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发明授权
CN104334836B 可变几何涡轮机和包括其的涡轮增压器 有权

可变几何涡轮机和包括其的涡轮增压器
摘要：
本发明涉及一种可变几何涡轮机和包括其的涡轮增压器，所述可变几何涡轮机具有在空腔内部安装的可移动壁部的径向壁部的第一表面与涡轮机壳体的面对壁部之间所限定的环形入口通路。该径向壁部限定了与第一表面相对的第二表面。可移动壁部构件包括沿着轴向伸进空腔的环形凸缘，并且该环形凸缘支撑限定了相对的第三和第四表面的径向凸缘。该径向凸缘与空腔中的环形套筒形成密封，以便在空腔内部限定一个包含了径向的第二和第三表面的第一区域，以及在空腔内部限定一个包含了径向的第四表面的第二区域。所述第一和第二区域与分别处于径向叶片通路的上游和下游的环形入口通路的区域是流体连通的。
摘要（英）：

A variable geometry turbine has annular inlet passageway defined between a first surface of a radial wall of a movable wall mounted within a cavity and a facing wall of the turbine housing. The radial wall defines a second surface that opposes the first surface. The moveable wall member comprises an annular flange that extends axially into the cavity and supports a radial flange defining opposing third and fourth surfaces. The radial flange seals against an annular sleeve in the cavity to define a first area within the cavity which includes the radial second and third surfaces and a second area within the cavity which includes the radial fourth surface. The first and second areas are in fluid communication with regions of the annular inlet passageway which are respectively upstream and downstream of a radial vane passage.

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