An experimental study on RP-3 jet fuel injection on a common rail injection system

Zhao, Tianfeng; Wu, Yisheng; Duan, Yaozong; Huang, Zhen; Han, Dong

doi:10.1007/s11771-022-5079-5

Cited by 1 publication

(1 citation statement)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast to the traditional diesel engine fuel injection system, high-pressure common rail injection systems are widely used in various diesel engines because of their capacity for the flexible adjustment of injection pressure, independent and flexible control of injection timing and quantity, and high control accuracy, and they can effectively improve the economic aspects, power, and emissions of diesel engines [6][7][8][9][10]. In high-pressure common rail systems for diesel engines, the common rail pipe [11,12], as an important energy storage element in the common rail system, has an important impact on the control of the rail pressure fluctuations, common rail pressure and fuel injection quantity.…”

Section: Introductionmentioning

confidence: 99%

Study of the Optimization of Rail Pressure Characteristics in the High-Pressure Common Rail Injection System for Diesel Engines Based on the Response Surface Methodology

Li,

Yuan,

et al. 2023

Processes

View full text Add to dashboard Cite

This paper establishes a mathematical model of the high-pressure common rail injection system used in diesel engines according to the parameters of its key components, and AMESim 2020 software was used to establish a simulation model of the common rail injection system used in diesel engines. The simulation model mainly includes a high-pressure oil pump model, a common rail pipe model, and a model of four injectors. This paper also describes an experimental analysis of the accuracy of the established simulation model. Through a simulation analysis of the system rail’s pressure fluctuation and pressure characteristics, it was concluded that the length of the common rail pipe, the diameter of the common rail pipe, and the inner diameter of the high-pressure fuel pipes are important influencing parameters for the rail pressure characteristics of the system. In this study, according to the original common rail pipe and high-pressure fuel pipe model, a response surface methodology was used to optimize and analyze the parameters of the common rail pipe and high-pressure fuel pipes, and the optimal size parameters for the common rail pipe and high-pressure fuel pipes were obtained with the minimum rail pressure fluctuations and the average rail pressure setpoint. After the optimization, the pressure for the common rail pipe of the high-pressure common rail system was increased by 0.82%, the pressure fluctuation was reduced by 21.66%, the injection pressure was increased by 1.15%, the single injection volume was increased by 0.86%, and its fuel injection characteristics were significantly improved.

show abstract