Filter cartridges; air cleaner assemblies; housings; features; components; and, methods
According to the present disclosure, air cleaner assemblies, components, features, and methods relating thereto, are described. These features, in part, relate to configuration of a preferred seal arrangement and seal surface of the cartridge. Particular arrangements are shown, in which: the filter cartridge includes a seal arrangement having a axial pinch seal surface with a projection/recess contour including at least one projection thereon; and, the cartridge includes a seal contour projection stabilizing portion at a location in perimeter alignment with the portion of the seal pinch arrangement including the first housing engagement projection. Additional features are included that relate to clean air separator section tubes of a precleaner arrangement secured to a cartridge. These features can be used in cartridges including features outlined above, or in alternative cartridges. Additional features of air cleaner arrangements and filter cartridges in accord with the above are described.
1. An air filter cartridge comprising:
(a) a filter media pack comprising first and second, opposite, flow ends with media extending therebetween;
(b) a housing seal arrangement including a seal member;
(i) the housing seal arrangement is a pinch seal arrangement having an axial pinch seal with: an outer peripheral surface; and, a first pinch seal housing engagement surface;
(ii) the first pinch seal housing engagement surface is a contoured axial pinch seal surface with at least a first housing engagement projection thereon; and
(iii) the first housing engagement projection including a first pinch seal projection extending further toward the second flow end than portions of the contoured axial pinch seal surface at immediate, opposite, peripheral, sides of the first housing engagement projection; and,
(c) an inlet preform positioned on the filter media pack;
(i) the inlet preform including a cap extending over the first flow end of the media pack;
(ii) the cap having a plurality of precleaner, separator tube, clean air inlet sections thereon, providing for flow through the preform and to the media.
2. An air filter cartridge according to claim 1 wherein:
(a) the plurality of clean air inlet sections are arranged in an array having 180° rotational symmetry.
3. An air filter cartridge according to claim 1 wherein:
(a) the plurality of clean air inlet sections are arranged in an array having 90° rotational symmetry.
4. An air filter cartridge according to claim 1 wherein:
(a) the seal member is molded-in-place with a portion of the inlet preform embedded therein.
5. An air filter cartridge according to claim 1 wherein:
(a) the inlet preform defines an air flow open area comprising at least 5% of an end area of the first flow end of the filter media pack.
6. An air filter cartridge according to claim 1 wherein:
(a) the inlet preform has an open area comprising at least 10% of an end area of the first flow end of the filter media pack.
7. An air filter cartridge according to claim 1 wherein:
(a) the inlet preform has an open area comprising at least 15% of an end area of the first flow end of the filter media pack.
8. An air filter cartridge according to claim 1 wherein:
(a) the inlet preform is positioned to space the cap clean air inlet sections at least 8 mm from the media pack at the first flow end.
9. An air filter cartridge according to claim 1 wherein:
(a) the inlet preform is positioned to space the cap clean air inlet sections at least 10 mm from the media pack at the first flow end.
10. An air filter cartridge according to claim 1 wherein:
(a) the air inlet sections have circular inner and outer cross-sectional shapes.
11. An air filter cartridge according to claim 1 including:
(a) a receiver recess positioned between a portion of the pinch seal arrangement and the media pack.
12. An air filter cartridge according to claim 1 wherein:
(a) the media pack is a coiled media arrangement.
13. An air filter cartridge according to claim 1 wherein:
(a) the media pack has a circular outer perimeter.
14. An air filter cartridge according to claim 1 wherein:
(a) the media pack has a non-circular outer perimeter.
15. An air filter cartridge according to claim 14 wherein:
(a) the media pack has an oval outer perimeter.
16. An air filter cartridge according to claim 1 including:
(a) an outlet preform having a portion surrounding the media pack.
17. An air filter cartridge according to claim 16 wherein:
(a) the outlet preform extends from the seal arrangement to the second flow end of the media pack.
18. An air filter cartridge according to 16 wherein:
(a) the outlet preform includes a portion having the housing seal arrangement secured thereto.
19. An air filter cartridge according to 1 wherein:
(a) the media being closed to flow of air, passing into the first flow end, from exiting the second flow end without filtering flow through the media.
20. An air filter cartridge according to 1 wherein:
(a) the contoured axial pinch seal surface comprises a plurality of the first housing engagement projections.
21. An air filter cartridge according to 20 wherein:
(a) the contoured axial pinch seal surface comprises a perimeter extension, and the first housing engagement projections comprise no more than 50% of the perimeter extension.
22. An air filter cartridge according to 20 wherein:
(a) the contoured axial pinch seal surface comprises a perimeter extension, and the first housing engagement projection comprise no more than 30% of the perimeter extension.
23. An air cleaner assembly comprising:
(a) a housing including: a body; an access cover; an air flow inlet; and, an air flow outlet;
(b) a precleaner;
(i) the precleaner including an array of separator tube centrifugal separator inlet sections positioned on the access cover; and,
(c) an air filter cartridge operably positioned in the housing; the air filter cartridge comprising:
(i) a filter media pack comprising first and second, opposite, flow ends with media extending therebetween;
(ii) a housing seal arrangement including a seal member;
(A) the housing seal arrangement is a pinch seal arrangement having an axial pinch seal with: an outer peripheral surface; and, a first pinch seal housing engagement surface;
(B) the first pinch seal housing engagement surface is a contoured axial pinch seal surface with at least a first housing engagement projection thereon; and
(C) the first housing engagement projection including a first pinch seal projection extending further toward the second flow end than portions of the contoured axial pinch seal surface at immediate, opposite, peripheral, sides of the first housing engagement projection; and,
(ii) an inlet preform positioned on the filter media pack;
(A) the inlet preform including a cap extending over the first flow end of the media pack;
(B) the cap having a plurality of precleaner, separator tube, clean air inlet sections thereon, providing for flow through the preform and to the media, wherein the clean air inlet sections on the cartridge projecting into the separator tube centrifugal separator inlet sections.
24. An air cleaner assembly according to 23 wherein:
(a) the media being closed to flow of air, passing into the first flow end, from exiting the second flow end without filtering flow through the media.