SHAFT OF A GAS TURBINE ENGINE IN HYBRID DESIGN
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United States of America Patent
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Aug 11, 2016
app pub date -
Feb 8, 2016
filing date -
Feb 9, 2015
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Abstract
A shaft of a turbine engine made from fiber-composite material, having a sinusoidal inner profile which extends over the entire length of the shaft on its inner wall, where a first inner layer forms the sinusoidal inner profile and has fibers arranged at ±45° relative to the axial direction, where the concave outer areas of the first layer are filled with fibers parallel to the center axis by a second layer to form a cylindrical outer contour. The second layer extends in the circumferential direction only in the concave area. A third layer with fibers arranged at ±30° relative to the axial direction is provided on the second layer A fourth layer with fibers arranged at ±88° relative to the axial direction is provided on the third layer. An intermediate layer is formed between the second and third layers from fibers parallel to the axial direction.
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