Air filter element and air filter

Patent metadata

Field	Value
Publication number	US-10150074-B2
Application number	US-201615048095-A
Country	US
Kind code	B2
Filing date	Feb 19, 2016
Priority date	Feb 20, 2015
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

An air filter element with a filter cover and a filter body, whereby the filter body is connected to the filter cover with a water drainage duct, whereby the filter cover has a first side and a second side opposite to the first side, whereby the filter body is connected to the first side and the water drainage duct is connected to the second side.

First claim

What is claimed is:

1. An air filter element comprising:
a filter cover;
a filter body connected to the filter cover; and
a water drainage duct, the water drainage duct being a hollow tube,
wherein the filter cover is a planar element having a first surface and a second surface that opposes the first surface,
wherein the filter body is connected to the first surface of the filter cover and the water drainage duct is connected to the second surface of the filter cover, such that an axial direction of the hollow tube extends parallel to a plane defined by the second surface of the filter cover,
wherein the water drainage duct and the filter cover are monolithic, such that the water drainage duct is made as a single piece with the filter cover, and
wherein the filter body is insertable through an opening of a filter housing to extend into the filter housing and the filter cover having a same shape as the opening of the filter housing, such that when the filter body extends into the filter housing, the filter cover closes the opening so that the second surface of the filter cover aligns with an exterior surface of the filter housing, and
wherein, out of the first surface and the second surface of the filter cover, the water drainage duct is directly connected solely to the second surface of the filter cover and, out of the first surface and the second surface of the filter cover, the filter body is directly connected solely to the first surface of the filter cover.

2. An air filter comprising:
a filter housing; and
an air filter element according to claim 1 ,
wherein the filter housing has an opening and the filter body is inserted through the opening to extend into the filter housing,
wherein the filter cover has a same shape as the opening of the filter housing, such that when the filter body extends into the filter housing, the filter cover closes the opening so that the second surface of the filter cover aligns with an exterior surface of the filter housing, such that the second surface of the filter cover and the exterior surface of the filter housing extend in a same plane.

3. The air filter according to claim 2 , wherein at least one additional water drainage duct is provided, and wherein the at least one additional water drainage duct is directly connected to the filter housing.

4. The air filter according to claim 3 , wherein the at least one additional water drainage duct is made as a single piece with the filter housing by injection molding.

5. The air filter according to claim 3 , wherein the water drainage duct is connected to the at least one additional water drainage duct.

6. The air filter according to claim 5 , comprising two of the at least one additional water drainage ducts, such that two additional water drainage ducts are provided, and wherein the water drainage duct is connected to the two additional water drainage ducts and is disposed between the two additional water drainage ducts.

7. The air filter according to claim 5 , wherein the water drainage duct and the at least one additional water drainage duct each have open ends that are to be connected, and wherein the open ends are beveled complementary to one another.

8. The air filter according to claim 3 , wherein the at least one additional water drainage duct is connected to the filter housing on the exterior surface of the filter housing.

9. The air filter according to claim 8 , wherein when the filter cover closes the opening of the filter housing, an open end of the water drainage duct aligns with and directly connects to an open end of the at least one additional water drainage duct.

Assignees

• Mahle Int Gmbh

Inventors

• Hegner Hilmar
• Klein Florian
• Schaudt Jochen

Classifications

• B01D46/0002

  Casings; Housings; Frame constructions · CPC title

• B01D46/0039 Primary

  with flow guiding by feed or discharge devices · CPC title

• B60H3/06 Primary

  Filtering · CPC title