| 摘要 |
PURPOSE:To improve the output of an engine through provision of enough a high charging efficiency, by a method wherein snow, rain drop, and sand dust are prevented from entering an air cleaner, and the open air is fed to an engine cylinder. CONSTITUTION:Notches 15 in first seal members 13 and 14 are positioned ahead of an air suction port 18 of a hose 17 of an air cleaner 5, and a second seal member 16 is located in front of the notches 15. A passage, leading through the first seal members 13 and 14 from the second seal member 16 to the air suction port 18, has a zigzag route in cross section and runs to above. Thus, the open air flows along a flat-shaped zigzag route, formed, as seen from the top, by the second seal member 16 and the notches 15 in the first seal members 13 and 14, and beforesaid zigzag route in cross section, and snow, rain drop, and sand dust can be prevented from entering the air cleaner.
|
