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热词
    • 5. 发明授权
    • Swirl generating arrangement for an internal combustion engine
    • 用于内燃机的旋流发生装置
    • US4465034A
    • 1984-08-14
    • US211366
    • 1980-11-28
    • Saburo Tsutsumi
    • Saburo Tsutsumi
    • F02B31/00F02B31/06
    • F02B31/06Y02T10/146
    • A rectangular vane is pivotally disposed in a rectangular cross-sectioned portion of an induction passage and operatively connected to a device such as the throttle valve of the engine. The vane accelerates the incoming charge and shapes it into a rectangular cross-sectioned jet stream having a flow component maximized in a plane normal to the cylinder axis. The induction passage in which the vane is disposed is oriented with respect to the cylinder so that the incoming jet stream enters the combustion chamber tangentially with respect to the wall of said cylinder to thereafter swirl about the combustion chamber. The strong horizontal (with respect to the cylinder axis) flow component ensures that the swirl will persist till the end of the compression stroke of the engine hence increasing the flame propagation speed which extends the lean burn limit and EGR tolerance of the engine.
    • 矩形叶片枢转地设置在导入通道的矩形横截面部分中并且可操作地连接到诸如发动机的节流阀的装置。 叶片加速进入的电荷并将其形成为具有在垂直于气缸轴线的平面中最大化的流动分量的矩形横截面喷射流。 其中设置叶片的吸入通道相对于气缸定向,使得入射的喷射流相对于所述气缸的壁切向进入燃烧室,之后围绕燃烧室旋转。 强水平(相对于气缸轴线)的流动部件确保涡流将持续直到发动机的压缩冲程结束,从而增加火焰传播速度,其延长了发动机的稀燃限制和EGR容限。