| 摘要 |
The invention refers to a runner for a water turbine with turnable blades. The blade wheel contains a hub (1) with blades (2) which is equipped with a cavity (5) for taking in a servotool (3) and a cavity (6) for taking in a mechanism (4) for turning the blades (2). In the part, where a piston rod (9) is introduced through a hole (7') in a dividing wall (7), which is intended to divide cavity (5) from cavity (6), a hermitically connected sealing device is set up (18), which is designed to prevent oil from coming into the cavity (6) for taking in the mechanism (4) for turning the blades (2). The sliding surfaces of the links in the mechanism (4) for turning the blades (2) are produced of self-lubricating material. The invention can possibly be used on water turbines intended to work at a drop of no greater than 80m.<IMAGE> |
