Abstract: A bearing assembly includes: a shaft; a housing; a support structure; at least one first seal; at least one electrode connected to the support structure and arranged between the support structure and the shaft such that an oil vapor from the oil bath, which passes through the at least one first seal, must pass through a gap between the at least one electrode and the shaft in order to escape, the bearing assembly being configured for an electrical voltage to be applied between the at least one electrode and the shaft so as to direct oil particles contained in the oil vapor onto the at least one electrode such that the oil particles are separated at the at least one electrode; and a drainage channel configured for enabling oil separated at the at least one electrode to flow through the drainage channel into the oil bath.

Abstract: A guide vane bearing for a hydraulic machine is provided, which may be serviced from the side of the water flow path, and a method for installing and removing a bearing of this type. The guide vane bearing includes a bearing support and a layer of bearing material and at least three segments, which are separately connectable to the bottom ring of the hydraulic machine, each segment including one part of the bearing support and one part of the layer of bearing material, and a joint between the segments being obliquely formed with respect to the bearing axis, so that one segment has a wedge shape, and the bearing furthermore including a bearing seal, and the bearing seal being rotatably fixedly connected to the trunnion of the guide vane, and the bearing support including a surface, which is designed as a running surface for the lip of the bearing seal.

Abstract: A flange sealing system includes two bodies that each have a respective flat surface and are interconnected so that the surfaces face one another. At least one of the bodies has a groove with parallel side walls recessed into the flat surface. An elastic profile with an H-shaped cross-section is arranged in the groove in such a way that at least a part of the vertical regions of the elastic profile is arranged parallel to the side walls of the groove. In at least one portion of the space between the vertical regions of the elastic profile, a cured liquid is arranged in such a way that the profile is adhesively connected to the groove in the region of the base surface of the groove. The cured liquid is elastic.

Abstract: A flange sealing system includes two bodies that each have a respective flat surface and are interconnected so that the surfaces face one another. At least one of the bodies has a groove with parallel side walls recessed into the flat surface. An elastic profile with an H-shaped cross-section is arranged in the groove in such a way that at least a part of the vertical regions of the elastic profile is arranged parallel to the side walls of the groove. In at least one portion of the space between the vertical regions of the elastic profile, a cured liquid is arranged in such a way that the profile is adhesively connected to the groove in the region of the base surface of the groove. The cured liquid is elastic.

Abstract: A guide vane bearing for a hydraulic machine is provided, which may be serviced from the side of the water flow path, and a method for installing and removing a bearing of this type. The guide vane bearing includes a bearing support and a layer of bearing material and at least three segments, which are separately connectable to the bottom ring of the hydraulic machine, each segment including one part of the bearing support and one part of the layer of bearing material, and a joint between the segments being obliquely formed with respect to the bearing axis, so that one segment has a wedge shape, and the bearing furthermore including a bearing seal, and the bearing seal being rotatably fixedly connected to the trunnion of the guide vane, and the bearing support including a surface, which is designed as a running surface for the lip of the bearing seal.

Abstract: A ring gate for interrupting the water flow through the water path of a hydraulic machine having a rotor and a spiral. The ring gate includes a first hollow body extending around the rotor axis and is designed to be moved from an open position into a closed position and back in axial direction, whereby no water flow through the hydraulic machine can occur if the first body is in the closed position. The ring gate includes a second hollow body extending around the rotor axis and is designed to be moved from a first position outside of the water path into a second position within the water path and back in axial direction, wherein the second body has openings in its wall through which water can flow when the second body is in the second position and the first body is not in the closed position.

Abstract: A hydraulic turbo machine has a runner that is impinged by water. A diffuser has a multiplicity of guide blades. The diffuser includes a regulating ring for rotating the guide blades. At least one hydraulic servomotor is connected to the regulating ring or to the runner blades. The servomotor has a multiple stage configuration. The housings of the stages are fixedly connected to one another and the pistons of the stages interact only in a part range of the entire adjusting range of the servomotor.

Abstract: The invention relates to a hydraulic machine having turbines or a pump turbine, comprising an impeller that is mounted such as to be rotatable about a vertical axis of rotation and has a plurality of blades, an inlet spiral that surrounds the impeller in an annular manner and has a circular outlet opening on the inner circumferential ring thereof, a distributor and/or closure device for adjusting the inflow into the impeller, and an intake manifold for guiding of the water flowing out of the impeller. The intake manifold is arranged above the impeller. At least a bypass pipe can be provided for bypassing the distributor and/or closure device, which bypass pipe connects the inlet spiral directly to the impeller when a bypass valve arranged in the run of said bypass pipe is opened. Furthermore, at least one drainage pipe can be provided for draining the impeller, which drainage pipe connects the impeller directly to a pump sump when a drainage valve arranged in the nm of said drainage pipe is opened.

Abstract: A machine assembly having a drive comprising an output shaft, a working machine which has a driveshaft, a coupling unit connected between the drive and the working machine. The coupling unit including a non-positive coupling and a positive coupling, where the positive coupling comprises at least two coupling elements, at least one of the coupling elements being rotatable relative to at least one of the remaining coupling elements of the non-positive and/or positive coupling by a specified angular range, and a switch which switches from the non-positive coupling to the positive coupling when a target rotational speed or a specified transmitted torque is achieved.

Abstract: The invention relates to a hydraulic turbomachine comprising a runner acted upon by water, said runner having a plurality of guide vanes, a spiral housing enclosing the runner, a traverse ring having two traverse ring decks that are interconnected by cross-beams, and lengths of pipe enveloping the traverse ring, said lengths of pipe being interconnected one after the other in the circumferential direction and the flow-sections thereof tapering in the flow direction of the water.