| 摘要 |
<p>There is provided an air cleaner that is capable of suppressing or reducing malfunctions and problems caused by mixed fuel that back flows from a carburetor, thereby prolonging filter life, reducing filter maintenance frequency, etc. The air cleaner comprises: a fuel accumulation part formed near, and so as to surround, a cleaner outlet provided in a cleaner bottom wall located towards the carburetor, the fuel accumulation part being adapted to accumulate mixed fuel that back flows from the carburetor; a back flow guide member that guides the mixed fuel that back flows into the air cleaner via the cleaner outlet not towards a filter but towards the fuel accumulation part; and a plurality of return flow paths, each of which has one end that is in communication with the fuel accumulation part and another end that is in communication with the cleaner outlet so as to return the mixed fuel that accumulates in the fuel accumulation part back towards the carburetor utilizing intake negative pressure, wherein the plurality of return flow paths are provided in a radial fashion about the cleaner outlet and each comprise a flow path forming plate part whose upper end surface comprises a sloped surface that slopes downward towards the cleaner outlet.</p> |
