公开(公告)号：US06854272B2

公开(公告)日：2005-02-15

申请号：US10283682

申请日：2002-10-30

Applicant: Helmut Finger ,  Lothar Lenke ,  Erwin Schmidt ,  Siegfried Sumser

Inventor： Helmut Finger ,  Lothar Lenke ,  Erwin Schmidt ,  Siegfried Sumser

IPC: F01D17/16 ,  F02C6/12 ,  F02D23/00 ,  F01B25/02

CPC classification number: F01D17/165 ,  F02C6/12

Abstract: An exhaust gas turbocharger for an internal combustion engine, which has an exhaust gas turbine in the exhaust system and a compressor in the induction system, comprises a variable turbine geometry, associated with the turbine, for adjustably setting a radial inlet cross section for the flow to the turbine rotor. The variable turbine geometry is configured as a guide cascade ring, which has guide vanes distributed over the periphery and encompasses the turbine rotor. The minimum distance between two adjacent guide vanes obeys a specified relationship with respect to the diameter of the turbine rotor and the number of guide vanes of the guide cascade ring. In addition, a flow edge is provided on the radially inner surface of each guide vane.

Abstract translation: 一种用于内燃机的排气涡轮增压器，其在排气系统中具有排气涡轮机和在该感应系统中的压缩机，包括与该涡轮相关联的可变涡轮几何形状，用于可调节地设定该流量的径向入口横截面 到涡轮转子。 可变涡轮机几何形状被构造为引导级联环，引导级联环具有分布在周边上并包围涡轮转子的导向叶片。 两个相邻的导向叶片之间的最小距离相对于涡轮机转子的直径和引导级联环的导向叶片的数量达到规定的关系。 此外，在每个导叶的径向内表面上设置流动边缘。