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    • 8. 发明授权
    • Blood pump and pump unit
    • 血泵和泵单元
    • US08114008B2
    • 2012-02-14
    • US12810083
    • 2009-01-22
    • Tatsuya HidakaTakeshi OkuboYasuharu YamamotoToshiyuki OsadaMasashi Tagawa
    • Tatsuya HidakaTakeshi OkuboYasuharu YamamotoToshiyuki OsadaMasashi Tagawa
    • A61M1/10
    • F04D29/047A61M1/10A61M1/101A61M1/1015A61M1/1017A61M1/1036F04D13/026F04D29/048
    • Provided are a magnetic coupling as an axial bearing including a driven magnet (11B3) that is a permanent magnet provided to a rotating body (11) inside a casing (12) and a drive magnet (23A) that is a permanent magnet placed face to face with the driven magnet in a radial direction of the rotating body outside the casing to be magnetically coupled with the driven magnet, a driving motor (22) that rotatably drives the drive magnet about an axis (P) of the rotating body, a radial bearing that is a dynamic bearing having annular bearing surfaces (12B1, 11B1) centering on the axis on an inner wall of the casing and the rotating body, each of the annular bearing surfaces being arranged with a gap between the drive magnet and the driven magnet in the radial direction of the rotating body, and a closed impeller (11A) including a front shroud (11A1) arranged on a front side in the axis direction in the rotating body, a rear shroud (11A2) arranged on a rear side in the axis direction of the front shroud, and a vane (11A3) arranged between the front shroud and the rear shroud.
    • 提供一种作为轴向轴承的磁性联轴器,其包括作为设置在壳体(12)内部的旋转体(11)的永磁体的驱动磁体(11B3)和作为永久磁铁的驱动磁体(23A) 驱动电动机(22),其围绕旋转体的轴线(P)可旋转地驱动驱动磁体,径向 轴承,其具有以壳体内壁和旋转体为轴心的环状支承面(12B1,11B1)的动态轴承,每个环形支承面在驱动磁体和从动磁体之间配置有间隙 在旋转体的径向方向上形成有在前述旋转体的轴线方向配置的前罩(11A1)的封闭式叶轮(11A),在后侧设置有后罩(11A2) 轴的方向 以及布置在前护罩和后护罩之间的叶片(11A3)。