Liquid filter, especially an oil filter

US6835305B1 · kind B1 · utility

Assignee

• Mahle Filtersysteme GmbH · DE

Inventors

• Peter G. Baumann · Stuttgart, DE
• Thomas Brieden · Waiblingen, DE
• Hans Gebert · Sankt Augustin, DE
• Benoit Monzie · Stuttgart, DE

Key dates

• Filing date: Apr 23, 2002
• Grant date: Dec 28, 2004
• Expiry date: Aug 21, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2201/4046
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a especially an oil filter for cleaning lubricating oil, especially for internal combustion engines of automobiles, comprising a filter housing which is positioned essentially upright when installed, which contains a filter receiving area for accommodating a ring-shaped filter insert in an upper section and which contains an inlet channel for unclean liquid, which connects a supply line of the liquid filter to an unclean side of the ring-shaped filter insert in the filter receiving chamber and an outlet channel for clean liquid, which connects a clean side of the ring-shaped filter insert in the filter receiving area to a discharge line of the liquid filter, in a lower section. The invention provides for a functional support insert which can be inserted into the support receiving area formed in the lower section of the filter housing and which contains the outlet channel, in order to simplify the production of the liquid filter.