Open AccessAn Experimental Approach and A Signal Processing Method with the Common Rail Injection System of a Diesel Engine
Author(s) -
Thin Quynh Nguyen,
A. Y. Dunin,
М. Г. Шатров
Publication year - 2021
Publication title -
international journal of online and biomedical engineering
Language(s) - English
Resource type - Journals
ISSN - 2626-8493
DOI - 10.3991/ijoe.v17i14.27401
Subject(s) - nozzle , fuel injection , accumulator (cryptography) , common rail , body orifice , mechanics , diesel engine , automotive engineering , fuel supply , diesel fuel , spark plug , signal (programming language) , materials science , nuclear engineering , environmental science , engineering , mechanical engineering , computer science , physics , algorithm , programming language
This paper presents a method and results, which studies influences of the fuel flow mode on the pressure oscillation in the volumes of the accumulator fuel system. The fuel is supplied through nozzle holes into a constant volume chamber, which is installed a jet for fuel discharge into the low-pressure line. Results show that the increase in the base pressure value of the fuel accumulator leads to the rise in the slope of the leading edge of the differential characteristics and the maximum dQ/dt value changes closer to the beginning moment of the fuel injection process. At the same time, the control pressure value is a significant parameter that greatly influences the shape of the injection characteristic. In addition, when using the drain orifices with different diameters, received values and differential characteristics vary during the fuel supply process. The differential characteristics of the study are the basis for implementing fuel injection control solutions.