Filter element with at least one guide crosspiece, filter with a filter element and filter housing of a filter

Patent metadata

Field	Value
Publication number	US-9638147-B2
Application number	US-201414329963-A
Country	US
Kind code	B2
Filing date	Jul 13, 2014
Priority date	Jul 12, 2013
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A filter housing ( 11 ) has at least one inlet ( 15 ) and at least one outlet ( 17 ) for the fluid. The filter element ( 10 ) includes an open filter bellows ( 16 ) of a filter medium ( 18 ).The filter element ( 10 ) is arranged in a filter housing ( 11 ) separating the at least one inlet ( 15 ) from the at least one outlet ( 17 ). An element axis ( 14 ) of the filter element ( 10 ) and a housing axis ( 25 ) of the filter housing ( 11 ) can be aligned parallel or axially to an installation direction ( 12 ) of the filter element for installing the filter element ( 10 ) into the filter housing. The filter element ( 10 ) includes at least one guide crosspiece ( 46, 48 ) which extends axially and radially outward on a peripheral exterior side ( 26 ), relative to the element axis ( 14 ), of the filter element ( 10 ). The filter element ( 10 ) has at least one seal ( 42 ) running peripherally relative to the element axis ( 14 ), the seal ( 42 ) having a seal line with at least one convexity ( 54 ) arranged peripherally between two corner regions of the filter element ( 10 ) and is separated by these corner regions.

First claim

We claim:

1. A filter element for installation in an air filter housing of a filter for fluid, comprising:
an open filter bellows of a filter medium, which has an upstream side and a downstream side for the fluid to be filtered, and with an element axis, which is arrangeable parallel or axially to an installation direction for installing the filter element into the filter housing;
wherein an element axis is an axis extending through the filter bellows from the upstream side to the downstream side;
wherein the filter bellows has a first peripheral side extending from the upstream side to the downstream side of the filter bellows;
wherein the filter bellows has an opposing second peripheral side extending from the upstream side to the downstream side of the filter bellows;
wherein an X axis is defined as an axis having a direction traverse to the element axis and extending through the filter bellows from the first peripheral side to the second peripheral side;
a seal running peripherally relative to the element axis arranged on the filter element;
a first end plate having an upstream side edge, a downstream side edge, and opposing first lateral side and second lateral side edges, the first end plate having an inner side arranged on a first peripheral side of the filter bellows and covering the first peripheral side of the filter bellows from the upstream side to the downstream side of the filter bellows, the first end plate including:
at least one guide crosspiece elongated in the direction of the element axis and attached directly onto the first end plate at an outer side and projecting in the direction of the X axis outwardly from the first end plate;

a filter element retaining device arranged on the outer side of the first end plate, the filter element retaining device including:
a one-piece protrusion arranged directly on the first end plate at the outer side of the first end plate and projecting in the direction of the X axis outwardly from the first end plate, the one-piece protrusion extending laterally across the outer side of the first end plate from a first lateral edge to an opposing lateral edge of the first end plate, the one-piece protrusion forming an outwardly projecting convex U-shaped bump, the at least one guide crosspiece extending through an interior of the convex U-shaped bump;

wherein the seal is arranged directly on the one-piece protrusion and together with the one-piece protrusion forms an outwardly projecting convex U-shaped bump at least one guide crosspiece, the outwardly projecting convex U-shaped bump projecting in the direction of the X axis outwardly from the first end plate and beyond the at least one guide crosspiece.

2. The filter element according to claim 1 , wherein the at least one guide crosspiece tapers in a direction relative to the X axis.

3. The filter element according to claim 1 , wherein the at least one guide crosspiece has, when seen in the direction of the element axis, at least one shoulder or one step.

4. The filter element according to claim 1 , wherein a position of a spring arm of the at least one guide crosspiece is elastically modifiable relative to the filter bellows.

5. The filter element according to claim 1 , wherein the at least one guide crosspiece is at least two guide crosspieces, which are spaced apart peripherally relative to the element axis; and
wherein the guide crosspieces are each arranged radially to the element axis within an axial projection of the interior surface surround by a respective convexity.

6. The filter element according to claim 5 , wherein at least two guide crosspieces are asymmetrical, in the sense of an axis symmetry, relative to the a symmetry axis of the filter element.

7. The filter element according to claim 1 , wherein the filter medium is pleated, having a plurality of pleats, each pleat formed by a filter medium fold having an upstream pleat edges and the upstream side of the filter medium and downstream pleat edge at a downstream side of the filter medium.

8. The filter element according to claim 7 , wherein
a pleat height of each pleat is defined as a distance from the upstream pleat edge to the downstream pleat edge of the pleat;
wherein the pleat height of the filter bellows varies across the plurality of pleats.

9. The filter element according to claim 1 , wherein the at least one guide crosspiece is connected in a unitary one-piece manner to the end plate.

10. A filter housing of a filter, comprising:
at least one inlet and at least one outlet for fluid;
wherein the filter housing is adapted to receive at least one filter element according to claim 1 in such a manner that it separates the at least one inlet from the at least one outlet;
wherein the filter housing has a housing axis, which aligned parallel or axially to an installation direction of the filter element for installing the filter element;
wherein the filter housing has at least one crosspiece guide groove formed into an interior side of a filter housing wall for receiving at least one guide crosspiece of the filter element, the at least one crosspiece guide groove extends axially and radially outward on a peripheral interior side, relative to the housing axis, of the filter housing;
wherein the filter housing has a counter retaining device arranged at an installation opening, the counter retaining device including at least one U-shaped bump projecting axially outwardly from the filter housing and configured to engage a U-shaped bump of a filter element retaining device of the filter element.

11. An air filter for an internal combustion engine of a motor vehicle, comprising:
a filter element according to claim 1 ; and
a filter housing including:
at least one inlet and at least one outlet for fluid;
wherein the filter element is received the filter element in such a manner that it separates the at least one inlet from the at least one outlet;
wherein the filter housing has a housing axis, which aligned parallel or axially to an installation direction of the filter element for installing the filter element;
wherein the filter housing has at least one crosspiece guide groove formed into an interior side of a filter housing wall and receiving a respective one of the at least one crosspiece of the filter element, which extends axially and in a radially outward direction from a peripheral interior side of the filter housing, the at least one crosspiece guide groove receiving the respective at least one guide crosspiece and cooperating to guide the filter element in the filter housing.

12. The filter element according to claim 5 , wherein
a second one of the at least two guide crosspieces is attached directly onto the first end plate, spaced laterally away from and extending parallel to a first one of the at least two guide crosspieces;
wherein the second one of the at least two guide crosspieces has a lateral width that narrows step-wise at a location below the a filter element retaining device, the step-wise narrowing forming a step on the second one of the at least two guide crosspieces;
wherein the step is configured to abut onto a shoulder formed in the at least one crosspiece guide at an interior of the filter housing, when in an installed state of the filter element.

13. The filter element according to claim 8 , wherein
pleat height is smaller in a center region of the filter bellows than pleat height of pleats near longitudinal sides of the filter bellows.

Assignees

• Mann & Hummel Gmbh

Inventors

• Hasenfratz Robert
• Wagner Fabian
• Roesgen André
• Thalmann Christian
• Pflueger Frank
• Sorger Nadine
• Blossey Werner
• Rieger Mario
• Weber Andreas
• Neef Pascal

Classifications

• B01D2265/025

  making use of ramps or cams · CPC title

• B01D46/10

  Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces · CPC title

• F02M35/02416 Primary

  Fixing, mounting, supporting or arranging filter elements; Filter element cartridges · CPC title

• F02M35/0202

  Manufacturing or assembling; Materials for air cleaner housings · CPC title

• B01D46/4227

  Manipulating filters or filter elements, e.g. handles or extracting tools · CPC title