Filter Device, Especially Liquid Filter

摘要

A filter device comprises a hollow cylindrical filter element in a filter housing. The fluid that is to be purified is to radially flow through the filter element. The interior of the filter element forms an axial flow chamber for the fluid. An end plate is arranged on the front side of the filter element. An annular neck, onto which a sealing element is injection-molded, is connected to the end plate.

主权项

1. A liquid filter device for filtering oil or fuel, comprising:
a hollow cylindrical filter element (2) for arrangement in a filter housing (3) that is radially to be flowed through by the fluid to be purified; wherein an open interior of said filter element (2) forms an axial flow space for said fluid in said interior; said filter element further comprising
a terminal disk (4) arranged on an axial end face of the filter element (2), the terminal disk having an open central portion opening through said end disk into said interior;a first axially projecting annular socket (6) having a first axial end secured onto said terminal disk, said first annular socket including an axially outwardly projecting annular wall (6) circumferentially surrounding the open central portion; anda sealing element (8) arranged on said first annular socket over at least a portion of said annular wall, said sealing element operative to form a seal between said terminal end disk (4) and said filter housing to seal between a raw side and a clean side of said filter element;wherein said sealing element comprises sealing material (8) injection-molded onto said first axially projecting annular socket (6);a second axially projecting annular socket (9) having an axial end secured onto said terminal disk (4) and arranged concentrically to said first socket (6), said second annular socket (9) including an axially outward projecting annular wall surrounding the open central portion; anda sealing element (9) arranged on said second annular socket over at least a portion of said annular wall, said sealing element operative to form a seal between said terminal end disk (4) and said filter housing;wherein said sealing element is injection-molded onto said second annular socket.