Split blade frictional damper
US6752594B2 · kind B2 · utility
13Cited by
27References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2002 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | May 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved frictional damper for a rotor blade is positioned inside a cavity in the airfoil section of the blade. The cavity includes an elongated, generally radially-extending opening that divides the airfoil into two sections and an elongated opening transverse to and intersecting the radial opening. A damper placed within the cavity frictionally engages the resulting sections of the airfoil, thereby reducing the vibratory stresses on the blade as a whole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.