which downstream side ends 7b, 8b of the blowby introducing channels 7, 8 are connected. The blowby introducing channels 7, 8 are connected with the blowby merging channel 9 such that the blowby gas flowing out from the respective downstream side ends 7b, 8b collides with each other. Thereby, oil mist having a large particle size by colliding with each other is introduced to the collision wall, and the oil mist is efficiently separated from the blowby gas.
SAKAI TAKAYUKI
| JP2003120248A | 2003-04-23 | |||
| JP2005023824A | 2005-01-27 |
Hiromichi Kobayashi
Tomioka Kiyoshi
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