Studies on Spray and Combustion Characteristics of Throttle Type Nozzle Used in a Swirl-Chamber Diesel Engine
- Delivery
- Available on this site
- Format
- Price
- Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880
- Publication code
- 20229068
- Paper/Info type
- SETC
No.2022-32-0068
- Pages
- 1-11(Total 11 p)
- Date of publication
- Oct 2022
- Publisher
- JSAE
- Language
- English
- Event
- SETC2022
Detailed Information
| Author(E) | 1) Zenta Sudo, 2) Beini Zhou, 3) Yuma Hozen, 4) Jin Kusaka, 5) Kenya Ajiro, 6) Tomohiro Koga |
|---|---|
| Affiliation(E) | 1) Waseda Univercity, 2) Waseda Univercity, 3) Waseda Univercity, 4) Waseda Univercity, 5) Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., 6) Mitsubishi Heavy Industries, Ltd. |
| Abstract(E) | Among industrial engines, vortex chamber diesel engines are mainly used in small engines with output of less than 19 kW, and they employ an indirect injection system in which fuel is injected into a sub-chamber called a vortex chamber. The throttle-type nozzle used in swirl-chamber diesel engines is expected to change its spraying behavior depending on ambient conditions because the pressure fluctuations in the nozzle cause the needle valve to lift, and the injection amount is controlled by the amount of lift of the needle valve. In addition, the dimensions of the vortex chamber of a vortex chamber diesel engine are smaller than the spray development distance, and wall impingement of the spray is expected. In this study, spraying and combustion experiments were conducted using a constant volume chamber to understand the behavior of the spray from a throttle-type nozzle. Then, based on the obtained data, we developed a numerical simulation model to reproduce the hollow spraying behavior of a throttle nozzle. |
