Method for preventing an over temperature condition in a gas...

Details Method for preventing an over temperature condition in a gas... Method for preventing an over temperature condition in a gas...

2006-12-27

2008-10-14

McCall, Eric S (Department: 2855)

Measuring and testing

Turbine engine

Reexamination Certificate

active

07434451

ABSTRACT:
Method comprising providing a signal tube extending generally from an engine component disposed on a hot side of a firewall in a gas turbine engine to at least one engine control mechanism disposed on a cool side of the firewall. A fuse in the signal tube is operable responsive to a breach in the signal tube to change from a first condition to a second condition to prevent an over-temperature situation on the cool side of the firewall. The engine control mechanism operates the engine according to a first operating logic utilizing a pressure signal related to a static pressure of a fluid in the signal tube. Loss of the pressure signal causes the engine control mechanism to change to a second operating logic which does not utilize the pressure signal.

REFERENCES:
patent: 4657386 (1987-04-01), Suarez-Gonzalez et al.
patent: 5828797 (1998-10-01), Minott et al.
patent: 2006/0241886 (2006-10-01), Ponziani

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