Patent ID: 9562441
Date: 2017-02-07
CPC Classifications: F01D,F05D

Claim:
1. A turbo machine including a device preventing rotation of a segment of a distributor in a form of a ring sector housed inside a ring-shaped casing of the turbo machine, the ring sector including fixed blades integral with a section of the ring sector, with interposing of a heat shield sheet between an inside wall of the casing and an outside wall of the distributor segment, comprising: a rotation-proofing peg mounted both in a notch provided on the distributor segment at a radially inner end of the peg and a housing arranged on the casing at a radially outer end of the peg, the heat shield sheet including, at a downstream end, a tab bearing against the rotation-proofing peg; and a surface portion arranged radially between the tab and the inside wall of the casing, the surface portion forming an abutment in event of possible radial displacement of the heat shield sheet during operation of the turbo machine, wherein an upper surface of the surface portion bears against the inside wall of the casing, and an upstream facing end of the surface portion is free of contact with the casing.