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US 2009/0214335 A1Published application
Method of repair for cantilevered stators
OwnerMerrell W. Longinventor
Life of this patent
Estimating the term…
Abstract
A method for repairing a cantilevered stator vane includes removing a damaged portion leaving a remaining vane portion. A supplemental airfoil portion is then selected and is attached to the remaining vane portion to provide a repaired cantilevered stator vane.
Claims16
A method for repairing a cantilevered stator vane comprising:
- (a) providing a cantilevered stator vane including an airfoil supported by a platform that is to be supported by a non-rotating engine structure;
- (b) removing a damaged portion of the airfoil leaving a remaining vane portion;
- (c) selecting a supplemental airfoil portion;
- and
- (d) attaching the supplemental airfoil portion to the remaining vane portion.
2 more elements
A cantilevered stator vane comprising:
- a first vane structure to be supported by a non-rotating engine structure, said first vane structure comprising a non-damaged portion that remains after removal of a damaged portion;
- and
- a second vane structure secured to said first vane structure at an attachment interface, said second vane structure comprising a supplemental portion that is selected for attachment to said non-damaged portion, said first and said second vane structures cooperating to comprise a repaired cantilevered stator vane.
A gas turbine engine comprising:
- at least one of a fan and a low pressure compressor;
- a combustion section;
- a turbine section;
- a main shaft;
- and
- a high pressure compressor with a plurality of disks and blades that are mounted to rotate with said main shaft about an axis, said compressor including at least one cantilevered stator vane that is mounted to a non-rotating engine structure, said at least one cantilevered stator vane including
- a platform supported by the non-rotating engine structure,
- a first airfoil portion extending inwardly from said platform, said first airfoil portion comprising a non-damaged portion that remains after removal of a damaged airfoil portion, and
- a second airfoil portion secured to said first airfoil portion at an attachment interface, said second airfoil portion comprising a supplemental airfoil portion that is selected for attachment to said non-damaged portion, said first and said second airfoil portions cooperating to comprise a repaired cantilevered stator vane.
6 more elements
Dependencies are inferred from the claim text.