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11. 发明专利

JP2011064233A Valve stem supporting structure 审中-公开
标题翻译：阀门支撑结构
公开(公告)号：JP2011064233A
公开(公告)日：2011-03-31
申请号：JP2009213929
申请日：2009-09-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEKIHARA TAKASHI , ANZAI HIDEYA , TAKAHASHI YUICHI
IPC分类号： F16K1/32
摘要： PROBLEM TO BE SOLVED: To provide a steam valve supporting structure having excellent wear resistance and high reliability, preventing leakage and easy in repair.
SOLUTION: A valve stem supporting structure includes a valve stem having a valve element for sealing fluid at the end thereof and a cylindrical bush which is fixed to the inner face of casing having a valve seat for contacting with the valve element and contacts the valve stem at the inner face. The welded shape of Stellite on a bush inner face is formed in a bar shape in the longitudinal direction. Material of satisfactory machinability is applied to portions of the Stellite inner face where Stellite is not applied.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的耐磨性和高可靠性的蒸汽阀支撑结构，防止泄漏并且易于修理。解决方案：阀杆支撑结构包括阀杆，阀杆具有用于在其端部处密封流体的阀元件和固定到壳体内表面的圆柱形衬套，该套筒具有用于与阀元件和触点接触的阀座阀杆在内表面。司太立在焊接内表面上的焊接形状沿长度方向形成为棒状。可靠的切削性的材料适用于未施加司太立的斯特雷特内面的部分。版权所有（C）2011，JPO＆INPIT

12. 发明专利

JP2011021543A Steam turbine having function of washing rotor blade mounting part 有权
标题翻译：具有洗衣机叶片安装部分功能的蒸汽涡轮机
公开(公告)号：JP2011021543A
公开(公告)日：2011-02-03
申请号：JP2009167176
申请日：2009-07-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHISHIME YOSHIKO , KUDO TAKESHI , HIRANO ATSUYA , SEKIHARA TAKASHI
IPC分类号： F01D25/00 , F01D5/02 , F01D5/30
摘要： PROBLEM TO BE SOLVED: To surely wash gaps in a rotor blade mounting part of a steam turbine to prevent generation of pitting corrosion known to become a starting point for stress corrosion cracking and corrosion fatigue.
SOLUTION: The steam turbine has, in at least one stage among low pressure stages of the steam turbine including the rotor blade mounting part of an axial entry type, a structure provided with a passage for letting fluid flow in at least one stator blade in a stator blade cascade arrayed circumferentially, wherein the fluid is supplied through the passage to blade groove bottom gaps between the root ends of rotor blades and blade groove bottoms on a rotor side in the rotor blade mounting part facing the stator blade.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：确保清洗蒸汽轮机的转子叶片安装部分中的间隙，以防止已知成为应力腐蚀开裂和腐蚀疲劳起点的点蚀。解决方案：蒸汽轮机在包括轴向进入型的转子叶片安装部分的蒸汽轮机的低压级中至少有一个阶段中，具有通道的结构，该通道使流体在至少一个定子定子叶片级联的叶片沿周向排列，其中流体通过通道供应到转子叶片的根端和转子侧的叶片槽底部之间的叶片槽底部间隙，转子叶片安装部分面向定子叶片。版权所有（C）2011，JPO＆INPIT

13. 发明专利

JP2010084935A Rotation body bolt fastening structure and rotating machine 有权
标题翻译：旋转体螺栓紧固结构和旋转机
公开(公告)号：JP2010084935A
公开(公告)日：2010-04-15
申请号：JP2008257943
申请日：2008-10-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEKIHARA TAKASHI , HAYASAKA YASUSHI
IPC分类号： F16B31/06 , F01D5/06 , F01D25/00
摘要： PROBLEM TO BE SOLVED: To suppress shortening in the fatigue life of a bolt by suppressing the occurrence of opening on the rotor axis side of a nut bearing surface caused by centrifugal force applied to a nut.
SOLUTION: This rotation body bolt fastening structure constitutes a rotor fastening element by fastening a plurality of stacked rotor wheels 4 circumferentially with a plurality of bolts 5 and nuts. The bolts 5 are arranged in the circumferential direction of the rotors by making the cross-sectional shape of the shanks of the bolts 5 nonaxisymmetric so that the neutral axes of flexural deformation of the shanks of the bolts 5 are eccentrically located on the axis side of the rotor fastening element. The rotation body bolt fastening structure is also constituted to reduce the weight of a nut structure.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过抑制由施加到螺母的离心力引起的螺母承载面的转子轴线侧的开口的发生，来抑制螺栓的疲劳寿命缩短。解决方案：该旋转体螺栓紧固结构通过用多个螺栓5和螺母将多个堆叠的转子轮4周向地紧固构成转子紧固元件。螺栓5通过使螺栓5的轴的横截面形状非轴对称地布置在转子的圆周方向上，使得螺栓5的柄的弯曲变形的中性轴偏心地位于转子紧固元件。旋转体螺栓紧固结构也构成为减小螺母结构的重量。版权所有（C）2010，JPO＆INPIT

14. 发明专利

JP2007105735A Friction welding method 审中-公开
标题翻译：摩擦焊接方法
公开(公告)号：JP2007105735A
公开(公告)日：2007-04-26
申请号：JP2005295825
申请日：2005-10-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAMAOKI HIDEKI , YAGI MANABU , SEKIHARA TAKASHI , OKAYAMA AKIRA , FUJITA KOICHI
IPC分类号： B23K20/12 , B23K20/22 , C22C19/05 , C22F1/00 , C22F1/10
摘要： PROBLEM TO BE SOLVED: To provide a friction welding method capable of reducing the variation of burn-off length even when material strength is varied. SOLUTION: This friction welding method has a standard process as follows: (1) a casting and a forged material are fixed on the same axial center each other; (2) both are rotated at the relative circumferential speed of 400-3,500 mm/s of the outside diameter in the joining part; (3) next, both are pressurized until a prescribed amount of a softened layer is obtained at a primary pressure (P1) of 50-250 MPa; (4) furthermore, the pressure is raised to a secondary pressure (P2) of 250-800 MPa which is higher than the primary temperature; (5) action for stopping the rotation is started within 0-1.0 s after commanding pressure rising; and (6) the pressure is held at the maximum pressure for ≥5.0 s after commanding the pressure rising. In the friction pressure welding method, between above (1) and (2), a process (1'), in the state where the rotation is stopped, the casting and the forged material are pressurized in the range of the pressure (P0) of 300-1,200 MPa and the pressure is once unloaded is included and the casting consists of a precipitation strengthening alloy and the forged material consists of a precipitation strengthening alloy. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供即使当材料强度变化时也能够减少燃烧长度的变化的摩擦焊接方法。解决方案：该摩擦焊接方法具有以下标准工艺：（1）铸造和锻造材料固定在相同的轴心上; （2）在接合部中以相对圆周速度为400〜3500mm / s的外径旋转; （3）接着，在50-250MPa的一次压力（P1）下，两者都被加压直至得到规定量的软化层; （4）此外，压力升高到高于一次温度的250-800MPa的二次压力（P2）; （5）停止转动动作在指令压力上升0-1.0秒后开始运行; 和（6）指示压力上升后，压力保持在最大压力≥5.0秒。在摩擦压力焊接方法中，在上述（1）和（2）之间，在转动停止的状态下，铸造和锻造材料在压力（P0）的范围内加压的工序（1'）， 300-1200MPa，压力一次卸载，铸造由析出强化合金组成，锻造材料由析出强化合金组成。版权所有（C）2007，JPO＆INPIT

15. 发明专利

JP2004340044A Repairing method for gas turbine moving blade, and gas turbine moving blade structure 有权
公开(公告)号：JP2004340044A
公开(公告)日：2004-12-02
申请号：JP2003138180
申请日：2003-05-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEKIHARA TAKASHI , ICHIKAWA KUNIHIRO
IPC分类号： F01D5/22 , F01D25/00 , F02C7/00
CPC分类号： B23P6/002
摘要： PROBLEM TO BE SOLVED: To provide a repair method for a gas turbine moving blade facilitating repair of a damaged part such as a crack, in the gas turbine moving blade.
SOLUTION: The gas turbine moving blade is constituted of a blade part 4 and a fir three part 5 fitted into an embedment groove worked in an outer periphery of a turbine wheel. The gas turbine moving blade has a shroud cover 7 with an uneven part 8 formed at an outer periphery thereof, the uneven parts 8 are mutually fitted to neighboring moving blades, so that the gas turbine moving blades are engaged. Since a part near the crack 9 generated in the recesses part 6 of the uneven part 8 of the shroud cover 7 is removed in a circular arc shape (circular shape) from above, along a height direction of the gas turbine moving blade, the repair is facilitated.
COPYRIGHT: (C)2005,JPO&NCIPI

16. 发明专利

JP2004232532A Micro gas turbine 审中-公开
公开(公告)号：JP2004232532A
公开(公告)日：2004-08-19
申请号：JP2003021296
申请日：2003-01-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEKIHARA TAKASHI
IPC分类号： F01D5/02 , F01D25/00 , F04D29/04 , F04D29/053 , F04D29/28 , F04D29/62
摘要： PROBLEM TO BE SOLVED: To improve assembly and disassembly performance of a micro gas turbine.
SOLUTION: In the micro gas turbine 1, a rotor shaft 6, a compressor impeller 7, and a rotor of a motor 8 are engaged with a rotating shaft (a tie bolt) 9 of a turbine impeller 5 in a laminated state, and are tightened by a nut 14 on a screw part formed on an end portion of the tie bolt. The compressor impeller is loosely fitted into the rotating shaft and is fitted in the rotor shaft.
COPYRIGHT: (C)2004,JPO&NCIPI

17. 发明专利

JP2003271233A Power supply facility and management method therefor 审中-公开
标题翻译：电力设施及其管理方法
公开(公告)号：JP2003271233A
公开(公告)日：2003-09-26
申请号：JP2002075387
申请日：2002-03-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： GOTO JINICHIRO , SEKIHARA TAKASHI , FURUKAWA MASAO
IPC分类号： G05B23/02
摘要： PROBLEM TO BE SOLVED: To solve problems in managing a distributed power supply facility reliably. SOLUTION: A distributed power supply management apparatus 4 attached to a distributed power supply 1 which can be detached and exchanged, a diagnosis apparatus 5 attached to inside the management apparatus 4 which can be detached and exchanged, and a recording medium 6, are provided. When taking out a recorded content in the diagnosis apparatus and the recording medium, a replacement of the management apparatus 4 is attached to the distributed power supply to continue to operate the distributed power source, and recorded information is taken out from the detached management apparatus 4 to help management. COPYRIGHT: (C)2003,JPO
摘要翻译：解决问题：可靠地解决管理分布式供电设备的问题。解决方案：安装在能分离和更换的分布式电源1上的分布式电源管理装置4，安装在管理装置4的内部，可拆卸和交换的诊断装置5，以及记录介质6，被提供。当在诊断装置和记录介质中取出记录的内容时，管理装置4的更换被附接到分布式电源以继续操作分布式电源，并且从分离的管理装置4中取出记录的信息帮助管理。版权所有（C）2003，JPO

18. 发明专利

JP2002089842A GAS TURBINE AND METHOD FOR REPAIRING IT 失效
公开(公告)号：JP2002089842A
公开(公告)日：2002-03-27
申请号：JP2000285230
申请日：2000-09-14
申请人： HITACHI LTD
发明人： SEKIHARA TAKASHI , SAKURAI SHIGEO
IPC分类号： B23P6/04 , B23P6/00 , F01D9/02 , F02C7/00 , F23R3/00 , F23R3/06 , F23R3/42
摘要： PROBLEM TO BE SOLVED: To save energy, improve a strength, prolong a life and decrease the number of repairing and inspecting works, while the transition piece of a combustion device can be easily repaired and replaced by another one. SOLUTION: A gas turbine comprises a compressor 1 for compressing air as working fluid, the combustion device 2 for mixing the compressed air with fuel and burning the mixture to produce combustion gas and a turbine 3 for generating rotating power upon expansion of the combustion gas. The gas turbine further includes a cylindrical liner 5, the transition piece 6 in which the working fluid moves to the turbine 3 from the liner 5, an outlet part 13 of the transition piece 6 having an area parallel to the direction of a rotation axis of the turbine 3, cooling holes 14 whose arrangement intervals are partly widened in the parallel area and a frame part 11 for ensuring a rigidity in the vicinity of the outlet of the outlet part 13.

19. 发明专利

JP2001349544A GAS TURBINE EQUIPMENT AND CASING STRUCTURE OF TRANSITION PIECE OF ITS COMBUSTOR 失效
公开(公告)号：JP2001349544A
公开(公告)日：2001-12-21
申请号：JP2000174191
申请日：2000-06-06
申请人： HITACHI LTD
发明人： SEKIHARA TAKASHI , SAITO TAKEO
IPC分类号： F23R3/42 , F02C7/28
摘要： PROBLEM TO BE SOLVED: To reliably install a seal member at a transition piece outlet part as rigidity of the transition piece outlet part of the combustor of gas turbine equipment is properly ensured. SOLUTION: A casing 8 of the transition piece 6 to effect intercommunication between the combustor of the gas turbine equipment and the turbine side is formed in the shape of a parallelogram in section in a way that a surface vertically to the direction of a gas turbine rotary shaft is situated in parallel to the compressor side and the turbine side and a surface paralleling the inner surface of the transition piece is formed. Wear resistant coating 23 is applied on the surface, described above, of the casing 8. The casing 8 is mounted with the curved part of a seal member 21 fitted in the casing 8.

20. 发明专利

JP2001173955A COMBUSTOR SUPPORTING STRUCTURE 失效
公开(公告)号：JP2001173955A
公开(公告)日：2001-06-29
申请号：JP35548799
申请日：1999-12-15
申请人： HITACHI LTD
发明人： SEKIHARA TAKASHI , MACHIDA TAKASHI , ISHIBASHI YOJI , SAITO TAKEO
IPC分类号： F23R3/42 , F02C7/20 , F23R3/44
摘要： PROBLEM TO BE SOLVED: To provide a rigid supporting structure which can support a combustor for gas turbine without causing any local high-stress area in a transition piece. SOLUTION: In the combustor supporting structure, a rear support 18 is provided by utilizing a frame section 9 which is constituted in a rigid structure due to its function of securing rigidity and provided at the outlet section of a transition piece 7 in such a way that one end of the support 18 is attached to the frame section 9 and the other end of the support 18 has a hinge structure 19 and is supported by a casing through the hinge 19. Therefore, the support 18 can transmit the pressure load acting on the transition piece 7 to the casing without generating any excessively stress.

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