| 摘要 |
A self cleaning filter for a small internal combustion engine ( 1 ) is disclosed. The filter ( 16, 36, 46 ) is generally rectangular and is located closely adjacent the air exit region of the engine's fan ( 2 ). The longitudinal axis of the filter is generally aligned with the direction of air flow. The filter can be flat ( 16 ), curved ( 36 ) or inclined towards the air flow ( 46 ). The arrangement permits a more compact configuration for the engine ( 1 ).
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