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1. 发明授权

US07429164B2 Turbine moving blade 有权
标题翻译：涡轮动叶片
公开(公告)号：US07429164B2
公开(公告)日：2008-09-30
申请号：US10524834
申请日：2002-09-02
申请人： Yutaka Yamashita , Kiyoshi Namura , Eiji Saitou , Masakazu Takasumi , Masato Machida , Hideo Yoda , Kazuo Ikeuchi
发明人： Yutaka Yamashita , Kiyoshi Namura , Eiji Saitou , Masakazu Takasumi , Masato Machida , Hideo Yoda , Kazuo Ikeuchi
IPC分类号： F01D5/26
CPC分类号： F01D5/3046 , F01D5/225 , F05D2250/70 , F05D2260/36
摘要： A turbine moving blade has a blade portion extending from the basal portion to the tip of the moving blade. The blade root portion is formed at the basal portion of the blade portion and engaged with a corresponding disk groove of a turbine rotor on a one-by-one basis, and the integral cover is formed at the tip of the blade portion integrally with the blade portion. The integral cover includes at least a pair of pressure and suction sloped surfaces inclined relative to the direction of the rotational axis of a turbine so as to restrain the elastic restoring force of the moving blade torsionally deformed at the time of installation of the moving blade by bringing the integral covers of mutually adjacent blades into contact.
摘要翻译：涡轮机动叶片具有从基部向移动叶片的尖端延伸的叶片部分。叶片根部形成在叶片部分的基部并且一个接一个地与涡轮转子的相应的盘槽接合，并且整体盖与刀片部分的顶端一体地形成刀片部分。一体式的盖子包括至少一对相对于涡轮的旋转轴线的方向倾斜的压力和抽吸倾斜表面，以便限制在安装动叶片时扭转变形的动叶片的弹性恢复力使相邻叶片的整体盖接触。

2. 发明申请

US20060127221A1 Turbine moving blade 有权
标题翻译：涡轮动叶片
公开(公告)号：US20060127221A1
公开(公告)日：2006-06-15
申请号：US10524834
申请日：2002-09-02
申请人： Yutaka Yamashita , Kiyoshi Namura , Eiji Saitou , Masakazu Takasumi , Masato Machida , Hideo Yoda , Kazuo Ikeuchi
发明人： Yutaka Yamashita , Kiyoshi Namura , Eiji Saitou , Masakazu Takasumi , Masato Machida , Hideo Yoda , Kazuo Ikeuchi
IPC分类号： F01D5/30
CPC分类号： F01D5/3046 , F01D5/225 , F05D2250/70 , F05D2260/36
摘要： A turbine moving blade has a blade portion extending from the basal portion to the tip of the moving blade. The blade root portion is formed at the basal portion of the blade portion and engaged with a corresponding disk groove of a turbine rotor on a one-by-one basis, and the integral cover is formed at the tip of the blade portion integrally with the blade portion. The integral cover includes at least a pair of pressure and suction sloped surfaces inclined relative to the direction of the rotational axis of a turbine so as to restrain the elastic restoring force of the moving blade torsionally deformed at the time of installation of the moving blade by bringing the integral covers of mutually adjacent blades into contact.
摘要翻译：涡轮机动叶片具有从基部向移动叶片的尖端延伸的叶片部分。叶片根部形成在叶片部分的基部并且一个接一个地与涡轮转子的相应的盘槽接合，并且整体盖与刀片部分的顶端一体地形成刀片部分。一体式的盖子包括至少一对相对于涡轮的旋转轴线的方向倾斜的压力和抽吸倾斜表面，以便限制在安装动叶片时扭转变形的动叶片的弹性恢复力使相邻叶片的整体盖接触。

3. 发明授权

US07182577B2 Turbine rotor blade and turbine 有权
标题翻译：涡轮转子叶片和涡轮
公开(公告)号：US07182577B2
公开(公告)日：2007-02-27
申请号：US11211519
申请日：2005-08-26
申请人： Yutaka Yamashita , Eiji Saitou , Kiyoshi Namura , Hideo Yoda
发明人： Yutaka Yamashita , Eiji Saitou , Kiyoshi Namura , Hideo Yoda
IPC分类号： F01D5/22
CPC分类号： F01D5/3007 , F01D5/225 , F01D5/326 , Y10T29/49321
摘要： A set of turbine rotor blades is arranged on a rotor disk. Each rotor disk has blade profile, root parts which is fitted axially in an axial disk groove formed circumferenctially in the rotor disk, and an integral cover formed at the outer edge of the blade profile part. A front end surface, faced in a direction the rotor disk rotates, of the integral cover is inclined to a direction in which the root part of the turbine rotor blade is fitted in the disk groove of the rotor disk. The sum of circumferential lengths of the integral covers is greater than a circle at which the integral covers are joined to the blade profile parts. Adjacent integral covers are brought into contact with each other by the blade profile parts that are twisted when root parts of the turbine rotor blades are fitted axially in the disk grooves.
摘要翻译：一组涡轮转子叶片设置在转子盘上。每个转子盘具有叶片轮廓，轴向安装在转子盘周向形成的轴向盘槽中的根部和形成在叶片轮廓部分的外边缘处的整体盖。一体式盖的朝向转子盘旋转的方向的前端面与涡轮转子叶片的根部嵌合在转子盘的盘槽中的方向倾斜。整体盖的圆周长度的总和大于整体盖与叶片轮廓部分相接合的圆。当涡轮转子叶片的根部部分轴向安装在盘槽中时，相邻的整体盖通过被扭转的叶片轮廓部件相互接触。

4. 发明申请

US20060177314A1 Turbine rotor blade and turbine 有权
标题翻译：涡轮转子叶片和涡轮
公开(公告)号：US20060177314A1
公开(公告)日：2006-08-10
申请号：US11211519
申请日：2005-08-26
申请人： Yutaka Yamashita , Eiji Saitou , Kiyoshi Namura , Hideo Yoda
发明人： Yutaka Yamashita , Eiji Saitou , Kiyoshi Namura , Hideo Yoda
IPC分类号： F01D5/30
CPC分类号： F01D5/3007 , F01D5/225 , F01D5/326 , Y10T29/49321
摘要： A set of turbine rotor blades is arranged on a rotor disk. Each rotor disk has blade profile, root parts which is fitted axially in an axial disk groove formed circumferenctially in the rotor disk, and an integral cover formed at the outer edge of the blade profile part. A front end surface, faced in a direction the rotor disk rotates, of the integral cover is inclined to a direction in which the root part of the turbine rotor blade is fitted in the disk groove of the rotor disk. The sum of circumferential lengths of the integral covers is greater than a circle at which the integral covers are joined to the blade profile parts. Adjacent integral covers are brought into contact with each other by the blade profile parts that are twisted when root parts of the turbine rotor blades are fitted axially in the disk grooves.
摘要翻译：一组涡轮转子叶片设置在转子盘上。每个转子盘具有叶片轮廓，轴向安装在转子盘周向形成的轴向盘槽中的根部和形成在叶片轮廓部分的外边缘处的整体盖。一体式盖的朝向转子盘旋转的方向的前端面与涡轮转子叶片的根部嵌合在转子盘的盘槽中的方向倾斜。整体盖的圆周长度的总和大于整体盖与叶片轮廓部分相接合的圆。当涡轮转子叶片的根部部分轴向安装在盘槽中时，相邻的整体盖通过被扭转的叶片轮廓部件相互接触。

5. 发明授权

US08632313B2 Turbine rotor blade 有权
标题翻译：涡轮转子叶片
公开(公告)号：US08632313B2
公开(公告)日：2014-01-21
申请号：US12821460
申请日：2010-06-23
申请人： Kunio Asai , Takeshi Kudo , Hideo Yoda , Katsumi Tanaka
发明人： Kunio Asai , Takeshi Kudo , Hideo Yoda , Katsumi Tanaka
IPC分类号： F01D5/14
CPC分类号： F01D5/286 , C21D1/10 , C21D6/002 , C21D6/02 , C21D7/06 , C21D9/0068 , C21D2211/008 , C21D2221/01 , C21D2221/02 , F05C2253/24 , F05D2230/41 , F05D2230/90 , F05D2260/95 , F05D2300/171 , F05D2300/506 , Y02P10/253
摘要： A turbine rotor blade which is enhanced in erosion resistance and reduced in stress corrosion cracking sensitivity is provided. When a blade tip end of the turbine rotor blade is hardened by heat treatment, hardness at an outer circumferential side in a radial direction is made higher than hardness at an inner circumferential side, and thereby, enhancement in erosion resistance and reduction in stress corrosion cracking sensitivity are made compatible with each other all over in a blade length direction.
摘要翻译：提供一种提高耐冲蚀性和降低应力腐蚀开裂灵敏度的涡轮转子叶片。当通过热处理使涡轮转子叶片的叶片前端硬化时，径向外周侧的硬度比内周侧的硬度高，从而提高耐冲击性和降低应力腐蚀开裂灵敏度在刀片长度方向上相互兼容。

6. 发明授权

US07819630B2 Steam turbine blade, steam turbine rotor, steam turbine with those blades and rotors, and power plant with the turbines 有权
标题翻译：蒸汽轮机叶片，蒸汽轮机转子，具有这些叶片和转子的蒸汽轮机，以及具有涡轮机的发电厂
公开(公告)号：US07819630B2
公开(公告)日：2010-10-26
申请号：US11356002
申请日：2006-02-17
申请人： Shuhei Nogami , Hideo Yoda
发明人： Shuhei Nogami , Hideo Yoda
IPC分类号： B64C11/04
CPC分类号： F01D5/3007 , F05D2250/314 , Y02T50/673
摘要： A steam turbine blade in which the turbine blade has a blade root of the axially-inserted fir tree type and a larger number of turbine blades can be attached in a restricted outer peripheral region of a turbine rotor by arranging the blade root to be oriented in a direction forming a predetermined angle α larger than 0° relative to the axial direction of the turbine rotor. The steam turbine blade can suppress peak stresses generated at the bottoms of notches formed in the blade root and a blade groove and also suppress fretting fatigue from being induced by contact between peak stress generating areas and areas opposed to the peak stress generating areas at the notch bottoms. The steam turbine blade includes an airfoil, and a blade root attached to a turbine rotor and having plural stages of hooks in the radial direction of the turbine rotor.
摘要翻译：一种蒸汽轮机叶片，其中涡轮机叶片具有轴向插入的杉木树型叶片根部，并且更多数量的涡轮机叶片可以通过将待定向的叶片根部布置在涡轮转子的受限的外周区域中相对于涡轮转子的轴向形成大于0°的预定角度α的方向。蒸汽轮机叶片可以抑制在叶片根部和叶片槽形成的凹口的底部产生的峰值应力，并且还抑制由峰值应力产生区域和与凹口处的峰值应力产生区域相对的区域之间的接触而引起的微动疲劳底部。蒸汽轮机叶片包括翼型件和附接到涡轮转子并且在涡轮机转子的径向方向上具有多级钩的叶片根部。

7. 发明申请

US20070071599A1 High-strength heat resisting cast steel, method of producing the steel, and applications of the steel 审中-公开
标题翻译：高强度耐热铸钢，钢的生产方法和钢的应用
公开(公告)号：US20070071599A1
公开(公告)日：2007-03-29
申请号：US11528439
申请日：2006-09-28
申请人： Masahiko Arai , Hirotsugu Kawanaka , Hideo Yoda
发明人： Masahiko Arai , Hirotsugu Kawanaka , Hideo Yoda
IPC分类号： F04D29/44
CPC分类号： C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/52
摘要： A high-strength heat resisting cast steel which has high creep rupture strength at temperatures of 620° C. or above, high toughness, and good weldability. A method of producing the steel, a steam turbine casing, a main steam valve casing, and a steam control valve casing, each casing being made of that steel, as well as a steam turbine power plant using those components are also provided. The high-strength heat resisting cast steel contains 0.06-0.16% by mass of C, 0.1-1% of Si, 0.1-1% of Mn, 8-12% of Cr, 0.1-1.0% of Ni, 0.7% or less of Mo, 1.9-3.0% of W, 0.05-0.3% of V, 0.01-0.15% of one or more of Nb, Ta and Zr in total, 0.1-2% of Co, 0.01-0.08% of N, and 0.0005-0.01% of B, the balance being Fe and unavoidable impurities.
摘要翻译：高温耐热铸钢，其温度为620℃以上，蠕变断裂强度高，韧性高，焊接性好。还提供了一种制造钢的方法，蒸汽轮机壳体，主蒸汽阀壳体和蒸汽控制阀壳体，每个壳体由该钢制成，以及使用这些部件的蒸汽轮机发电厂。高强度耐热铸钢含有0.06-0.16质量％的C，0.1-1％的Si，0.1-1％的Mn，8-12％的Cr，0.1-1.0％的Ni，0.7％以下的的Mo，1.9〜3.0％的V，0.05〜0.3％的V，0.01-0.15％的Nb，Ta和Zr中的一种或多种，Co：0.1〜2％，N：0.01-0.08％，N：0.0005 -0.01％的B，余量为Fe和不可避免的杂质。

8. 发明授权

US08747733B2 Precipitation hardenable martensitic stainless steel and steam turbine blade using the same 有权
标题翻译：沉淀硬化马氏体不锈钢和蒸汽轮机叶片使用相同
公开(公告)号：US08747733B2
公开(公告)日：2014-06-10
申请号：US13086416
申请日：2011-04-14
申请人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
发明人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
IPC分类号： C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , F01D5/14
CPC分类号： C22C38/06 , C21D6/004 , C21D6/02 , C21D9/0068 , C21D2211/008 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , F01D5/286 , F05D2260/95 , F05D2300/171
摘要： A precipitation hardenable martensitic stainless steel excellent in the stability of martensite, having the high strength, high toughness and high corrosion resistance is provided. The precipitation hardenable martensitic stainless steel contains at a mass rate, C: 0.05-0.10%, Cr: 12.0-13.0%, Ni: 6.0-7.0%, Mo: 1.0-2.0%, Si: 0.01-0.05%, Mn: 0.06-1.0%, Nb: 0.3-0.5%, V: 0.3-0.5%, Ti: 1.5-2.5%, Al: 1.0-2.3%, and the remainder consisting of Fe and an unavoidable impurity.
摘要翻译：提供了具有高强度，高韧性和高耐腐蚀性的马氏体稳定性优异的析出硬化性马氏体系不锈钢。沉淀硬化马氏体系不锈钢的质量比为C：0.05〜0.10％，Cr：12.0〜13.0％，Ni：6.0〜7.0％，Mo：1.0〜2.0％，Si：0.01-0.05％，Mn：0.06 -1.0％，Nb：0.3〜0.5％，V：0.3〜0.5％，Ti：1.5〜2.5％，Al：1.0〜2.3％，余量由Fe和不可避免的杂质构成。

9. 发明申请

US20060216145A1 Heat resisting steel, steam turbine rotor shaft using the steel, steam turbine, and steam turbine power plant 有权
公开(公告)号：US20060216145A1
公开(公告)日：2006-09-28
申请号：US11172929
申请日：2005-07-05
申请人： Masahiko Arai , Hirotsugu Kawanaka , Kennichi Murata , Hideo Yoda
发明人： Masahiko Arai , Hirotsugu Kawanaka , Kennichi Murata , Hideo Yoda
IPC分类号： F04D29/44
CPC分类号： F01D5/02 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , F01D5/28 , F05C2201/0466 , F05D2240/60 , F05D2300/131 , F05D2300/132 , F05D2300/161
摘要： The invention provides a heat resisting steel having superior high-temperature strength and notch rupture strength, a rotor shaft using the heat resisting steel, a steam turbine using the rotor shaft, and a power plant using the steam turbine. The heat resisting steel is made of a Cr—Mo—V low-alloy steel containing 0.15-0.40% by weight of C, not more than 0.5% of Si, 0.05-0.50% of Mn, 0.5-1.5% of Ni, 0.8-1.5% of Cr, 0.8-1.8% of Mo and 0.05-0.35% of V, and having a (Ni/Mn) ratio of 3.0-10.0.

10. 发明授权

US09873930B2 Precipitation hardening martensitic stainless steel and steam turbine component made thereof 有权
公开(公告)号：US09873930B2
公开(公告)日：2018-01-23
申请号：US13292126
申请日：2011-11-09
申请人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
发明人： Shinji Oikawa , Hideo Yoda , Masahiko Arai , Hiroyuki Doi
IPC分类号： C22C38/44 , C22C38/18 , C21D6/00 , C21D6/02 , C21D9/00 , C22C38/40 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/60
CPC分类号： C22C38/18 , C21D6/00 , C21D6/004 , C21D6/02 , C21D9/0068 , C21D2211/008 , C22C38/40 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/60
摘要： It is an objective of the present invention to provide a precipitation-hardening martensitic stainless steel having well-balanced properties of high mechanical strength, high toughness and good corrosion resistance properties. There is provided a precipitation-hardening martensitic stainless steel comprising: 0.10 mass % or less of C; 13.0 to 15.0 mass % of Cr; 7.0 to 10.0 mass % of Ni; 2.0 to 3.0 mass % of Mo; 0.5 to 2.5 mass % of Ti; 0.5 to 2.5 mass % of Al; 0.5 mass % or less of Si; 0.1 to 1.0 mass % of Mn; and the balance including Fe and incidental impurities, in which the mass % content of the Ti (represented by [Ti content]), the mass % content of the Al (represented by [Al content]) and the mass % content of the C (represented by [C content]) satisfy relationships of “0.5≦[Ti content]≦2.5” and “0.5≦[Al content]+2[C content]≦2.7”.

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