Rotor
The rotor 1 comprises a hub 2 configured for connection to a rotor shaft, and at least one rotor blade 3 coupled to the hub at a rotor blade root 4 and extending to a rotor blade tip 5. Each rotor blade comprises metallic skeletal support structure 6 that is monolithic with the hub and extends from...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The rotor 1 comprises a hub 2 configured for connection to a rotor shaft, and at least one rotor blade 3 coupled to the hub at a rotor blade root 4 and extending to a rotor blade tip 5. Each rotor blade comprises metallic skeletal support structure 6 that is monolithic with the hub and extends from the rotor blade root towards the rotor blade tip. Each rotor blade further comprises an external shell 7 extending from the rotor blade root to the rotor blade tip. The skeletal support structure and the external shell are substantially discrete, and each define at least 10% of the volume fraction of the rotor blade. The material of the shell has a lower density than the metallic material of the skeletal support structure. The present invention further discloses a vacuum pump or compressor comprising such a rotor, and methods for producing such rotors. |
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