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US 11,692,445 B2Granted
Pre-formed plug with inter-blade profiles for hydraulic turbines
AssigneeGE Renewable Technologies
InventorsBenoît Papillon, Carl-Anthony Beaubien, David Allan Scott, Laurent Bornard, Louis Mathieu
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Abstract
The invention concerns an inter-blade profile (14) for a turbine runner blade, said inter-blade profile (14) comprising a profile (16), and a plug (18), forming a basis of the profile (16) and intended for being inserted into a corresponding hole (21) made in a blade.
Claims18
A water turbine runner, comprising:
- a crown;
- a band;
- a plurality of runner blades arranged between the crown and the band;
- at least a first one of the runner blades comprising a hole in a sidewall thereof;
- an inter-blade profile extending transversely from the first runner blade, the inter-blade profile comprising:
- a profile component extending transversely from a plug, the plug forming a base insertable into the hole in the side wall of the first runner blade;
- the plug comprising an upper side that extends completely around and outwardly beyond the profile component and lateral walls such that the upper side extending around the plug is exposed and flush with the side wall of the first runner blade and the lateral walls extend into the first runner blade;
- and
- wherein the hole in the side wall of the first runner blade matches a shape of the plug so as to define a precise position and orientation of the inter-blade profile on the first runner blade.
6 more elements
A water turbine runner, comprising:
- a central hub;
- a plurality of runner blades extending from the central hub;
- at least a first one of the runner blades comprising a hole in a sidewall thereof;
- an inter-blade profile extending transversely from the first runner blade, the inter-blade profile comprising:
- a profile component extending transversely from a plug, the plug forming a base insertable into the hole in the side wall of the first runner blade;
- the plug comprising an upper side that extends completely around and outwardly beyond the profile component and lateral walls such that the upper side extending around the plug is exposed and flush with the side wall of the first runner blade and the lateral walls extend into the first runner blade;
- and
- wherein the hole in the side wall of the first runner blade matches a shape of the plug so as to define a precise position and orientation of the inter-blade profile on the first runner blade.
5 more elements
Dependencies are inferred from the claim text.