Method and system for engine control
US9175615B2 · kind B2 · utility
2Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2013 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Sep 30, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for reducing exhaust temperatures during high engine load conditions in engine systems configured to operate with multiple fuels. Stoichiometric cylinder operation is provided via injection of a gaseous fuel such as CNG. In response to elevated exhaust temperatures, the cylinder is enriched by injecting a liquid fuel, such as gasoline, while maintaining the injection of CNG and while maintaining spark timing at MBT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.