Patent ID: 9039351
Filing Date: 2015-05-26
Classification: F01D,Y02T

Abstract:
1. A first radial annular flange for an assembly of rotor elements or stator elements comprising: on an inner or outer periphery of the first flange having alternating solid portions and hollow portions, the solid portions including orifices for passing fastener bolts for fastening the first flange with a second flange; and angular mistake-proofing means constituted by the bottom of only one single hollow portion of the inner or outer periphery having a radius relative to an axis of the turbomachine that is less than or greater than a radius of a circle tangential to the outsides or insides of the orifices for passing bolts through the solid portions, so as to oppose passing a fastener bolt through the solid portion and thus ensure that the first flange is fastened to the second flange in a correct angular position.