US Patent 7608137 Air cleaner and fuel adsorbent member

A fuel adsorbent member 16 is arranged in a housing 11 at a position downstream from a filter element 14. The fuel adsorbent member 16 adsorbs evaporative fuel. An air cleaner is configured in such a manner that, when receiving a backfire pressure P1 from an engine, the fuel adsorbent member 16 is held in the state secured to the housing 11. Specifically, release holes 22 are defined in a portion of the fuel adsorbent member 16 for releasing the backfire pressure P1 through the release holes 22.