A method of mounting a guide apparatus of a large hydraulic machine with a vertical axis of rotation and wherein the axes of the guide blades extend vertically as well. The method includes the following steps: assembling an assembly with at least the upper guide wheel ring or the turbine cover and all the guide blades of the guide apparatus. This assembly does not take place in the machine shaft and the guide blades are mounted in a suspended manner, lowering the guide blades to mutually different height levels within the assembly such that the lowered guide blades can be displaced upwardly, installing the lower guide wheel ring in the machine shaft, and installing the assembly in the machine shaft by continuous lowering, wherein the guide blades present in the assembly are successively inserted into the openings provided in the lower guide wheel ring.

A method of mounting a guide apparatus of a large hydraulic machine with a vertical axis of rotation and wherein the axes of the guide blades extend vertically as well. The method includes the following steps: assembling an assembly with at least the upper guide wheel ring or the turbine cover and all the guide blades of the guide apparatus. This assembly does not take place in the machine shaft and the guide blades are mounted in a suspended manner, lowering the guide blades to mutually different height levels within the assembly such that the lowered guide blades can be displaced upwardly, installing the lower guide wheel ring in the machine shaft, and installing the assembly in the machine shaft by continuous lowering, wherein the guide blades present in the assembly are successively inserted into the openings provided in the lower guide wheel ring.

A runner for a hydraulic turbine or pump, including a plurality of plurality of blades, each blade being defined by a pressure surface, an oppositely facing suction surface, a leading edge and a spaced apart trailing edge, at least one of the plurality of blades having a gas inlet aperture and a gas passage for supplying a flow of oxygen containing gas to the trailing edge of the same blade. The same blade also includes a continuous opening in the trailing edge to admit gas out of the gas passage to the passing fluid during operation of the runner. The continuous opening extends over at least 15% of the developed length of the trailing edge.

A hydroelectric power generation device is structure to utilize water flowing to generate electrical power that could be supplied to a bathroom installation and is generally made up of a functional main body, a battery assembly, and a power generation module. The functional main body has two opposite sides each including a mounting end formed thereon. The functional main body forms therein a receiving chamber. The power generation module includes a stator and a rotor. The rotor is coupled, in a manner of being rotatable, to an axle, which is coupled to a vane wheel. Water flowing into the device drives the vane wheel and the rotor to rotate simultaneously so that magnetic interaction between the rotor and the stator generates electrical power that is supplied to a sensor controlling supply of water flow. A sleeve is fit over the axle for correcting and stably supporting the axle in rotation.

The present invention addresses the problem of providing a swash-plate hydraulic motor or a swash-plate hydraulic pump having a structure in which the swash plate can be stably held without mounting a shoe to the swash plate-side end of a tilt control piston. An example of the embodiment of the present invention is a swash-plate hydraulic motor (1). A spherical section (8b) is integrally formed on the swash plate-side end surface of a tilt piston (8), and a groove (10) into which the spherical section (8b) is fitted in a slidable manner is formed in the support surface (7b) (second support surface (7b2)) of the swash plate (7). The groove (10) is a part of the second support surface (7b2) and has a shape having a predetermined width and having a longitudinal direction which is oriented perpendicularly to the direction which connects two pivots (11).

The world is being subjected to droughts that lower the lakes that provide the water for hydropower electricity production. Cities and towns around the dams also consume the water. At a certain point, the water level is too low for the dam to generate power. Hydropower Water Source Modification is a solution to this dilemma. A main piping loop from the output of the water after it passes through the turbine that spins the generator is connected to a high powered water pump at either the base of the dam and/or at the top of the dam. The piping loop is then connected to the intake of the penstock and completes the loop. The power supplied to the water pumps can be from one or more sources.

The world is being subjected to droughts that lower the lakes that provide the water for hydropower electricity production. Cities and towns around the dams also consume the water. At a certain point, the water level is too low for the dam to generate power. Hydropower Water Source Modification is a solution to this dilemma. A main piping loop from the output of the water after it passes through the turbine that spins the generator is connected to a high powered water pump at either the base of the dam and/or at the top of the dam. The piping loop is then connected to the intake of the penstock and completes the loop. The power supplied to the water pumps can be from one or more sources.

A thermal engine includes a thermal battery with a thermal mass for storing regenerative wind and solar energy using a solar lens and mechanical friction generated by the rotation of a wind turbine. The thermal engine comprises a thermal battery; a thermal engine; means of charging the thermal battery using natural energy including a solar lens; a wind turbine; and charging by electrical means. The invention further comprises a means of converting stored thermal energy to mechanical power using non-combustible fluids to drive devices such as an electric generator, a water pump; a means of using said thermal energy to directly heat homes and industrial facilities; a means of using said thermal energy for cooling homes and industrial facilities.

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.

Certain exemplary embodiments can provide a system that comprises a valve coupled to a water supply to a showerhead. The valve is constructed to turn a water flow on and off to the showerhead. The system comprises a first switch mounted outside of a shower stall. The first switch can be constructed to, responsive to a first user action, cause the valve to turn the water flow on.