| Issue |
E3S Web Conf.
Volume 522, 2024
2023 9th International Symposium on Vehicle Emission Supervision and Environment Protection (VESEP2023)
|
|
|---|---|---|
| Article Number | 01004 | |
| Number of page(s) | 12 | |
| DOI | https://doi.org/10.1051/e3sconf/202452201004 | |
| Published online | 07 May 2024 | |
Research on carbon deposition method and characterization of nozzle in direct injection gasoline engine
China Automotive Technology & Research Center Co. Ltd., China
* Corresponding author: wangshan@catarc.ac.cn
Based on Geely JLE-4G18TDB 1.8T gasoline engine stand and optical 3D profile measuring instrument, this paper explores the rapid carbon accumulation process and characterization about carbon deposition of nozzle in a direct injection gasoline engines. By using aging accelerators, cycle conditions and long-term fuel pulse width correction coefficient, rapid carbon accumulation close to actual road conditions is achieved. The carbon accumulation situation of the nozzle was mastered in the state of the engine without stopping, and the carbon accumulation characteristics of the nozzle were characterized by optical means. The volume data, three-dimensional image and carbon volume distribution map of the injector before and after carbon deposition were obtained under the condition that the carbon in the surface area of the injector was not destroyed, which played an important role in the evaluation of the gasoline purifier and purifier synergist.
Key words: Direct injection gasoline engine / Nozzle carbon deposition method / Carbon deposition characterization of nozzle
© The Authors, published by EDP Sciences, 2024
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