Pleated filter element and method of forming a pleated filter element

摘要

A filter element according to the present disclosure includes a plurality of longitudinally extending pleats including outwardly radiating primary pleats (P) and inwardly radiating secondary pleats (s), with at least one secondary pleat positioned between two adjacent primary pleats. Each primary pleat (P) has a predetermined radial height (H), and each secondary pleat (s) has a radial height (h) that is less than the radial height of each primary pleat and different from the radial height of at least one other secondary pleat. A filter element according to the present disclosure provides greater filter area, an increased overall filter density, and access to more radial flow paths at the outer diameter of the filter element.