Air filter arrangement

Patent metadata

Field	Value
Publication number	US-10821385-B2
Application number	US-201615751248-A
Country	US
Kind code	B2
Filing date	Aug 11, 2016
Priority date	Aug 24, 2015
Publication date	Nov 3, 2020
Grant date	Nov 3, 2020

Abstract

Filter housings that have housing wall surface irregularities are described. The surface irregularities are positioned on the inner walls of the housings and/or axial ends of the housing walls. The surface irregularities may be, for example, grooves, ribs, bumps, and the like. The surface irregularities provide an engine integrity protection (EIP) feature by preventing non-approved replacement filter elements from forming seals against alternative sealing surfaces of the housing wall inner surfaces or axial ends.

First claim

What is claimed is:

1. A filtration system comprising:
a filter housing;
a removable filter element positioned within the filter housing;
a first at least one surface irregularity on a portion of an axial end surface of the filter housing that prevents an axial seal from being formed over the portion of the axial end surface; and
a second at least one surface irregularity on a portion of an inner wall surface of the filter housing that prevents a radial seal from being formed over the portion of the inner wall surface.

2. The filtration system of claim 1 , wherein:
the removable filter element is an approved filter element; and
the removable filter element, when positioned within the filter housing, forms a radial seal with the portion of the inner wall surface of the filter housing.

3. The filtration system of claim 1 , wherein the first at least one surface irregularity includes at least one of a notch, a projection, a rib, a groove, a bump, or a pocket.

4. The filtration system of claim 1 , wherein:
the removable filter element is an approved filter element; and
the removable filter element includes a axial seal member that forms a seal between the removable filter element and the axial end surface of the filter housing.

5. A filtration system housing comprising:
a filter housing body forming an inner compartment structured to receive a filter element;
a housing cover removably coupled to the filter housing body;
a first at least one surface irregularity on a portion of an axial end surface of the filter housing body that prevents an axial seal from being formed between the housing cover and the portion of the axial end surface; and
a second at least one surface irregularity on a portion of an inner wall surface of the filter housing body that prevents a radial seal from being formed over the portion of the inner wall surface when the filter element is positioned within the filter housing body.

6. The filtration system housing of claim 5 , wherein the first at least one surface irregularity includes at least one of a notch, a projection, a rib, a groove, a bump, or a pocket.

7. The filtration system housing of claim 5 , wherein the filter element includes a first seal member that forms a first seal between the filter element and the filter housing body at a location of the filter housing body, the location being different from the axial end surface.

8. A filtration system comprising:
a filter housing;
a removable filter element positioned within the filter housing;
a first surface irregularity on a portion of a surface of the filter housing that prevents a seal from being formed over the portion of the surface; and
a second surface irregularity on a portion of an axial end surface of the filter housing that prevents an axial seal from being formed over the axial end surface,
wherein the surface of the filter housing is an inner wall surface of the filter housing, and
wherein the first surface irregularity prevents a radial seal from being formed over the portion of the surface.

Assignees

• Cummins Filtration Ip Inc

Inventors

• Schwartz Scott W
• Herman Peter K
• Cupery Jeremiah
• Terres Mark A

Classifications

• B01D2265/026

  with means for avoiding false mounting · CPC title

• B01D46/009

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

• B01D46/0005 Primary

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

• B01D2265/02

  Non-permanent measures for connecting different parts of the filter · CPC title

• B01D46/528

  using wound sheets (B01D46/527 takes precedence) · CPC title