A deformable fastener assembly for use with a gas turbine engine. The deformable fastener may be used to fasten a component of the gas turbine that is subjected to high temperatures and thermal deformation, such as an impingement sleeve assembly, to a rigid portion, such as the inner turbine shell o
A deformable fastener assembly for use with a gas turbine engine. The deformable fastener may be used to fasten a component of the gas turbine that is subjected to high temperatures and thermal deformation, such as an impingement sleeve assembly, to a rigid portion, such as the inner turbine shell of the gas turbine engine. The deformable fastener assemblies may permit components to be fastened to a rigid portion of the gas turbine with a consistent load input to permit frictional transient sliding of the component relative to the rigid portion of the gas turbine engine.
대표청구항▼
1. An impingement sleeve assembly of a gas turbine engine comprising a plurality of impingement sleeve panels fastened to an inner turbine shell of the gas turbine engine with a plurality of deformable fasteners, said inner turbine shell having one or more detents, each detent receives a correspondi
1. An impingement sleeve assembly of a gas turbine engine comprising a plurality of impingement sleeve panels fastened to an inner turbine shell of the gas turbine engine with a plurality of deformable fasteners, said inner turbine shell having one or more detents, each detent receives a corresponding mounting flange of the plurality of impingement sleeve panels, and each corresponding mounting flange receives one of the plurality of deformable fasteners, wherein each of said plurality of deformable fasteners include: a bolt; a deformable member positioned between a head of said bolt and the corresponding mounting flange receiving the deformable fastener, and a bushing received in said corresponding mounting flange, said bushing having an outside diameter,where said corresponding mounting flange has an inside diameter, the outside diameter of said bushing being smaller than the inside diameter of said corresponding mounting flange, such that said plurality of impingement sleeve panels can displace laterally relative to an axis of at least one of said plurality of deformable fasteners,where an outside diameter of said corresponding mounting flange is smaller than a diameter of the detent in which said corresponding mounting flange is received, such that said plurality of impingement sleeve panels can displace laterally relative to an axis of at least one of said plurality of deformable fasteners, andwherein each of said plurality of deformable fasteners further include: a pin, said bushing having a hole therein for receiving said pin, said pin being received by a groove in a shaft of said bolt, thereby permitting said bolt, said bushing, said pin, and said deformable member of each of said plurality of deformable fasteners to be installed in and removed from said plurality of impingement sleeve panels and said inner turbine shell in one piece. 2. The impingement sleeve assembly of claim 1, each said groove circumscribing each said bolt shaft. 3. The impingement sleeve assembly of claim 2, said bushing comprising a lip, wherein when said bolt, said bushing, said pin, and said deformable member of each of said plurality of deformable fasteners are installed in and removed from said plurality of impingement sleeve panels and said inner turbine shell in one piece, said lip is configured to engage a washer positioned between said lip and said deformable member. 4. The impingement sleeve assembly of claim 3, said deformable member being selected from the group comprising one or more Belleville washers, spring washers, washer faced springs, mechanical springs, and combinations thereof.
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