Patent ID: 9586168
Date: 2017-03-07
CPC Classifications: B01D,F01N,F02M

Claim:
1. A flat filter element for insertion into a filter housing, the filter element comprising: a raw side and an opposing clean side, wherein flow direction of fluid to be filtered is from the raw side to the clean side; a pleated filter medium folded in a zigzag shape into a course of zigzag shaped pleat folds forming a filter bellows, the pleated filter medium continuing from a first outer fold forming an upper end face of the filter bellows to a last outer fold forming a lower end face of the filter medium: a sealing section adapted to seal the flat filter element relative to a filter housing; at least one carrier plate that is adhesively secured directly onto or welded directly onto the zigzag filter medium edge of the zigzag shaped pleat folds on the first side end face or second side end face of the filter medium; at least one elongated support element arranged inbetween the raw end face and the clean end face and elongated in a direction traverse to the flow direction, each of the at least one elongated support element arranged directly on secured directly onto the at least one carrier plate, the at least one elongated support element elongated in a plane parallel to the at least one carrier plate, the at least one elongated support element having: wherein the first and second elongated support element sections are configured to contact and support in opposite directions traverse to the inflow direction against an interior of the filter housing and support the filter element on the interior of the filter housing.