Oil filter including an integral filter support and housing drain valve assembly

US5814215A · kind A · utility

Assignee

• Knecht Filterwerke GmbH · DE

Inventors

• Elke Bruss · Asperg, DE
• Hans-Jurgen Jensen · Welver, DE
• Rolf Mohle · Bretzfeld, DE

Key dates

• Filing date: Feb 11, 1997
• Grant date: Sep 29, 1998
• Expiry date: Feb 11, 2017

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01M2001/1064
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A lubricating oil filter for internal combustion engines is disclosed herein. The oil filter includes a vertical housing closed at the top by a screw cover and includes a filter support rotatably mounted on the screw cover for removably supporting an annular filter element. The filter support includes a valve element at a bottom end thereof for closing an additional outlet port at the bottom of the housing when the cover and filter support are installed on the housing and for opening the additional outlet port when the cover and filter support are removed from the housing.