TURBOMACHINE BLADE COVER PLATE HAVING RADIAL COOLING GROOVE
    3.
    发明公开
    TURBOMACHINE BLADE COVER PLATE HAVING RADIAL COOLING GROOVE 审中-公开
    带有径向冷却槽的涡轮机叶片盖板

    公开(公告)号:EP3179032A1

    公开(公告)日:2017-06-14

    申请号:EP16200716.5

    申请日:2016-11-25

    摘要: A turbomachine blade may include an airfoil (122) and a shank (124) coupled to the airfoil. The shank may include a cover plate (132) having a first circumferential face and a second, opposing circumferential face. A radial cooling groove (250) is positioned in the first circumferential face and is configured to allow a cooling fluid to pass from a first radial position to a second, different radial position relative to the platform. The radial cooling groove (250) provides cover plate and shank cooling. In addition, the radial cooling groove may deliver fluid for purging gaps between blade platforms and cover plates, which prevents the ingestion of hot gas from the turbine flowpath.

    摘要翻译: 涡轮机叶片可以包括翼型件(122)和联接到翼型件的杆(124)。 柄可以包括具有第一圆周面和第二相对圆周面的盖板(132)。 径向冷却凹槽(250)位于第一圆周面中,并构造成允许冷却流体相对于平台从第一径向位置传递到第二不同径向位置。 径向冷却槽(250)提供盖板和柄冷却。 另外,径向冷却槽可以输送流体以清除叶片平台和盖板之间的间隙,这防止了从涡轮流道摄入热气。