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US 12,031,452 B2Granted
Airfoil with body and cover panel
AssigneeRtx Corporation
InventorsEric W. Malmborg, Larry Foster
Life of this patent
Estimating the term…
Abstract
An airfoil includes a metal body that has holes, a cover panel carried on the metal body, and push fasteners that extend through the cover panel and into the holes to lock the cover panel on the metal body. Each of the push fasteners includes flexible barbs that engage sides of the holes to resist retraction of the fasteners from the holes. The heads of the push fastener are embedded in recesses in the cover panel.
Claims10
An airfoil comprising:
- a metal body having holes;
- a cover panel carried on the metal body;
- and
- push fasteners extending through the cover panel and into the holes to lock the cover panel on the metal body, each of the push fasteners including flexible barbs that engage sides of the holes to resist retraction of the fasteners from the holes, and the push fasteners including heads that are embedded in recesses in the cover panel wherein sides of the recesses are obliquely sloped with respect to a length direction of the fasteners.
1 more element
A gas turbine engine comprising:
- a fan;
- a compressor section;
- a combustor in fluid communication with the compressor section;
- and
- a turbine section in fluid communication with the combustor, the fan having airfoils that each include
- a metal body having holes,
- a cover panel carried on the metal body, and
- push fasteners extending through the cover panel and into the holes to lock the cover panel on the metal body, each of the push fasteners including flexible barbs that engage sides of the holes to resist retraction of the fasteners from the holes, and the push fasteners including heads that are embedded in recesses in the cover panel wherein sides of the recesses are obliquely sloped with respect to a length direction of the fasteners.
5 more elements
Dependencies are inferred from the claim text.