A fiber optic instrumented spark plug was used to make time-resolved measurements of the fuel vapor concentration history near the spark gap in a four-valve DISI engine. Four different bulk flow were ...

SAE International Journal of Engines, Vol. 10, No. 3 (June 2017), pp. 917-927 (11 pages) ABSTRACT High speed, time resolved Particle Image Velocimetry (PIV) diagnostics was applied to an optical SI ...