Method of reducing NO.sub.x emissions in gasoline vehicles
US5234477A · kind A · utility
6Cited by
15References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1992 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Apr 28, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is an unleaded fuel composition containing a major amount of a hydrocarbon base fuel of the gasoline boiling range containing an amount effective to reduce NO.sub.x emissions from electronic port fuel injected engines of ammonia or an ammonium compound. The invention also includes a method of reducing NO.sub.x emissions from electronic port fuel injected engines by feeding to the engine exhaust gases at a point between the outlet valves and catalytic converter an amount effective to reduce NO.sub.x emissions from the engines of ammonia or an ammonium compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.