Patent ID: 6540806
Filing Date: 2003-04-01
Classification: B01D,F02M

Abstract:
A filter comprising a housing having an inlet and an outlet for a fluid medium to be filtered, said housing comprising two housing shells and an axially extending support tube with a lattice structure, the support tube and one of said housing shells being produced in one piece as an injection molded plastic part, and an annular filter cartridge disposed on said support tube inside said housing such that fluid from said inlet must pass through said filter cartridge to reach said outlet, wherein said support tube and said filter cartridge have mating conical configurations, and wherein the lattice structure of the conical support tube includes axial and circumferential struts and an offset between two adjacent circumferential struts due to the conical configuration of the support tube so that the conical support tube is free of undercuts along its axial length.