System and method for operating an engine in a fuel cut-out mode
US11215129B2 · kind B2 · utility
1Cited by
3References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2020 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Apr 3, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems for operating an engine that includes adjustable poppet valve timing and an exhaust gas recirculation valve are described. In one example, the exhaust gas recirculation valve is opened and the timing of the poppet valves is retarded so that an amount of fresh air that is pumped by the engine to an after treatment device may be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.