Air filter arrangements; assemblies; and, methods

Patent metadata

Field	Value
Publication number	US-9289712-B2
Application number	US-201414195092-A
Country	US
Kind code	B2
Filing date	Mar 3, 2014
Priority date	Nov 15, 2007
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

Air cleaner assemblies and components therefor are described. An example first or main filter cartridge is described which includes a media pack comprising strips of fluted material secured to facing sheets, oriented in a stack. The media pack defines opposite inlet and outlet flow faces, with flutes extending in a direction therebetween. The media pack is non-removably secured within a filter cartridge housing, at a location between opposite sections of a shell, typically secured thereto with an adhesive. The shell also defines a closed end, spaced from, but in overlap with, the outlet end face of the media pack. The closed end is typically curved and the shell typically provides either a d/b-shape or a u-shape. The filter includes an end member, with a outlet flow aperture arrangement therein, allowing for outlet flow from the filter cartridge in a general direction orthogonal to air flow through the media pack. The air cleaner assembly includes a housing having features for receipt of, and engagement by, the filter cartridge. An optional secondary filter cartridge is provided, mountable on the housing in an orientation projecting into a clean air volume in the main filter cartridge.

First claim

What is claimed is:

1. An air filter cartridge comprising:
(a) a media pack closed to passage of unfiltered air through the media pack without passage through media therein;
(i) the media pack defining an inlet flow face and an opposite outlet flow face; and,
(ii) the media pack defining a plurality of flutes extending in a direction generally between the inlet and outlet flow faces; and,

(b) a member non-removably secured to the media pack and defining a filter cartridge clean air volume adjacent the outlet flow face of the media pack;
(c) the filter cartridge including an air flow outlet in flow communication with the filter cartridge clean air volume and oriented for air flow therethrough in a direction generally orthogonal to a flow direction between the inlet and outlet flow faces.

2. An air filter cartridge according claim 1 wherein:
(a) the media pack comprises fluted media secured to facing media.

3. An air filter cartridge according to claim 2 wherein:
(a) the media pack comprises a stack of strips of media defining an inlet flow face and an opposite outlet flow face.

4. An air filter cartridge according to claim 1 wherein:
(a) the member secured to the media pack and defining a filter cartridge clean air volume is a member having a housing radial seal thereon.

5. An air filter cartridge according to claim 1 including:
(a) a first housing seal positioned surrounding the filter cartridge air flow outlet.

6. An air filter cartridge according to claim 5 wherein:
(a) the first housing seal comprises a radially directed housing seal arrangement with respect to an axis surrounded by the first housing seal.

7. An air filter cartridge according to claim 6 wherein:
(a) the first radially directed housing arrangement comprises a radially inwardly directed housing seal arrangement.

8. An air filter cartridge according to claim 6 wherein:
(a) the first housing radial seal comprises a seal surface defining: a first, arcuate, side; and, a second side, opposite the first arcuate side, having a central vertex and opposite side sections.

9. An air filter cartridge according to claim 6 wherein:
(a) the first housing radial seal defines a non-circular shape with: two, straight, tangential side sections extending at right angles to one another; and, a portion that defines a circular shape extending over at least a half-circle.

10. An air filter cartridge according to claim 6 including:
(a) a handle member projecting in a direction away from the filter cartridge air flow outlet arrangement.

11. An air filter cartridge according to claim 1 wherein:
(a) a distance X across the filter cartridge clean air volume, in a direction away from the outlet flow face, is at least 50% of Y; Y being a distance across the media pack in a direction perpendicular to a direction of air flow through the media pack.

12. An air filter cartridge according to claim 11 wherein:
(a) a distance X across the filter cartridge clean air volume, in a direction away from the outlet flow face, is at least 75% of Y; Y being a distance across the media pack in a direction perpendicular to a direction of air flow through the media pack.

13. An air cleaner assembly comprising:
(a) an air cleaner housing having a sidewall defining an interior; the housing including: an air flow inlet and a housing air flow outlet arrangement;
(i) the housing including an access opening with a removable access cover thereover, at a location opposite the housing air flow outlet arrangement; and,

(b) a removable and replaceable first air filter cartridge positioned within the housing interior;
(i) the first air filter cartridge being sized to for installation and removal when the access cover is removed; and,
(ii) the first air filter cartridge including:
(A) a media pack closed to passage of unfiltered air through the media pack without passage through media therein;
(1) the media pack defining an inlet flow face and an opposite outlet flow face; and,
(2) the media pack defining a plurality of flutes extending in a direction generally between the inlet and outlet flow faces; and,

(B) a member secured to the media pack and defining a filter cartridge clean air volume adjacent the outlet flow face of the media pack; the member including a filter cartridge air flow outlet;

(c) the housing air flow outlet being oriented for outlet flow therethrough in a direction generally orthogonal to direction of the air flow through the first air filter cartridge;
(i) the first air filter cartridge being positioned in the housing with the filter cartridge air flow outlet directed toward, and in air flow alignment with, the housing air flow outlet arrangement.

14. An air cleaner assembly according to claim 13 wherein:
(a) the media pack comprises fluted media secured to facing media.

15. An air cleaner according to claim 14 wherein:
(a) the media pack comprises a stack of strips of media defining an inlet flow face and an opposite outlet flow face.

16. An air cleaner assembly according to claim 13 wherein:
(a) the member secured to the media pack and defining a filter cartridge clean air volume is a member non-removably secured to the media pack.

17. An air cleaner assembly according to claim 13 wherein:
(a) the member secured to the media pack and defining a filter clean air volume comprises a shell member having first and second, opposite, side portions with the media pack positioned therebetween.

18. An air cleaner assembly according to claim 13 including:
(a) a first housing seal arrangement comprising a radial seal positioned surrounding the filter cartridge air flow outlet; and,
(b) the filter cartridge is positioned with the first housing seal arrangement removably sealed to the air cleaner housing.

19. An air cleaner assembly according to claim 18 including:
(a) a secondary filter cartridge that is separable from the air cleaner housing and the first air filter cartridge;
(i) the secondary filter cartridge being removably mounted in the air cleaner housing adjacent the housing air flow outlet arrangement and projecting into the filter cartridge clean air volume of the first air filter cartridge.

Assignees

• Donaldson Co Inc

Inventors

• Nelson Benny Kevin
• Kuhn John
• Larsen Donald
• Nelson David

Classifications

• B01D46/526 Primary

  in stacked arrangement · CPC title

• B01D46/0005

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

• B01D2271/027

  Radial sealings · CPC title

• Y10T156/10

  Methods of surface bonding and/or assembly therefor · CPC title

• B01D46/2414

  End caps including additional functions or special forms · CPC title