Impeller with protection elements and centrifugal compressor
US11162505B2 · kind B2 · utility
0Cited by
61References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2014 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Jun 12, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The impeller includes a main body with a root, a shroud and a plurality of blades connecting the root and the shroud. Protection elements are associated to the blades and constitute at least the front part of the blades. The protection elements may consist of separate bodies or may be grouped together to form one or more protection bodies. In an embodiment, 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%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.