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发明公开
CN106062376A 具有保护元件的叶轮和离心压缩机 无效 - 驳回

具有保护元件的叶轮和离心压缩机
摘要：
叶轮包括主要本体，该主要本体具有根部(1)、围带(2)、和连接根部和围带的多个叶片(3)；保护元件(10)与叶片(3)相关且至少构成叶片(3)的前部；保护元件(10)可由分开的本体构成，且可一起分组以形成一个或更多个保护本体；有利地，保护元件的材料与主要本体的材料不同，且例如可为具有大于20%的铬含量的钴基合金或具有大于12%的铬含量的镍基合金。
摘要（英）：

The impeller comprises a main body with a root (1), a shroud (2) and a plurality of blades (3) connecting the root and the shroud; protection elements (10) are associated to the blades (3) and constitute at least the front part of the blades (3); the protection elements (10) may consist of separate bodies or may be grouped together to form one or more protection bodies; advantageously, the material of the protection elements is different from the material of the main body, and may be, for example, a cobalt base alloy having a chromium content greater than 20% or nickel base alloy having a chromium content greater than 12%.

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