Back to results
US 4,289,971 AGranted
Electric power generation equipment incorporating bulb turbine-generator
AssigneeFuji Electric Co., Ltd.
InventorTsuneo Ueda
Life of this patent
Estimating the term…
Abstract
A hydroelectric power generator having a bulb turbine generator housed in a bulb shaped inner casing. The turbine runner of the generator is connected to a main shaft of the electric power generator. The outer casing is coupled to the inner casing by stay vanes. A draft tube is coupled to the downstream end of the outer casing. A liftable gate is positioned to retain water in the open channel and the outer casing is fixedly secured to the gate and vertically movable with it.
Claims9
A movable hydroelectric power generation system in a water channel comprising:
- a bulb turbine generator comprising an electric power generator housed in a bulb shape inner casing and a turbine runner connected to a main shaft of said electric power generator;
- an outer casing having annular upstream and downstream ends, disposed outside said inner casing and positioning said inner casing by stay vanes so as to position said generator partially within said outer casing and partially outside said outer casing;
- a draft tube coupled to said annular downstream end of said outer casing;
- and a liftable gate positioned to dam up said water channel, said gate being vertically movable, said gate having an annular opening, and said annular upstream end of said outer casing being fixedly secured to said annular opening of said gate, whereby said generator is disposed on both the upstream and downstream sides of said gate, to thereby minimize the upstream and downstream extent of said movable generator system whereby the vertical movement of said generator system is enhanced by the minimal extent of said generator system.
1 more element
Dependencies are inferred from the claim text.