Patent · US Expired

Ring filter element for a liquid filter

US7237681B2 · kind B2 · utility

15Cited by

6References

12Claims

0Family size

Assignee

Mahle Filtersysteme GmbH · DE

Inventors

Thomas Brieden · Waiblingen, DE
Benoit Monzie · Stuttgart, DE

Key dates

Filing date	Aug 26, 2003
Grant date	Jul 3, 2007
Priority date	—
Expiry date	Jul 15, 2024

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2201/46
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A ring filter element is provided for a liquid filter, especially for an oil filter for purifying lubricating oil, especially for an internal combustion engine of a motor vehicle. The ring filter element comprises a filter material which is arranged in an annular manner and at least one end disk comprising an outwardly protruding journal which is eccentrically arranged in relation to the longitudinal central axis of the ring filter element. The functionality of the ring filter element can be improved by providing a discharge channel which radially penetrates the journal and the associated end disk next to the filter material.

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