Patent ID: 7703270
Filing Date: 2010-04-27
Classification: F02K,F05D,Y10T

Abstract:
1. A gas turbine engine safety fuel shut-off mechanism for interrupting fuel flow to an engine in the event of a turbine shaft rupture, the mechanism comprising a fuel control unit controlling fuel flow to a combustor section of the engine, a trigger, a lever actuated by said trigger upon detection of the turbine shaft rupture, a slot defined in the lever, the slot having an open end, a cable assembly coupled at a first end thereof to the lever and at a second end thereof to the fuel control unit, the cable assembly having a cable extending longitudinally through the slot, first and second cable retainers mounted on the cable on opposite top and bottom sides of the lever for preventing longitudinal withdrawal of the cable from the lever, the first cable retainer being received in a seat defined in the top side of the lever, the second cable retainer being positioned adjacent to the bottom side of the lever, the second cable retainer abutting the bottom side of the lever to prevent the first cable retainer from being moved out of the seat when the cable is moved upwardly, and a locking member extending transversely through the slot and blocking passage of the cable through the open end of the slot, wherein said open end is selectively obstructed by said locking member, the locking member including a pin removably inserted in holes defined in said lever transversally of the slot, and wherein the actuation of the lever by the trigger is transmitted to the fuel control unit in order to shut down fuel flow.