Preloading brace for gas turbine engine transportation
AssigneePratt & Whitney Canada Corp.
InventorsTibor Urac, Yves Isabel, Gilles Beauvais, Sylvain Giroux
Life of this patent
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Abstract
An assembly for preventing damage to bearings of a gas turbine engine during transportation is provided. The assembly comprises a turbofan gas turbine engine having an engine casing and at least one turbine shaft supported by a plurality of bearings, and, a brace secured relative to the engine casing and biasing the shaft along an axial direction of the shaft.
Claims20
An assembly comprising:
- a turbofan gas turbine engine, the engine having an engine casing and at least one turbine shaft supported by a plurality of bearings, the bearings having a static portion mounted to the casing;
- and
- a brace secured relative to the engine casing and disposed in contact with a rotating member of the engine mounted to the shaft, the brace biasing the shaft along an axial direction of the shaft.
An assembly comprising:
- a turbofan gas turbine engine having a fan mounted to a fan shaft, the fan shaft being supported on bearings and the bearings being secured to an engine casing;
- and
- means for axially biasing the fan shaft relative to the engine casing.
A method for transporting a turbofan gas turbine engine, wherein the engine comprises a turbine shaft having a rotating member mounted thereto, the shaft being supported by a plurality of bearings, the engine having a casing to which a static portion of the bearings are mounted, the method comprising the steps of:
- a) exerting a force on the shaft in relation to the static portion of the bearings, the force being exerted along a central axis of the shaft;
- b) transporting the engine;
- and
- c) removing the force on the shaft prior to the operation of the engine.
Dependencies are inferred from the claim text.