Automotive Innovation ›› 2021, Vol. 4 ›› Issue (2): 215-226.doi: 10.1007/s42154-020-00133-x
Experimental Investigation of the Rail Pressure Fluctuations Correlated with Fuel Properties and Injection Settings
Carlo Coratella1 · Lewis Parry1 · Yanfei Li2 · Hongming Xu1,2
- 1. School of Mechanical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; 2. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China
Experimental Investigation of the Rail Pressure Fluctuations Correlated with Fuel Properties and Injection Settings
Carlo Coratella1 · Lewis Parry1 · Yanfei Li2 · Hongming Xu1,2
- 1. School of Mechanical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; 2. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, China
摘要： Injection-induced rail pressure fluctuations are proven to cause nonuniform spray development. These fluctuations are also responsible for generating lower injection pressures, to the detriment of jet penetration length and break-up timing. Despite the vast literature dealing with such issues, several aspects of rail pressure fluctuations remain unclear. Additionally, the need for compliance with the emission legislation has shed light on the potential of alternative fuels, which represent a pathway for sustainable mobility. This scenario has motivated the present study dealing with the assessment of the time history of rail pressure correlated with fuel properties. Tests have been performed using a last-generation common rail injection equipment under various injection settings, employing diesel and 2-methylfuran-diesel blend. This paper describes the research activity and aims to provide new insights into the correlation of rail pressure fluctuations with fuel properties.