Effects of a Prechamber on NOx Formation Process in the SI Engine 790389
The NOx emission of the TOYOTA LEAN BURN ENGINE is lower than that of a conventional engine due to the presence of a prechamber called a “Turbulence Generating Pot”.
The mechanism of this NOx reduction was analyzed experimentally and theoretically.
The results showed that large-scale mixing motions of burned gases were caused in the post flame region as a result of the jet flow from the prechamber. It was concluded that the reduction of NOx emission was due to the decrease of temperature gradient and lowered mean temperature of burned gases caused by these motions.
Citation: Konishi, M., Nakamura, N., Oono, E., Baika, T. et al., "Effects of a Prechamber on NOx Formation Process in the SI Engine," SAE Technical Paper 790389, 1979, https://doi.org/10.4271/790389. Download Citation
Author(s):
M. Konishi, N. Nakamura, E. Oono, T. Baika, S. Sanda
Affiliated:
Toyota Motor Co., Ltd.
Pages: 18
Event:
1979 Automotive Engineering Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Nitrogen oxides
Lean burn engines
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