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US 4,361,416 AGranted
Rotor for axial-flow turbomachines
AssigneeMotoren- und Turbinen-Union Munchen GmbH
InventorAxel Rossmann
Life of this patent
Estimating the term…
Abstract
A rotor for axial-flow turbomachines with a locking pin connection for the blade roots. The blade roots are suspended in fiber-reinforced retaining rings and evidence cylindrical circumferential surfaces at their lower side. These cylindrical surfaces contact a correspondingly conformed circumferential surface on the metallic rotor disc.
Claims6
In a rotor for axial-flow turbomachines having radially slotted blade roots;
- a radially extending web of a rotor component;
- segments arranged in axial sequence in the split blade root;
- an axial bolt interconnecting said blade root with said web and said segments primarily for assuming circumferential forces;
- a common coaxial retaining ring circumferentially encompassing said segments for the assuming of radial forces, said retaining ring having a corresponding curvature and being constituted of a material selected from the group consisting of boron, glass or carbon fibers embedded in a heat-resistant matrix, the improvement comprising:
- a rotor component having a coaxially extending cylindrical circumferential surface, at least a portion of the common cylindrical inner surfaces of the split blade root and of the common cylindrical inner surfaces of the segments bearing against said circumferential surface.
2 more elements
Dependencies are inferred from the claim text.