Compressor impeller fastening for high speed turboengines
US6012901A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1998 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Sep 14, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2230/70
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The object of the invention is to provide a safe and reproducible compressor impeller fastening for high speed turboengines, which, moreover, possesses more accurate concentricity. This is achieved, according to the invention, in that both the hub cone (9) and the shaft cone (11) each have a mean diameter (23, 24) and these mean diameters (23, 24) are arranged at an axial distance (25) from the mass center of gravity (14) of the compressor impeller (4), said distance corresponding at least to half the mean diameters (23, 24). On the shaft side of the hub cone (9), the through bore (8) of the hub (6) is designed at least partially as a cylindrical bore (16).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.