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US 9,039,351 B2Granted
Annular flange for fastening a rotor or stator element
AssigneeSnecma
InventorsOlivier Belmonte, Gregory Nicolas Gerald Gillant
Life of this patent
Estimating the term…
Abstract
A radial annular flange of a rotor or stator element of a turbomachine including, at an inner/outer periphery, alternating solid portions and hollow portions, the solid portions including orifices for passing fastener bolts. The flange in the bottom of at least one hollow portion has a radius relative to the axis of the turbomachine that is less/greater than the radius of a circle that is tangential to the outsides/insides of the orifices for passing bolts through the solid portions.
Claims8
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.
Dependencies are inferred from the claim text.