The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 2022
Filed:
Sep. 21, 2021
Rolls-royce Corporation, Indianapolis, IN (US);
Brett Barker, Indianapolis, IN (US);
Eric Koenig, Indianapolis, IN (US);
Bruce Varney, Indianapolis, IN (US);
Kyle Uhlenhake, Indianapolis, IN (US);
ROLLS-ROYCE CORPORATION, Indianapolis, IN (US);
Abstract
An airfoil with dual-wall cooling for a gas turbine engine comprises a spar having a pressure side wall and a suction side wall meeting at a leading edge and a trailing edge of the airfoil. An interior of the spar comprises a coolant cavity. The suction side wall includes an arrangement of rails on an outer surface thereof, where each rail extends along a non-chordal direction and terminates at or near the trailing edge. The airfoil also comprises a suction side coversheet overlying the suction side wall, where an inner surface of the suction side coversheet is in contact with the arrangement of rails so as to define a plurality of angled channels between the suction side wall and the suction side coversheet. The suction side wall also comprises inlet holes in fluid communication with the coolant cavity for feeding coolant to the angled channels, and the arrangement of rails is configured to direct the coolant through the angled channels and toward the trailing edge of the airfoil.