公开(公告)号：US20230250725A1

公开(公告)日：2023-08-10

申请号：US17856042

申请日：2022-07-01

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Dominic J. Mongillo ,  Emma J. Place ,  Christopher J. Peters ,  Jeffrey J. DeGray ,  Timothy J. Jennings ,  Raymond Surace ,  Jeremy B. Fredette

IPC: F01D5/18

CPC classification number: F01D5/18 ,  F05D2220/32 ,  F05D2230/60 ,  F05D2260/20

Abstract: An airfoil for a gas turbine engine according to an example of the present disclosure includes an airfoil section extending in a radial direction from a root section to a tip portion. The airfoil section has an external wall and an internal wall. The airfoil section establishes an internal cooling arrangement including a first cooling passage having a first section and a tip flag section. The tip flag section extends in the chordwise direction along the tip portion from the first section. The first section includes a plurality of branched paths established by at least one turning vane.

公开(公告)号：US20230212950A1

公开(公告)日：2023-07-06

申请号：US17568358

申请日：2022-01-04

Applicant: RAYTHEON TECHNOLOGIES CORPORATION

Inventor： Emma J. Place ,  Jeffrey Michael Jacques ,  Anthony C. Evans ,  Joshua W. Richards

IPC: F01D5/16 ,  F01D5/18 ,  F01D11/00

CPC classification number: F01D5/16 ,  F01D5/187 ,  F01D11/006 ,  F05D2240/55 ,  F05D2240/80 ,  F05D2250/711 ,  F05D2250/712 ,  F05D2260/20 ,  F05D2260/96

Abstract: A damper seal for a gas turbine engine includes a damper body extending in a first direction between a leading edge portion and a trailing edge portion, extending in a second direction between first and second sidewalls, and extending in a third direction between a convex outer damper face and a concave inner damper face. The inner damper face establishes a damper pocket. The leading and trailing edge portions slope inwardly from opposite ends of the damper body to bound the damper pocket in the first direction. The first and second sidewalls extend from the leading edge portion to the trailing edge portion and slope inwardly from opposite sides of the damper body to bound the damper pocket in the second direction. The outer damper face is pre-formed according to a first predetermined geometry that substantially corresponds to a second predetermined geometry of a platform undersurface bounding a neck pocket of an airfoil. A method of damping for a gas turbine engine is also disclosed.