SHAFT FOR A GAS TURBINE ENGINE
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United States of America
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Issued Date -
Mar 20, 2025
app pub date -
Aug 26, 2024
filing date -
Aug 26, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
A shaft for a gas turbine engine includes a composite tube including a plurality of grooves extending along a longitudinal axis of the shaft. The shaft has a load fuse mechanism that has at least one metallic coupling that has a plurality of splines extending along the longitudinal axis of the shaft. Each of the plurality of splines is received within and engages with a corresponding groove of the composite tube to form a preloaded interference fit between the load fuse mechanism and the composite tube. The at least one metallic coupling includes a first portion defining a first diameter and a second portion extending from the first portion along the longitudinal axis. The second portion defines a second diameter that is greater than the first diameter. The second portion has a smooth annular outer surface devoid of any splines.
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