Expandable blade root sealant
US5139389A · kind A · utility
31Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Oct 1, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2203/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A seal is provided for preventing passage of working medium gases between the roots of the rotor blades of a gas turbine engine and the rotor thereof. The seal comprises a compressed laminar exfoliated graphite piece placed in the cavity between the root of the rotor blade and the receiving slot in the rotor disk, which piece expands upon heating to seal said cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.