EFFECTS OF THE THROTTLE OPENING RATIO AND THE INJECTION TIMING OF CNG ON THE COMBUSTION CHARACTERISTICS OF A DI ENGINE

HA, J. Y.; PARK, J. S.; KANG, J. H.

doi:2010.11.1.11

International Journal of Automotive Technology > Volume 11(1); 2010 > Article

Engine, Emission Technology

International Journal of Automotive Technology 2010;11(1): 11-17.
doi: https://doi.org/10.1007/s12239-010-0002-8

EFFECTS OF THE THROTTLE OPENING RATIO AND THE INJECTION TIMING OF CNG ON THE COMBUSTION CHARACTERISTICS OF A DI ENGINE

J. Y. HA¹, J. S. PARK¹, J. H. KANG²

¹Dong-A University
²Kyoto University

ABSTRACT

We investigated the effects of the fuel injection timing - both for early and late injection - in conjunction with the throttle opening ratio on the fuel-air mixing characteristics, engine power, combustion stability and emission characteristics of a DI CNG spark engine and control system that had been modified and designed according to the author

Key Words: Direct injection, CNG, Stratified charge, Injection timing, Throttle opening ratio

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