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US 2020/0158073 A1Published application
Runner for a hydroelectric axial turbine or pump
AssigneeVoith Patent GmbH
InventorsSTUART COULSON, SETH SMITH, WALTER RIEGLER, THOMAS ORT
Life of this patent
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Abstract
A propeller-type runner for a hydraulic turbine or pump has a hub and a plurality of blades. Up to and including two blades are fixed to the hub using bolts. The remaining blades are welded to the hub. Each bolted blade is adjoined by two welded blades.
Claims6
1-5. (canceled)
A propeller-type runner for a hydraulic turbine or pump, the runner comprising:
- a hub;
- a plurality of blades mounted to said hub;
- said blades including up to two bolted blades affixed to said hub by way of bolts and remaining said blades being welded blades that are welded to said hub;
- and
- each said bolted blade being adjoined by two said welded blades.
2 more elements
Dependencies are inferred from the claim text.