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1. 发明专利

JP2009119901A Power steering apparatus 审中-公开
标题翻译：动力转向装置
公开(公告)号：JP2009119901A
公开(公告)日：2009-06-04
申请号：JP2007292863
申请日：2007-11-12
申请人： Hitachi Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社日立製作所
发明人： KURATA MASAKAZU , SAKAKI TOSHIMITSU , SASAKI MITSUO , YAMAURA TAMOTSU , NAKADA MITSUAKI , ONO KOHEI , KASAI EIJI , SAITO TAKATOSHI
IPC分类号： B62D5/07 , F16K47/02
CPC分类号： B62D5/065 , B62D5/064
摘要： PROBLEM TO BE SOLVED: To solve a problem wherein the flow of a hydraulic fluid becomes turbulent in a check valve to cause noise when a flow rate per unit time is increased in the check valve by abrupt steering. SOLUTION: A Reynolds number in a first one-way valve is 2,300 or less when the flow rate per unit time of the hydraulic fluid flowing in the first one-way valve is maximum, and a Reynolds number in a second one-way valve is 2,300 or less when the flow rate per unit time of the hydraulic fluid flowing in the second one-way valve is maximum. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了解决在单向阀中的单位时间流量由于突然转向而增大时，止回阀中的液压流体的流动变得湍流而产生噪音的问题。解决方案：当在第一单向阀中流动的液压流体的每单位时间的流量最大时，第一单向阀中的雷诺数为2,300或更小，并且第二单向阀中的雷诺数为当第二单向阀中流动的液压流体的每单位时间的流量最大时，双向阀为2,300或更小。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2009079644A Solenoid valve and power steering device 审中-公开
标题翻译：电磁阀和动力转向装置
公开(公告)号：JP2009079644A
公开(公告)日：2009-04-16
申请号：JP2007248489
申请日：2007-09-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKADA MITSUAKI
IPC分类号： F16K31/06 , B62D5/07 , B62D5/10
摘要： PROBLEM TO BE SOLVED: To provide a solenoid valve which dispenses with a connection part of a movable piece and a spool, and can be constituted small in size as a whole. SOLUTION: A substantially step-shaped movable piece 14 is cut by machining a round-bar-shaped material. A main body 21 of the movable piece disposed at the inner circumference side of a coil 13 and a spool 22 that serves as a valve element extends from the main body 21 of the movable piece to the side of a main body 16 of a spool housing serving as a valve case, and inserted into the main body 16 of the spool housing are integrally formed. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种省去可动件和线轴的连接部分的电磁阀，并且可以构成整体尺寸小。解决方案：通过加工圆棒状材料来切割大致阶梯形的可动件14。设置在线圈13的内周侧的可动件的主体21和用作阀元件的阀芯22从可动件的主体21延伸到阀芯壳体的主体16的侧面作为阀壳并插入到卷轴壳体的主体16中是一体形成的。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2006046283A Inscribed type gear pump 审中-公开
标题翻译：插入式齿轮泵
公开(公告)号：JP2006046283A
公开(公告)日：2006-02-16
申请号：JP2004232048
申请日：2004-08-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KURATA MASAKAZU , KUSATSUMI TAKUMI , NAKAKUKI YASUHITO , NAKADA MITSUAKI , OTAKI MIZUO
IPC分类号： F04C2/10 , F04C15/00
CPC分类号： F04C2/102 , F04C15/0042
摘要： PROBLEM TO BE SOLVED: To secure stable pump delivery quantity regardless of machining tolerance of an outer rotor and an inner rotor.
SOLUTION: Between internal and external teeth 3a and 4a of the outer rotor 3 and the inner rotor 4, an enclosure part 15 in which the volume of a pump chamber 6 formed there becomes the largest and an engagement part 16 where the volume of the pump chamber becomes the smallest are provided. A low pressure passage 17 communicated with atmospheric pressure is provided in the inner diameter direction of a cam ring 12 provided at an angular position of θin a range of 20-50° from a border line X connecting the enclosure part to the engagement part toward a delivery port 8. An opening part 17a at one end of the low pressure passage is opened/closed by an outer circumferential surface 3b of the outer rotor to balance pressure added to the outer rotor, thereby contact pressure between the teeth in the enclosure part is set proper.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：无论外转子和内转子的加工公差如何，都能确保稳定的泵输送量。解决方案：在外转子3的内外齿3a和4a与内转子4之间，形成在其中的泵室6的容积最大的外壳部分15和其中容积的泵室成为最小的。与凸轮环12的内径方向设置有一个低压通道17，该凸轮环12设置在从连接外壳部分到接合部分的边界线X到20-50°的θ的角度位置处输送口8.在低压通道的一端的开口部分17a由外转子的外圆周表面3b打开/关闭，以平衡加到外转子上的压力，从而外壳部分的齿之间的接触压力设置正确。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2009174619A Solenoid valve 审中-公开
标题翻译：电磁阀
公开(公告)号：JP2009174619A
公开(公告)日：2009-08-06
申请号：JP2008013265
申请日：2008-01-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKADA MITSUAKI , SAKAKI TOSHIMITSU
IPC分类号： F16K31/06
摘要： PROBLEM TO BE SOLVED: To provide a solenoid valve not requiring high processing accuracy.
SOLUTION: A case has a step part formed on the housing side, a flange part formed in a fixing core and fixed by engaging with the step part, and an energizing member for energizing the fixing core to the step part side or the housing side in the opposite direction of a housing.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供不需要高加工精度的电磁阀。解决方案：壳体具有形成在壳体侧的台阶部分，形成在固定芯中并通过与台阶部分接合而固定的凸缘部分，以及用于将固定芯部激励到台阶部分侧的激励部件或壳体侧与壳体相反的方向。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008111490A Solenoid valve 有权
标题翻译：电磁阀
公开(公告)号：JP2008111490A
公开(公告)日：2008-05-15
申请号：JP2006295063
申请日：2006-10-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKADA MITSUAKI , MISUNO MASAKI
IPC分类号： F16K31/06 , H01F7/127 , H01F7/16
摘要： PROBLEM TO BE SOLVED: To provide a solenoid valve which can promote a reduction in manufacturing costs by facilitating processing and assembling works. SOLUTION: The solenoid valve 21 includes a movable core 24, a fixed core 25, and a coil unit 23 in a housing 22 which is formed nearly in a covered cylinder shape. The movable core is stored and held axially so as to slide. The fixed core is arranged axially below the movable core by facing the movable core and fittingly inserted so as to block the opening of the housing. The coil unit is arranged by spanning the peripheries of both counter ends of the fixed core and the movable core, and stored and arranged so as to surround the peripheral areas of both the counter ends. In the housing, a movable core retaining part 22c which slidably holds the other axial end of the movable core in is extended axially outside uniting with the edge of an outer end of a coil holding part 22b which holds the coil unit. Consequently, processing workability of the housing is improved, which in turn assembling workability of the solenoid valve is improved. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种电磁阀，其可以通过促进加工和组装工作来促进制造成本的降低。解决方案：电磁阀21在壳体22中包括可动芯24，固定芯25和线圈单元23，壳体22形成为几乎为圆筒状。可动芯体被轴向保存并保持滑动。固定铁芯通过面对可动铁心轴向设置在可动铁芯的下面，并被适当插入以阻挡壳体的开口。线圈单元通过跨越固定铁心的两个相对端部的周边和可动铁芯而被布置，并且被存储和布置成围绕两个相对端部的周边区域。在壳体中，可滑动地保持可动芯体的另一个轴向端部的可动铁芯保持部分22c与保持线圈单元的线圈保持部分22b的外端的边缘轴向外侧延伸。因此，提高了壳体的加工性能，提高了电磁阀的组装加工性。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2007055455A Pumping device 有权
标题翻译：泵送装置
公开(公告)号：JP2007055455A
公开(公告)日：2007-03-08
申请号：JP2005243644
申请日：2005-08-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KURATA MASAKAZU , KUSATSUMI TAKUMI , NAKAKUKI YASUHITO , NAKADA MITSUAKI
IPC分类号： B62D5/07
CPC分类号： B62D5/065 , B62D5/062 , F04C11/00 , F04C14/12 , F15B1/26 , F15B2211/20515 , F15B2211/20561 , F15B2211/40515 , F15B2211/428 , F15B2211/6346 , F15B2211/7053
摘要： PROBLEM TO BE SOLVED: To provide a pumping device which simplifies a piping structure and arranging simple piping by storing a control valve in a pump housing. SOLUTION: The pumping device is equipped with a hydraulic power cylinder assisting a steering force, a reversible oil pump 10 which is installed inside the pump housing 1 and discharges hydraulic oil, an electric motor 11 driving the oil pump, a reservoir tank 12 which is installed in the pump housing and reserves the hydraulic oil supplied to the oil pump, and a first and second passages which are formed in the pump housing and selectively supplies and exhausts the discharging hydraulic oil of the oil pump to each oil chamber of the hydraulic power cylinder. A control valve controlling the flow of the hydraulic oil flowing the first and second passages is installed inside the pump housing. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种泵送装置，其通过将控制阀存储在泵壳体中来简化管道结构和布置简单的管道。解决方案：泵送装置配备有辅助转向力的液压动力缸，安装在泵壳1内并排出液压油的可逆油泵10，驱动油泵的电动机11，油箱 12，其安装在泵壳体中并且保留供应到油泵的液压油;以及第一和第二通道，其形成在泵壳体中并且选择性地将油泵的排出液压油供应到每个油室液压动力缸。控制流过第一和第二通道的液压油的流量的控制阀安装在泵壳内。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006335297A Power steering device 有权
标题翻译：动力转向装置
公开(公告)号：JP2006335297A
公开(公告)日：2006-12-14
申请号：JP2005165038
申请日：2005-06-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KURATA MASAKAZU , NAKADA MITSUAKI
IPC分类号： B62D5/07 , B62D5/06
摘要： PROBLEM TO BE SOLVED: To provide a power steering device capable of efficiently performing filling of an operation oil. SOLUTION: The power steering device is provided with a reversible pump provided with a pair of delivery port for feeding an oil pressure to both pressure chambers of a hydraulic power cylinder through first and second passages; a first one-way valve provided in the first passage and only allowing a flow of the operation oil from a reservoir tank side to the first passage side; a second one-way valve provided on the second passage and only allowing the flow of the operation oil from the reservoir tank side to the second passage side; a third one-way valve provided in the first passage and only allowing the flow of the operation oil from the first passage side to the reservoir tank side; a fourth one-way valve provided on the second passage and only allowing the flow of the operation oil from the second passage side to the reservoir tank side; a pump control means for rotating/driving the reversible pump in a direction for feeding the operation oil to the pressure chamber at the side where the reversible pump is stopped or the volume is reduced when filling work of the operation oil is performed. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供能够有效地进行操作油的填充的动力转向装置。动力转向装置设置有可逆泵，其具有一对输送口，用于通过第一和第二通道将油压供给到液压动力缸的两个压力室; 第一单向阀，设置在第一通道中，并且仅允许操作油从储存箱侧流到第一通道侧; 第二单向阀，设置在第二通道上，仅允许操作油从储存箱侧流到第二通道侧; 第三单向阀，其设置在第一通道中，并且仅允许操作油从第一通道侧流向储液罐侧; 第四单向阀，设置在第二通道上，仅允许操作油从第二通道侧流向储液罐侧; 泵控制装置，用于在可操作的泵停止的一侧向操作油供给的方向旋转/驱动可逆泵，或者在填充工作油的工作时进行体积的减少。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2006103513A Power steering device 审中-公开
标题翻译：动力转向装置
公开(公告)号：JP2006103513A
公开(公告)日：2006-04-20
申请号：JP2004293149
申请日：2004-10-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKADA MITSUAKI
IPC分类号： B62D5/07 , B62D5/09
摘要： PROBLEM TO BE SOLVED: To provide a power steering device capable of saving a cost for installing a pressure control means, and a space for installing the pressure control means, by installing one pressure control means even if the pressure control means is provided in each of discharging directions of a two-way pump. SOLUTION: The power steering device comprises a hydraulic power cylinder assisting a steering force of a steering mechanism coupled to a steering wheel, a reversible pump equipped with a pair of discharging ports supplying oil pressure to both pressure chambers of the hydraulic power cylinder through first and second passages, a connecting passage connected to the first and second passages, a pressure control means connected to the connecting passage, and a selector provided in the connecting passage, and switching communication and interception between the first passage and the pressure control means and communication and interception between the second passage and the pressure control means. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种能够节省用于安装压力控制装置的成本的动力转向装置和用于安装压力控制装置的空间，即使设置了压力控制装置，也安装一个压力控制装置在双向泵的排出方向。解决方案：动力转向装置包括一个液压动力缸，其辅助与方向盘相连接的转向机构的转向力;一个可逆泵，其具有一对向液压动力缸的两个压力室供油压力的排放口通过第一和第二通道，连接到第一和第二通道的连接通道，连接到连接通道的压力控制装置和设置在连接通道中的选择器，并且在第一通道和压力控制装置之间切换连通和拦截以及第二通道和压力控制装置之间的通信和拦截。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JPS5328401A PICKUP ARM RETURNING DEVICE 失效
公开(公告)号：JPS5328401A
公开(公告)日：1978-03-16
申请号：JP10266476
申请日：1976-08-30
申请人： HITACHI LTD
发明人： SATOU KATSUYA , NAKADA MITSUAKI , SHIMIZU AKIRA
IPC分类号： G11B3/095
摘要： PURPOSE:Return operation is rapidly started by the revolutions of a cam gear by contacting and engaging an elastic bar to the engaging member on the cam gear for auto return through operation of an operating lever.

10. 发明专利

JPS5328402A ROTATIONAL NUMBER SE LECTOR OF RECORD PLAYERS 失效
公开(公告)号：JPS5328402A
公开(公告)日：1978-03-16
申请号：JP10266576
申请日：1976-08-30
申请人： HITACHI LTD
发明人： SATOU KATSUYA , SHIMIZU AKIRA , NAKADA MITSUAKI
IPC分类号： G11B19/27 , G11B19/26
摘要： PURPOSE:Assembling operations are facilitated gy forming a holder, a belt changing member and a driving member by synthetic resin and so constituting these that these are mutually engaged.

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