Patent ID: 8920649
Filing Date: 2014-12-30
Classification: B01D,F01M

Abstract:
1. An oil filter for an internal combustion engine, the oil filter comprising: a filter housing having an open interior; an exchangeable filter cartridge arranged in said interior of said filter housing, said exchangeable filter cartridge including an axially elongated cylindrical valve member including: wherein the filter housing has a housing bottom wall having an interior side within the filter housing and an exterior side, the filter housing having a second valve including: wherein said cylindrical valve member is axially slideable on its first seal ring against the axially extending cylindrical valve seat of the cylindrical receptacle member and axially slideable on its second seal ring against the second axially extending cylindrical valve seat of the cylindrical drainage valve housing; wherein said cylindrical valve member is axially slideable along said central axis of said cylindrical filter member between