Tip structure for cooled turbine rotor blade
US4424001A · kind A · utility
46Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1981 |
| Grant date | Jan 3, 1984 |
| Priority date | — |
| Expiry date | Dec 4, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/18
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention comprises a cooled turbine rotor blade having an improved blade tip structure. A recessed tip is provided at the leading edge end of the blade tip on downstream turbine blades which are too narrow to support a blade tip cavity over the entire exterior surface of the blade tip without interfering with cooling airflow from apertures in the exterior surface. The recessed tip structure protects apertures therein from blockage by a blade tip smear and does not substantially reduce the performance efficiency of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.