Engine health monitoring

Details Engine health monitoring Engine health monitoring

2006-12-05

2010-10-26

Cuff, Michael (Department: 3741)

Data processing: measuring, calibrating, or testing

Measurement system

Performance or efficiency evaluation

C060S772000, C060S776000, C060S779000, C060S039281, C701S029000, C701S030000, C701S031000, C701S032000, C701S033000, C701S034000, C701S035000, C702S183000, C702S184000, C702S185000

Reexamination Certificate

active

07822576

ABSTRACT:
A method of monitoring the health of a gas turbine engine10comprising a fuel system30having a fuel metering valve36and a fuel pump40for supplying fuel to a combustor apparatus15. The method comprising the steps of: monitoring the fuel metering valve percentage open, detecting and sending a warning message when the fuel metering valve percentage open is at 97% or greater and within a predetermined time from when the first percentage open is at 97% or greater, replacing the fuel pump40. In this way scheduling of servicing and replacement of the fuel pump may be made without disruption to the aircraft operator particularly where the operator has a fleet of aircraft.

REFERENCES:
patent: 4512722 (1985-04-01), Mouton
patent: 7246024 (2007-07-01), Muramatsu et al.
patent: 7431569 (2008-10-01), Griffiths
patent: 1 154 137 (2003-12-01), None
patent: 1 522 731 (2005-04-01), None
patent: 1 505 279 (2005-11-01), None

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