公开(公告)号：US06905307B2

公开(公告)日：2005-06-14

申请号：US10214170

申请日：2002-08-08

申请人： Satoshi Kawarada ,  Tsuneharu Kushida ,  Kenji Kawamoto ,  Hakaru Takamatsu ,  Atsukuni Waragai

发明人： Satoshi Kawarada ,  Tsuneharu Kushida ,  Kenji Kawamoto ,  Hakaru Takamatsu ,  Atsukuni Waragai

IPC分类号： F01D9/02 ,  F01D5/14

CPC分类号： F01D5/141 ,  Y10T29/49336 ,  Y10T29/49995 ,  Y10T29/49996

摘要： The stator vane is provided with a leading edge which is cut into a different depth in dependence on a span-wise position so that a blade inlet angle may vary along a span-wise direction according to a prescribed pattern. By thus optimizing the depth of the cut along the leading edge of the stator vane, the leading edge blade inlet angle can be optimized along the entire length of the stator vane even if the stator vane consists of a two-dimensional aerofoil, and the vane is provided with a substantially conformal cross section in parts which are not affected by the cut in the leading edge. Thereby, the efficiency of the turbine can be optimized while minimizing the cost.

摘要翻译： 定子叶片设置有前缘，其根据跨度位置被切割成不同的深度，使得叶片入口角度可以根据规定的图案沿跨度方向变化。 通过这样优化沿着定子叶片的前缘的切割深度，即使定子叶片由二维机翼组成，也可以沿着定子叶片的整个长度优化前缘叶片入口角度，并且叶片 设置有不受前缘中的切口影响的部分中的基本共形的横截面。 因此，可以优化涡轮机的效率，同时最小化成本。

公开(公告)号：US20050123405A1

公开(公告)日：2005-06-09

申请号：US10949395

申请日：2004-09-27

申请人： Takashi Ono ,  Hakaru Takamatsu

发明人： Takashi Ono ,  Hakaru Takamatsu

IPC分类号： F01D5/30 ,  F01D11/00

CPC分类号： F01D5/3015 ,  F01D11/005

摘要： In an axial turbine wheel including a rotor disk and a plurality of turbine blades each having a base end retained by the rotor disk via a joint and extending radially from the rotor disk, a seal plate is received in outer and annular slots formed in the base ends of the turbine blades and rotor disk, respectively, and an annular shoulder is formed in the wall defining the inner annular slot on a side remote from the rotor disk, the annular shoulder thereby defining an inner narrow section and an outer wide section in the inner annular slot. Thus, the seal plate can be easily placed in position by first fitting the inner peripheral edge thereof in the inner narrow section of the inner annular slot, fitting the outer peripheral edge thereof in the outer annular slot until the inner peripheral edge clears the annular shoulder. Thereby, the outer and inner peripheral edges of the seal plate are received in the outer annular slot and outer wide section of the inner annular slot. The outer peripheral edge of the seal plate may abut the bottom of the outer annular slot so as to allow the seal plate to be firmly retained even when subjected to a large centrifugal force.

摘要翻译： 在包括转子盘和多个涡轮叶片的轴向涡轮机叶轮中，每个涡轮叶片具有经由接头由转子盘保持的基端并且从转子盘径向延伸的密封板，密封板被容纳在基部中形成的外部和环形槽中 涡轮叶片和转子盘的端部，并且在远离转子盘的一侧上形成限定内部环形槽的壁的环形肩部，环形肩部由此限定内部狭窄部分和外侧宽度部分 内环形槽。 因此，密封板可以通过首先将其内周边缘装配在内环形槽的内部狭窄部分中而容易地放置在适当位置，将其外周边缘装配在外环形槽中，直到内周边缘清除环形肩 。 因此，密封板的外周边缘和内周边缘容纳在内环形槽的外环形槽和外宽部中。 密封板的外周缘可以邻接外环形槽的底部，以便即使经受大的离心力也能够使密封板牢固地保持。

公开(公告)号：US07264447B2

公开(公告)日：2007-09-04

申请号：US10949395

申请日：2004-09-27

申请人： Takashi Ono ,  Hakaru Takamatsu

发明人： Takashi Ono ,  Hakaru Takamatsu

IPC分类号： F01D1/02

CPC分类号： F01D5/3015 ,  F01D11/005

摘要： In an axial turbine wheel including a rotor disk and a plurality of turbine blades each having a base end retained by the rotor disk via a joint and extending radially from the rotor disk, a seal plate is received in outer and annular slots formed in the base ends of the turbine blades and rotor disk, respectively, and an annular shoulder is formed in the wall defining the inner annular slot on a side remote from the rotor disk, the annular shoulder thereby defining an inner narrow section and an outer wide section in the inner annular slot. Thus, the seal plate can be easily placed in position by first fitting the inner peripheral edge thereof in the inner narrow section of the inner annular slot, fitting the outer peripheral edge thereof in the outer annular slot until the inner peripheral edge clears the annular shoulder. Thereby, the outer and inner peripheral edges of the seal plate are received in the outer annular slot and outer wide section of the inner annular slot. The outer peripheral edge of the seal plate may abut the bottom of the outer annular slot so as to allow the seal plate to be firmly retained even when subjected to a large centrifugal force.

摘要翻译： 在包括转子盘和多个涡轮叶片的轴向涡轮机叶轮中，每个涡轮叶片具有经由接头由转子盘保持的基端并且从转子盘径向延伸的密封板，密封板被容纳在基部中形成的外部和环形槽中 涡轮叶片和转子盘的端部，并且在远离转子盘的一侧上形成限定内部环形槽的壁的环形肩部，环形肩部由此限定内部狭窄部分和外侧宽度部分 内环形槽。 因此，密封板可以通过首先将其内周边缘装配在内环形槽的内部狭窄部分中而容易地放置在适当位置，将其外周边缘装配在外环形槽中，直到内周边缘清除环形肩 。 因此，密封板的外周边缘和内周边缘容纳在内环形槽的外环形槽和外宽部中。 密封板的外周缘可以邻接外环形槽的底部，以便即使经受大的离心力也能够使密封板牢固地保持。