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Evaluation Methodology for Intake Valve and Combustion Chamber Deposits Formation on Port Injection Flexible Fuel Spark-Ignition Engines
Technical Paper
2012-36-0489
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This work presents a new methodology to evaluate intake valve and combustion chamber deposits formation on port injection flexible fuel spark-ignition engines. This test methodology was adapted from ASTM 6201 standard, using a commercial Brazilian engine that can be run with blends of gasoline and ethanol in any proportion from pure gasoline to pure ethanol.
It also describes every step of the methodology development, test conditions and the main criteria discussed by workgroup created by The National Agency of Oil, Natural Gas and Biofuels - ANP to propose a suitable standard for Brazilian spark ignition engine's fuels.
This methodology will also be used to evaluate the results of detergent dispersant additives that may comply with the compulsory Brazilian gasoline additivation that will be due at January 2014.
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Authors
Citation
de Sa, R., da Silva Mello Neto, E., and do Carmo Figueiredo, A., "Evaluation Methodology for Intake Valve and Combustion Chamber Deposits Formation on Port Injection Flexible Fuel Spark-Ignition Engines," SAE Technical Paper 2012-36-0489, 2012, https://doi.org/10.4271/2012-36-0489.Also In
References
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- Nomura, Y. Ohsawa, O. Ishiguro, T. Nakada, M. Mechanism of Intake Valve Deposit Formation Part2: Simulation Tests SAE International Congress and Exposition Detroit, Michigan, USA February 26 March 2 1990 SAE Paper # 900152
- Cheng, S. The Physical Parameters that Influence Deposit Formation on an Intake Valve International Fuels and Lubricants Meeting and Exposition San Francisco, California October 19 22 1992 SAE Paper # 922257
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- Shiblom, C. M. Schoonveld, G. A. Effect on Intake Valve Deposits of Ethanol and Additives Common to the Available Ethanol Supply SAE Internatioanl Fuels and Lubricants Meeting and Exposition Tulsa, Oklahoma, USA October 22 25 1990 SAE Paper # 902109
- ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS “Combustíveis - Medição de Depósitos em Válvulas de Admissão em Motor com Ignição por Centelha” ABNT NBR 16038 April 2012