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:
Aug. 04, 2026
Filed:
Nov. 20, 2024
Rtx Corporation, Farmington, CT (US);
Griffin D. Lavine, South Glastonbury, CT (US);
David R. Pack, Gold Canyon, AZ (US);
Brandon W. Spangler, Vernon, CT (US);
Jennifer H. Archambeau, Ludlow, MA (US);
RTX Corporation, Farmington, CT (US);
Abstract
A rotor blade for a gas turbine engine is provided that includes an airfoil, an attachment section, and a neck section. The airfoil includes a plurality of internal cooling air passages. The attachment section has a base surface. A forward center cooling air passage is open at the base surface and extends through the attachment and neck sections. An aft center cooling air passage is open at the base surface and extends through the attachment and neck sections. A W2W cooling air passage is open at the base surface and extends through the attachment and neck sections. The W2W cooling air passage is disposed between the forward and aft center cooling air passages. In a transition in a direction from a cross-sectional plane disposed in the attachment section to the airfoil root end, a side segment progressively extends outwardly from the WW cooling air passage.