Transient states analysis of CI engine injectors with the use of optical methods

Scientific Conference on Automotive Vehicles and Combustion Engines 2016

Skowron, M.^1 ; Pielecha, I.^1 ; Wislocki, K.^1

Institute of Combustion Engines and Transport, Poznan University of Technology, Piotrowo 3 Street, Poznan, Poland^1

关键词: Constant volume chamber;    Data acquisition system;    Diesel fuel injectors;    Electrical control;    Injection durations;    Injection parameters;    Transient states analysis;    Variable conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/148/1/012085/pdf
DOI  :  10.1088/1757-899X/148/1/012085

来源: IOP

【 摘 要 】

The main aim of research was to define real injection time delay against the time of electrical control signal for piezoelectric and electromagnetic diesel fuel injectors. The second objective of this work was the evaluation of influence of typical injection parameters on this delay. The analysis was focused on the occurrence of appropriate control signals recorded with the use of fast-varying data acquisition system and compared with the data recorded by high speed camera. The tests were conducted in constant volume chamber for different injector types used in combustion engines with direct injection of diesel fuel. The tests were performed under variable conditions: different fuel pressure, air back-pressure and injection duration time.