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US 9,435,205 B2Granted
Apparatus for broaching repair of turbine rotor steeples
AssigneeGeneral Electric Technology GmbH
InventorMatthew S. Kight
Life of this patent
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Abstract
A broaching apparatus includes; a broach having a cross-section corresponding to a geometry of slot between adjacent steeples of a turbine rotor, and a mechanism which moves the broach through the slot in a direction substantially parallel to a direction of extension of the slot.
Claims2
A method for repairing a crack in a turbine rotor, the method comprising:
- securing a fixture assembly to the turbine rotor;
- coupling an actuator frame to the fixture assembly;
- coupling an actuator to the actuator frame;
- coupling a first pulley to an end of the actuator opposite the actuator frame;
- disposing a chain anchor on one of the fixture assembly and the actuator frame;
- coupling a first end of a chain to the chain anchor, a middle section of the chain passing through the first pulley;
- and
- coupling a second end of the chain to a broach, the broach having a cross-section corresponding to a geometry of a slot between two adjacent steeples in a direction of extension of the slot;
- and
- removing material surrounding the crack by moving the broach through the slot in a direction substantially parallel to a direction of extension of the slot wherein a motion of the actuator is transferred to the broach via the chain.
7 more elements
Dependencies are inferred from the claim text.