Composite shaft with outer periphery ring
AssigneeGoodrich Corporation
InventorsBrayton Reed, Joyel M. Schaefer, Michael King, Mark R. Gurvich
Life of this patent
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Abstract
A drive shaft has a central tubular portion formed of a polymer composite with imbedded fibers. It extends between a first end and a second end. The central tubular portion has an outer peripheral surface. There is at least one ring on the outer peripheral surface of the central tubular portion. A method of repairing a composite material tube includes the steps of (a) identifying a damaged area on a composite tube, and (b) placing a patch on a surface of the tube and over the damaged area.
Claims18
A method of repairing a drive shaft, comprising the steps of:
- (a) identifying a damaged area on the drive shaft having a central tubular portion formed of a polymer composite with imbedded fibers, and extending between a first end and a second end, said central tubular portion having an outer peripheral surface, there being at least one ring on the outer peripheral surface of said central tubular portion;
- and
- (b) placing a first patch on a surface of the tube and over the damaged area,
- including a plurality of patch layers placed to cover the damaged area at an outer peripheral surface of the composite tube, the patch layers being the at least one ring;
- wherein the drive shaft is cylindrical, and the first patch extends over a limited circumferential area of the drive shaft;
- and
- wherein at least a second patch is circumferentially spaced, but axially aligned with the first patch over the damaged area, with a location for the second patch being selected to provide balancing of the drive shaft.
A method of repairing a drive shaft, comprising the steps of:
- (a) identifying a damaged area on the drive shaft having a central tubular portion formed of a polymer composite with imbedded fibers, and extending between a first end and a second end, said central tubular portion having an outer peripheral surface, there being at least one ring on the outer peripheral surface of said central tubular portion, wherein there are a plurality of rings formed of a polymer material;
- and
- (b) placing a first patch on a surface of the tube and over the damaged area,
- including a plurality of patch layers placed to cover the damaged area at an outer peripheral surface of the composite tube, the patch layers being the at least one ring;
- wherein the drive shaft is cylindrical, and the first patch extends over a limited circumferential area of the drive shaft;
- and
- wherein at least a second patch is circumferentially spaced, but axially aligned with the first patch over the damaged area, with a location for the second patch being selected to provide balancing of the drive shaft.
Dependencies are inferred from the claim text.