Engine diagnostic method
US6112731A · kind A · utility
5Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1998 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Dec 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine diagnostic method for an engine having a switching exhaust gas sensor and a fuel system uses the switching exhaust gas sensor during open loop fuel enrichment to diagnose fuel system degradation, including fuel filter degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.