Method of introducing fuel into the combustion chamber of an internal combustion spark-ignition engine with direct fuel injection
US5988136A · kind A · utility
6Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Mar 13, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In order to reduce No.sub.x and HC emissions during starting and warm-up of a throttled internal combustion spark-ignition engine with direct injection, the beginning of fuel injection into the combustion chamber is shifted into the compression phase, while the total air ratio .lambda. is 1 or slightly lean.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.