Anti-Torsion Assembly
AssigneeUnited Technologies Corporation
InventorAndrew G. Alarcon
Life of this patent
Estimating the term…
Abstract
An anti-torsion assembly for positioning and securing a thermally conforming liner within a fan containment case is provided. The anti-torsion assembly minimizes the amount of machining that must be done prior to assembly. The anti-torsion assembly comprises a torque block with outwardly-opposing side surfaces and a pair of L-brackets. Each L-bracket has a bracket surface that faces one of the outwardly-opposing side surfaces of the torque block. A wear pad is affixed to each bracket surface. The L-brackets are positioned onto the thermally conforming liner using a spacer having a spacer width within a predetermined tolerance. A method of assembling a fan case assembly is also provided.
Claims20
An anti-torsion assembly comprising:
- a torque block having outwardly-opposing side surfaces;
- a pair of L-brackets, each L-bracket having an inner-facing bracket surface;
- and
- a wear pad affixed to each inner-facing bracket surface and adapted to abut one of the outwardly-opposing side surfaces of the torque block.
A method of assembling a fan case assembly, the method comprising the steps of:
- (a) mounting multiple torque blocks onto an inner diameter surface of a fan containment case, each torque block having outwardly-opposing side surfaces and a circumferential width;
- (b) positioning multiple pairs of L-brackets onto an outer diameter surface of a thermally conforming liner, each L-bracket carrying a wear pad on an inner-facing bracket surface of the L-bracket, each pair of L-brackets being positioned so that the wear pads abut a spacer, the spacers having a spacer width;
- (c) securing the L-brackets to the thermally conforming liner;
- (d) removing the spacers to create a channel between each pair of L-brackets;
- and
- (e) inserting the thermally conforming liner into the fan containment case so that the torque blocks extend into the channels.
An anti-torsion assembly comprising:
- a torque block affixed to a fan containment case, the torque block having outwardly-opposing side surfaces, the outwardly-opposing side surfaces defining a circumferential width;
- a pair of L-brackets affixed to a thermally conforming liner disposed within the fan containment case, each L-bracket comprising a foot member and a leg member extending from the foot member, the leg member having a bracket surface facing one of the outwardly-opposing side surfaces;
- and
- a wear pad affixed to each bracket surface, each wear pad having an inner-facing surface adjacent one of the outwardly-opposing side surfaces and separated therefrom by a gap distance;
- wherein the maximum gap distance equals a predetermined distance minus the circumferential width.
Dependencies are inferred from the claim text.