Systems and methods for injecting gaseous fuel during an exhaust stroke to reduce turbo lag
US9739251B2 · kind B2 · utility
1Cited by
12References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 1, 2016 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Apr 1, 2036 |
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 injecting and combusting an amount of gaseous fuel during an exhaust stroke of a cylinder combustion event in order to reduce turbo lag and reduce a duration of time required for an exhaust catalyst to light-off during transient events. In one example, when an increase in torque demand is greater than a threshold, a first amount of gaseous fuel may be combusted during a compression stroke of a cylinder combustion event and a second amount of gaseous fuel may be combusted during an exhaust stroke of the combustion event. The second amount may be adjusted based on the increase in torque demand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.