Patent ID: 8246478
Filing Date: 2012-08-21
Classification: B29C,B29L,F01D,F05D,F16C

Abstract:
1. An engine shaft, comprising: a fiber-composite tube; at least one of a metallic driving and driven protrusions; an adapter integrally connected to the at least one of the driven and the driving protrusions, the adapter having a plurality of protruding pylons arranged on a circumferential area of the adapter, on which fibers of the fiber-composite tube can be deflected, guided and retained for connecting the fiber-composite tube to the adapter and transmitting load between the protrusion and the fiber-composite tube; wherein the pylons each have a deflecting curvature oriented longitudinally outwardly for gently deflecting the fibers and two side faces arranged at a specific angle whose orientation is adapted to a respective fiber orientation in the fiber-composite tube; wherein the pylons are approximately drop-shaped with the two side faces extending from opposite sides of the deflecting curvature toward one another such that the two side faces are oriented at an acute angle to each other with a vertex of the angle oriented longitudinally inwardly, with the angle included by the two side faces corresponding to the respective fiber orientation in the fiber-composite tube; wherein each fiber wraps fully wraps around the deflecting curvature and each of the two side faces to cross over itself adjacent the vertex such that opposite ends of the fiber extend away from one another from the cross over point along the respective fiber orientation.