Improvement of Engine Transient Performance by Compressor Scroll of Turbocharger with Circumferential Non-Linear Sectional Area Distribution

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  • FUJITA Yutaka
    三菱重工業(株)　総合研究所　流体研究部　流体第三研究室
  • IWAKIRI Kenichiro
    三菱重工業(株)　総合研究所　流体研究部　流体第三研究室
  • KANZAKA Tadashi
    三菱重工業(株)　総合研究所　流体研究部　流体第三研究室
  • FURUTA Yusuke
    三菱重工エンジン&ターボチャージャ(株)　ターボ事業部　技術部　研究開発課
  • SOON Chiong Meng
    Universiti Teknologi Malaysia, Centre for Low CARbon transport in cooperation with Imperial College London（LoCARtic）
  • XIAN Tan Feng
    Universiti Teknologi Malaysia, Centre for Low CARbon transport in cooperation with Imperial College London（LoCARtic）
  • MOHAMMAD Mahadhir
    Universiti Teknologi Malaysia, Centre for Low CARbon transport in cooperation with Imperial College London（LoCARtic）
  • RAJOO Srithar
    Universiti Teknologi Malaysia, Centre for Low CARbon transport in cooperation with Imperial College London（LoCARtic）

Bibliographic Information

Other Title
  • ターボチャージャ用コンプレッサスクロールの周方向断面積分布非線形化によるエンジン過渡性能向上
  • ターボチャージャヨウ コンプレッサスクロール ノ シュウ ホウコウ ダンメンセキ ブンプ ヒセンケイカ ニ ヨル エンジン カト セイノウ コウジョウ

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Description

<p>In order to prevent global warming, improving automotive fuel economy has become one of the biggest challenges. Therefore, a lot of attention has been drawn to turbocharging technology. However,“turbo lag”which is a common phenomenon in conventional turbocharger could worsen the vehicle's drivability. To cope with such drawback, a new-concept compressor cover which has non-linear area distribution has been designed with CFD analysis. And, it is experimentally evaluated, and the result shows that the efficiency of new compressor cover at low flow condition increases by 1％. The result of on-engine performance test also shows that this new compressor cover can improve transient response by more than 60％ for low-to-medium engine speed conditions.</p>

Journal

  • Turbomachinery

    Turbomachinery 49 (12), 715-721, 2021

    Turbomachinery Society of Japan

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