Open AccessComparative research results of CFR Octane Rating Unit Engine and Dacia Single Cylinder SI Engine equipped with classical Spark Plug and LASER Ignition
Author(s) -
Bogdan George Done,
Ion Copae
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/568/1/012112
Subject(s) - spark plug , laser ignition , ignition system , materials science , combustion , ignition timing , spark gap , spark (programming language) , laser , cylinder , ceramic , mechanical engineering , automotive engineering , nuclear engineering , optics , composite material , computer science , electrical engineering , engineering , physics , voltage , chemistry , aerospace engineering , organic chemistry , programming language
Nowadays, research has developed new technologies for a better control of the combustion process. Among the new technologies used for Ignition and combustion control, the LASER spark plug system is defined as an innovative technology which could overcome several limitations of classical spark plug. The purpose of the paper is the experimental research of the LASER spark plug used in the spark ignition(SI) engine. Improved performance, ensuring rapid and robust combustion, depends on how the Ignition stage is achieved. An Ignition system that could provide such an enhanced combustion process is the one based on plasma generation using a Q switched solid state LASER that delivers pulses with high MW peak power. The LI device used in the current research was a LASER medium Nd:YAG/Cr4+:YAG ceramic structure (Baikowski Co., Japan) that consisted of a 8.0-mm long, 1.0-at.% Nd:YAG ceramic, optically-bonded to a Cr4+:YAG ceramic with saturable absorption. It was designed, integrated and built to resemble a classical Spark Plug and could be mounted directly on the cylinder of a CFR Octane Rating Unit Engine as well as on a Dacia Single Cylinder SI Engine which led to several results among which: indicated, mediated pressures and their wave dispersion.