| 摘要 |
A central assembly includes a shaft, a generator and a water turbine which are axially spaced apart and non-rotatably connected to said shaft, and bearing means for said shaft. A housing assembly is mounted or adapted to be mounted in a duct structure, which defines a flow passage. The housing assembly comprises a shell, which surrounds or is adapted to surround said central assembly so that said turbine is adapted to receive water from said flow passage, at least two arms, each of which projects radially from said shell and has an outer end which is anchored or adapted to be anchored in said duct structure, and an inner end disposed inside said shell, a plurality of spars, each of which extends in said shell substantially parallel to the axis of said shaft and is rigid with the inner end of one of said arms and has a first end portion disposed or adapted to be disposed near said turbine and a second end portion disposed or adapted to be disposed near said generator, a peripheral reinforcing flange disposed in and rigid with said shell and with said first end of each of said spars, and retaining means disposed in and rigid with said shell and said second end portion of each of said spars, whereby said arms are rigidly interconnected. |
