Filter cartridges; air cleaner assemblies; housings; features; components; and, methods

Patent metadata

Field	Value
Publication number	US-11660558-B2
Application number	US-202117447162-A
Country	US
Kind code	B2
Filing date	Sep 8, 2021
Priority date	Mar 2, 2015
Publication date	May 30, 2023
Grant date	May 30, 2023

Abstract

Air cleaner assemblies, components, and features are described. The features can be used to provide that the air cleaner assembly cannot be fully closed, even if a cartridge is nested therein, and appears to be sealed, unless that cartridge is a proper one for the system of concern. The effect is to prevent an inappropriate cartridge, that does not properly seal, from being inadvertently installed in the assembly.

First claim

What is claimed:

1. An air filter cartridge comprising:
(a) a media pack having a rectangular outer perimeter comprising a first pair of opposite sides and a second pair of opposite sides, and opposite inlet and outlet flow faces, wherein the inlet flow face is an upstream flow face and the outlet flow face is a downstream flow face;
(i) the media pack comprising pleated media;
(ii) a first pair of panels covering the first pair of opposite sides of the media pack;
(iii) a second pair of panels covering the second pair of opposite sides of the media pack;
(iv) an axial flow direction from the inlet flow face to the outlet flow face;

(b) a housing engagement member surrounding the media pack; the housing engagement member including:
(i) a pinch seal portion; a seal support portion; and, a receiving trough positioned radially inwardly of the pinch seal portion;
(ii) the pinch seal portion includes a first axial facing surface and a second axial facing surface, wherein the first axial facing surface comprises a seal surface constructed to form a seal with an air cleaner housing;
(iii) the pinch seal portion including a portion extending along the first pair of opposite sides of the media pack and being orthogonal to the axial flow direction through the media pack;
(iv) the pinch seal portion including a portion extending along the second pair of opposite sides of the media pack and being non-orthogonal to the axial flow direction through the media pack; and,

(c) a member of an air cleaner security, housing closure, inhibition arrangement positioned in the housing engagement member;
(i) the member of an air cleaner security, housing closure, inhibition arrangement comprises a pocket arrangement including at least one receiving pocket therein, wherein the at least one receiving pocket defines a deeper recess than portions of the receiving trough;
(ii) the at least one receiving pocket includes an opening facing in a direction away from the inlet flow face;
(iii) the first axial seal surface including a contoured portion comprising a peripheral contour projection arrangement in axial alignment with the at least one receiving pocket.

2. An air filter cartridge according to claim 1 wherein:
(a) the portion extending along the second pair of opposite sides of the media pack and being non-orthogonal to the axial flow direction through the media pack extending at an angle of at least 2 degrees.

3. An air filter cartridge according to claim 1 wherein:
(a) the housing engagement member includes only one receiving pocket therein.

4. An air filter cartridge according to claim 1 wherein:
(a) the media pack has a dimension between the opposite flow faces of at least 50 mm.

5. An air filter cartridge according to claim 1 wherein:
(a) the media pack has a dimension between the opposite flow faces of at least 80 mm.

6. An air filter cartridge according to claim 1 wherein:
(a) the opposite flow faces are planar.

7. An air filter cartridge according to claim 6 wherein:
(a) the opposite flow faces are planar in planes perpendicular to a flow direction between the opposite flow faces.

8. An air filter cartridge according to claim 1 wherein:
(a) the opposite flow faces have a first, longest, cross-dimension of at least 150 mm.

9. An air filter cartridge according to claim 2 wherein:
(a) the opposite flow faces have a first, longest, cross-dimension of at least 300 mm.

10. An air filter cartridge according to claim 1 wherein:
(a) the flow faces each have a longer cross-dimension to shorter cross-dimension ratio of at least 1.5.

11. An air filter cartridge according to claim 1 wherein:
(a) the contoured portion includes at least one stepped section with a maximum projection of at least 5 mm relative to adjacent non-contoured portions of the seal surface.

12. An air filter cartridge according to claim 11 wherein:
(a) the at least one stepped section includes multiple steps.

13. An air filter cartridge according to claim 1 wherein:
(a) the pinch seal portion includes an outer perimeter surface with at least one contoured portion therein.

14. An air filter cartridge according to claim 13 wherein:
(a) the contoured portion in the outer perimeter surface of the pinch seal portion is at least 2 mm in maximum relief, from non-contoured portions of the outer perimeter surface.

15. An air filter cartridge according to claim 1 wherein:
(a) the housing engagement member is molded-in-place on a remainder of the filter cartridge.

16. An air filter cartridge according to claim 1 wherein:
(a) the housing engagement member is molded-in-place in direct contact with the media pack.

17. An air filter cartridge according to claim 1 wherein:
(a) the receiving trough is continuous in extension around the media pack.

18. An air filter cartridge according to claim 1 wherein:
(a) the receiving trough is discontinuous in extension around the media pack.

19. An air filter cartridge according to claim 1 wherein:
(a) the at least one receiving pocket is in the receiving trough.

20. An air filter cartridge according to claim 1 wherein:
(a) the first pair of opposite sides are longer than the second pair of opposite sides.

21. An air filter cartridge comprising:
(a) a media pack having a rectangular outer perimeter comprising a first pair of opposite sides and a second pair of opposite sides, and opposite inlet and outlet flow faces, wherein the inlet flow face is an upstream flow face and the outlet flow face is a downstream flow face;
(i) a first pair of side panels covering the first pair of opposite sides of the media pack; and
(ii) an axial flow direction from the inlet flow face to the outlet flow face;

(b) a housing engagement member surrounding the media pack; the housing engagement member including:
(i) a pinch seal portion; a seal support portion; and, a receiving trough positioned radially inwardly of the pinch seal portion;
(ii) the pinch seal portion includes a first axial facing surface and a second axial facing surface, wherein the first axial facing surface comprises a seal surface constructed to form a seal with an air cleaner housing;
(iii) the pinch seal portion including a portion extending along the first pair of opposite sides of the media pack and being orthogonal to the axial flow direction through the media pack;
(iv) the pinch seal portion including a portion extending along the second pair of opposite sides of the media pack and being non-orthogonal to the axial flow direction through the media pack; and,

(c) a member of an air cleaner security, housing closure, inhibition arrangement positioned in the housing engagement member;
(i) the member of an air cleaner security, housing closure, inhibition arrangement comprises a pocket arrangement including at least one receiving pocket therein, wherein the at least one receiving pocket defines a deeper recess than portions of the receiving trough;
(ii) the first axial seal surface including a contoured portion comprising a peripheral contour projection arrangement in axial alignment with the at least one receiving pocket.

22. An air filter cartridge according to claim 21 wherein:
(a) the first pair of opposite sides are longer than the second pair of opposite sides.

Assignees

• Donaldson Co Inc

Inventors

• Adamek Daniel E
• Brown Scott
• Johnston Robert D
• Kalis Matthew A
• Manahan Richard P

Classifications

• B01D46/526

  in stacked arrangement · CPC title

• B01D2265/026

  with means for avoiding false mounting · CPC title

• F02M35/024

  using filters, e.g. moistened (F02M35/026 takes precedence; cleaning of the filtering material F02M35/08) · CPC title

• B01D46/0005 Primary

  Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence) · CPC title

• B01D2271/022

  Axial sealings · CPC title