Alstom Hydro France

Alstom Renewable Technologies

Monique Traversaz

Farid Mazzouji

A hydraulic machine through which a main flow of water passes including at least one turbine blade having an upstream end and a downstream end and a channel extending an entire length of the blade for tapping flow from the main flow adjacent the upstream end of the blade and discharging the tapped flow at the downstream end of the blade in a direction of the main flow.

Hydraulic machine including means for injecting a flow drawn from a main flow

The invention relates to a machine through which a main flow (E) of water passes, including a turbine wheel (), with at least a turbulent zone, reduced-pressure zone or cavitation zone () being formed close to said wheel. The wheel includes blades () disposed between a ceiling () and a belt (). The machine also includes means for injecting a flow (E) drawn from the main flow into the aforementioned zone () such as to alter the main flow (E) locally or increase the pressure in said zone (). Said injection means inject the drawn flow (E) from the ceiling () or from the belt () through holes () provided in the ceiling () or belt ().

A Pelton hydraulic machine through which a main flow of water passes including at least one Pelton turbine manifold with at least a turbulent zone or a reduced-pressure zone being formed close to the manifold and wherein a secondary flow drawn from the main flow, and unaltered in relation to the main flow, is injected into the turbulent or reduced-pressure zone so as to alter the main flow locally or increase the pressure in the zone.

Growing community of inventors

Gieres, France

Monique Traversaz