| 摘要 |
Duct structure of a supercharger for a vehicle is provided to improve durability of connection parts, pipe parts, and bellows parts, to improve manufacturability, to reduce the manufacturing cost, to reduce noise, and to improve strength of the bellows parts. In duct structure of a supercharger(200) for a vehicle, dusts(110,120) have connection parts(111,121) formed to both ends of pipe parts(112,122) and bellows parts(113,123) formed to one-ends of the pipe parts. The connection parts and the bellows parts are made of polyamid elastomer and the pipe parts are made of polyamid high impact. The bellows parts are formed in three-lined spiral shape and air passes through the bellows parts while spirally rotating. Recessed parts(113a,123a) are formed to the opposed sides of the bellows parts.
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