Patent ID: 7540714
Filing Date: 2009-06-02
Classification: F01D

Abstract:
1. A device for rotationally blocking a ring for retaining blades on a rotor disk of a turbomachine in a substantially axial direction of said turbomachine, said rotor disk being provided with hooks spread around its circumference and defining a groove for accommodating said retaining ring, including in succession a first blocking hook, a second blocking hook and a third blocking hook, said second blocking hook being situated between said first and third blocking hooks, and said retaining ring being provided with a split and with two cleats arranged on a ring face on either side of said split, wherein the position of said cleats on said retaining ring is such that, when said retaining ring is in place in said groove, said two cleats are in respective abutment against said first blocking hook and against said third blocking hook, and said split is covered by said second blocking hook.