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1. 发明专利

JP2008039126A Monitoring system for valve device 有权
标题翻译：阀装置监控系统
公开(公告)号：JP2008039126A
公开(公告)日：2008-02-21
申请号：JP2006216367
申请日：2006-08-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OTA HIROYUKI , SHIMAZU HIROMI , TANNO YOHEI , KIYOTOKI YOSHIHISA , ONODERA KENJI , ARAKI KENJI
IPC分类号： F16K37/00 , F16K51/00 , G01L5/00 , H01L29/84
CPC分类号： G01B7/18 , F16K37/0083
摘要： PROBLEM TO BE SOLVED: To provide a monitoring system for valve device which accurately remotely monitors a dynamic load acting on a valve device.
SOLUTION: A semiconductor substrate having a bridge circuit including a plurality of impurity diffused resistors is provided on any one of a valve rod, a valve yoke, a torque spring, and a shaft of the valve device, and a thrust force and a torque are determined from a measurement value of the bridge circuit and provided for monitoring of the valve device.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于阀装置的监测系统，其可以精确地远程监测作用在阀装置上的动态载荷。解决方案：具有多个杂质扩散电阻器的桥接电路的半导体衬底设置在阀杆，阀轭，扭矩弹簧和阀装置的轴中的任一个上，推力和根据桥式电路的测量值确定扭矩并提供用于阀装置的监视。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2005194602A Valve, mechanical seal, and method for manufacturing them 审中-公开
标题翻译：阀门，机械密封件及其制造方法
公开(公告)号：JP2005194602A
公开(公告)日：2005-07-21
申请号：JP2004003940
申请日：2004-01-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIYOTOKI YOSHIHISA , CHIKAZAKI MITSUO , KUMAGAI MAKOTO , TACHIHARA SHIGERU
IPC分类号： F16K25/00 , B22F3/15 , B22F3/20 , C22C1/05 , C22C1/10 , C22C19/07 , F16J15/34 , F16K1/00 , F16K1/36 , F16K1/42
摘要： PROBLEM TO BE SOLVED: To improve the corrosion resistance and erosion resistance of a composite material, in a valve or a mechanical seal having the composite material of a cobalt-based alloy and a ceramic.
SOLUTION: The valve or the mechanical seal, in the valve having a valve element 1 and a valve box 2, or in the mechanical seal having a structure of pushing an end face of an idler ring capable of moving in an axial direction while rotating, to the end face of a seat ring which does not rotate, to closely contact both end faces and seal the mechanical seal, is made by diffusion-bonding a member that is formed of a composite material of the cobalt-based alloy containing eutectic carbides comprising chromium carbides which are divided into particles with an average particle diameter of 30 μm or smaller, and a ceramic, to at least either of the contact faces of the valve element 1 and the valve box 2 or at least either of the contact faces of the idler ring of the mechanical seal and the seat ring of the mechanical seal.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提高复合材料在具有钴基合金和陶瓷的复合材料的阀门或机械密封件中的耐腐蚀性和耐冲蚀性。解决方案：阀或机械密封件在具有阀元件1和阀箱2的阀中或在机械密封件中具有推动能够沿轴向移动的惰轮的端面的结构同时通过扩散接合由含钴的钴基合金的复合材料形成的部件，使不会旋转的座圈的端面旋转，以紧密接触两个端面并密封机械密封。包含平均粒径为30μm以下的颗粒的碳化铬和陶瓷的共晶碳化物，与阀体1和阀箱2的至少任一个接触面或至少任一个接触面机械密封的惰轮的表面和机械密封的座圈。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2003207059A VALVE AND ITS MANUFACTURING METHOD 审中-公开
公开(公告)号：JP2003207059A
公开(公告)日：2003-07-25
申请号：JP2002004034
申请日：2002-01-11
申请人： HITACHI LTD
发明人： CHIKAZAKI MITSUO , MATSUSHITA SHIZUO , KUNIYA JIRO , KIYOTOKI YOSHIHISA , TAKESHIMA KIKUO , SAKAMOTO AKIRA , CHIBA YOSHITERU
IPC分类号： G21D1/00 , B22F5/00 , B22F7/06 , C22C1/05 , C22C19/05 , C22C38/12 , C22C38/32 , C22C38/34 , F16K3/12 , F16K25/00
摘要： PROBLEM TO BE SOLVED: To provide a valve having superior wear resistance and seizure resistance without containing cobalt. SOLUTION: Valve seats 4, 5 of a valve element 2 and a valve box 3 are formed of a nickel group alloy in which small-size silicide particles or boronide particles are finely dispersed. Liquid phase diffusion bonding is applied between the valve seat and the valve element or the valve box via an insert material formed of a low-melting-point nickel group alloy. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2002146486A CORROSION RESISTANT AND WEAR RESISTANT ALLOY AND APPARATUS USING THE SAME 审中-公开
公开(公告)号：JP2002146486A
公开(公告)日：2002-05-22
申请号：JP2001235714
申请日：2001-08-03
申请人： HITACHI LTD , HITACHI KYOWA ENG CO LTD
发明人： KIYOTOKI YOSHIHISA , CHIBA YOSHITERU , KUMAGAI MAKOTO , OGAWA SUKEHIRO , SAKAMOTO AKIRA , SHINOHARA HIROYUKI
IPC分类号： C21D7/13 , C21D8/00 , C22C19/00 , C22C19/05 , C22C19/07 , C22C38/00 , C22C38/14 , C22C38/34 , C22C38/44 , C22C38/58 , C22F1/00 , C22F1/10 , F01L3/02 , F04B53/00
摘要： PROBLEM TO BE SOLVED: To provide a corrosion resistant and wear resistant alloy in which the chain of the corrosion of eutectic carbides composing a cobalt based, nickel based or iron based alloy used for the sliding part and valve seat of apparatus in a dissolved oxygen atmosphere. SOLUTION: In this corrosion resistant and wear resistant alloy, an intermediate stock obtained by casting a stock selected from a cobalt base with Cr and/or W added, a nickel base with Fe and/or Cr added or an iron base with Cr and/or Ni added into an ingot or a slab is subjected to hot plastic working at the solidus temperature or lower. In the structure composed of network eutectic carbides in the intermediate stock and a base material part surrounded thereby, the eutectic carbides are formed to plural granular or lumpy ones into a noncontinuous distribution. Its friction coefficient is controlled to 0.1 to 0.5. Its Vickers hardness in a state where aging treatment is not performed is controlled to 300 to 600 Hv.

5. 发明专利

JPS58144783A PRESSURE SUPPRESSION CHAMBER VENT TUBE USING SHAPE MEMORY ALLOY 失效
公开(公告)号：JPS58144783A
公开(公告)日：1983-08-29
申请号：JP2735382
申请日：1982-02-24
申请人： HITACHI LTD
发明人： KIYOTOKI YOSHIHISA
IPC分类号： G21C9/004 , G21C9/00

6. 发明专利

JP2005290529A Valve and its production method, power generation plant using the same, and member for valve 有权
标题翻译：阀门及其生产方法，使用其的发电厂和阀门的成员
公开(公告)号：JP2005290529A
公开(公告)日：2005-10-20
申请号：JP2004111669
申请日：2004-04-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： CHIKAZAKI MITSUO , KIYOTOKI YOSHIHISA , KUMAGAI MAKOTO , FURUSAWA SATOSHI , KUNIYA JIRO , KATO TAKAHIKO
IPC分类号： F16K25/00 , B22F3/15 , B22F3/20 , B22F9/08 , B23K20/00 , B23K101/34 , B23K103/24 , C22C19/00 , C22C38/00 , C22C38/22 , F16K3/12
摘要： PROBLEM TO BE SOLVED: To provide a valve having a higher hardness and higher impact resistance, and its production method, and a power generation plant and members for the valve using the same.
SOLUTION: The valve has a valve body and a valve box and one kind selected from a cobalt-based alloy member with a chromium carbide dispersed into a base, a nickel-based alloy member, and an iron-based alloy member is formed on valve seat surfaces sliding each other. The valve member is formed by hydrostatic pressurization sintering or hot extrusion sintering and is diffusion-joined to the valve seat.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有较高硬度和较高抗冲击性的阀及其制造方法，以及发电设备及使用该阀的阀构件。解决方案：阀具有阀体和阀箱，并且选自钴基合金构件中的一种，碳化铬分散在基体中，镍基合金构件和铁基合金构件形成在阀座表面上彼此滑动。阀构件通过静水压力烧结或热挤压烧结形成，并且与阀座扩散接合。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2003048076A Joined structure of cobalt-based alloy 有权
标题翻译：基于钴的合金的接合结构
公开(公告)号：JP2003048076A
公开(公告)日：2003-02-18
申请号：JP2001235707
申请日：2001-08-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIYOTOKI YOSHIHISA , CHIKAZAKI MITSUO , MATSUSHITA SHIZUO , KUNIYA JIRO , KATO TAKAHIKO , CHIBA YOSHITERU
IPC分类号： G21D1/00 , B23K20/00 , B23K35/30 , B23K103/08 , C22C19/07 , F16K25/00 , G21D1/02
CPC分类号： G21D1/02 , Y02E30/40 , Y10T137/7036 , Y10T428/12861 , Y10T428/12931 , Y10T428/12937
摘要： PROBLEM TO BE SOLVED: To improve the corrosion resistance and wear resistance of a cobalt- based alloy part in a joined structure of a cobalt-based alloy. SOLUTION: In the joined structure of a cobalt-based alloy, a cobalt-based alloy layer 1 where granular or aggregated eutectic carbide particles 2 are dispersed is joined to the metal of a base material 37 via an insert material layer 36. The joined structure of the cobalt-based alloy is obtained by; interposing an insert material having a thickness of about 40 μm into the space between the base material of S45C carbon steel and a cobalt-based alloy material which has a composition containing, by weight, 1.03% C, 29.73% Cr, 3.86% W, 2.59% Ni, 2.67% Fe, 0.59% Si and 0.07% Mo, and the balance substantially Co and which contains granular or aggregated eutectic carbide particles having a particle size of
摘要翻译：要解决的问题：提高钴基合金的接合结构中的钴基合金部件的耐腐蚀性和耐磨性。解决方案：在钴基合金的接合结构中，分散有颗粒或聚集的共晶碳化物颗粒2的钴基合金层1通过插入材料层36接合到基材37的金属。接合结构的钴基合金通过以下方式得到：将具有约40μm厚度的插入材料插入到S45C碳钢的基材和钴基合金材料之间的空间中，所述钴基合金材料具有重量比为1.03％C，29.73％Cr，3.86％W的组成， 2.59％Ni，2.67％Fe，0.59％Si和0.07％Mo，余量基本上为Co，并且在铸造结构的基体中含有粒径<=30μm的粒状或聚集的共晶碳化物颗粒; 并在1,100℃进行液相扩散接合1小时的保持时间。接合后的钴系合金层1含有粒状或聚集的共晶碳化物。

8. 发明专利

JP2002097913A INTERNAL COMBUSTION ENGINE AND PART USED FOR IT 失效
公开(公告)号：JP2002097913A
公开(公告)日：2002-04-05
申请号：JP2000295424
申请日：2000-09-25
申请人： HITACHI LTD , HITACHI KYOWA ENG CO LTD
发明人： SHINOHARA HIROYUKI , KIYOTOKI YOSHIHISA , KUMAGAI MAKOTO , CHIBA YOSHITERU , SAKAMOTO AKIRA , OGAWA SUKEHIRO
IPC分类号： F01L3/02 , C22C19/03 , C22C19/07 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To improve the efficiency of an engine and the corrosion resistance of a valve seat section under the corrosion environment caused by the sulfur content, etc., contained in the fuel for the engine by highly hardening the slide section of a valve for the engine and reducing the sliding resistance of the valve. SOLUTION: Co group alloy 13 having ball-shaped or granular eutectic carbide is liquid-phase-diffusion-bonded to the region having the sealing function of an intake and exhaust valve 5 and a valve seat 6 for the cylinder 10 of the engine.

9. 发明专利

JPH05232290A DEVICE AND METHOD FOR CONTROLLING PNEUMATIC TYPE MAIN STEAM SEPARATION VALVE 失效
公开(公告)号：JPH05232290A
公开(公告)日：1993-09-07
申请号：JP3628792
申请日：1992-02-24
申请人： HITACHI LTD
发明人： KIYOTOKI YOSHIHISA , SAKAMOTO AKIRA , JITSUMATSU TAKAYOSHI
IPC分类号： G21D1/00 , G21D3/04
摘要： PURPOSE:To ensure an operation space for a maintenance operation for pneumatic control equipment even when the pneumatic control equipment is made large in size by integration and combination. CONSTITUTION:Pneumatic control equipment 5 is separated from a pneumatic type main steam separation valve 1 and installed on an aseismic rack 10 having an aseismic function being equal to the one of the pneumatic type main steam separation valve 1. The pneumatic control equipment 5 and an air cylinder 2 of the pneumatic type main steam separation valve 1 are connected with each other by an air piping 11. A flexible tube 12 is provided in the middle of the air piping 11, and even when the pneumatic type main steam separation valve 1 is displaced due to heat or others, it absorbs the displacement and prevents occurrence of a strain in the air piping 11.

10. 发明专利

JPH03177665A SPRING SAFETY VALVE, SAFETY VALVE SYSTEM EQUIPMENT AND EQUIPMENT FITTING METHOD 失效
公开(公告)号：JPH03177665A
公开(公告)日：1991-08-01
申请号：JP31529089
申请日：1989-12-06
申请人： HITACHI LTD
发明人： KIYOTOKI YOSHIHISA , SAKAMOTO AKIRA
IPC分类号： F16K17/04 , F16K17/168
摘要： PURPOSE:To maintain safe performance by setting the thermal expansion coefficient of valve guide material larger than that of valve body material, thereby maintaining a clearance between the guide and valve body appropriately. CONSTITUTION:When a safety valve is in the totally closed state, a valve body 1 is heated directly by a high temperature fluid so as to generate thermal expansion. On the other hand, heat is transmitted to a guide 2 through a valve box 8, but because of the valve box 2 being cooled by atmospheric air, the temperature among the guide 2, the valve body 1 and a disc socket 1a differs, and a clearance deltaa between the guide 2 and the disc socket 1a of the valve body 1 is narrowed. However, as the thermal expansion coefficient of the material of the guide 2 is set to be larger than that of the material of the disc socket 1a, the clearance deltaa between both parties can be maintained appropriately, thereby maintaining safe performance.

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