Patent ID: 9212666
Filing Date: 2015-12-15
Classification: F01D,F04D,F05D,Y02T

Abstract:
1. A metal annular casing for a turbine engine compressor, the casing comprising: at least one annular row of radial chimneys for receiving outer cylindrical pivots of variable-pitch vanes; and an outer cylindrical centering track that is continuous or interrupted and against which runners carried by an annular ring for controlling the pitch of the vanes are to come to bear, wherein the track is formed by blocks of plastics material fitted onto the casing, wherein the casing includes means for retaining the blocks axially, the retaining means comprising two annular walls that are formed integrally with the casing and that extend radially outwards, the walls being upstream and downstream relative to the blocks, and wherein an axial distance between the walls is substantially equal to an axial length of the blocks.