公开(公告)号：US20040109755A1

公开(公告)日：2004-06-10

申请号：US10725029

申请日：2003-12-02

Applicant: ABB Turbo Systems AG

Inventor： Marcel Meier ,  Tobias Gwehenberger ,  Marcel Zehnder ,  Anton Meier

IPC: F03D011/00

CPC classification number: F01D25/28 ,  F01D25/08 ,  F01D25/246 ,  F05D2220/40 ,  F05D2230/64 ,  F05D2230/642

Abstract: The exhaust-gas turbine comprises a turbine casing (1), a shaft (3) rotatably mounted in a bearing housing (4), a turbine wheel (5) arranged on the shaft, and a heat-protection wall (2), the heat-protection wall defining with the turbine casing an inflow passage (6) leading to the turbine wheel. The heat-protection wall has two seatings, the first seating resting on the bearing housing (4) and the second seating resting on the turbine casing (1). If the heat-protection wall (2) becomes hot, the two seatings are pressed against the bearing housing and the turbine casing. The turbine casing is pressed outward in the radial direction. Centering of the heat-protection wall (2) and thus also of the turbine casing (1) is ensured by the radially inner seating of the heat-protection wall.

Abstract translation: 排气涡轮机包括涡轮机壳体（1），可旋转地安装在轴承壳体（4）中的轴（3），布置在轴上的涡轮机叶轮（5）和热保护壁（2） 保护壁与涡轮机壳体一起形成通向涡轮机叶轮的流入通道（6）。 保护壁具有两个座，第一座位位于轴承座（4）上，第二座椅位于涡轮机壳体（1）上。 如果热保护壁（2）变热，则两个座部被压靠在轴承壳体和涡轮机壳体上。 涡轮机壳体沿径向向外压出。 热保护壁（2）的中心位置以及涡轮机壳体（1）的定心也通过防热壁的径向内部支座来确保。