Patent ID: 6926494
Filing Date: 2005-08-09
Classification: F03B,F05B,Y02E,Y02P,Y10T

Abstract:
1. A hydraulic turbine with increased power capacities, comprising: an axial runner wheel having a rotation axis; a runner ring peripherally extending around the runner wheel; a draft tube extending on a downstream side of the runner ring; a water supply port extending around the rotation axis of the runner wheel on an upstream side of the runner ring, and adapted to produce a substantially centripetal water flow swirling around the rotation axis of the runner wheel; a turning passageway extending between the water supply port and the runner ring, and adapted to guide and redirect the centripetal water flow in a substantially axial direction of the runner wheel; an axial distributor extending between the turning passageway and the runner wheels; and a bottom pit liner peripherally extending around the axial distributor and the runner ring; and wherein the water supply port comprises a stay ring next to the turning passageway and a conical support ring attaching a lower part of the water supply port to the stay ring and to the bottom pit liner.