Alstom Renewable Technologies

Alstom Hydro France

Ge Renewable Technologies

Jean-François Bertea

Claude Beral

Yves Bouvet

Danièle Bazin

Rachel Chiappa

Daniéle Bazin

Eric Gaudin

Gérard Vuillerod

Jonathan Bedrossian

To recover the axial forces transmitted by a rotating shaft, a bearing assembly includes a plurality of distributed bearing units. Each bearing unit comprises: a stationary base; a resilient member having a stationary portion and a portion that is completely movable in a main direction of the forces to be supported; and a bearing surface that defines, together with the shaft, a water film. The bearing surface is connected to the movable portion. The minimum radius of the bearing surface is between 1 m and 3 m. The resilient member and the base define at least one water chamber. A plurality of ducts are arranged so as to connect the chambers together, thereby defining a closed circuit.

Bearing assembly for a marine turbine shaft, and marine turbine including such a bearing assembly

This member () can be attached to the crown () of a wheel () of a hydraulic machine. It is provided with a skin () of which a surface () is able to be arranged in the continuation of a wet surface () of the crown. This member is equipped with at least one fun () arranged radially inside the skirt () and projecting axially (h) from the skirt () in the downward direction.

Tip-forming member for a wheel of a hydraulic machine, and wheel and hydraulic machine equipped with such a member

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Saint Jean de Muzols, France

Jean-François Bertea