Abstract: A hydroelectric power station has an energy unit including a turbine and a generator. The impeller of the turbine includes an impeller ring and turbine blades. The radially outer ends of the turbine blades are fixed to the inner surface of the impeller ring, and the radially inner ends of the turbine blades are free and together form a central passage. The impeller ring is surrounded by the generator and acts as a bearing therefor.

Abstract: The invention relates to a radial bearing for mounting a shaft, comprising the following features: several bearing shells which are curved according to the radius of the shaft and whose inner surface forms the plain bearing surfaces; a housing enclosing the bearing shells; at least one of the end regions of the respective bearing shell as seen in the circumferential direction is held in an interlocking manner on the housing in such a way that expansion and/or displacement of the end region or the entire bearing shell is possible; means for setting the curvature of the individual bearing shell.

Abstract: The invention concerns a run-of-river power plant with the following components or features: at least one module or several stand-alone modules, which are arranged close to one another in the flow direction, respectively comprising at least one energy unit; each energy unit comprises a water turbine and a generator; every module includes an upstream retaining wall as well as a downstream bearing wall; an intermediate space is situated between both walls; a rake, which extends between the upper edge of the retaining wall and the upper edge of the bearing wall and covers the intermediate space; a suction channel is connected to the energy unit.

Abstract: The invention relates to a radial bearing for mounting a shaft, comprising the following features: several bearing shells which are curved according to the radius of the shaft and whose inner surface forms the plain bearing surfaces; a housing enclosing the bearing shells; at least one of the end regions of the respective bearing shell as seen in the circumferential direction is held in an interlocking manner on the housing in such a way that expansion and/or displacement of the end region or the entire bearing shell is possible; means for setting the curvature of the individual bearing shell.

Abstract: The invention concerns a run-of-river power plant with the following components or features: at least one module or several stand-alone modules, which are arranged close to one another in the flow direction, respectively comprising at least one energy unit; each energy unit comprises a water turbine and a generator; every module includes an upstream retaining wall as well as a downstream bearing wall; an intermediate space is situated between both walls; a rake, which extends between the upper edge of the retaining wall and the upper edge of the bearing wall and covers the intermediate space; a suction channel is connected to the energy unit.

Abstract: A hydroelectric power station has an energy unit including a turbine and a generator. The impeller of the turbine includes an impeller ring and turbine blades. The radially outer ends of the turbine blades are fixed to the inner surface of the impeller ring, and the radially inner ends of the turbine blades are free and together form a central passage. The impeller ring is surrounded by the generator and acts as a bearing therefor.