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Stratified Torch Ignition Engine: Combustion Analysis
Technical Paper
2016-36-0380
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The Stratified Torch Ignition (STI) engine is capable of operating with lean mixture and low cyclic variability. These characteristic significantly decreases fuel consumption and emission levels. In the STI engine the combustion starts at a pre-combustion chamber where a stoichiometric mixture is ignited by an electrical spark. Pressure increase in the pre-combustion chamber push the combustion jet flames through a calibrated nozzle to be precisely targeted into the main chamber. These combustion jet flames endowed with high thermal and kinetic energy assures a fast and stable combustion of a lean mixture formed at the main chamber. A STI prototype were built and tested. The main combustion parameters were obtained from the in-cylinder pressure measured during the experiments. A combustion analysis is carried out to explain the significant improvement of the STI engine in regard to the baseline engine which was used as workhorse for the prototype engine construction.
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: Combustion Analysis," SAE Technical Paper 2016-36-0380, 2016, https://doi.org/10.4271/2016-36-0380.Also In
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