Abstract: An axial flow filter element including alternating flat and folded media layers forming axial channels, one end of a first group of channels being sealed and the remaining channels being sealed at the other end so fluid flowing through the element passes from channels of the first group through the filter media to channels of the second group to exit the filter; channels of the second group adjoining each side of channels of the first group spaced from the edge of the filter element so fluid flows through the entire lateral area of the first channels; an annular sealing collar adjacent an axial end face of the filter element connected to the exterior of the element to seal the element in a housing; part of the collar projecting axially beyond the end face of the element, and a frame connected to the projecting part for radially supporting the collar.

Abstract: An axial flow filter element including alternately arranged flat and folded filter media layers forming axial channels having an open cross-section, one end of each channel of a first group being sealed and the remaining channels being sealed at the other end so that fluid flowing through the element from an inflow face at one axial end must pass from a channel of the first group through the filter media to a channel of the second group to exit from a discharge face at the other axial end; a channel of the second group adjoining each side of each channel of the first group spaced from the edge of the filter element so fluid can flow through the entire lateral area of the first group of channels except for the folded edges; a peripheral seal constructed as an annular collar adjacent an axial end face of the filter element and connected by an axial section to the exterior of the filter element for sealing the inflow end from the discharge end in a housing; a part of the annular collar protruding axially beyond