Three-spool by-pass turbojet with a high by-pass ratio
US7299621B2 · kind B2 · utility
45Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2005 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | May 27, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to aerodynamically matching the rear fan of a turbojet having two fans and a low-pressure compressor at the front of the intermediate casing, said fans being driven by two independent shafts. Said compressor is disposed between the blades of the two fans and includes at least one ring of rotor blades around the periphery of a wheel driven by the drive shaft for the front fan, and at least two grids of stator vanes disposed on either side of the ring of rotor blades and inside a grid carrier ring. A stationary outer grid and a stator of variable pitch connect the ring to the fan casing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.