Study of Pre-chamber Jet Combustion Behavior using a Small Two-stroke Optically Accessible Engine
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20229076
- Paper/Info type
- SETC
No.2022-32-0076
- Pages
- 1-7(Total 7 p)
- Date of publication
- Oct 2022
- Publisher
- JSAE
- Language
- English
- Event
- SETC2022
Detailed Information
| Author(E) | 1) Takato DEUSHI, 2) Takuma NAKA, 3) Tatsuya TSUJIGUCHI, 4) Akira IIJIMA, 5) Shiro YAMAGUCHI, 6) Minoru KUROIWA, 7) Kuniyoshi ETO |
|---|---|
| Affiliation(E) | 1) Nihon University, 2) Nihon University, 3) Nihon University, 4) Nihon University, 5) Yamabiko Corporation, 6) Yamabiko Corporation, 7) Yamabiko Corporation |
| Abstract(E) | A small 2-stroke engine can be an effective power source for an electric generator mounted on a series hybrid electric vehicle. In recent years, a technology referred to as pre-chamber jet combustion has attracted attention as a means of enhancing thermal efficiency by improving mixture ignitability. In this study, experiments were conducted to investigate differences in combustion behavior between the application of spark-ignited (SI) combustion and pre-chamber jet combustion to a small, two-stroke engine. The experimental equipment used was a two-stroke, single-cylinder, optically accessible engine with a displacement of 63.3 cm3. Differences between conventional SI combustion and pre-chamber jet combustion were examined by means of in-cylinder pressure analysis, in-cylinder combustion visualization and image processing software. The diameter of the connecting orifice of the pre-chamber was varied between two types. The results revealed that the combustion time and indicated mean effective pressure obtained with pre-chamber jet combustion were more stable compared with conventional combustion. It was also found that a linear jet combustion flow was formed with a smaller connecting orifice diameter and the combustion time was shortened, but combustion was not stable. In addition, it was found that the maximum pressure decreased with a higher jet flow velocity. |
