研究目的
Investigating the use of LASER spark plug systems in petrol engines to control the in-cylinder combustion process, improve engine efficiency, and reduce pollutant emissions.
研究成果
The use of LASER spark plugs can decrease specific fuel consumption and reduce exhaust gases, particularly nitrogen oxides, but may lead to a reduction in engine power. The study also highlights the limitations of using the variation coefficient to estimate cyclic dispersion.
研究不足
High system costs and lack of commercial availability of LASER spark plug systems.
1：Experimental Design and Method Selection:
The study utilized a LASER spark plug device on a CFR Octane Rating Unit Engine and a Dacia Single Cylinder SI Engine to compare performance with classical spark plugs.
2：Sample Selection and Data Sources:
Engines were operated under specific conditions (speed, load) to gather data on pressure, combustion, and emissions.
3：List of Experimental Equipment and Materials:
LASER spark plug device (Nd:YAG/Cr4+:YAG ceramic structure), CFR Octane Rating Unit Engine, Dacia Single Cylinder SI Engine.
4：Experimental Procedures and Operational Workflow:
Engines were tested with both LASER and classical spark plugs under varying air-fuel mixtures and ignition advances.
5：Data Analysis Methods:
Analysis of pressure curves, cyclic dispersion, and pollutant emissions to evaluate performance differences.
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