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1. 发明专利

JP2010007611A Turbo-machine 有权
标题翻译： TURBO-MACHINE
公开(公告)号：JP2010007611A
公开(公告)日：2010-01-14
申请号：JP2008169773
申请日：2008-06-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI KAZUYUKI , MAGARA YOHEI , YOSHIDA TOYOMI , TAKAGI YUKISHI , MURATA KENICHI , KUDO TAKESHI
IPC分类号： F01D11/02 , F16J15/447
CPC分类号： F04D29/102 , F01D11/001 , F01D11/02 , F01D11/08 , F05D2250/182 , F16J15/441 , F16J15/4472 , Y10T29/49297 , Y10T29/4932
摘要： PROBLEM TO BE SOLVED: To provide a turbo-machine including a labyrinth seal easy to fabricate and adapted to prevent unstable vibration of a rotor. SOLUTION: The turbo-machine includes a labyrinth seal 2 formed by dividing the seal into segments 7 in a circumferential direction and combining the segments 7 whose comb teeth 5 differ in height. The labyrinth seal 2 preferably includes two kinds of segments 7 whose comb teeth 5 differ in height for each kind of segment. Segments 7a of the greater height of the comb tooth 5 are arranged in a certain reference direction on a cross section right-angled to a rotational axis, and in a direction opposite to the reference direction. Segments 7b of the smaller height of the comb tooth 5 are arranged in a direction right-angled to the reference direction, and in a direction opposite to the direction right-angled to the reference direction. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种易于制造并适于防止转子不稳定振动的迷宫式密封件的涡轮机。解决方案：涡轮机包括迷宫式密封件2，其通过将密封件沿圆周方向分割成段7而形成，并组合其梳齿5的高度不同的段7。迷宫式密封件2优选地包括两种类型的节段7，其梳齿5对于每种节段的高度不同。梳齿5的较大高度的部分7a在与旋转轴成直角的横截面上并且沿与参考方向相反的方向沿特定的参考方向布置。梳齿5的较小高度的部分7b沿与参考方向成直角的方向并且沿与与参考方向成直角的方向相反的方向布置。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2009299528A Turbomachine 审中-公开
标题翻译：涡轮机
公开(公告)号：JP2009299528A
公开(公告)日：2009-12-24
申请号：JP2008153016
申请日：2008-06-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI KAZUYUKI , MAGARA YOHEI , YOSHIDA TOYOMI , TAKAGI YUKISHI
IPC分类号： F04D29/56 , F01D9/02 , F01D17/16 , F02C7/24 , F02C9/22 , F04D29/66
摘要： PROBLEM TO BE SOLVED: To prevent deterioration of fluid performance during a rated load operation of a turbomachine and to reduce vibration stress to moving blades caused by slip stream of stator blades during partial rotation speed operation. SOLUTION: The turbomachine is equipped with a rotor having a plurality of moving blades extended in the radial direction on its outer periphery, a casing rotatably holding the rotor thereinside and forming a flow passage for leading a fluid to the moving blades to the rotor, and a plurality of variable stator blades distributed in the circumferential direction in the flow passage formed in the casing and in which mounting angles can be changed during the partial rotation speed operation. The variable stator blades are uniformly distributed in the circumferential direction of the casing and the change amount of mounting angles during the partial rotation speed operation are non-uniform. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止在涡轮机的额定负载运行期间的流体性能的劣化，并且在部分转速操作期间减少由定子叶片的滑动流引起的对动叶片的振动应力。解决方案：涡轮机配备有转子，转子具有在其外周沿径向方向延伸的多个活动叶片，壳体可旋转地将转子保持在其内部并形成用于将流体引导到活动叶片的流动通道转子，以及在形成于壳体中的流路中在圆周方向上分布的多个可变定子叶片，并且在部分转速操作期间可以改变安装角度。可变定子叶片在壳体的圆周方向上均匀分布，并且部分转速操作期间的安装角度的变化量不均匀。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2014152696A Labyrinth seal device, and turbomachine using the same 审中-公开
标题翻译： LABYRINTH SEAL DEVICE，和TURBOMACHINE WITH THE SAME
公开(公告)号：JP2014152696A
公开(公告)日：2014-08-25
申请号：JP2013022802
申请日：2013-02-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO AKIRA , YAMAGUCHI KAZUYUKI , NISHIJIMA NORIYO , MURATA KENICHI , KUDO TAKESHI , MAGARA YOHEI , YOSHIDA TOYOMI
IPC分类号： F01D11/02 , F01D11/08
摘要： PROBLEM TO BE SOLVED: To provide a labyrinth seal device capable of effectively reducing a flow in a rotating direction at a labyrinth seal inlet to suppress unstable vibration of a rotating shaft, and reducing generation of vibration by contact with the rotating shaft and abrasion of a seal fin.SOLUTION: A labyrinth seal device 1 having a seal fin 11 disposed on an outer peripheral face of a rotating body and projecting to an outer peripheral side in the radial direction of the rotating body, and a seal ring 13 fixed to a stationary body enclosing the rotating body so as to face the seal fin, includes a projecting portion 14 formed on an inner peripheral face of the seal ring and projecting to an inner peripheral side in the radial direction of the seal ring, a plurality of flow straightening holes 15 formed in the radial direction and the circumferential direction of the projecting portion, penetrating through both axial side wall faces of the projecting portion, and reducing a speed component in the rotating direction of the rotating body, of a leakage flow passing through the holes, and the seal fin 11 disposed in opposition to an inner peripheral face of the projecting portion.
摘要翻译：要解决的问题：提供一种迷宫式密封装置，能够在迷宫式密封入口处有效地减少旋转方向的流动，以抑制旋转轴的不稳定的振动，并且通过与旋转轴的接触减少振动的产生和磨损密封翅片。解决方案：一种迷宫式密封装置1，其具有设置在旋转体的外周面上的突出于旋转体的径向外周侧的密封翅片11，以及固定在静止状态的密封环13 包围旋转体以与密封翅片相对的主体包括形成在密封环的内周面上的突出部分14，并且在密封环的径向方向上突出到内周侧，多个流动矫直孔 15形成在突出部的径向方向和周向上，贯通突出部的两个轴向侧壁面，并且降低速度旋转体的旋转方向的分量，穿过孔的泄漏流以及与突出部的内周面相对配置的密封翅片11。

4. 发明专利

JP2013174192A Turbo machine 有权
标题翻译：涡轮机
公开(公告)号：JP2013174192A
公开(公告)日：2013-09-05
申请号：JP2012039525
申请日：2012-02-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI KAZUYUKI , MAGARA YOHEI , YOSHIDA TOYOMI , MURATA KENICHI , KUDO TAKESHI , ENDO AKIRA
IPC分类号： F01D11/02 , F01D5/20 , F01D25/00 , F02C7/28 , F04D29/10 , F16J15/447
CPC分类号： F01D11/02 , F05D2240/126
摘要： PROBLEM TO BE SOLVED: To provide a turbo machine that prevents unstable oscillation of a rotor without increasing a rotor axis length nor causing degradation of sealing performance of a labyrinth seal.SOLUTION: A turbo machine includes: a rotor 3; a stator 5 provided around the rotor 3; and a labyrinth seal 6 with comb-teeth structure provided in a clearance part 11 between the rotor 3 and the stator 5. The labyrinth seal 6 has a plurality of comb teeth 7 that are axially provided along the rotor 3 and protruded from the rotor 3 toward the stator 5, and a turn prevention fin 12 that is secured to the stator 5 at a position facing the comb teeth 7 of a labyrinth seal inlet part 9 of the labyrinth seal.
摘要翻译：要解决的问题：提供一种涡轮机，其防止转子的不稳定振动而不增加转子轴线长度，也不会导致迷宫式密封件的密封性能的劣化。解决方案：涡轮机包括：转子3; 设置在转子3周围的定子5; 以及设置在转子3和定子5之间的间隙部分11中的具有梳齿结构的迷宫式密封件6.迷宫式密封件6具有多个梳齿7，其沿着转子3轴向地设置并且从转子3突出以及在与迷宫式密封件的迷宫式密封件入口部分9的梳齿7相对的位置处固定到定子5的防倾倒片12。

5. 发明专利

JP2012149694A Tilting pad journal bearing device and turbo machine using the same 有权
标题翻译：倾斜垫片轴承装置和涡轮机使用相同
公开(公告)号：JP2012149694A
公开(公告)日：2012-08-09
申请号：JP2011008384
申请日：2011-01-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI KAZUYUKI , MAGARA YOHEI , YOSHIDA TOYOMI , MURATA KENICHI , ENDO AKIRA , HENMI MAKOTO
IPC分类号： F16C17/03 , F01D25/16
摘要： PROBLEM TO BE SOLVED: To provide a tilting pad journal bearing device which suppresses unstable vibration derived from working fluid force of a turbo machine by increasing the anisotropy of bearing spring constant.SOLUTION: The tilting pad journal bearing device 1 is provided with a pad 3 which is disposed around a rotary shaft 2 and supports the rotary shaft 2, and a bearing housing 4 which houses the pad 3. The tilting pad journal bearing device 1 includes: a load directional pad 3a located in load direction of the rotary shaft 2; pads 3b, 3c provided adjacent thereto in a circumferential direction of the load directional pad 3a. A bump 6 is formed on a pressure receiving surface 5 of the pads 3b, 3c provided adjacent thereto in a circumferential direction of the load directional pad 3a, to enlarge the anisotropy of the bearing spring constant and to suppress unstable vibration derived from the working fluid force of the turbo machine by making the area of the pressure receiving surface 5 supporting the rotary shaft 2 of the load directional pad 3a larger than the area of the pressure receiving surface 5 of the pads 3b, 3c supported in a circumferential direction of the load directional pad 3a.
摘要翻译：要解决的问题：提供一种倾斜垫片轴颈轴承装置，其通过增加轴承弹簧常数的各向异性来抑制来自涡轮机的工作流体力的不稳定振动。解决方案：倾斜轴颈轴承装置1设置有围绕旋转轴2设置并支撑旋转轴2的垫3和容纳垫3的轴承壳体4.倾斜垫轴颈轴承装置 1包括：位于旋转轴2的负载方向上的负载定向垫3a; 在负载方向盘3a的圆周方向上与其相邻设置的垫3b，3c。在负载方向盘3a的圆周方向上与其相邻设置的焊盘3b，3c的受压面5上形成凸起6，使轴承弹簧的各向异性增大，抑制来自工作流体的不稳定振动涡轮机的力通过使承载方向垫3a的旋转轴2的受压面5的面积大于沿负载的圆周方向被支撑的焊盘3b，3c的受压面5的面积方向垫3a。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2011047277A Axial flow turbo-machine 审中-公开
标题翻译：轴流涡轮机
公开(公告)号：JP2011047277A
公开(公告)日：2011-03-10
申请号：JP2009193778
申请日：2009-08-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YAMAGUCHI KAZUYUKI , MAGARA YOHEI , YOSHIDA TOYOMI , TAKAGI YUKISHI , KUROKI HIDETOSHI
IPC分类号： F04D29/38 , F04D19/02 , F04D29/52 , F04D29/66
摘要： PROBLEM TO BE SOLVED: To provide an axial flow turbo-machine capable of reducing vibrational stress by an alternating current of an upstream side blade even to a stripe mode of vibrating the front edge and the rear edge in the same direction.
SOLUTION: For attaining the purpose, in this axial flow turbo-machine for constituting a step by an upstream side blade 5 and a downstream side blade 4, an interval of the alternating current of the upstream side blade 5 viewed in the blade width direction of the blade tip 8 of the downstream side blade 4, is constituted in a range of 0.45-0.55 time to a blade width L of the blade tip 8 of the downstream side blade 4.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过上游侧叶片的交流电流减少振动应力的轴流涡轮机，即使是在相同方向上使前边缘和后边缘振动的条纹模式。解决方案：为了达到这个目的，在用于由上游侧叶片5和下游侧叶片4构成台阶的该轴流涡轮机中，在叶片中观察到上游侧叶片5的交流电流的间隔下游侧叶片4的叶片尖端8的宽度方向构成为下游侧叶片4的叶片顶端8的叶片宽度L的0.45〜0.55倍的范围。版权所有（C）2011 ，JPO＆INPIT

7. 发明专利

JP2014020477A Pedestal for rotary machine 审中-公开
标题翻译：旋转机床
公开(公告)号：JP2014020477A
公开(公告)日：2014-02-03
申请号：JP2012160474
申请日：2012-07-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MAGARA YOHEI , YAMAGUCHI KAZUYUKI , ENDO AKIRA , MATSUNAGA HIROYUKI , YOSHIDA TOYOMI
IPC分类号： F16F15/02 , F04B39/00
摘要： PROBLEM TO BE SOLVED: To provide a pedestal for a rotary machine capable of suppressing vibration of the pedestal during the operation of the rotary machine.SOLUTION: A pedestal 1 for a rotary machine includes a support structure 7 installed on a base 8, and a dynamic vibration absorber 10 which is arranged in a gap s1 formed with the base 8 and has members with variable mass distributions 12a, 12b supported in parallel by at least two elastic bodies 11a, and is supported on the base 8 by the support structure 7 and provided with the rotary machine 6. Preferably, a recessed part p1 is formed in a side face part 1s of the pedestal 1 for the rotary machine, and the elastic bodies 11a supporting the dynamic vibration absorber 10 are seated in the recessed part p1. Preferably, the members having the variable mass distributions have weights 12a, 12b and beams 12c, 12s1, 12s2 supporting the weights 12a, 12b, the positions of the weights 12a, 12b being changeable through adjustment.
摘要翻译：要解决的问题：提供一种能够在旋转机械的操作期间抑制基座的振动的旋转机械的基座。解决方案：用于旋转机器的基座1包括安装在基座8上的支撑结构7和动力吸振器10布置在与基座8形成的间隙s1中，并且具有由至少两个弹性体11a平行支撑的可变质量分布12a，12b的构件，并且由支撑结构7支撑在基座8上，优选地，凹部P1形成在用于旋转机器的基座1的侧面部分1s中，并且支撑动态吸振器10的弹性体11a位于凹部p1中。优选地，具有可变质量分布的构件具有支撑重物12a，12b的重物12a，12b和梁12c，12s1,12s2，重物12a，12b的位置可通过调整而改变。

8. 发明专利

JP2013177866A Turbomachine 审中-公开
标题翻译：涡轮机
公开(公告)号：JP2013177866A
公开(公告)日：2013-09-09
申请号：JP2012042693
申请日：2012-02-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO AKIRA , YAMAGUCHI KAZUYUKI , MAGARA YOHEI , YOSHIDA TOYOMI , MURATA KENICHI , KUDO TAKESHI
IPC分类号： F01D11/02 , F01D25/00 , F02C7/28 , F04D29/10 , F16J15/447
CPC分类号： F01D25/00 , F01D11/001 , F01D11/02 , F01D11/122 , F01D25/04 , F05D2200/33 , F05D2220/31
摘要： PROBLEM TO BE SOLVED: To provide a turbomachine having a labyrinth seal device capable of preventing the unstable vibration of a rotor by suppressing an asymmetric pressure distribution inside a seal.SOLUTION: A turbomachine includes a rotor 2, a stationary body disposed around the rotor 2, and a labyrinth seal 11 installed in a gap portion between the rotor 2 and the stationary body. The labyrinth seal 11 includes a first seal fin 12 projecting from either of the rotor 2 and the stationary body installed further on the high pressure side than the axial center of the rotor toward the portion of the other which is opposed thereto and second seal fins 14 which are provided to the low pressure side of the first seal fin 12, form a chamber 13 in association with the first seal fin 12, and project from either of the rotor 2 and the stationary body toward the portion of the other which is opposed thereto. The gap between the first seal fin 12 and the opposed portion is made smaller than the gap between the second seal fins 14 and the opposed portion.
摘要翻译：要解决的问题：提供一种具有迷宫式密封装置的涡轮机械，其能够通过抑制密封件内部的不对称压力分布来防止转子的不稳定的振动。解决方案：涡轮机包括转子2，设置在转子2周围的静止体以及安装在转子2和静止体之间的间隙部分中的迷宫式密封件11。迷宫式密封件11包括从转子2和静止体中的任一个突出的第一密封翅片12，该固定体进一步安装在高于转子的轴向中心的高压侧朝向与其相对的另一侧的部分和第二密封翅片14 它们设置在第一密封翅片12的低压侧，形成与第一密封翅片12相关联的腔室13，并且从转子2和固定体中的任一个向与其相对的另一个部分突出。。使得第一密封翅片12和相对部分之间的间隙小于第二密封翅片14和相对部分之间的间隙。

9. 发明专利

JP2012102831A Labyrinth seal device and turbo machine using the same 审中-公开
标题翻译： LABYRINTH SEAL DEVICE和TURBO MACHINE WITH THE SAME
公开(公告)号：JP2012102831A
公开(公告)日：2012-05-31
申请号：JP2010253376
申请日：2010-11-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO AKIRA , YAMAGUCHI KAZUYUKI , MAGARA YOHEI , YOSHIDA TOYOMI , TAKAGI YUKISHI , MURATA KENICHI , KUDO TAKESHI
IPC分类号： F16J15/447 , F01D11/02 , F01D25/00 , F02C7/28
CPC分类号： F01D11/02 , F05D2260/96
摘要： PROBLEM TO BE SOLVED: To provide a labyrinth seal device that can suppress occurrence of an asymmetrical pressure distribution in the seal, suppress unstable vibration of a rotating shaft and ensure sealing performance.SOLUTION: The labyrinth seal device includes a seal ring 13 and a plurality of seal fins 11. Ring-like chambers 12 are formed on the outer circumference of a rotating shaft 2 with the seal ring 13 and the seal fins 11. The ring-like chambers 12 suppress a leakage flow LS flowing along the outer circumference of the rotating shaft 2. Gap portion 14 are provided on the outer circumferential side of the chambers 12 in the seal ring 13 so as to extend in the circumferential direction of the rotating shaft 2 and communicate with the chambers 12 at circumferential interval to temporarily relieve a leakage flow from inside the chambers 12 in the circumferential direction.
摘要翻译：要解决的问题：为了提供可以抑制密封件中不对称压力分布发生的迷宫式密封装置，抑制旋转轴的不稳定振动并确保密封性能。解决方案：迷宫式密封装置包括密封环13和多个密封翅片11.环形室12通过密封环13和密封翅片11形成在旋转轴2的外圆周上。环形室12抑制沿着旋转轴2的外周流动的泄漏流LS.间隙部分14设置在密封环13中的室12的外周侧上，以沿着圆周方向旋转轴2并且以周向间隔与腔室12连通，以暂时缓解在室12内周向的泄漏流。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2011247307A Labyrinth seal device 审中-公开
标题翻译： LABYRINTH SEAL DEVICE
公开(公告)号：JP2011247307A
公开(公告)日：2011-12-08
申请号：JP2010118885
申请日：2010-05-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO AKIRA , YAMAGUCHI KAZUYUKI , MAGARA YOHEI , YOSHIDA TOYOMI , TAKAGI YUKISHI , MURATA KENICHI , KUDO TAKESHI
IPC分类号： F16J15/447 , F01D11/02
摘要： PROBLEM TO BE SOLVED: To provide a labyrinth seal device which can control a flow in a rotation direction, prevent an unstable vibration of a rotation shaft, and secure the structure reliability of sealing and sealing performance with a simple structure.SOLUTION: In the labyrinth seal device 1 having a searing 17 and a plurality of seal fins 6, and producing a pressure loss in leakage flow flowing along the circumference of the rotation shaft 2 to control the leakage flow by a ring-shaped chamber 12 formed of the searing 17 and the seal fins 6 on the circumference of the rotation shaft 2, slits 9 communicating the upstream side to the downstream side in the leakage flow direction of the seal fins 6 are mounted on the respective seal fins 6 from the seal fin 6a in a first stage on the upstream side to at least a second stage in the leakage flow direction with the respective slits 9a, 9b and 9c shifted in a circumferential direction and disposed such that the leakage flow which passes through the slits 9 to flow through from the slit 9a on the uppermost stream side to the slits 9b and 9c on the downstream side in the leakage flow direction opposes the leakage flow flowing in the rotation direction of the rotation shaft 2.
摘要翻译：要解决的问题：为了提供可以控制旋转方向的流动的迷宫式密封装置，防止旋转轴的不稳定的振动，并且以简单的结构确保结构的密封和密封性能的可靠性。解决方案：在具有灼热17和多个密封翅片6的迷宫式密封装置1中，并且产生沿着旋转轴2的圆周流动的泄漏流的压力损失，以通过环形在旋转轴2的圆周上由密封件17形成的腔室12和密封翅片6，在密封翅片6的泄漏流动方向上连通上游侧和下游侧的狭缝9安装在各个密封翅片6上密封翅片6a在上游侧的第一阶段中至少在泄漏流动方向上的第二阶段，同时相应的狭缝9a，9b和9c沿圆周方向移动，并且设置成使得穿过狭缝9的泄漏流从最上游侧的狭缝9a流向在泄漏流动方向的下游侧的狭缝9b，9c与沿着旋转轴2的旋转方向流动的泄漏流相对。
COPYRIGH T：（C）2012，JPO＆INPIT

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