Gasoline particulate reduction using optimized port and direct injection
US9840980B2 · kind B2 · utility
13Cited by
36References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2016 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Jul 12, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Additional approaches for the reduction of particulate emissions in gasoline engines using optimized port+direct injection are described. These embodiments include control of the amount of directly injected fuel so as to avoid a threshold increase in particulates due to piston wetting and reduction of cold start emissions by use of air preheating using variable valve timing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.