Four-stroke internal combustion engine with spark ignition
US6047592A · kind A · utility
14Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1997 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Mar 31, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In order to optimize combustion in a four-stroke spark-ignition engine with direct fuel injection, the conditions of charge flow are improved by providing the top surface of each piston with two longitudinal guiding ribs located at a distance from each other and a cross-guiding rib running transversely thereto, thus providing an H-shaped configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.