초록 ▼

If the fan of a ducted fan gas turbine engine is damaged, the power output of the engine may not be sufficient for a given throttle setting. The present invention provides a control system which detects fan damage and ensures that there is sufficient fuel flow to the engine to ensure that the overal

If the fan of a ducted fan gas turbine engine is damaged, the power output of the engine may not be sufficient for a given throttle setting. The present invention provides a control system which detects fan damage and ensures that there is sufficient fuel flow to the engine to ensure that the overall engine power output is consistent with that commanded by the throttle setting.

대표청구항 ▼

[ We claim:] [1.] A control system for a gas turbine engine including a ducted fan, combustion equipment and a turbine driving that fan, comprising means to monitor a parameter representative of the power output of said fan, means to monitor a parameter representative of the power output of said tur

[ We claim:] [1.] A control system for a gas turbine engine including a ducted fan, combustion equipment and a turbine driving that fan, comprising means to monitor a parameter representative of the power output of said fan, means to monitor a parameter representative of the power output of said turbine, means to compare said monitored parameters and provide an output signal in the event of any deviation of the relationship between said monitored parameters from a pre-determined relationship which relationship is consistent with the normal operation of said fan in an undamaged state, and means responsive to said output signal to change at least one performance-determining characteristic of said engine to cause said engine to maintain an overall power output which is greater than a pre-determined value.