Shaft of a gas-turbine engine, in particular a radial shaft or a shaft arranged at an angle to the machine axis

摘要

A radial shaft of a gas-turbine engine which is made up of +/−45° layers, zero layers and +/−30° layers of carbon fiber composite and connected to load-input end pieces via sinusoidal connecting areas.

主权项

1. A shaft of a turbine engine comprising:
a center part, and load-input end pieces, wherein the center part includes a conical tube made of a carbon fiber composite material, wherein the load-input end pieces are made of a metallic material and connected to the center part via a positive sinusoidal structure including axially extending concave areas positioned on the load-input end pieces; the center part including end areas formed to at least partially fill the concave areas of the load-input end pieces, resulting in axially extending corresponding concave areas on outer peripheries of the end areas; a plurality of filler rods of carbon material positioned one each in the corresponding concave areas on the outer peripheries of the end areas, each of the plurality of filler rods having an elongated body having a radially inner side shaped to match a shape of the corresponding concave areas and a radially outer side shaped such that the plurality of filler rods together form a generally cylindrical outer shape when the plurality of filler rods are axially positioned in the respective axially extending corresponding concave areas; a further layer of carbon fiber composite material applied over the end areas with filler rods.