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Impact of intake valve strategies on fuel consumption and knock tendency of a spark ignition engine

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  • Teodosio, Luigi
  • Pirrello, Dino
  • Berni, Fabio
  • De Bellis, Vincenzo
  • Lanzafame, Rosario
  • D'Adamo, Alessandro

Abstract

Nowadays various technical solutions have been proposed in order to improve the performance of spark-ignition internal combustion engines both at part and full load operations, especially in terms of Brake Specific Fuel Consumption (BSFC). Among the most advanced technical solutions, a fully flexible valve control system (VVA – Variable Valve Actuation) appears a very robust and reliable approach to attain the above aim. In fact advanced valve strategies, such as Early Intake Valve Closure (EIVC) and Late Intake Valve Closure (LIVC), proved to be an effective way to decrease the fuel consumption: at part load through a reduction of the pumping work and, at high load, through a knock mitigation and an over-fueling reduction.

Suggested Citation

  • Teodosio, Luigi & Pirrello, Dino & Berni, Fabio & De Bellis, Vincenzo & Lanzafame, Rosario & D'Adamo, Alessandro, 2018. "Impact of intake valve strategies on fuel consumption and knock tendency of a spark ignition engine," Applied Energy, Elsevier, vol. 216(C), pages 91-104.
  • Handle: RePEc:eee:appene:v:216:y:2018:i:c:p:91-104
    DOI: 10.1016/j.apenergy.2018.02.032
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    References listed on IDEAS

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    3. Tian, Zhi & Zhen, Xudong & Wang, Yang & Liu, Daming & Li, Xiaoyan, 2020. "Combustion and emission characteristics of n-butanol-gasoline blends in SI direct injection gasoline engine," Renewable Energy, Elsevier, vol. 146(C), pages 267-279.
    4. Luca Marchitto & Cinzia Tornatore & Luigi Teodosio, 2020. "Individual Cylinder Combustion Optimization to Improve Performance and Fuel Consumption of a Small Turbocharged SI Engine," Energies, MDPI, vol. 13(21), pages 1-21, October.
    5. Fabio Bozza & Vincenzo De Bellis & Enrica Malfi & Luigi Teodosio & Daniela Tufano, 2020. "Optimal Calibration Strategy of a Hybrid Electric Vehicle Equipped with an Ultra-Lean Pre-Chamber SI Engine for the Minimization of CO 2 and Pollutant Emissions," Energies, MDPI, vol. 13(15), pages 1-25, August.
    6. Zhou, Xianjie & Chen, Zheng & Zou, Peng & Liu, Jingping & Duan, Xiongbo & Qin, Tao & Zhang, Shiheng & Shen, Dazi, 2020. "Combustion and energy balance analysis of an unthrottled gasoline engine equipped with innovative variable valvetrain," Applied Energy, Elsevier, vol. 268(C).
    7. García, Antonio & Monsalve-Serrano, Javier & Martínez-Boggio, Santiago & Wittek, Karsten, 2020. "Potential of hybrid powertrains in a variable compression ratio downsized turbocharged VVA Spark Ignition engine," Energy, Elsevier, vol. 195(C).
    8. Li, Yangtao & Khajepour, Amir & Devaud, Cécile, 2018. "Realization of variable Otto-Atkinson cycle using variable timing hydraulic actuated valve train for performance and efficiency improvements in unthrottled gasoline engines," Applied Energy, Elsevier, vol. 222(C), pages 199-215.
    9. d'Adamo, A. & Breda, S. & Berni, F. & Fontanesi, S., 2019. "The potential of statistical RANS to predict knock tendency: Comparison with LES and experiments on a spark-ignition engine," Applied Energy, Elsevier, vol. 249(C), pages 126-142.
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