Patent ID: 9683537
Date: 2017-06-20
CPC Classifications: F03B,Y02E

Claim:
1. A turbine for a hydroelectric power plant comprising: a hub; a plurality of turbine blades coupled to the hub; a pitch angle adjusting unit coupled to the turbine blades for adjusting the pitch angle of the turbine blades; a double-acting hydraulic cylinder; a piston rod coupled to the pitch angle adjusting unit so that the pitch angle adjusting unit performs a rotational movement when the piston rod is moved in a longitudinal direction, the piston rod including first and second hydraulic lines; and a hydraulic chamber coupled by way of the first and second hydraulic lines so that the double-acting hydraulic cylinder is displaceable by providing hydraulic fluid through the first or second hydraulic lines and to cause adjustments to the pitch angle of the turbine blades due to coupling between the piston rod and the pitch angle adjusting unit, wherein the turbine is located in the hydroelectric power plant including: