Methods and systems to facilitate over-speed protection

Details Methods and systems to facilitate over-speed protection Methods and systems to facilitate over-speed protection

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 21/02 (2006.01) F02C 7/22 (2006.01) F02C 9/46 (2006.01)

Patent

CA 2665799

An over-speed protection system (40) for a gas turbine engine (10) including a rotor (24) is provided. The over-speed protection system includes a fuel throttling/shutoff valve (50) coupled to a fuel supply coupled to the gas turbine engine, a first fuel system interface (56) coupled to the fuel throttling/shutoff valve, the first fuel system interface configured to provide the throttling/shutoff valve with a signal indicative of an over-speed condition, a second fuel system interface (58) serially coupled to the first fuel system interface, the second fuel system interface configured to provide the throttling/shutoff valve with a signal indicative of an over-speed condition, and a control system (100) configured to identify an occurrence of an over-speed condition and to provide the first fuel system interface and the second fuel system interface with a signal corresponding to such an occurrence.

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