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1. 发明专利

JPS629768B2 失效
公开(公告)号：JPS629768B2
公开(公告)日：1987-03-02
申请号：JP14832780
申请日：1980-10-24
申请人： HITACHI LTD
发明人： NAKAUCHI YOSHIAKI , KIKUCHI TOSHIHIRO , ABE SEBUO , MORIMOTO MASAAKI
IPC分类号： F15B21/04 , F16D33/08

2. 发明专利

JPH03140633A HYDRAULIC COUPLING 失效
公开(公告)号：JPH03140633A
公开(公告)日：1991-06-14
申请号：JP27586589
申请日：1989-10-25
申请人： HITACHI LTD
发明人： KIKUCHI TOSHIHIRO
IPC分类号： F16D33/12
摘要： PURPOSE:To be set anywhere over the whole range of an operating point at the low speed side by using a valve attached to the circumference of a rotor of a hydraulic coupler as a centrifugal valve, and dividing a back pressure oil feeding path for opening or closing this valve into two systems. CONSTITUTION:At time of high speed operation, oil passes valves 2, 3 from a pump 1, closing a centrifugal valve 6 after passing through back pressure circuits 9, 10 of this centrifugal valve 6, thereby supplying oil to an operating chamber from both hydraulic fluid feeding circuits 11, 12 and thus it transmits a torque to an output shaft 8 from an input shaft 7. At time of low speed operation, the oil closes the valve 2 and opens the valve 3 instead. No oil is fed to the back pressure circuit 10 and the centrifugal valve 6 is opened while the oil in the operating chamber is discharged. Accordingly, oil collected in the operating chamber is restricted to some extent so that rotational frequency is lowered. Since the torque being transmitted to the output shaft 8 by an oil amount being collected in the operating chamber is determined, a hydraulic coupling is enabled to be set anywhere over the whole range of an operating point at the low speed side as in this way.

3. 发明专利

JPS5773237A Working-oil supplier for variable-speed fluid coupling 失效
标题翻译：用于变速流体联轴器的工作油供应商
公开(公告)号：JPS5773237A
公开(公告)日：1982-05-07
申请号：JP14832780
申请日：1980-10-24
申请人： Hitachi Ltd
发明人： NAKAUCHI YOSHIAKI , KIKUCHI TOSHIHIRO , ABE SEMUO , MORIMOTO MASAAKI
IPC分类号： F15B21/04 , F16D33/08
摘要： PURPOSE: To reduce remarkably the fluctuation in the rotating speed of the output shaft in the captioned supplier used in a reactor power station, by connecting suction sides of both a normal hydraulic pump and a spare hydraulic pump, thereby removing air reserved in the spare hydraulic pump.
CONSTITUTION: The working oil flowing from an oil tank through an inlet port 24 is pressurized by a normal hydraulic pump 13 and delivered to an impeller side th rough a delivery port 25. The air reserved in the low-pressure side of a space hydraulic pump out of operation is sucked out by the suction (negative) pressure created in the suction side of the normal hydraulic pump 13 under operation. By setting the pressure at a low-pressure side circuit 15 of the normal hydraulic pump 13 under operation to approx. -0.1kg/cm
2 .g by means of a throttle 19, and by setting the pressure of the spare hydraulic pump 14 out of operation to approx. 0.1kg/cm
2 .g by means of a throttle 20, the air can be flowed effectively.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过连接普通液压泵和备用液压泵的吸入侧，可以显着减少反应堆发电站使用的字幕供应商输出轴转速的波动，从而消除备用液压泵。构成：从油箱通过入口24流动的工作油由普通液压泵13加压，并输送到输送口25的叶轮侧。空间液压泵的低压侧的空气在正常的液压泵13的吸入侧产生的吸入（负）压力的作用下，不工作地被吸出。通过将正常液压泵13的低压侧回路15的压力设定为约 -0.1kg / cm 2，通过节气门19，并且将备用液压泵14的压力设定为约 0.1kg / cm 2，通过节流阀20可以有效地流动空气。

4. 发明专利

JP2003043077A Higher harmonic measuring equipment 审中-公开
标题翻译：更高谐波测量设备
公开(公告)号：JP2003043077A
公开(公告)日：2003-02-13
申请号：JP2001233389
申请日：2001-08-01
申请人： Hitachi Ltd , Tokyo Electric Power Co Inc:The , 東京電力株式会社 , 株式会社日立製作所
发明人： YASUKAWA SABURO , NAMIKATA KIYONORI , OGAWA KENJI , KOGURE EIJI , KIKUCHI TOSHIHIRO , OGIWARA YOSHINORI , MAKI MAKOTO
IPC分类号： G01R27/02 , G01R19/00 , G01R23/20 , H02H3/52
摘要： PROBLEM TO BE SOLVED: To solve such a problem that it has been impossible to avoid the size of an oscillator becoming larger, which is required conventionally for taking following current measures, insulation measures for example, to deal with a current of a three-phase power system noise currents which flow in the oscillator in a harmonic current injector.
SOLUTION: Reduction in the size of the oscillator 8 is realized, by causing the harmonic current injector 13 to have an oscillator 8 and a filter 9 which causes only a power-system 1 side current to flow, and causing only noise currents to flow in the oscillator 8.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了解决这样的问题，即不可能避免振荡器的尺寸变大，这是传统上用于采取以下电流措施所需要的绝缘措施，例如，以处理三相电流在谐波电流注入器中在振荡器中流动的电力系统噪声电流。解决方案：通过使谐波电流注入器13具有振荡器8和滤波器9来实现振荡器8的尺寸的减小，该振荡器8和滤波器9仅使电力系统1侧电流流动，并且仅使噪声电流流入振荡器8。

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