Patent ID: 11938434
Assignee: MANN+HUMMEL GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A filter element comprising:
a round filter bellows comprising a filter medium laid into folds along fold edges in the filter bellows,
wherein the folds extend axially relative to a longitudinal axis between axially oppositely positioned end edges of the filter bellows, respectively,
wherein the end edges form oppositely positioned end edge surfaces;
wherein the filter bellows is arranged in a closed configuration about the longitudinal axis and encloses a hollow space;
wherein the filter bellows comprises two axially opposed end faces sealed by an end disc, respectively;
wherein the filter bellows comprises
a cut portion in at least one of the oppositely positioned end edge surfaces such that the cut portion forms a shortened fold length region of folds having a shortened fold length,

wherein a fold length of the folds with shortened fold length is substantially identical at an outer circumference and at an inner circumference of the filter bellows,
wherein the shortened fold length folds have axial end edges at the cut portion that extend perpendicular to the longitudinal axis from the outer circumference to the inner circumference of the filter bellows.