Patent ID: 7825531

Claim:
A hydraulic power generating device comprising: a flow path which is formed from a fluid inlet to a fluid outlet; a power generating hydraulic turbine which is disposed at a middle position of the flow path in an axially rotatable manner; and at least one ejection port which ejects water to the power generating hydraulic turbine; wherein the power generating hydraulic turbine comprises: a plurality of first blades which is projected on an outer peripheral side; and a cylindrical plate part which is coaxially structured with a rotating center axial line of the power generating hydraulic turbine at a position adjacent in an axial direction to the first blades; and the ejection port is opened both to the plurality of first blades and to the cylindrical plate part of the power generating hydraulic turbine; and the ejection port is structured so as to eject water to hit both the plurality of first blades and an outer face of the cylindrical plate part, thereby performing a centering operation to the power generating hydraulic turbine by the pressure of the water that hits the cylindrical plate part.