Turbine section of high bypass turbofan
US8850793B2 · kind B2 · utility
11Cited by
44References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2013 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Dec 11, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbofan engine is disclosed and includes a fan and a compressor in communication with the fan section, a combustor, a turbine and a speed reduction mechanism coupled to the fan and rotatable by the turbine. The turbine includes a first turbine section that includes three or more stages and a second turbine section that includes at least two stages. A ratio of airfoils in the first turbine section to a bypass area is less than about 170.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.