Patent ID: 7948106
Filing Date: 2011-05-24
Classification: F03B,F05B,Y02E

Abstract:
1. A power generator, characterized by including: a first hydraulic turbine, immersed in a flowing body of water, which is driven by a flow of the water; a pump, immersed in the flowing body of water, which is connected to the first hydraulic turbine and draws up a part of the water; a pressure controlling means, located remotely from the flowing body of water, which accepts water discharged from the pump and limits the pressure of the water discharged from the pump to a predetermined pressure, wherein the pressure controlling means limits said pressure by returning a part of the accepted water to a downstream pipe; a second hydraulic turbine, located remotely from the flowing body of water, which is driven by the water received from the pressure controlling means; a speed governor that governs the speed of the second hydraulic turbine; and a dynamo, located remotely from the flowing body of water, which is driven by the second hydraulic turbine, wherein the speed governor automatically adjusts a quantity of the water supplied from the pressure controlling means to the second hydraulic turbine in line with a variation in the load of the dynamo to prevent a variation in a frequency of revolution of the dynamo.