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) media surrounding an open interior and having first and second, opposite, ends;
(b) first and second, opposite end caps including: an end cap positioned on the media first end; and, an end cap positioned on the second end of the media; and,
(i) the end cap on the first end of the media being an open end cap;
(ii) the end cap on the second end of the media being a closed end cap; and,
(c) an axial projection arrangement positioned on the second end cap and projecting away from the first end cap;
(i) the axial projection arrangement has a radially inner facing surface that faces toward an interior and open space, and a radially outer facing surface facing away from the interior and open space;
(ii) the radially inner facing surface and the radially outer facing surface each have a non-circular shape in a direction around the interior and open space;
(iii) the projection arrangement does not form a series of straight lines on the inner surface or on the outer surface in a direction around the interior and open space; and
(iv) the projection arrangement has a depth of extension of at least 6 mm away from an adjacent portion of the second end cap in a direction away from the first end cap.
2. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement has a minimum largest external dimension of at least 35 mm and a smallest internal dimension of at least 15 mm.
3. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement radially inner facing surface comprising a plurality of radially directed convex sections.
4. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement outer facing surface comprises a plurality of alternating radially directed convex and concave sections.
5. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement inner facing surface comprises a plurality of convex sections.
6. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement inner facing surface comprises a plurality of alternating radially directed convex and concave sections.
7. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement includes a surface comprising at least five each of alternating concave and convex sections, around a center.
8. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement includes a surface comprising 6-10 concave sections and 6-10 convex sections, around a center.
9. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement includes:
(i) an outer surface comprising at least five each of alternating concave and convex sections, around a center.
10. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement includes an outer surface comprising at least 6-10 each of alternating concave and convex sections, around a center.
11. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement includes:
(i) an outer surface comprising 6-10 concave sections and 6-10 convex sections, around a center; and,
(ii) an inner surface comprising 6-10 concave sections and 6-10 convex sections around a center.
12. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement comprises a projection with an inside surface having a smallest inside dimension thereacross of at least 15 mm.
13. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement comprises a projection with an inside surface having a smallest inside dimension thereacross of at least 20 mm.
14. An air filter cartridge according to claim 1 wherein:
(a) the projection arrangement comprises a projection with an inside surface having a smallest inside dimension thereacross within the range of 30-90 mm.
15. An air filter cartridge according to claim 1 wherein:
(a) the projection has an end tip; and,
(b) adjacent the end tip the projection has inner and outer surfaces;
(i) a thickness of the projection, in a direction between the inner and outer surfaces, not exceeding 10 mm in at least a portion of the projection.
16. An air filter cartridge according to claim 1 including:
(a) a radially inwardly directed housing seal arrangement.
17. An air filter cartridge according to claim 1 including:
(a) a radially outwardly directed housing seal arrangement.
18. An air filter cartridge according to claim 1 wherein:
(a) the housing seal arrangement comprises molded-in-place foamed polyurethane.
19. An air filter cartridge according to claim 1 wherein:
(a) the media is pleated.
20. An air filter cartridge according to claim 1 wherein:
(a) the media is cylindrical.
21. An air filter cartridge according to claim 1 wherein:
(a) the media has a conical taper.
22. An air filter cartridge according to claim 1 wherein:
(a) the wall surrounding the recessed interior surface section comprises a continuous wall.
23. An air filter cartridge according to claim 1 wherein:
(a) the wall inner surface has a serpentine surface.
24. An air filter cartridge according to claim 1 wherein:
(a) the wall outer surface has a serpentine surface.
25. An air cleaner assembly comprising:
(a) an air cleaner housing including an air flow inlet and an air flow outlet;
(i) the air cleaner housing defining a housing interior and comprising a housing body and an access cover;
(b) an air filter cartridge removably positioned within the interior of the housing; the filter cartridge comprising:
(i) filter media;
(ii) a first end piece having a filtered air flow exit aperture therethrough;
(iii) a radially directed housing seal arrangement positioned on the first end piece; and,
(iv) a second end piece opposite the first end piece; the second end piece being a closed end piece; and,
(c) a projection/receiver arrangement including:
(i) a first member, on the second end piece of the cartridge, comprising a projection arrangement including a plurality of radially outwardly directed convex sections; and,
(ii) a second member comprising a receiver member positioned on the housing and receiving, projecting therein, the first member on the second end piece of the cartridge.