Moving blade and gas turbine using the same
US7481614B2 · kind B2 · utility
6Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 2005 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Aug 10, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D11/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a gas turbine having a plurality of moving blades provided on a rotary shaft in a circumferentially adjoining condition, a seal pin is provided in a spacing between the shanks of the adjacent moving blades for preventing leakage of cooling air from a blade root portion side to an airfoil side; an arcuately depressed portion is formed on the shank of each of the moving blades; and vibration of each of the moving blades is suppressed in such a manner that the seal pin serves as a spring system while the airfoil portion, the platform, the shank, and the blade root portion serve as a mass system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.