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Application of Gas Dissolved in Fuel in the Aspect of a Hypocycloidal Pump Design

Author

Listed:
  • Maciej Bajerlein

    (Institute of Combustion Engines and Powertrains, Poznan University of Technology, 61-138 Poznan, Poland)

  • Wojciech Karpiuk

    (Institute of Combustion Engines and Powertrains, Poznan University of Technology, 61-138 Poznan, Poland)

  • Rafał Smolec

    (Institute of Combustion Engines and Powertrains, Poznan University of Technology, 61-138 Poznan, Poland)

Abstract

The advancement of modern injection systems of diesel engines is related to a constant increase in the injection pressures generated by injection pumps. This translates into an improvement of the engine operation indexes, including the emission-related ones. Such an approach brings a series of problems related to the design, construction and durability of the injection system. Therefore, the authors asked whether the current market trend in injection systems is the only appropriate path to be taken. When searching for the answer, the authors decided to propose an innovative concept consisting of dissolving exhaust gas in diesel fuel with the use of an injection pump. Such a saturated solution, when flowing out of the injection nozzle, begins the process of releasing the gas dissolved in the fuel. This has a positive impact on the atomization process, hence the process of combustion. The aim of this paper stems from the previously performed research. Due to the nature of the phenomenon, it was necessary to propose a new design for the injection pump. For correct selection of the dimensions of the pumping section, it was of key importance to determine the coefficient of solubility and the bulk modulus of the solution of diesel fuel and exhaust gas. Aside from the description of the applied method and the results of the direct measurements, this paper presents the yet undescribed results of the measurements of the coefficient of solubility of different concentrations of exhaust gas in diesel fuel. The authors also investigated the influence of the amount of exhaust gas dissolved in the fuel on the bulk modulus of the solution. The final part of the paper is a description of a proprietary design of a hypocycloidal injection pump. The application of the innovative drive allows a correct dissolution of exhaust gas in the fuel.

Suggested Citation

  • Maciej Bajerlein & Wojciech Karpiuk & Rafał Smolec, 2022. "Application of Gas Dissolved in Fuel in the Aspect of a Hypocycloidal Pump Design," Energies, MDPI, vol. 15(23), pages 1-18, December.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:23:p:9163-:d:992013
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    References listed on IDEAS

    as
    1. Feng, Renhua & Li, Guanghua & Sun, Zhengwei & Hu, Xiulin & Deng, Banglin & Fu, Jianqin, 2023. "Potential of emission reduction of a turbo-charged non-road diesel engine without aftertreatment under multiple operating scenarios," Energy, Elsevier, vol. 263(PB).
    2. Maciej Bajerlein & Wojciech Karpiuk & Rafał Smolec, 2021. "Use of Gas Desorption Effect in Injection Systems of Diesel Engines," Energies, MDPI, vol. 14(1), pages 1-22, January.
    3. Małgorzata Basińska & Katarzyna Ratajczak & Michał Michałkiewicz & Paweł Fuć & Maciej Siedlecki, 2021. "The Way of Usage and Location in a Big City Agglomeration as Impact Factors of the Nurseries Indoor Air Quality," Energies, MDPI, vol. 14(22), pages 1-27, November.
    4. Miłosław Kozak & Piotr Lijewski & Marek Waligórski, 2022. "Exhaust Emissions from a Hybrid City Bus Fuelled by Conventional and Oxygenated Fuel," Energies, MDPI, vol. 15(3), pages 1-15, February.
    Full references (including those not matched with items on IDEAS)

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