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    • 6. 发明授权
    • Molten metal pump with vaned impeller
    • 带叶轮的熔融金属泵
    • US5586863A
    • 1996-12-24
    • US468378
    • 1995-06-06
    • Ronald E. GilbertGeorge S. MordueChris T. Vild
    • Ronald E. GilbertGeorge S. MordueChris T. Vild
    • B22D35/00F04D7/06F04D29/22
    • F04D29/2216F04D29/22F04D7/065
    • A molten metal pump having an elongated shaft with an impeller disposed adjacent the end of the shaft and a means for rotating the shaft. The impeller is formed with an imperforate substantially circular base surrounded by a bearing and has a surface facing toward the shaft. At least two imperforate vanes are connected to and extend substantially perpendicular from the surface and radially from the shaft or a hub securing the shaft toward a peripheral portion of the base. The vanes are spaced apart at terminal inlet ends along their entire radial dimension to create an inlet area comprised of the axial opening between adjacent vanes at the terminal ends and an outlet area comprised of a radial opening between adjacent vanes along the axial direction of the vanes. Each vane has a leading edge with a distal portion adjacent the periphery of the base portion which forms an angle of less than about 100.degree. relative to a tangent to said circular base drawn at the center of the vane.
    • 一种具有细长轴的熔融金属泵,其具有邻近轴的端部设置的叶轮和用于旋转轴的装置。 叶轮形成有由轴承围绕的无孔大致圆形的基部,并且具有面向轴的表面。 至少两个无孔叶片从表面和径向基本上垂直于轴或者将轴固定到基部的周边部分的轮毂。 叶片沿着其整个径向尺寸在末端入口端处间隔开以形成入口区域,该入口区域包括在末端处的相邻叶片之间的轴向开口,以及由沿着叶片的轴向方向的相邻叶片之间的径向开口 。 每个叶片具有前缘,其远端部分邻近基座部分的周边,相对于在叶片中心处绘制的所述圆形基部的切线形成小于约100度的角度。