Hydraulic machine, an energy conversion installation including such a machine, and a method of adjusting such a machine
AssigneeAlstom Hydro France
InventorsYves Bouvet, Jean-Francois Bertea
Life of this patent
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Abstract
This hydraulic machine has a wheel (2) mounted to move in rotation relative to a stationary structure (9) and about a stationary axis, said wheel being designed to pass a forced flow of water therethrough. At least one leak limiter device (100) for limiting water leaks is disposed between the wheel (2) and the stationary structure (9), said device defining operating clearance (J) between the wheel and the stationary structure. Said leak limiter device (100) has at least one deformable and/or movable member (103) that is deformable and/or movable in a radial direction (F1) relative to the axis of rotation of the wheel, while the wheel is rotating.
Claims22
1-15. (canceled)
A hydraulic machine having a wheel mounted to move in rotation relative to a stationary structure and about a stationary axis, the wheel being designed to pass a forced flow of water therethrough, while at least one leak limiter device for limiting water leaks is disposed between the wheel and the stationary structure, said device defining an operating clearance, between the wheel and the stationary structure, and having at least one deformable and/or movable member that is deformable and/or movable in a radial direction relative to the axis of rotation, while the wheel is rotating, wherein the deformable and/or movable member is deformable and/or mobile in the radial direction, between a first configuration corresponding to a first value of the operating clearance and a second value corresponding to a second value of the operating clearance and in that the machine includes means to control switching of the deformable and/or movable member from its first configuration to its second configuration depending on the operating speed of the machine.
Dependencies are inferred from the claim text.