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Design and Construction Methodology of a Stratified Torch Ignition System
Technical Paper
2013-36-0562
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
It developed a design and construction methodology of a stratified charge torch ignition system for an Otto engine aiming fuel consumption and pollutant emission reduction. The torch ignition system is made of a combustion pre-chamber equipped with a direct fuel injector, an air injector and a spark plug. Fuel is directly injected in the pre-chamber aiming the formation of a lightly rich air fuel mixture. The combustion process starts in the pre-chamber and as the pressure rises, combustion jet flames are produced through interconnection nozzles into the main chamber. The high thermal energy of the jet flames reduces the combustion time, increases the combustion efficiency and allows the engine to efficiently burn lean air fuel mixture of several kinds of fuel in the main chamber, even those that are difficult to ignite. After the combustion takes place in the pre-chamber, air is also injected to help the exhaust process of the combustion products of the previous cycle. Theoretical calculus was made to determine the main geometrical parameters of the pre-chamber, such as volume and the number and diameter of the interconnection nozzles. Since the system designed is equipped with two independent fuel injection systems, one for the pre-chamber and another for the main chamber, it is possible to burn an stoichiometric air fuel mixture in the pre-chamber and a lean air fuel mixture of a different fuel in the main chamber. Therefore a multifuel stratified charge torch ignition engine is obtained.
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Moreira, T., Filho, F., Gonçalves, L., Barros, J. et al., "Design and Construction Methodology of a Stratified Torch Ignition System," SAE Technical Paper 2013-36-0562, 2013, https://doi.org/10.4271/2013-36-0562.Also In
References
- MOREIRA , T. A. A Projeto e Construção de um Sistema de Ignição por Lança Chamas com carga estratificada para Motor do Ciclo Otto Belo Horizonte Dissertação de Mestrado Escola de Engenharia, Universidade Federal de Minas Gerais 2009
- HEYWOOD , J. B. Internal combustion engine fundamentals 1 New York McGraw-Hill, Inc. 1988 930
- BAPTISTA , B. S. Desenvolvimento De Um Sistema De Ignição Por Lança-Chamas Para Motor Do Ciclo Otto Belo Horizonte 2007 Dissertação de Mestrado Escola de Engenharia, Universidade Federal de Minas Gerais
- MAHLE POWERTRAIN http://www.mahlepowertrain.com/C1257126002DFC22/vwContentByKey/W28MC9UR841STULEN Acess in Mai. 2013
- DATE , T. Yagi , S. , Ishizuya , A. e Fujii , I. Research and development of the Honda CVCC engine Paper SAE 740605 18 1974
- WOLFF , D. ; TAMURA , M. ; TAI , H. ; SAKURAI , T. Looking into the prechamber of a lean-burn gas engine JSME International Journal 40 1997
- RYU , H. , Chtsu , A. e Asanuma , T. Effect of torch jet direction on combustion and performance of a prechamber spark-ignition engine Paper SAE 870167 1987
- ADAMS , T. G. Theory and evaluation of auxiliary combustion (torch) chambers Paper SAE 780631 19 1978
- MAVINAHALLY , N. S. , Assanis , D. N. , Govinda Mallan , K. R. e Gopalakrishnan , K. V. Torch ignition: Ideal for lean burn premixed-charge engines Journal of Engineering for Gas Turbines and Power 116 793 798 Out. 1994
- WELTY , J. R. ; WILSON , R. E. ; WICKS , C. E. Fundamentals of momentum heat and mass transfer 2 New York John Wiley & Sons 1976
- ZUCROW , M. J. ; HOFFMAN , J. D. Gas dynamics New York John Wiley & Sons 1976 I II
- KATAOKA , K. , HIKAKO , Y. Combustion process in a divided chamber spark ignition engine Bulletin of the JSME 25 210 1946 1952 Dez. 1982
- NGK http://www.ngkntk.com.br/velas/default.html Acess in: Mai 2013