Patent ID: 9511317
Filing Date: 2016-12-06
CPC Classification: B01D,F02M,Y10T

Claim Text:
1. An air filter system for intake air of an internal combustion engine, the air filter system comprising: a housing having a longitudinal axis, the housing having a first front face and a second front face; a cover closing off the first front face of the housing; an inlet arranged on the housing and adapted to feed a medium to be filtered into the housing; an outlet arranged on the housing and adapted to discharge the medium that has been filtered from the housing; a replaceable filter element arranged in the housing; the filter element comprising a filter body comprising a first end face and a second end face opposite the first end face; the filter element further comprising an open first end plate arranged at the first end face and a second end plate arranged at the second end face; a support tube arranged concentrically about the longitudinal axis in the housing, the support tube comprising a first end and a second end opposite the first end, wherein the first end is attached to the housing; wherein the support tube is arranged in an interior of the filter element and radially supports the filter body of the filter element; wherein the second end plate of the filter element is resting on the second end of the support tube and is resting with anti-rotation action on an inner cover contour of the cover; wherein the second end plate consists of a polyurethane foam or an elastomer.