Secondary air introduction system
US9238983B2 · kind B2 · utility
3Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2012 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Nov 23, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Embodiments for heating an emission control device are provided. In one example, a method for a turbocharged engine comprises during an engine cold-start, delivering boosted air from downstream of a compressor into a wastegate duct coupled across a turbine and exothermically reacting a reductant with the boosted air upstream of an exhaust emission control device. In this way, boosted air may be used to initiate an exothermic reaction to heat the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.