Coaxial full-flow and bypass oil filter
US7090773B2 · kind B2 · utility
15Cited by
102References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2003 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Jan 31, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/13
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved combination full flow bypass oil filter is presented where the output of the bypass filter is obtained by non-venturi means and the extremely clean bypass filter output is measurable at all engine oil pressures. The bypass filter output is not blended with the full pass filtered oil until the bypass filtered oil is returned to the engine sump. Measurements have been made of this system that show positive bypass filter output in the range of 5 to 85 PSI engine oil pressure, the output a linear function of the oil pressure coming from the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.