基本信息:
- 专利标题： 轴流式涡轮机
- 专利标题（英）：Axial flow turbine
- 申请号：CN200810212568.4 申请日：2002-08-29
- 公开(公告)号：CN101349167A 公开(公告)日：2009-01-21
- 发明人： 富永纯一 , 川崎荣 , 田沼唯士 , 今井健一
- 申请人： 株式会社东芝
- 申请人地址： 日本东京都
- 专利权人： 株式会社东芝
- 当前专利权人： 株式会社东芝
- 当前专利权人地址： 日本东京都
- 代理机构： 永新专利商标代理有限公司
- 代理人： 蔡胜利
- 优先权： 264722/2001 2001.08.31 JP
- 分案原申请号： 028167686
- 主分类号： F01D1/04
- IPC分类号： F01D1/04 ; F01D9/02 ; F01D5/14
In the axial turbine according to the present invention, a nozzle blade 1 and/or a movable blade 5 has a profile in which a throat-pitch ratio ''s/t'' is maximized at a blade-central portion in height, wherein 's' being a shortest distance between a rear edge of a nozzle blade (movable blade) and a back side of another nozzle blade that is adjacent to the nozzle blade, and 't' being a pitch of the nozzle blades disposed in the row, minimized in a position between the blade-central portion in height and a blade-root portion and increased from a minimized value to the blade-root portion. This structure enables to provide the axial turbine, which permits to control flow distribution of the working fluid in the height direction of the blade in the passage between the blades of a turbine nozzle unit and a turbine movable nozzle and reduce the blade profile loss and the secondary flow loss at the blade-root portion, thus making a further improvement in the turbine stage efficiency.
公开/授权文献:
- CN101349167B 轴流式涡轮机 公开/授权日：2012-10-17
IPC结构图谱:
| F | 机械工程；照明；加热；武器；爆破 |
| --F01 | 一般机器或发动机；一般的发动机装置；蒸汽机 |
| ----F01D | 非变容式机器或发动机，如汽轮机 |
| ------F01D1/00 | 非变容式机器或发动机，如汽轮机 |
| --------F01D1/02 | .带有静止工作流体导向装置和叶片式或类似的转子 |
| ----------F01D1/04 | ..工作流体基本上沿轴向通过 |