Treatment process for a centrifugal compressor wheel to extend low-cycle fatigue life
US11648632B1 · kind B1 · utility
1Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2021 |
| Grant date | May 16, 2023 |
| Priority date | — |
| Expiry date | Nov 22, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/94
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A process for treating a centrifugal compressor wheel includes a combination of cold expansion of at least part of the bore of the wheel to induce residual compressive stresses in a region around the bore, and surface peening at least parts of the compressor wheel such as the back disk and portions of the blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.