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21. 发明申请

US20120261884A1 SHAFT SEAL DEVICE AND ROTARY MACHINE INCLUDING SHAFT SEAL DEVICE 有权
标题翻译：轴密封装置和旋转机器，包括轴封装置
公开(公告)号：US20120261884A1
公开(公告)日：2012-10-18
申请号：US13518559
申请日：2011-01-28
申请人： Hidekazu Uehara , Tanehiro Shinohara , Takashi Nakano , Shin Nishimoto
发明人： Hidekazu Uehara , Tanehiro Shinohara , Takashi Nakano , Shin Nishimoto
IPC分类号： F01D11/02
CPC分类号： F01D11/001 , F05D2230/90 , F05D2240/59 , F16J15/3292
摘要： There is provided a shaft seal device comprising a seal piece-laminated body (12) where a plurality of thin seal pieces (20) are laminated in the circumferential direction along a rotating shaft, outer ends of the plurality of thin seal pieces in the radial direction are connected to each other, inner ends (20b) of the thin seal pieces in the radial direction are formed as free ends, a small gap (s) is formed at every two thin seal pieces adjacent to each other, and a small gap (s) is formed between the rotating shaft and the seal piece-laminated body (12). A wear-resistant treatment layer (25) is formed on the surface of a portion of the thin seal piece close to the inner end.
摘要翻译：提供了一种轴封装置，其包括密封片层压体（12），其中沿着旋转轴在圆周方向上层叠有多个薄密封件（20），多个薄密封件的径向外径方向彼此连接，薄密封片的径向内侧端部（20b）形成为自由端，每两个彼此相邻的薄密封件形成有小的间隙，并且具有小的间隙在旋转轴和密封片层压体（12）之间形成一个或多个。在薄密封件的靠近内端的部分的表面上形成耐磨处理层（25）。

22. 发明授权

US06976680B2 Shaft seal structure and turbine 有权
标题翻译：轴密封结构和涡轮
公开(公告)号：US06976680B2
公开(公告)日：2005-12-20
申请号：US10253511
申请日：2002-09-25
申请人： Hidekazu Uehara , Tanehiro Shinohara , Kouichi Akagi , Masanori Yuri , Takashi Nakano , Shin Nishimoto
发明人： Hidekazu Uehara , Tanehiro Shinohara , Kouichi Akagi , Masanori Yuri , Takashi Nakano , Shin Nishimoto
IPC分类号： F01D11/00 , F02C7/28 , F16J15/32 , F16J15/54 , F16J15/447
CPC分类号： F16J15/3292
摘要： The shaft seal structure is based on a leaf seal that includes springs, disposed between the stator blades and the leaf seal ring, to force the leaf seal ring away from the rotation shaft, and pressure guiding grooves for guiding the fluid pressure, through a boundary of planar plates, to a space between the outer peripheral surface of the leaf seal ring and the inner peripheral surface of the stator blade. Also, a turbine may be provided with the leaf seal so as to reduce gas leakage from the high-pressure-region to the low-pressure-region as well as to control the frictional wear between the planar plates and the rotation shaft.
摘要翻译：轴封结构基于叶片密封件，其包括设置在定子叶片和叶片密封环之间的弹簧，以迫使叶片密封环远离旋转轴，以及用于引导流体压力的压力引导槽，通过边界平板的间隔设置在叶片密封环的外周面与定子叶片的内周面之间的空间。此外，涡轮机可以设置有叶片密封件，以便减少从高压区域到低压区域的气体泄漏，以及控制平板和旋转轴之间的摩擦磨损。

23. 发明授权

US07066468B2 Shaft seal and gas turbine 有权
公开(公告)号：US07066468B2
公开(公告)日：2006-06-27
申请号：US09983881
申请日：2001-10-26
申请人： Hidekazu Uehara , Tanehiro Shinohara , Kouichi Akagi , Masanori Yuri
发明人： Hidekazu Uehara , Tanehiro Shinohara , Kouichi Akagi , Masanori Yuri
IPC分类号： F16J15/44
CPC分类号： F16J15/3292
摘要： An object of the present invention is to provide a shaft seal which reduces the leakage of gas from the high pressure side to the low pressure side, and has excellent corrosion-resistance, and a gas turbine which is equipped with the shaft seal; in order to achieve the object, the present invention provide a shaft seal comprising a plurality of flexible thin plates having width in the axial direction of a rotary shaft, tips thereof sliding against a peripheral face of said rotary shaft, and outer peripheral bases thereof being secured to a casing side maintaining a gap therebetween, said thin plates being laminated in the peripheral direction of said rotary shaft, enabling the outer periphery of said rotary shaft to be sealed, an acute angle being formed between the thin plates and the peripheral face of said rotary shaft; and a low pressure side side-plate and a high pressure side side-plate which are provided on both sides of said thin plates in the axial direction of said rotary shaft, wherein it further comprises a gas pressure adjusting mechanism, which when said thin plates are viewed cross-sectionally along an imaginary plane which is perpendicular to the direction of their width, the face of each thin plate which faces the rotary shaft is deemed a bottom face and the rear side is deemed a top face, and gas pressure from said high pressure side side-plate to said low pressure side side-plate is applied to said thin plates, ensures that the gas pressure applied to said bottom faces is higher than the gas pressure applied to said top faces at a given point along said cross-sectional face of said thin plates, and a gas turbine comprising such shaft seal.

24. 发明授权

US06688847B2 Shaft structure and bearing structure for tail end of rotor of gas turbine 有权
标题翻译：燃气轮机转子尾端轴结构和轴承结构
公开(公告)号：US06688847B2
公开(公告)日：2004-02-10
申请号：US09942619
申请日：2001-08-31
申请人： Takeaki Oya , Kazuharu Hirokawa , Tadateru Tanioka , Tanehiro Shinohara , Katsunori Tanaka , Kazuo Uematsu
发明人： Takeaki Oya , Kazuharu Hirokawa , Tadateru Tanioka , Tanehiro Shinohara , Katsunori Tanaka , Kazuo Uematsu
IPC分类号： F01D508
CPC分类号： F01D5/085 , F01D5/08 , F01D25/125 , F05D2240/61 , F05D2260/205 , F05D2260/2322
摘要： A shaft structure of a rotor tail end of a gas turbine in which a steam passage for supplying and recovering a steam for cooling rotor blades of the gas turbine extends along a center axis of the rotor assembly of the gas turbine is provided, wherein a center hole of the rotor tail end coaxial to the center axis of the steam passage is formed in the rotor tail end. Provision is also made of a thermal sleeve between the steam passage and the inner surface of the center hole of the rotor tail end, so that a thermal insulation gas layer is formed between the inner surface of the center hole of the rotor tail end and the thermal sleeve. The thermal insulation gas layer is isolated gas-tightly and liquid-tightly from the outside.
摘要翻译：提供一种燃气轮机的转子尾端的轴结构，其中用于供应和回收用于冷却燃气涡轮机的转子叶片的蒸汽的蒸汽通道沿着燃气轮机的转子组件的中心轴延伸，其中中心在转子尾端形成有与蒸汽通道的中心轴同轴的转子尾端的孔。在蒸汽通道和转子尾端的中心孔的内表面之间还设置有热套筒，使得在转子尾端的中心孔的内表面和热套。绝热气体层从外部气密地液密隔离。

25. 发明授权

US06343792B1 Shaft seal and turbine using the same 有权
标题翻译：轴封和涡轮使用相同
公开(公告)号：US06343792B1
公开(公告)日：2002-02-05
申请号：US09525317
申请日：2000-03-13
申请人： Tanehiro Shinohara , Kouichi Akagi , Masanori Yuri , Masahiko Toyoda , Yutaka Ozawa , Akihiro Kawaguchi , Setunori Sakakibara , Zenichi Yoshida , Nobuhiro Kunitake , Takahiro Ohta , Hidehiko Nakane , Eisaku Ito , Yutaka Kawata , Koji Takeshita
发明人： Tanehiro Shinohara , Kouichi Akagi , Masanori Yuri , Masahiko Toyoda , Yutaka Ozawa , Akihiro Kawaguchi , Setunori Sakakibara , Zenichi Yoshida , Nobuhiro Kunitake , Takahiro Ohta , Hidehiko Nakane , Eisaku Ito , Yutaka Kawata , Koji Takeshita
IPC分类号： F16J1548
CPC分类号： F16J15/3288 , F01D11/001 , F05D2240/56 , F16J15/3292 , Y02T50/671
摘要： A shaft seal having a high abrasion resistance is disclosed, by which the leakage of the gas from the high-pressure side to the low-pressure side can be reduced. In the shaft seal, flexible leaves are multi-layered to form a ring shape. The shaft seal is mainly arranged around the rotation shaft of a gas turbine or the like. The relevant turbine comprises a casing, a compressor, a rotation shaft, moving blades attached to the rotation shaft, and stationary blades attached to the casing in a manner such that the stationary blades face the moving blades, wherein the shaft seals are provided between a plurality of stationary blades and the rotation shaft wherein the leaves of each shaft seal contact the rotation shaft. Under the rated operating conditions, the top ends of the leaves slightly separate from the surface of the rotation shaft due to the dynamic pressure generated by the rotation of the rotation shaft. When the turbine is not operated, the top ends of the leaves contact the rotation shaft again due to the elastic restoring force of the leaves.
摘要翻译：公开了一种具有高耐磨性的轴封，能够降低气体从高压侧向低压侧的泄漏。在轴封中，柔性叶片多层形成环形。轴封主要设置在燃气轮机等的旋转轴的周围。相关的涡轮机包括壳体，压缩机，旋转轴，附接到旋转轴的移动叶片和以固定叶片面对动叶片的方式附接到壳体的固定叶片，其中轴密封件设置在多个固定叶片和旋转轴，其中每个轴封的叶片接触旋转轴。在额定工作条件下，由于旋转轴的旋转产生的动态压力，叶片的顶端与旋转轴的表面稍微分开。当涡轮机不工作时，由于叶片的弹性恢复力，叶片的顶端再次与旋转轴接触。

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