A hydraulic motor is provided. The device includes a manifold member having an inner volume, a fluid inlet orifice and a fluid outlet orifice. The device further includes a power generating member having a channel grooved drive. The inner volume receives the power generating member within the inner volume and retains the power generating member within the inner volume. The power generating member rotates and generates power to be supplied to an external device in response to hydraulic fluid flowing into the manifold member through the inlet orifice and out of the manifold member through the outlet orifice.

An underwater turbo-generator unit for producing electrical power has a pressure-resistant shell that defines a sealed internal chamber. At least one water inlet extends through the shell to effect fluid communication between the chamber and a body of water surrounding the shell. A turbine is supported within the chamber to turn on a spin axis in response to admission of a flow of water into the chamber via the or each water inlet. The shell is arranged to maintain a gas-filled space within the chamber, facilitating the use of a Pelton turbine that turns about a vertical spin axis. The or each water inlet communicates with at least one tubular penstock structure that can be supported by the unit outside the shell. The chamber communicates with, and drains water into, a fluid storage volume such as a pipeline positioned at a level beneath the chamber.

An underwater turbo-generator unit for producing electrical power has a pressure-resistant shell that defines a sealed internal chamber. At least one water inlet extends through the shell to effect fluid communication between the chamber and a body of water surrounding the shell. A turbine is supported within the chamber to turn on a spin axis in response to admission of a flow of water into the chamber via the or each water inlet. The shell is arranged to maintain a gas-filled space within the chamber, facilitating the use of a Pelton turbine that turns about a vertical spin axis. The or each water inlet communicates with at least one tubular penstock structure that can be supported by the unit outside the shell. The chamber communicates with, and drains water into, a fluid storage volume such as a pipeline positioned at a level beneath the chamber.

The present invention relates generally to facilities and systems capable of initiating and maintaining vertical flow, upward, within an extended-length water column by inducing changes in density throughout the column. Specifically, the induced (vertical) flow of water within an extended water column that is the present invention is accomplished through fluid aeration, with ambient air, which is directed toward producing ascending water flow rates sufficient to generate hydraulic pressure and hydraulic powered energy, through generated radial force in hydraulic turbines. It is another goal of this invention to utilize air infused water, derived from high-density and low depths, to create said vertical flow and induce turbine actuation through said unaltered, recyclable mediums—air and water—resulting in electrical power generation and desalination.

The present invention relates generally to facilities and systems capable of initiating and maintaining vertical flow, upward, within an extended-length water column by inducing changes in density throughout the column. Specifically, the induced (vertical) flow of water within an extended water column that is the present invention is accomplished through fluid aeration, with ambient air, which is directed toward producing ascending water flow rates sufficient to generate hydraulic pressure and hydraulic powered energy, through generated radial force in hydraulic turbines. It is another goal of this invention to utilize air infused water, derived from high-density and low depths, to create said vertical flow and induce turbine actuation through said unaltered, recyclable mediums—air and water—resulting in electrical power generation and desalination.

A turbomachinery includes a casing, a rotor shaft rotatably attached to the casing, a first blade row fixed to either one of the rotor shaft or the casing, and a second blade row fixed to either one of the rotor shaft or the casing and arranged adjacent to the upstream side or downstream side of the first blade row, wherein the turbomachinery sets the number of first blades and the number of second blades in a manner that the interblade phase angle difference of the second blade row is ±180°.

Provided is a cylinder device capable of preventing rotation unevenness while reducing power consumption and achieving compactification in particular. The present invention is to provide a cylinder device including a cylinder body and a shaft member supported in the cylinder body, the cylinder body being provided with a rotation port that communicates with an outer circumferential surface around the shaft member and rotates the shaft member based on a supply and discharge of a fluid. Thus, it is possible to prevent rotation unevenness while reducing power consumption and achieving compactification.

A cable driven irrigation device has a frame that acts as a manifold to supply a sprinkler head and a separate spray nozzle. The frame is supplied with an externally triggered latching valve. The valve is held in the open position by a spring and has an internal flap that enters the flow of water through the valve when the external trigger is moved. The water flow moves the flap to the closed position and holds it there until the water pressure is removed. The spray nozzle dispenses water onto an exposed turbine which drives a gearbox. The gearbox is coupled to a spool which can wind up a cord. The spool being wound is what pulls the sprinkler along. A knot near the end of the cord engages the external trigger to stop the flow of water into the frame.

A method of controlling a power generation apparatus and a pumped storage power generation apparatus including a motor directly connected to a rotor of a generator or generator motor, the method performing speed control by providing a guide vane opening degree command to the motor, the guide vane opening degree command being calculated by a rotational speed controller including a proportional control element, an integral control element, and a differential control element, in which a first upper limit limiting function is multiplied by a second upper limit limiting function, the first upper limit limiting function being included in an output runaway prevention circuit of an integral control function provided in the integral control element and being defined according to an output signal of a load limiter.

A method of controlling a power generation apparatus and a pumped storage power generation apparatus including a motor directly connected to a rotor of a generator or generator motor, the method performing speed control by providing a guide vane opening degree command to the motor, the guide vane opening degree command being calculated by a rotational speed controller including a proportional control element, an integral control element, and a differential control element, in which a first upper limit limiting function is multiplied by a second upper limit limiting function, the first upper limit limiting function being included in an output runaway prevention circuit of an integral control function provided in the integral control element and being defined according to an output signal of a load limiter.