Patent ID: 8696782
Filing Date: 2014-04-15
Classification: B01D,F02M

Abstract:
1. An air filter element for exchangeable installation in a filter housing in which the filter element is flown through by a fluid to be filtered, the filter element comprising: a fluid flow intake side; a fluid outflow side; wherein said outflow side is spaced apart axially from said inflow side; at least two radially nested filter bellows; wherein at least one filter bellows of said at least two filter bellows is to be flown through in a radial direction; wherein an annular flow space is formed radially between said nested filter bellows, said annular flow space in fluid flow communication with an end face of the filter element; wherein each filter bellows is embodied as a star-shaped filter with filter folds arranged in a star shape; a sealing ring arranged on at least one end face of said filter element, said sealing ring operable for engaging an interior of said filter housing to separate an unfiltered side from a filtered side of said filter element; wherein a cover disk closes over an interior of a radially inwardly one of said nested filter bellows, said cover disk extending radially across said interior preventing fluid in the interior from flowing axially by said cover disk; wherein front edges of filter media folds of a first one of said at least two filter bellows at one end face are completely covered by a cover ring; wherein front edges of filter media folds of said at least two filter bellows are completely covered at an opposite end face with a second cover ring preventing axial flow from passing through filter media fold front edges at said opposite end face; wherein a portion of said filter folds of one of said at least two filter bellows is immediately contacting against and adhesively connected and tacked to immediately neighboring filter folds of a different one of said at least two filter bellows at an axial end face of said filter bellows.