Patent ID: 7670411

Claim:
An air-cleaner comprising: a housing attached to an induction system of an internal combustion engine; a filter element located within the housing and separating the internal of the housing into a dust side and clean side, the dust side having an introduction portion for introducing an external air into the housing, the clean side having a feeder portion for feeding a filtered air to an engine; a plate-shaped adsorption element including an adsorbent to adsorb a vaporized fuel returned from an engine side and permitting an air to pass therethrough, the adsorption element arranged to cross the direction of an air flow and fitted to occupy the entire surface of the clean side in the housing, wherein the adsorption element defines a port connecting the filter element and the feeder portion, and includes a valve disc to open or close the port, wherein the valve disc is controlled to open during air inspiration for permitting an air to flow toward the feeder portion, and wherein the valve disc includes an adsorbent, and permits an air to pass therethrough.