The Effects of Fluid Motions on Combustion in a Prechamber Bomb

760162

02/01/1976

Event
1976 Automotive Engineering Congress and Exposition
Authors Abstract
Content
A two-chamber bomb was used to investigate the effect of fluid motions on combustion characteristics, in particular exhaust emissions. Variations in prechamber volume, connecting orifice geometry, air-fuel charge stratification, and initial turbulence of the charge were examined. Tests were run over a wide air-fuel ratio range.
High speed motion pictures were used to study flame propagation and fluid motions. The results show that when the strength of the turbulent jet from the prechamber is varied over a significant range, there is little or no effect on the emissions of oxides of nitrogen (NOx) over the entire air-fuel ratio range. Hydrocarbon (HC) emissions were found to increase with jet strength in the portion of the lean air-fuel range of most interest (i.e., around 17:1). However, for very lean mixtures the trend was reversed.
Meta TagsDetails
DOI
https://doi.org/10.4271/760162
Pages
28
Citation
Klomp, E., and Deboy, G., "The Effects of Fluid Motions on Combustion in a Prechamber Bomb," SAE Technical Paper 760162, 1976, https://doi.org/10.4271/760162.
Additional Details
Publisher
Published
Feb 1, 1976
Product Code
760162
Content Type
Technical Paper
Language
English