Flutter resistant blades, vanes and arrays thereof for a turbomachine
US5667361A · kind A · utility
25Cited by
18References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1995 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Sep 14, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An array (32) of flow directing elements such as fan blades (20) for a turbine engine (10) is disclosed. Each blade in the array has a set of circumferentially shrouds (42, 44) whose contact edges (46, 48) abut each other during engine operation. A shroud angle .sigma. establishes the running chord angle .alpha. of the airfoil (30) portion of the array. Slight differences in the shroud angles of adjacent blades cause corresponding differences in the running chord angles so that the array is detuned and airfoil flutter is precluded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.