US 11,732,614 B2
Gas turbine engine case fixture assembly with platform adaptor
Francois Massicotte, Laval (CA); and Alexandre Marsan, Longueuil (CA)
Assigned to Pratt & Whitney Canada Corp., Longueuil (CA)
Filed by Pratt & Whitney Canada Corp., Longueuil (CA)
Filed on Dec. 27, 2021, as Appl. No. 17/562,558.
Prior Publication US 2023/0203965 A1, Jun. 29, 2023
Int. Cl. F01D 25/28 (2006.01)
CPC F01D 25/285 (2013.01) [F05D 2220/32 (2013.01); F05D 2230/60 (2013.01); F05D 2240/14 (2013.01); F05D 2240/91 (2013.01); F05D 2260/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A fixture assembly for holding a case of a gas turbine engine, comprising:
a support stand;
a support platform rotatably coupled to the support stand and rotatable about an axis, the support platform extending circumferentially about a centerline that is angularly offset from the axis, and the support platform extending longitudinally along the centerline to a platform top surface; and
a platform adaptor disposed on the platform top surface and attached to the support platform, the platform adaptor comprising a case receptacle formed by an adaptor top surface and an adaptor shoulder surface, the platform adaptor extending longitudinally along the centerline to the adaptor top surface where the adaptor top surface is configured to longitudinally engage and support the case, the platform adaptor extending radially relative to the centerline to the adaptor shoulder surface where the adaptor shoulder surface is configured to radially engage and position the case on the adaptor top surface, and the adaptor top surface and the adaptor shoulder surface each extending circumferentially about the centerline;
wherein the support platform comprises an adaptor receptacle formed by the platform top surface and a platform shoulder surface;
wherein the platform top surface is configured to longitudinally engage and support the platform adaptor;
wherein the support platform extends radially relative to the centerline to the platform shoulder surface where the platform shoulder surface is configured to radially engage and position the platform adaptor on the platform top surface; and
wherein the platform top surface and the platform shoulder surface each extend circumferentially about the centerline.