Filter for an internal combustion engine and filter cartridge for the oil filter
US8920649B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 2008 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Apr 28, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/1064
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oil filter for an internal combustion engine has a filter housing having an interior and an exchangeable filter cartridge arranged in the interior of the filter housing. A drainage valve is arranged in the filter housing and has a valve seat and a valve member. The valve member is movable relative to the valve seat in an opening direction that is parallel and coaxial to a longitudinal axis of the filter housing and oriented toward the interior of the filter housing. The valve member is received in the valve seat in a closing direction opposite to the opening direction. The valve member can be pushed out of the filter housing in the closing direction. The valve member and the filter cartridge form together a servicing unit for joint exchange of the valve member and the filter cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.