| 摘要 |
PROBLEM TO BE SOLVED: To simplify a communication passage structure between a support structure to support a gas liquid separation chamber of a blow-by gas recirculation means at a connecting tube and an intercommunicating passage structure between the connecting tube and the gas liquid separation chamber, in a suction system of an internal combustion engine where a carburetor and an air cleaner situated in the upper stream thereof are intercoupled by the connecting tube. SOLUTION: Two support parts 25 and 26 to support the blow-by gas recirculation means RB are integrally situated at the connecting tube TC to intercouple the air cleaner AC and the carburetor CA. One 25 of them is also used for a communication passage 25a to intercommunicate the connecting tube TC and the gas liquid separation chamber 29.
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