Method for setting a gear ratio of a fan drive gear system of a gas turbine engine
US8678743B1 · kind B1 · utility
34Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2013 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Feb 4, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4932
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan section including a fan rotatable about an axis and a speed reduction device in communication with the fan. The speed reduction device includes a planetary fan drive gear system with a planet gear ratio of at least 2.5. A fan blade tip speed of the fan is less than 1400 fps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.