Patent ID: 7691188

Claim:
An adsorption element for adsorbing gases and vapors from a gas atmosphere in an intake tract of an internal combustion engine; said adsorption element comprising an adsorption medium disposed within a wall of a flow cross section which carries intake air such that the intake air flows along the adsorption medium, wherein said adsorption medium is pleated to create folds extending in longitudinal direction of the flow of intake air, a support grid by which the adsorption medium is reinforced that is disposed adjacent to an inward facing surface of the adsorption medium and parallel to each of the pleat surfaces of the folds, the support grid being folded together with the adsorption medium along the pleat surfaces, and an axial end of said adsorption element sized and configured to supportively rest against a shoulder formed on a wall of said intake tract, cooperation of said axial end and shoulder operative to prevent said adsorption medium from being carried along said intake tract by intake air flow.