| 摘要 |
The suction apparatus comprises an apparatus main body which is divided into lower and upper box bodies 11 and 15. In the apparatus main body, there are stored a first duct for sucking in air from the open air, a resonator connected to the first duct, a cleaner for cleaning the sucked-in air, and a second duct 30 for sending out the air, after it has passed through the cleaner, into the internal combustion engine. A plurality of ribs 19a, which are situated in the suction openings 30a of the second duct 30 and are used to reinforce the upper box body 15, are respectively inclined at an angle conformed to the installation angle theta of the second duct 30, whereby the ribs 19a can contribute toward guiding the flow of the air.
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