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公开(公告)号：US06846160B2
公开(公告)日：2005-01-25
申请号：US10436984
申请日：2003-05-14
申请人： Eiji Saito , Kiyoshi Namura , Yutaka Yamashita , Masakazu Takasumi , Yoshiaki Yamazaki , Yoshio Shikano , Kazuo Ikeuchi , Masumi Katayose
发明人： Eiji Saito , Kiyoshi Namura , Yutaka Yamashita , Masakazu Takasumi , Yoshiaki Yamazaki , Yoshio Shikano , Kazuo Ikeuchi , Masumi Katayose
CPC分类号： F01D5/141 , F01D5/225 , F05D2240/301
摘要： The present invention relates to a turbine bucket to be provided at the low pressure last stage of a steam turbine and an object of the present invention is to provide a turbine bucket in which the adjacent blades are connected without using a connecting member at a blade intermediate portion. In order to achieve the object of the present invention, a turbine bucket of the present invention is formed in such a manner that the blade sectional configuration is twisted from a blade root portion to a blade tip side, and when assuming two axial directions in a blade section of the bucket on horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at predetermined heights from the blade root portion of the turbine bucket are formed in a range of ±0.3 mm from respective points defining blade section configurations as shown respectively in chart 1, chart 4, chart 7, chart 10, chart 13, chart 16 and chart 18.
摘要翻译： 本发明涉及一种在蒸汽轮机的低压最后阶段提供的涡轮机桶，其目的在于提供一种涡轮机铲斗，其中相邻的叶片在叶片中间不使用连接构件而连接 一部分。 为了实现本发明的目的，本发明的涡轮机叶片以这样的方式形成，即叶片截面形状从叶片根部扭转到叶片前端侧，并且当在 在水平面上的铲斗的叶片部分，并且沿着一个轴向作为X轴，另一个轴向垂直于X轴作为Y轴，从涡轮叶片的叶片根部预定高度的叶片部分形成在 分别如图1，图4，图表7，图表10，图表13，图表16和图表18所示的各个点的±0.3 mm。
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公开(公告)号：US06579066B1
公开(公告)日：2003-06-17
申请号：US09958604
申请日：2001-10-12
申请人： Eiji Saito , Kiyoshi Namura , Yutaka Yamashita , Masakazu Takasumi , Yoshiaki Yamazaki , Yoshio Shikano , Kazuo Ikeuchi , Masumi Katayose
发明人： Eiji Saito , Kiyoshi Namura , Yutaka Yamashita , Masakazu Takasumi , Yoshiaki Yamazaki , Yoshio Shikano , Kazuo Ikeuchi , Masumi Katayose
IPC分类号： F01D512
CPC分类号： F01D5/3023 , F01D5/141 , F01D5/225 , F05D2240/301 , Y10S416/02 , Y10S416/05
摘要： The present invention is a turbine bucket for at the low pressure last stage of a steam turbine and in which the adjacent blades are connected without using a connecting member at a blade intermediate portion. A turbine bucket of the present invention is formed that the blade sectional configuration is twisted from a blade root portion to a blade tip side, and when assuming two axial directions in a blade section of the bucket on horizontal plane and taking one axial direction as X axis and the other axial direction perpendicular to X axis as Y axis, the blade sections at predetermined heights from the blade root portion of the turbine bucket are formed in a range of ±0.3 mm from respective points defining blade section configurations.
摘要翻译： 本发明是一种用于在蒸汽轮机的低压最后阶段的涡轮机桶，其中相邻的叶片在叶片中间部分不使用连接构件而连接。 本发明的涡轮机叶片形成为叶片截面形状从叶片根部扭转到叶片前端侧，并且当在水平面上在铲斗的叶片部分中假定两个轴向并且沿着一个轴向作为X时 并且与X轴垂直的另一个轴向为Y轴，来自涡轮叶片的叶片根部的预定高度的叶片部分形成在限定叶片部分构造的各个点的±0.3mm的范围内。
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公开(公告)号：US5829955A
公开(公告)日：1998-11-03
申请号：US790796
申请日：1997-01-30
摘要： A steam turbine is provided with moving blades which are affected less by erosion and fretting wear due to water and have a high reliability in strength. The moving blades are twisted moving blades, each provided with a blade portion and a shroud portion formed at its tip and a contact surface between shroud portions connecting adjacent moving blades whereby an extension plane of the contact surface toward the blade back side does not intersect with the blade tip of the blade back side shroud portion.
摘要翻译： 蒸汽轮机设置有由于水而受到侵蚀和微动磨损的影响较小的移动叶片，并且具有高的强度可靠性。 活动叶片是扭动的活动叶片，每个叶片部分和形成在其顶端处的护罩部分和连接相邻移动叶片的护罩部分之间的接触表面，从而接触表面朝向叶片后侧的延伸平面不与 叶片后侧护罩部分的叶片尖端。
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