Patent ID: 9422818
Filing Date: 2016-08-23
CPC Classification: F01D,F05D,Y02T

Claim Text:
1. A rotor wheel for a gas turbine engine, the wheel comprising: a metal holder disk including a plurality of teeth at an outer radial periphery of the holder disk, the teeth of the holder disk being planar having first and second side faces which are parallel to each other and extending radially outwards from the holder disk; a plurality of composite material blades, each blade including a root that is planar having first and second side faces which are parallel to each other and engaged between two adjacent teeth of the holder disk and that is held against the teeth by a pivot connection such that each respective blade root pivots around an axis passing through the teeth holding the respective blade root; and a clamp disk including a plurality of teeth at a periphery of the clamp disk, the teeth of the clamp disk being planar and extending in an axial direction, the clamp disk being fastened against the holder disk and on a same axis, with each of the teeth of the clamp disk taking up a circumferential position between one of the blade roots and one of the teeth of the holder disk, wherein the first side face of each blade root bears flatly against the first side face of one of the teeth of the holder disk, and the second side face of each blade root, opposite from the first side face of the respective blade root, bears flatly against a side face of one of the teeth of the clamp disk.