Air cleaner arrangements; components; and methods

Patent metadata

Field	Value
Publication number	US-10245544-B2
Application number	US-201514977930-A
Country	US
Kind code	B2
Filing date	Dec 22, 2015
Priority date	Jul 20, 2007
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

An air cleaner assembly and components therefor are described. The components include features of an air cleaner housing; advantageous main filter cartridges; and, advantageous safety filter cartridge features. Features of the main filter cartridge are provided to engage an access cover of the assembly, and a cartridge support within the housing, in a preferred manner. Methods of assembly and use are also described.

First claim

What is claimed:

1. An air filter cartridge for removable installation in a housing; the air filter cartridge comprising:
(a) a media pack comprising media surrounding an open interior; the media having first and second ends;
(b) a first end cap positioned on the media first end and extending completely across the first end of the media between media inner and outer perimeters; and,
(c) a second end cap positioned on the media second end and extending at least completely across the second end of the media between media inner and outer perimeters;
(d) a portion of one of the end caps including a radially directed surface having a serpentine shape with at least five each of alternating radially facing convex and radially facing concave portions;
(i) the radially directed surface having a serpentine shape with an outer cross dimension that is smaller than an outer cross-dimension of an outermost portion of the media pack; and,
(ii) the portion of one of the end caps including a radially directed surface having a serpentine shape comprises a wall of a receiving groove.

2. A main filter cartridge according to claim 1 wherein:
(a) the receiving groove is at least 6 mm deep.

3. An air filter cartridge according to claim 1 wherein:
(a) the portion of one of the end caps including a radially directed serpentine shape is a portion with a radially inwardly directed serpentine shape.

4. An air filter cartridge according claim 1 wherein:
(a) the portion of one of the end caps including a radially directed serpentine shape has an outer cross dimension that is smaller than an inner cross-dimension of the innermost portion of the media pack.

5. An air filter cartridge according claim 1 wherein:
(a) the portion of the end cap including a radially directed serpentine shape has a serpentine shape with 6-10 concave sections.

6. An air filter cartridge according claim 1 wherein:
(a) a radially outwardly directed housing radial seal member on the first end cap.

7. An air filter cartridge in accord with claim 1 wherein:
(a) the receiving groove has inner and outer walls; and the cartridge includes a central projection on the outer surface of the second end cap that projects further in a direction away from the first end cap than does the outer wall of the receiving groove.

8. A main filter cartridge according to claim 7 wherein:
(a) the central projection has a sidewall that tapers inwardly in extension toward a tip.

9. An air filter cartridge in accord with claim 1 wherein:
(a) the first end cap has a central aperture therethrough;
(i) the first end cap having a first seal portion oriented to form a first, radially outwardly directed, releasable radial seal with a housing;
(ii) the first end cap having a second radial seal portion oriented to form a second, radially outwardly directed, seal with a housing at an opposite side of a housing joint from the first releasable radial seal; and,
(iii) the first and second, radially outwardly directed, seal portions being configured to form seals that differ from one another, in largest cross-dimension, by at least 2 mm; the first seal portion having a larger cross-dimension than any portion of the second seal portion;

(b) the end cap having the radially directed surface having a serpentine shape is the second end cap.

10. An air cleaner assembly comprising:
(a) a housing defining an interior;
(i) the housing defining a service access end with a removable access cover positioned thereover; and,
(ii) the access cover including a central projection thereon, extending into the housing interior from the access cover;
(iii) the central projection on the access cover having a sidewall portion with a serpentine shape;

(b) a filter cartridge positioned in the housing and comprising:
(i) a media pack comprising pleated media surrounding an open interior; the media having first and second ends;
(ii) a first end cap positioned on the media first end and extending completely across the first end of the media between media inner and outer perimeters; and,
(iii) a second end cap positioned on the media second end and extending at least completely across the second end of the media between media inner and outer perimeters;
(iv) a portion of one of the end caps including a radially directed surface having a serpentine shape with at least five each of alternating radially facing convex and radially facing concave portions;
(A) the radially directed surface having a serpentine shape with an outer cross dimension that is smaller than an outer cross-dimension of an outermost portion of the media pack.

Assignees

• Donaldson Co Inc

Inventors

• Iddings Douglas
• Adamek Daniel
• Miller Thomas
• Dewit Johan
• Baseotto Michel
• Merckx Roberto
• Dils Julien
• Coulonvaux Paul

Classifications

• B01D2265/021

  Anti-rotational means · CPC title

• B01D46/009

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

• B01D46/00 Primary

  Filters or filtering processes specially modified for separating dispersed particles from gases or vapours (filtering elements B01D24/00-B01D35/00; filtering material B01D39/00; their regeneration outside the filters B01D41/00) · CPC title

• B01D46/0012

  In-line filters · CPC title

• B01D2279/60

  for the intake of internal combustion engines or turbines · CPC title