Filter elements, air cleaner assemblies, and methods of use and assembly

Patent metadata

Field	Value
Publication number	US-12201934-B2
Application number	US-202318154015-A
Country	US
Kind code	B2
Filing date	Jan 12, 2023
Priority date	Dec 1, 2016
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

Air cleaner assemblies, components therefor, and features thereof are described. Also described are methods of assembly and use. In depicted examples, the air cleaner assemblies and components optionally use advantageous housing seal features. Methods of assembly and use are described.

First claim

What is claimed:

1. A filter assembly comprising:
a. a housing defining an interior cavity extending between an inlet and an outlet;
b. a safety filter cartridge installed within the housing, the safety filter cartridge being sealed against a portion of the housing such that air passing from the inlet to the outlet must pass through filtration media of the safety filter cartridge, the safety filter cartridge presenting a first sealing surface; and
c. a main filter cartridge installed within the housing, the main filter cartridge being in direct contact with and sealed against the first sealing surface of the safety filter cartridge such that air passing from the inlet to the outlet must additionally pass through filtration media of the main filter cartridge.

2. The filter assembly of claim 1 , wherein the safety filter cartridge first sealing surface includes an annular sealing member circumscribing at least a portion of the safety filter cartridge filtration media, and wherein the main filter cartridge forms a seal against the annular sealing member.

3. The filter cartridge assembly of claim 2 , wherein the safety filter cartridge includes an open end cap and wherein the annular sealing member is partially embedded within the open end cap.

4. The filter assembly of claim 2 , wherein the main filter cartridge includes a seal structure that seals against the annular sealing member.

5. The filter assembly of claim 4 , wherein the main filter cartridge filtration media defines an interior space, and wherein the seal structure is located entirely within the interior space.

6. The filter assembly of claim 4 , wherein the seal structure defines an inwardly directed radial seal.

7. The filter assembly of claim 4 , wherein the seal structure is connected to an open end cap of the main filter cartridge by an annular extension member.

8. The filter assembly of claim 1 , wherein the first sealing surface of the safety filter cartridge defines a radially outward facing sealing surface and the main filter cartridge includes a radially inward facing sealing surface that forms a seal against the first sealing surface of the safety filter cartridge.

9. The filter assembly of claim 8 , wherein the safety filter cartridge includes an annular extension member defining the first sealing surface of the safety filter cartridge.

10. The filter cartridge of claim 8 , wherein the main filter cartridge includes an annular extension member supporting the radially inward facing sealing surface of the main filter cartridge.

11. The filter cartridge of claim 8 , wherein the main filter cartridge includes an open end cap and wherein the radially inward facing sealing surface of the main filter cartridge has a diameter that is less than an internal diameter of an opening in the open end cap.

12. The filter cartridge of claim 8 , wherein the radially inward facing sealing surface of the main filter cartridge is located entirely within an interior volume defined by the filtration media of the main filter cartridge.

Assignees

• Donaldson Co Inc

Inventors

• Adamek Daniel E
• Nelson Benny K
• Vanaudenhove William
• Decugniere Antoine

Classifications

• B01D50/20

  Combinations of devices covered by groups B01D45/00 and B01D46/00 · CPC title

• B01D2279/60

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

• B01D2271/027

  Radial sealings · CPC title

• B01D45/16

  generated by the winding course of the gas stream {, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes} · CPC title

• B01D46/64

  arranged concentrically or coaxially · CPC title