Two-Stage Combustion for Low Emissions without Catalytic Convertors
* 760759
The concept of using two-stage combustion in a spark ignition engine has been tested in a single cylinder CFR engine. The engine was operated over an equivalence ratio range of 1.5 to 2.2 to evaluate the first stage of combustion. The product gas was analyzed for H2, CO, CO2, and hydrocarbons.
An atmospheric burner was operated with gasoline over the same equivalence ratio range of 1.5-2.2, and the resulting product gases were then burned in the CFR engine to test the second stage of combustion. Emissions of NOx, HC and CO of 0.1, 0.1, and 5 gm/IHP-hr were measured respectively. The engine indicated efficiency for the two-stage mode was essentially the same as for the single-stage mode.
Citation: Houseman, J. and Cerini, D., "Two-Stage Combustion for Low Emissions without Catalytic Convertors*," SAE Technical Paper 760759, 1976, https://doi.org/10.4271/760759. Download Citation
Author(s):
John Houseman, D. J. Cerini
Affiliated:
Jet Propulsion Laboratory, California Inst. of Technology
Pages: 10
Event:
1976 Automobile Engineering Meeting
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Spark ignition engines
Combustion and combustion processes
Hydrocarbons
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