US 12,188,371 B1
Turbine rotor dovetail structure with splines
Philippe Savard, Montreal (CA); Francois Doyon, Ste-Julie (CA); and Guy Lefebvre, St-Bruno (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Québec (CA)
Filed by Pratt & Whitney Canada Corp., Longueuil (CA)
Filed on Aug. 21, 2023, as Appl. No. 18/452,900.
Int. Cl. F01D 5/14 (2006.01)
CPC F01D 5/143 (2013.01) [F05D 2240/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An integrated blade rotor (IBR), comprising:
a disc;
blades integrally formed with the disc; and
radially outwardly facing surfaces of the disc,
each radially outwardly facing surface being disposed adjacent to a corresponding blade and comprising a curved profile which protrudes radially outwardly from a cylindrical plane about the disc from which the corresponding blade extends radially outwardly.