IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v327y2025ics0360544225020730.html
   My bibliography  Save this article

Design and research of high-tumble scavenging system for spark ignition two-stroke aviation heavy fuel engine

Author

Listed:
  • Zhao, Zhenfeng
  • Zhang, Tianyu
  • Zhang, Shuo
  • Wang, Lei

Abstract

The spark ignition two-stroke heavy fuel piston engine has significant application prospects in the unmanned aerial vehicle field due to its high power-to-weight ratio, low maintenance costs, and enhanced fuel safety. However, challenges such as the difficulty of heavy fuel evaporation, improper mixing, and two-stroke scavenging short circuits lead to serious fuel escape problems, which negatively affect the engine's economy and power performance. To address these issues, it is essential to ensure that fuel evaporation and mixing in the cylinder occur within a very short time. In this study, a high-tumble scavenging system for a spark ignition two-stroke aviation heavy fuel engine is proposed. The impact of key structural parameters of the cross-flow port on cylinder flow and mixing is analyzed. The results demonstrate that the total intake volume of the high-tumble scavenging system is 8.5 % greater than that of the original scavenging system, with a 4.1 % improvement in scavenging efficiency, a 24 % reduction in residual exhaust gas mass, and a 14.3 % increase in in-cylinder tumble intensity, leading to improved fuel evaporation and mixing.

Suggested Citation

  • Zhao, Zhenfeng & Zhang, Tianyu & Zhang, Shuo & Wang, Lei, 2025. "Design and research of high-tumble scavenging system for spark ignition two-stroke aviation heavy fuel engine," Energy, Elsevier, vol. 327(C).
    • Handle: RePEc:eee:energy:v:327:y:2025:i:c:s0360544225020730
    DOI: 10.1016/j.energy.2025.136431
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544225020730
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2025.136431?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:327:y:2025:i:c:s0360544225020730. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.