Hydraulic machine, installation of converting hydraulic energy into electrical energy, or vice versa, and operating clearance adjustment process of an adjustable clearance leakage limiting device belonging to a hydraulic machine

摘要

A hydraulic machine including an impeller which rotates with respect to a fixed structure and about an axis of rotation by a forced flow of water passing through it and at least one device for limiting water leaks is positioned between the impeller and the fixed structure so as to define an operating clearance between the impeller and the fixed structure and including at least one member that can be deformed or moved, while the impeller is rotating and being fed with water, in a redial direction with respect to the axis of rotation of the impeller.