• Home
  • About CICEE
  • Editorial Board
  • Publication Ethics
  • 中文

    • Research on Different Altitude Working Characteristics of Aviation Piston Engine Based on Variable High Pressure Supercharging Method
    DOI：10.13949/j.cnki.nrjgc.2024.02.006
    Key Words:compression combustion aviation piston engine  different altitudes  twin-variable geometry turbocharger  performance  power recovery
    Author NameAffiliationE-mail
    CHEN Guisheng Faculty of Transportation Engineering， Kunming University of Science and Technology， Kunming 650500， China cgs_yly@163.com 
    HU Shan Faculty of Transportation Engineering， Kunming University of Science and Technology， Kunming 650500， China 2512610127@qq.com 
    SHEN Yinggang* City College， Kunming University of Science and Technology， Kunming 650051， China 2512610127@qq.com 
    SUN Min Faculty of Transportation Engineering， Kunming University of Science and Technology， Kunming 650500， China 2681469327@qq.com 
    GONG Hang Engineering Training Centre， Kunming University of Science and Technology， Kunming 650504， China 834319423@qq.com 
    YANG Jie Faculty of Civil Aviation and Aeronautics， Kunming University of Science and Technology， Kunming 650500， China 328516727@qq.com 
    Hits: 315
    Download times: 136
    Abstract:Using an inline four stroke compression ignition aviation piston engine as the research model， an one-dimensional thermodynamic model was constructed by using GT Power. Firstly， the effects of fixed cross-section turbocharging（FGT）， variable geometry turbocharging（VGT）， and two-stage variable geometry turbocharging（TVGT） on engine performance were compared and studied at different altitudes. Then， based on the constructed TVGT turbocharging system， the influence of high and low pressure VGT blade opening on the operating characteristics of the engine under variable altitude conditions was explored. The results show that under different altitude and speed conditions， the engine with a TVGT turbocharging system has better altitude adaptability. For the TVGT system， high power and economy can be achieved at different altitudes when the opening of the high-pressure stage VGT blades is in the range of ［0.2，0.4］， and the opening of the low-pressure stage VGT blades is in the range of ［0.6，0.8］. By optimizing the opening of high and low pressure VGT blades， a power recovery target of 106.8% can be achieved at an altitude of 6 000 m under cruising conditions at a speed of 3 397 r/min， which can meet the power recovery requirements of the engine for maximum working altitude.
    View Full Text  View/Add Comment  Download reader