Title:
水力機械の曲がり吸出し管
Document Type and Number:
Japanese Patent JP4764244
Kind Code:
B2
Abstract:
The present invention relates to a bending draft tube of the hydraulic machinery, the bending draft tube is connected to the impeller of the hydraulic machinery, is used to change the potential energy of the current to the rotating energy and the downriver diversion channel, the bending draft tube include: the flexure connected to the exit port of the impeller; the expanding part which is horizontally directed and connected to the expending part of the flexure, the expending part is provided with a section area which increases to the downstream side. Among the low-water mark of the flow circuit in the bending draft tube, the inner low-water mark of the flexure in the bending draft tube is situated at the expending part side of one section, and the section includes the point which is nearest to the revolution axis cord of the hydraulic machinery.
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Inventors:
Kazuyuki Nakamura
Kurosawa Sadao
Suzuki Toshiaki
Kurosawa Sadao
Suzuki Toshiaki
Application Number:
JP2006117659A
Publication Date:
August 31, 2011
Filing Date:
April 21, 2006
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
F03B11/00
Domestic Patent References:
| JP57181973A | ||||
| JP54125333A |
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office