The magnitudes and compositions of in-cylinder tumble ratio generated by each velocity components were computed at different intake valve lifts and distances along the direction of valve axis in this paper, based on the three-dimensional velocity data measured by hot-wire anemometry at intake valve periphery of typical SI engine intake ports (horizontal and sloping directed ports) in a steady flow rig. The effect of velocity profiles at above two intake ports exit on in-cylinder tumble generation was studied, and a microscopic analytical method of evaluating tumble-generating capability of intake ports was developed according to the velocity profiles at intake valve exit area.


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    Title :

    A Study on the Mechanism of In-Cylinder Tumble Generation by Directed Intake Ports


    Additional title:

    Sae Technical Papers


    Contributors:
    Song, Chong-Lin (author) / Zhang, Chun-Run (author) / Wu, Liang-Qin (author) / Feng, Ming-Zhi (author) / Liu, Rui-Lin (author) / Li, Shu-Min (author) / An, Xiang-Bi (author) / Yu, Yi-Kun (author)

    Conference:

    1996 SAE International Fall Fuels and Lubricants Meeting and Exhibition ; 1996



    Publication date :

    1996-10-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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