Turbomachine blade with variable chord length
US8221065B2 · kind B2 · utility
8Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2008 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Dec 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/05
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blade of a turbomachine, especially of a steam turbine, is characterized in that the chord length (sm) in the middle region of the blade airfoil is shorter than the chord lengths (s0, S1) in the tip-side region or root-side region of the blade airfoil. As a result of this, a distribution of a Zweifel parameter over the longitudinal extent of the blade airfoil is achieved which minimizes the losses of a blade cascade of the blades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.