Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2008-05-20
2008-05-20
Beaulieu, Yonel (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
Reexamination Certificate
active
11001247
ABSTRACT:
A method from discriminating between spurious and genuine surges in a gas turbine engine is provided which includes the steps of receiving an engine speed signal over a global engine surge investigation region that includes a plurality of operating regions (e.g. speed bands) in which engine surges can occur, identifying a specific operating region in which an engine surge event occurs, incrementing a surge counter corresponding to the operating region in which the engine surge event occurred, identifying the operating regions in which no engine surge event occurred, decrementing a surge counter corresponding to each operating region in which no engine surge event occurred; enabling a surge avoidance signal when the magnitude of the surge counter for a particular operating region has reached a predetermined value; and adapting an engine acceleration schedule in the operating region corresponds to the surge avoidance signal.
REFERENCES:
patent: 3867717 (1975-02-01), Moehring et al.
patent: 4490791 (1984-12-01), Morrison
patent: 4594051 (1986-06-01), Gaston
patent: 4603546 (1986-08-01), Collins
patent: 4622808 (1986-11-01), Sheppard
patent: 4724813 (1988-02-01), Cinpinski
patent: 5195875 (1993-03-01), Gaston
patent: 5726891 (1998-03-01), Sisson et al.
patent: 5913248 (1999-06-01), Harada et al.
patent: 6141951 (2000-11-01), Krukoski et al.
patent: 6408624 (2002-06-01), Books et al.
patent: 6438484 (2002-08-01), Andrew et al.
patent: 6513333 (2003-02-01), Sugitani
patent: 6823254 (2004-11-01), Faymon et al.
patent: 7089738 (2006-08-01), Boewe et al.
patent: 7237382 (2007-07-01), Muramatsu et al.
patent: 0 980 980 (2000-02-01), None
European Search Report dated Oct. 21, 2003.
Beaulieu Yonel
Edwards Angell Palmer & & Dodge LLP
Goodrich Pump & Engine Control Systems, Inc.
Silvia David J.
Wofsy Scott D.
LandOfFree
Method of engine surge discrimination does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of engine surge discrimination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of engine surge discrimination will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3917362