Reverse stratified, ignition controlled, emissions best timing lean burn engine
US5211147A · kind A · utility
24Cited by
13References
30Claims
0Family size
Inventor
Key dates
| Filing date | Apr 15, 1991 |
| Grant date | May 18, 1993 |
| Priority date | — |
| Expiry date | Apr 15, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine system with combustion chamber (11) of the upper-half-clam-shell type in which is generated both swirl and squish and microscale turbulence near the center of the chamber where is located a toroidal gap spark plug (18) fired according to a lean-burn-timing prescription to deliver rapidly moving spark pulses (24) of high power and energy into a very lean reverse stratified mixture further diluted with exhaust gas residual for further reducing NOx emissions while maintaining low HC emissions and high engine efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.