Air filter cartridges; air cleaner assemblies; housings; features; components; and, methods

Patent metadata

Field	Value
Publication number	US-9320997-B2
Application number	US-201514855860-A
Country	US
Kind code	B2
Filing date	Sep 16, 2015
Priority date	Jun 28, 2013
Publication date	Apr 26, 2016
Grant date	Apr 26, 2016

Abstract

According to the present disclosure, features, components and techniques useable for providing air cleaner arrangements are provided. Many of the features relate to an axial seal arrangement provided on a filter cartridge. A typical filter cartridge, for use with these features, is a filter cartridge having opposite flow ends. Example media arrangements that fit this characterization are described. Seal arrangements provided with an axial housing sealing engagement surface are shown. A seal arrangement is provided with variations therein, to advantage. These variations can be in both of an outer peripheral edge surface and a housing seal engagement surface. Also, air cleaner assemblies having advantageous features therein are provided. Further, air cleaner housings are described, with selected, preferred features for engagement with filter cartridges.

First claim

What is claimed:

1. A filter cartridge comprising:
(a) a filter media pack comprising first and second flow ends, with media extending therebetween;
(b) a pinch seal arrangement having: an outer peripheral surface; and, first and second, opposite, pinch seal housing engagement surfaces;
(i) the outer peripheral surface having a first member of a projection/recess contour therein comprising a first recess member in the outer peripheral surface; and,

(c) the second one of the first and second, opposite, pinch seal housing engagement surfaces being a contoured seal surface with at least one housing engagement projection/recess member therein;
(i) the housing engagement projection/recess member comprising a projection arrangement positioned, in a portion of the pinch seal arrangement, in axial alignment with the first member of the projection/recess contour in the outer peripheral surface.

2. A filter cartridge according to claim 1 wherein:
(a) the first one of the first and second, opposite, pinch seal housing engagement surfaces has a peripherally continuous pressure flange engagement section that is not contoured as a mirror image of the contoured housing engagement surface of the second pinch seal housing engagement surface.

3. A filter cartridge according to claim 1 wherein:
(a) the first member of a projection/recess contour in the outer peripheral surface comprises multiple, spaced, recesses in the outer peripheral surface.

4. A filter cartridge according to claim 3 wherein:
(a) the first member of a projection/recess contour in the outer peripheral surface comprises two recess members each having a straight surface section extending over a distance of at least 5 mm.

5. A filter cartridge according to claim 1 wherein:
(a) the first member of a projection/recess contour in the outer peripheral surface has a maximum contour relief of at least 1 mm and not more than 10 mm.

6. A filter cartridge according to claim 1 wherein:
(a) the projection arrangement of the housing engagement projection/recess member in the second pinch seal housing engagement surface extends over no more than 50% of a total perimeter extension of the second pinch seal engagement surface.

7. A filter cartridge according to claim 1 wherein:
(a) the projection arrangement of the housing engagement projection/recess member on the second pinch seal housing engagement surface comprises at least one projection having a flat section extending over a distance of at least 40 mm.

8. A filter cartridge according to claim 1 wherein:
(a) the media pack comprises fluted media secured to facing media.

9. A filter cartridge according claim 8 wherein:
(a) the media pack comprises a coiled arrangement of fluted media secured to facing media.

10. A filter cartridge according to claim 1 wherein:
(a) the media pack has an outer periphery with at least one straight section extending over a distance of at least 40 mm.

11. A filter cartridge according to claim 10 wherein:
(a) the outer peripheral surface of the pinch seal arrangement includes the first member of a projection/recess contour positioned in overlap with a straight section of the media pack.

12. A filter cartridge according to claim 1 wherein:
(a) the media pack comprises a first pleated media coil surrounding a second pleated media coil.

13. A filter cartridge according to claim 1 including:
(a) a handle arrangement projecting in a direction away from the pinch seal member and the second flow end.

14. A filter cartridge according to claim 1 including:
(a) a preformed shell surrounding the media pack.

15. A filter cartridge according to claim 14 wherein:
(a) the preformed shell includes a grid, in at least partial extension across the second flow end.

16. A filter cartridge according to claim 1 wherein:
(a) the pinch seal arrangement comprises a portion molded directly to the media of the filter media pack.

17. A filter cartridge according to claim 1 wherein:
(a) the second one of the first and second, opposite, pinch seal housing engagement surfaces comprise at least two projections, each of which projects, axially, at least 3 mm from an adjacent portion of the second pinch seal housing engagement surface.

18. A filter cartridge according to claim 1 wherein:
(a) the outer peripheral surface of the pinch seal arrangement is peripherally radially symmetric around a central axis.

19. A filter cartridge according to claim 1 wherein:
(a) the first housing engagement projection/recess member comprises at least a first portion with a first contour projection of maximum extension;
(i) the first portion having a flow direction cross dimensional area of A 1 ; and,

(b) the housing seal arrangement as a non-contoured second portion;
(i) the second portion having a flow direction cross-dimensional area of A 2 ;
(ii) wherein A 1 =0.92-1.08 A 2 .

20. An air cleaner assembly including a filter cartridge in accord with claim 1 therein; the assembly comprising:
(a) a housing having a first housing section and a second housing section;
(i) the first housing section comprising an access cover section having a pressure flange thereon;
(ii) the second housing section comprising a base section having a seal compression surface thereon;
(A) the pressure flange being positioned on a portion of the access cover section that projects at least 50 mm into the base section, when the filter cartridge is sealed in position; and,
(B) the seal compression surface on the base section including a plurality of peripherally spaced recesses therein; and,

(b) the filter cartridge according to claim 1 positioned within the housing with the pinch seal housing engagement surface biased against the seal compression surface, on the base section, by the pressure flange on the access cover.

Assignees

• Donaldson Co Inc

Inventors

• Campbell Steven K
• Gieseke Steven

Classifications

• B01D2271/022

  Axial sealings · CPC title

• B01D46/10

  Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces · CPC title

• B01D2271/02

  Gaskets, sealings · CPC title

• B01D46/009

  Identification of filter type or position thereof, e.g. by transponders or bar codes · CPC title

• B01D2201/4046

  Means for avoiding false mounting of different parts · CPC title