Invention Grant
- Patent Title: Oil filter device for an internal combustion engine
- Patent Title (中): 内燃机油过滤装置
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Application No.: US12158567Application Date: 2006-12-14
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Publication No.: US07727390B2Publication Date: 2010-06-01
- Inventor: Valentin Ruffet , Hans-Martin Ruppert
- Applicant: Valentin Ruffet , Hans-Martin Ruppert
- Applicant Address: DE Stuttgart
- Assignee: Mahle International GmbH
- Current Assignee: Mahle International GmbH
- Current Assignee Address: DE Stuttgart
- Agency: Rader, Fishman & Grauer PLLC
- Priority: DE102005061186 20051221
- International Application: PCT/DE2006/002253 WO 20061214
- International Announcement: WO2007/076810 WO 20070712
- Main IPC: B01D35/16
- IPC: B01D35/16 ; B01D35/31

Abstract:
The invention relates to an oil filter device (1) for an internal combustion engine, comprising a support element (2) and a substantially cylindrical filter cartridge (3) which can be connected, especially screwed, to the support element (2). The invention is characterized in that the filter cartridge is arranged essentially in an upright position while an annular duct (4) which surrounds the filter cartridge (3) in the screwed-on state is embodied inside the support element (2). The duct (4) is fluidically separated from the interior of the filter cartridge (3) when the filter cartridge is screwed on while said separation is eliminated when the filter cartridge (3) is removed. Furthermore, the duct (4) is configured as a drainage duct and is fluidically connected to an oil reservoir when the filter cartridge (3) is removed such that the filter cartridge is easy to replace while no oil is spilled, preventing pollution of the environment.
Public/Granted literature
- US20090001010A1 Oil Filter Device for an Internal Combustion Engine Public/Granted day:2009-01-01
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