Managing low pressure turbine maximum speed in a turbofan engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 10, 2017
Grant Date -
Jan 7, 2010
app pub date -
Oct 12, 2006
filing date -
Oct 12, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A turbofan engine control system for managing a low pressure turbine speed is provided. The turbofan engine control system includes a low spool having a low pressure turbine that are housed in a core nacelle. The low pressure turbine is adapted to rotate at a speed and includes a maximum design speed. A turbofan is coupled to the low spool. A fan nacelle surrounds the turbofan and core nacelle and provides a bypass flow path. The bypass flow path includes a nozzle exit area. A controller is programmed to command a flow control device adapted to effectively decrease the nozzle exit area in response to a condition. Reducing the nozzle exit area, either physically or otherwise, maintains the speed below the maximum design speed.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2006 Application Filing Year
- F02K Class
- 215 Applications Filed
- 162 Patents Issued To-Date
- 75.35 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- F02K Class
- 21.78 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 10, 2028 |
