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91. 发明专利

JP2007232432A Chimney of natural circulation type boiling water reactor 审中-公开
标题翻译：自然循环型锅炉水反应器CHIMNEY
公开(公告)号：JP2007232432A
公开(公告)日：2007-09-13
申请号：JP2006051787
申请日：2006-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIDA KAZUNARI , WADA YOICHI , NAGASE MAKOTO , HOSOKAWA HIDEYUKI , WATANABE ATSUSHI
IPC分类号： G21D1/00 , G21C15/02 , G21C15/26
CPC分类号： C23F15/00 , C23F11/18 , C23F11/185
摘要： PROBLEM TO BE SOLVED: To provide a chimney of a natural circulation type boiling water reactor capable of suppressing exposure of an operator by a radiation at a chimney exchanging time or the like by a pressure drop caused by adhesion of a corrosion product or by adhesion of a radioactive corrosion product. SOLUTION: This chimney 11 is installed on the core of the natural circulation type boiling water reactor. The chimney 11 has a layer 81 comprising a titanium oxide or a zirconium oxide on at least a part of a liquid-contact surface 81a. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种天然循环型沸水反应器的烟囱，其能够通过由腐蚀产物的粘附引起的压降在烟囱更换时间等下通过辐射来抑制操作者的暴露，或者通过粘附放射性腐蚀产物。解决方案：该烟囱11安装在自然循环式沸水反应堆的核心上。烟道11具有在液体接触表面81a的至少一部分上包含氧化钛或氧化锆的层81。版权所有（C）2007，JPO＆INPIT

92. 发明专利

JP2007077476A Surface treatment method 有权
标题翻译：表面处理方法
公开(公告)号：JP2007077476A
公开(公告)日：2007-03-29
申请号：JP2005269369
申请日：2005-09-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NISHIOKA EIJI , WATANABE ATSUSHI
IPC分类号： C23C26/00 , F01D5/28
摘要： PROBLEM TO BE SOLVED: To provide a surface treatment method with which a coating layer having sufficient erosion resistance can be formed while suppressing influence on the member to be treated by heat input. SOLUTION: In the surface treatment method, voltage is applied between the member to be treated and an electrode, and pulse discharge is generated so as to melt the electrode, and a coating layer as the melted electrode component is formed on the surface of the member to be treated. The voltage to be applied to the electrode is controlled to 300 to 1,000 V, the frequency of the pulse is controlled to 500 to 1,000 Hz, the width of the pulse is controlled to 50 to 100 μm, and the scanning rate of the electrode moving to the surface of the member to be treated upon the formation of the coating layer is controlled to 500 to 2,000 mm/min. According to the surface treatment method, the coating layer having sufficient erosion resistance can be formed while suppressing the influence on the member to be treated by heat input. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种表面处理方法，通过该表面处理方法可以在通过热输入抑制对要处理的构件的影响的同时形成具有足够耐侵蚀性的涂层。解决方案：在表面处理方法中，在待处理部件和电极之间施加电压，产生脉冲放电以熔化电极，并且在表面上形成作为熔融电极部件的涂层的待处理成员。施加于电极的电压被控制在300〜1000V，将脉冲的频率控制在500〜1000Hz，将脉冲宽度控制在50〜100μm，电极的扫描速度移动在形成涂层时待处理部件的表面被控制为500〜2000mm / min。根据表面处理方法，可以在抑制通过热输入对待处理的构件的影响的同时，形成具有足够的耐侵蚀性的涂层。版权所有（C）2007，JPO＆INPIT

93. 发明专利

JP2005330888A Camshaft phase variable device for internal combustion engine 有权
标题翻译：用于内燃机的CAMSHAFT相变装置
公开(公告)号：JP2005330888A
公开(公告)日：2005-12-02
申请号：JP2004149689
申请日：2004-05-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAYASE ISAO , WATANABE ATSUSHI , YAMAMURO SHIGEAKI , WATANABE MASAHIKO , KOBAYASHI YOSHIYUKI , YAMANAKA JUNJI
IPC分类号： F01L1/34 , F01L1/344
CPC分类号： F01L1/34409
摘要： PROBLEM TO BE SOLVED: To widen a control range, to improve fail-safe properties in faults and reliability, and to miniaturize a camshaft phase variable device utilizing fluctuation torque operating on a camshaft as drive force. SOLUTION: In the conventional camshaft phase variable device utilizing fluctuation torque operating on the camshaft as drive force, an actuator means for selectively releasing wedge engagement can be rotated and driven in both the circumferential directions according to a relation in a level in torque by a braking means and a return spring, thus releasing the wedge engagement directly or via a lever mechanism. And a plane section is formed at a rotating member, such as a sprocket, rotated and driven by the crankshaft of an engine, a cylindrical surface is formed at the rotating member fixed to the camshaft, and the wedge engagement is composed by them and a wedge member built between them. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了扩大控制范围，提高故障和可靠性中的故障安全性能，并且利用在凸轮轴上操作的波动扭矩作为驱动力来使凸轮轴相位可变装置小型化。解决方案：在以凸轮轴作为驱动力的摆动扭矩的传统的凸轮轴相位可变装置中，可以根据扭矩水平的关系在两个圆周方向上旋转和驱动用于选择性地释放楔形接合的致动器装置通过制动装置和复位弹簧，从而直接或通过杠杆机构释放楔形接合。并且在由发动机的曲轴旋转驱动的旋转构件（例如链轮）上形成有平面部，在固定于凸轮轴的旋转构件上形成有圆筒面，楔形接合由它们构成，它们之间建立楔形构件。版权所有（C）2006，JPO＆NCIPI

94. 发明专利

JP2005281802A Surface treatment method and surface treatment device 审中-公开
标题翻译：表面处理方法和表面处理装置
公开(公告)号：JP2005281802A
公开(公告)日：2005-10-13
申请号：JP2004099562
申请日：2004-03-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NISHIOKA EIJI , WATANABE ATSUSHI , ANZAI HIDEYA
IPC分类号： C23C26/00
摘要： PROBLEM TO BE SOLVED: To provide a surface treatment method and a surface treatment device capable of forming a coating layer having the performance to be required while suppressing influence on the member to be treated caused by heat input.
SOLUTION: In the surface treatment method and device therefor, voltage is applied to the space between the electrically conductive member 11 to be treated and a bar-shaped electrode 3 to generate discharge, thus a coating layer 18 of electrode components is formed on the surface of the member 11 to be treated. The coating layer 18 is formed while vibrating the electrode 3 between a state where the tip part of the electrode 3 is contacted with the member 11 to be treated and a state where the electrode 3 and the member to be treated are separated by a distance at which discharge is generated therebetween or further. Thus, the coating layer satisfying the performance to be required can be formed, and further, heat input volume at the time of forming the coating layer can be securely reduced to ≤1 kJ/cm. Thus, the coating layer having the performance to be required can be formed while suppressing influence on the member to be treated caused by heat input.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种表面处理方法和能够形成具有所需性能的涂层的表面处理装置，同时抑制由热输入引起的被处理部件的影响。解决方案：在表面处理方法及其装置中，对被处理导电构件11和棒状电极3之间的空间施加电压以产生放电，由此形成电极部件的涂层18 在要处理的构件11的表面上。在电极3的前端部与待处理部件11接触的状态和电极3与待处理部件分离状态之间，将电极3振动一边形成涂层18，其间产生放电或进一步。因此，可以形成满足所需性能的涂层，此外，可以将形成涂层时的热输入体积可靠地降低至≤1kJ/ cm。因此，可以在抑制由热输入引起的被处理部件的影响的同时，形成具有所需性能的涂层。版权所有（C）2006，JPO＆NCIPI

95. 发明专利

JP2004358547A Overlaying method and device 有权
公开(公告)号：JP2004358547A
公开(公告)日：2004-12-24
申请号：JP2003163090
申请日：2003-06-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NISHIOKA EIJI , WATANABE ATSUSHI , ANZAI HIDEYA
IPC分类号： B23K9/04 , B23K9/235
摘要： PROBLEM TO BE SOLVED: To solve a problem that corrosion resistance and mechanical strength are deteriorated due to the development of corrosion and cracking on a overlaid part if voids occur and remain on the surface of the overlaid part because of poor adhesion among droplets and the entrainment of gases, in a pulse discharge overlaying method in which the overlaid part is formed by depositing many droplets on the surface of a workpiece.
SOLUTION: In the pulse discharge overlaying method in which a overlaid part is formed with an electrode material fused by pulse discharge, the workpiece is heated and then is subjected to pulse discharge overlaying whereby voids on the overlaid part can be lessened.
COPYRIGHT: (C)2005,JPO&NCIPI

96. 发明专利

JP2004351471A Method for preventing corrosion and device for forming anti-corrosive coating film 审中-公开
公开(公告)号：JP2004351471A
公开(公告)日：2004-12-16
申请号：JP2003152433
申请日：2003-05-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE ATSUSHI , NISHIOKA EIJI , YAMAMOTO MICHIYOSHI
IPC分类号： H05B7/00 , B23K9/04 , B23K9/16 , B23K9/173 , C23C26/00 , H05B7/07
摘要： PROBLEM TO BE SOLVED: To provide a method for preventing crevice corrosion by a pulse discharging method and to provide a forming device of anti-corrosive coating film.
SOLUTION: In this method, by generating pulse discharge between a structural member (20) and an electrode (2) in a gap part formed in a joining part, a fastening part or the like of the structural member (20), melting the electrode 2 by discharging heat and building up by moving the molten material to the gap part, a covering layer (55) for intercepting the penetration of water or a medium in the gap part is formed and the pulse discharge is set in combination so that control factor correlated with the oxygen concentration of the covering layer (55) allows the oxygen concentration to reduce. In this way, the covering layer (55) having no defect is formed and crevice corrosion is prevented.
COPYRIGHT: (C)2005,JPO&NCIPI

97. 发明专利

JP2004036392A Screw compressor and check valve device for screw compressor 审中-公开
公开(公告)号：JP2004036392A
公开(公告)日：2004-02-05
申请号：JP2002190123
申请日：2002-06-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATANABE ATSUSHI , KAMETANI HIROCHIKA , SATO EIJI , URASHIN MASAYUKI , NOZAWA SHIGEKAZU , HIDA TAKESHI , OSUMIMOTO HIROMOTO
IPC分类号： F04C18/16 , F04C29/02
摘要： PROBLEM TO BE SOLVED: To provide a screw compressor and a check valve device for the screw compressor for restraining a return of an oil to the suction side while restraining reverse rotation of a screw rotor when stopping the compressor.
SOLUTION: This screw compressor has the rotatably journaled screw rotor 11, an oil separating chamber 8 having a demister 21, a delivery passage 14 for delivering compressed air compressed by the screw rotor 11 to the oil separating chamber 8, the check valve device 16 arranged in this delivery passage 14, an oil return passage 24 for returning the oil in the oil separating chamber 8 to a bearing 12 of the screw rotor 11 and a cutoff valve 25 arranged in this oil return passage 24.
COPYRIGHT: (C)2004,JPO

98. 发明专利

JP2003205385A METHOD AND DEVICE OF REPAIRING STRUCTURAL MEMBER 审中-公开
公开(公告)号：JP2003205385A
公开(公告)日：2003-07-22
申请号：JP2002002538
申请日：2002-01-09
申请人： HITACHI LTD
发明人： WATANABE ATSUSHI , UETAKE NAOTO , ANZAI HIDEYA , YOKOI HIROTO , NISHIOKA EIJI
IPC分类号： G21C19/02 , B23K31/00
摘要： PROBLEM TO BE SOLVED: To suppress a stress generation and a structural variation due to a input heat to a structural member in a repairing work. SOLUTION: A repairing welding method selected on the basis of running environment data of a part to be repaired is used, a welding power is adjusted on the basis of an output and working data, a welding for repairing work is performed within an allowable heat input range. The running environment data are the quality of water, temperature, irradiated amount of neutrons, material and helium content of the part to be repaired, the working data are the relations or the like between the welding condition and the aspect of the part to be repaired including the relation between the welding power and the heat input in the welding method or the relation between the welding output and the material, and the welding output is decided on the basis of factors including geometrical values decided by the dimension of an electrode which varies the output according to values including a voltage, a current and time, and the gap between the electrode and the structural member. COPYRIGHT: (C)2003,JPO

99. 发明专利

JP2003194988A SUPPRESSION METHOD FOR STRESS CORROSION CRACKING OF NUCLEAR APPLIANCE MEMBER AND FILM FORMATION DEVICE FOR NUCLEAR APPLIANCE MEMBER 审中-公开
公开(公告)号：JP2003194988A
公开(公告)日：2003-07-09
申请号：JP2001400539
申请日：2001-12-28
申请人： HITACHI LTD
发明人： YOKOI HIROTO , WATANABE ATSUSHI , UETAKE NAOTO
IPC分类号： G21D1/00 , C23C14/24 , C23F15/00
摘要： PROBLEM TO BE SOLVED: To suppress occurrence and propagation of stress corrosion cracking in reactor materials. SOLUTION: A film 3 of an electrode component is formed on a film formation surface of structure members by impressing voltage between an electrode 4 mainly composed of rare metal elements and nuclear appliance structure member 2, and generating discharge between the electrode and the film formation surface 2a of the structure member in air atmosphere. COPYRIGHT: (C)2003,JPO

100. 发明专利

JP2003042081A Screw compressor 审中-公开
标题翻译：螺旋压缩机
公开(公告)号：JP2003042081A
公开(公告)日：2003-02-13
申请号：JP2001228845
申请日：2001-07-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OSUMIMOTO HIROMOTO , NOZAWA SHIGEKAZU , URASHIN MASAYUKI , HIDA TAKESHI , KAMETANI HIROCHIKA , WATANABE ATSUSHI
IPC分类号： F04B39/04 , F04C11/00 , F04C18/08 , F04C18/16 , F04C29/02 , F04C29/12 , F04C29/00
CPC分类号： F04C18/16 , F04C11/00 , F04C18/086 , F04C29/02 , F04C29/026 , Y10S55/17 , Y10S418/01
摘要： PROBLEM TO BE SOLVED: To provide a screw compressor with a small-sized simple structure capable of reducing quantity of oil flowing out of the compressor.
SOLUTION: The screw compressor is provided with a main casing 1 including a male and a female rotor 6, a discharging casing 3 including a discharging passage 15 of compressed gas discharged from the rotors, an oil reservoir 19 collecting oil separated from compressed gas. A cylindrical oil separating space part 4 communicating to the discharging passage 15 is formed on the discharging casing and the discharging passage 15 is connected to a tangential direction of the oil separating space part 4. A discharging opening 14 is provided to communicate with the oil separating space part 4 and a cylindrical member 5 is provided coaxially to the oil separating space part 4. The oil separation space part 4 and the oil reservoir 19 are connected with a communication passage of smaller section area than section area of the oil separating space part 4.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种能够减少从压缩机流出的油量的小型简单结构的螺杆式压缩机。解决方案：螺杆式压缩机设置有包括阳和阴转子6的主壳体1，包括从转子排出的压缩气体的排出通道15的排出壳体3，收集从压缩气体分离的油的储油器19。在排出壳体上形成有与排出通道15连通的圆柱形的油分离空间部分4，并且排出通道15与油分离空间部分4的切线方向连接。排出口14设置成与油分离空间部分4和圆柱形构件5同轴地设置在分油空间部分4上。油分离空间部分4和储油器19与分油空间部分4的截面面积小的截面积的连通通道连接。

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