Variable pitch hydraulic turbine - has blade holder rotated by actuator sleeve with planetary gearing carrying brake

摘要

The variable pitch hydraulic turbine has a housing (3) containing a rotor (1) with the movable blades (2) mounted in a sleeve (12) connected to each blade holder. The actuator is coupled to each blade holder, having a hydraulic cylinder (51-52) with a transmission. This has a screw coupling (51) with a threaded rod formed by the cylinder rod. The rod has a coupling to a planetary gear system with a brake (7) and clutch (8).