Air cleaner arrangement with end support for cartridge; components; and, methods
An air cleaner assembly is described and shown which includes a housing having an air flow inlet, an air flow outlet and a housing body and access cover. A serviceable filter cartridge is positioned within the housing. A projection/receiver arrangement providing for engagement between the cartridge and the housing is provided. The projection/receiver arrangement can be configured in a manner that inhibits undesired motion of the cartridge, once installed. An example projection/receiver arrangement is provided, which includes a serpentine receiving groove on the access cover and a serpentine projection on the filter cartridge. Example filter cartridge features are described.
1. An air filter cartridge comprising:
(a) filter media;
(b) a first end piece having a filtered air flow exit aperture therethrough;
(c) a housing seal arrangement positioned on the first end piece; and,
(d) a second end piece opposite the first end piece;
(i) the second end piece being closed and having a projection arrangement thereon and having a recessed interior surface section;
(ii) the projection arrangement including a wall having an outer surface and an inner surface, the outer surface comprising a plurality of radially outwardly directed convex sections; and
(iii) the wall surrounding the recessed interior surface section.
2. An air filter cartridge according to claim 1 wherein:
(a) the housing seal arrangement comprises a radially inwardly directed housing radial seal.
3. An air filter cartridge according to claim 1 wherein:
(a) the outer surface of the wall comprises a plurality of alternating radially directed convex sections and concave sections.
4. An air filter cartridge according to claim 3 wherein:
(a) the outer surface of the wall comprises 6-10 of the concave sections and 6-10 of the convex sections, around the recessed interior surface section.
5. An air filter cartridge according to claim 1 wherein:
(a) the inner surface of the wall comprises 6-10 concave sections and 6-10 convex sections, around the recessed interior surface section.
6. An air filter cartridge according to claim 1 wherein:
(a) the wall of the projection arrangement comprises the inner surface having a smallest inside dimension thereacross of at least 15 mm.
7. An air filter cartridge according to claim 1 wherein:
(a) the wall of the projection arrangement comprises the inner inside surface has a smallest inside dimension thereacross of at least 20 mm.
8. An air filter cartridge according to claim 1 wherein:
(a) the radially directed housing seal arrangement comprises a radially outwardly directed housing radial seal.
9. An air filter cartridge according to claim 1 wherein:
(a) the media is pleated.
10. An air filter cartridge according to claim 9 wherein:
(a) the media is cylindrical.
11. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement projects in a direction away from the filtered air flow exit aperture.
12. An air filter cartridge according to claim 1 wherein:
(a) the housing seal arrangement comprises a radially inwardly directed housing radial seal;
(b) the projection arrangement projects in a direction away from the filtered air flow exit aperture;
(c) the wall of the projection arrangement includes an outer surface comprising a plurality of alternating convex and concave sections;
(d) the wall of the projection arrangement includes an inner surface comprising a plurality of alternating convex and concave sections; and,
(e) the media is pleated in extension around an open interior.
13. An air filter cartridge according to claim 12 wherein:
(a) the wall of the projection arrangement includes an outer surface comprising 6-10 concave sections and 6-10 convex sections; and,
(b) the wall of the projection arrangement includes an inner surface comprising 6-10 concave sections and 6-10 convex sections.
14. An air filter cartridge according to claim 1 wherein:
(a) the housing seal arrangement comprises a radially outwardly directed housing radial seal;
(b) the wall of the projection arrangement includes an outer surface comprising a plurality of alternating convex and concave sections;
(c) the wall of the projection arrangement includes an inner surface comprising a plurality of alternating convex and concave sections; and,
(d) the media is pleated in extension around an open interior.
15. An air filter cartridge according to claim 14 wherein:
(a) the outer surface comprises 6-10 concave sections and 6-10 convex sections; and,
(b) the inner surface comprises 6-10 concave sections and 6-10 convex sections.
16. An air filter cartridge according to claim 15 wherein:
(a) the media is cylindrical.
17. An air filter cartridge according to claim 15 wherein:
(a) the projection arrangement projects in a direction away from the filtered air flow exit aperture.
18. An air filter cartridge according to claim 1 wherein:
(a) the housing seal arrangement comprises a radially inwardly directed housing radial seal;
(b) the surface of the wall comprises a plurality of alternating radially directed convex and concave sections.
19. An air filter cartridge according to claim 18 wherein:
(a) the wall of the projection arrangement includes an outer surface comprising 6-10 concave sections and 6-10 convex sections; and,
(b) the wall of the projection arrangement includes an inner surface comprising 6-10 concave sections and 6-10 convex sections.
20. An air filter cartridge according to claim 1 wherein:
(a) the wall surrounding the recessed interior surface section comprises a continuous wall.
21. An air filter cartridge according to claim 1 wherein:
(a) the wall inner surface has a serpentine surface.
22. An air filter cartridge according to claim 1 wherein:
(a) the wall outer surface has a serpentine surface.
23. An air filter cartridge according to claim 1 wherein:
(a) the wall surrounding the recessed interior surface is not hollow.
24. An air filter cartridge according to claim 1 wherein:
(a) the housing seal arrangement comprises a radially directed housing seal arrangement.