| 摘要 |
PROBLEM TO BE SOLVED: To provide an intake manifold for an internal combustion engine which can improve combustion efficiency by suppressing the influence to intake flow due to the introduction of blow-by gas. SOLUTION: A gas introduction port 21 of blow-by gas to an intake pipe 12 is opened in a pipe wall 12a in a downstream part on an inner corner side of a first bend section 18, opened in a position deviated in a width direction of the pipe wall 12a on the inner corner side in the intake pipe 12 having substantially elliptical flow path cross section, and opened in the pipe wall 12a of a part facing a low-speed area of intake flow in the intake pipe 12. COPYRIGHT: (C)2010,JPO&INPIT
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