Turbine blade with multi-pass cooling and cooling air addition
US6139269A · kind A · utility
51Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1997 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Dec 17, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/187
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A convectively cooled turbine blade has two distinct cooling air passage systems. The first system cools the blade leading edge and emits cooling air through outlet passageways in the leading edge arranged in showerhead array. The second system includes a five-pass series flow passage comprising five cooling passage sections that extend in series through the remainder of the blade. Cooling air resupply passages inject additional cooling air into the third and fifth cooling passage sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.