Method of operating uni-flow two-cycle engine during reduced load conditions
US6062178A · kind A · utility
3Cited by
25References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | May 20, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of operating a two-cycle internal combustion engine under low load conditions. A throttle is placed at the intake air system to reduce air intake into the engine cylinders. A pump is placed in the exhaust system, such that it creates reduced pressure downstream of the exhaust valves. In this manner, when the air intake ports close, the exhaust is evacuated and the air trapped in the cylinder is reduced. This permits fuel to be reduced so that the engine may operate in a low load state without losing combustion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.