| 摘要 |
<p>An intake device includes an air filter (21) for filtrating suction air sucked into an internal combustion engine (10), an intake manifold (100) made of resin, for introducing the suction air filtrated by the air filter (21) into an intake port (10a) of the engine, and a case main body (12) made of resin and a cap portion (13) made of resin. The air filter (21), the intake manifold (100), a fuel injection valve (40), and so forth, are accommodated in the case main body (12) and the cap portion (13), and the case main body (12) and the cap portion (13) have a resin double-wall structure having inside walls (14 and 15) and outside walls (16) and (17). Air layers (18 and 19) for interrupting sound and heat are formed between the inside walls (14 and 15) and the outside walls (16 and 17).</p> |
