| 摘要 |
PROBLEM TO BE SOLVED: To suppress the deformation of an intake tube for connecting a blow-by gas hose thereto in a blow-by gas return structure of an internal combustion engine. SOLUTION: In this blow-by gas return structure of the engine, the engine including an intake device is swingably installed on a vehicle body frame, and a blow-by gas generated in the crankcase of the engine is returned to the intake device 52 through the blow-by gas tube 73. One end of the blow-by gas tube 73 is connected to a blow-by gas discharge port 51a formed on the cylinder head 48 side of the engine, the other end thereof is connected to a connecting tube (62) installed on the engine of the air cleaner case 61 through a joint member 76, and the joint member 76 is fitted to the air cleaner case 61. Thus, the connecting tube 62 can be prevented from being deformed by the displacement of the blow-by gas tube 73. COPYRIGHT: (C)2005,JPO&NCIPI
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