US 12,110,807 B1
Altering structural response of two-piece hollow-vane assembly by changing the cover composition
David E. Bitter, Chester, CT (US); S Bret Bonarrigo, Wallingford, CT (US); William John Oldach, West Hartford, CT (US); William C. Sheridan, East Haddam, CT (US); and Matthew Michael Massaro, Wilmington, DE (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by Raytheon Technologies Corporation, Farmington, CT (US)
Filed on Mar. 14, 2023, as Appl. No. 18/121,146.
Int. Cl. F01D 5/18 (2006.01)
CPC F01D 5/18 (2013.01) [F05D 2230/237 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A process of tailoring vibratory characteristics of a cover for an open body hollow vane assembly comprising:
forming the open body, the open body including an interior;
forming at least one cover support structure in said open body proximate the interior;
forming a cover, the cover being configured to attach to the open body to form at least one flow passage;
forming at least one ply in the cover;
disposing a dampener material between an outer layer and an inner layer of the cover to form the at least one ply in the cover; and
brazing the cover to the open body.