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Stratified Torch Ignition Engine: Raw Emissions
Technical Paper
2016-36-0477
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
A global effort has been made by the scientific community to promote significant reduction in vehicle engine out-emission. To comply with this goal a stratified torch ignition (STI) engine is built from a commercial existing baseline engine. In this system, combustion starts in a pre-combustion chamber, where the pressure increase pushes the combustion jet flames through calibrated nozzles to be precisely targeted into the main chamber. These combustion jet flames are endowed with high thermal and kinetic energy, being able to generate a stable lean combustion process. The high kinetic and thermal energy of the combustion jet flame results from the load stratification. The engine out-emissions of CO, HC and CO2 of the STI engine are presented, analyzed and compared with the baseline engine. The STI engine showed a significant decrease in the specific emissions of CO and CO2. On the other hand, HC specific emission increased due to wall wetting from the fuel hitting in the precombustion chamber wall.
Authors
- Fernando Antonio Rodrigues Filho - Centro Federal de Educação Tecnológica de Minas Gerais
- Alysson Fernandes Teixeira - Centro Federal de Educação Tecnológica de Minas Gerais
- José Guilherme Coelho Baêta - Universidade Federal de Minas Gerais
- Márcio Expedito Guzzo - Centro Federal de Educação Tecnológica de Minas Gerais
- Marcelo Suman Silva Assis - Pontifícia Universidade Católica de Minas Gerais
Citation
Filho, F., Teixeira, A., Baêta, J., Guzzo, M. et al., "Stratified Torch Ignition Engine: Raw Emissions," SAE Technical Paper 2016-36-0477, 2016, https://doi.org/10.4271/2016-36-0477.Also In
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