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US 11,123,676 B2Granted
Seal arrangement for filter element; filter element assembly; and, methods
AssigneeDonaldson Company, Inc.
InventorsKevin Schrage, Troy Murphy, Donald Raymond Mork
Life of this patent
Estimating the term…
Abstract
A filter element arrangement is provided which includes a media pack comprising Z-filter media, a preform and an overmold sealing a portion of the interface between the preform and the media pack, and also forming an air cleaner seal for the filter element. The overmold preferably comprises molded, foamed, polyurethane. A variety of media pack shapes can be used.
Claims22
An air filter element comprising:
- (a) a media pack including a first flow face and an opposite second flow face, an axial direction extending from the first flow face to the second flow face, and a periphery extending between the first flow face and the second flow face;
- the media pack defining:
- (i) a plurality of first flutes open at the inlet end of the media pack to passage of air to be filtered therein;
- and
- (ii) a plurality of second flutes open to passage of filtered air therefrom at the outlet end of the media pack;
- (b) a preform comprising a housing seal support section, and a media face cross-piece arrangement, wherein:
- (i) the housing seal support section extends axially away from the first flow face in a direction away from the media pack;
- (ii) the housing seal support section includes a radially outwardly facing surface and a radially inwardly facing surface;
- and
- (ii) the media face cross-piece arrangement extends across the first flow face;
- and
- (c) an overmold formed of a sealing material having:
- (i) a first portion sealing an interface between the preform and the media pack, and extending at least 5 mm from the first flow face toward the second flow face over the periphery of the media pack;
- (ii) a second portion oriented to form an air cleaner seal, between the filter element and an air cleaner, in use;
- (iii) the second portion being located along the radially outwardly facing surface of the housing seal support section, and wherein the radially inwardly facing portion of the housing seal support section includes a portion free of the overmold thereon;
- and
- (iii) the first and second portions of the overmold being integral with one another.
14 more elements
An air filter element comprising:
- (a) a media pack including opposite inlet and outlet ends;
- the media pack defining:
- (i) a set of inlet flutes open at the inlet end of the media pack to passage of air to be filtered therein;
- and,
- (ii) a set of outlet flutes open to passage of filtered air therefrom at the outlet end of the media pack;
- and
- (b) a preform positioned adjacent a first one end of the inlet and outlet ends of the media pack;
- (c) an overmold formed of a sealing material having:
- (i) a first portion sealing an interface between the preform and the first end of the media pack at which the preform is positioned;
- (ii) a second portion oriented to form an air cleaner seal, between the filter element and an air cleaner, in use, and
- (iii) the first and second portions of the overmold being integral with one another.
8 more elements
Dependencies are inferred from the claim text.