Patent · US Active

Air filter element, air filter housing and air filter system

US9205361B2 · kind B2 · utility

12Cited by

0References

9Claims

0Family size

Assignee

MANN+HUMMEL GmbH · DE

Inventors

Joerg Menssen · Tamm, DE
Stefan Becker · Mannheim, DE
Kai Hilarius · Münstermaifeld, DE
Klaus-Dieter Ruhland · Meckenheim, DE

Key dates

Filing date	Aug 19, 2013
Grant date	Dec 8, 2015
Priority date	—
Expiry date	Oct 3, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2275/208
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A filter element (1) for an air filter (30) has a tubular filter medium (2), the annular cross-section of which encloses an interior (6) of the filter element and which has an inner wall (7) that adjoins the interior of the filter element and that extends in the form of at least one convex arch (8) and at least two concave arches (9), the concave arch (9) being located between two convex arches (8) such that the interior (6) of the filter element has a constriction (11) in the area of the concave arch (9), the constriction (11) being adjoined by two wide zones (12) of the interior of the filter element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.