US 12,460,551 B1
Additively manufactured turbine engine case
Timothy James Lanoue, West Hartford, CT (US); and Weston Matthew Behling, Coventry, CT (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Aug. 29, 2024, as Appl. No. 18/819,486.
Int. Cl. F01D 9/04 (2006.01); F01D 25/24 (2006.01); B33Y 80/00 (2015.01)
CPC F01D 9/042 (2013.01) [F01D 25/243 (2013.01); B33Y 80/00 (2014.12); F05D 2240/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An isogrid structure comprising:
a wall having a first face and a second face; and
an isogrid of hollow ribs on the wall second face and having respective rib interiors, wherein:
junctions of the ribs are at bosses having an interior surface open to the rib interiors and an external environment;
the wall comprises a first alloy; and
the ribs comprise a second alloy different from the first alloy.