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1. 发明专利

JP2005096729A Power steering device and its controlling method 有权
标题翻译：动力转向装置及其控制方法
公开(公告)号：JP2005096729A
公开(公告)日：2005-04-14
申请号：JP2004037705
申请日：2004-02-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SASAKI MITSUO , YOKOTA TADAHARU , SAKAKI TOSHIMITSU , HIRAMOTO MICHIYA
IPC分类号： B62D6/00 , B62D5/065 , B62D5/07 , B62D5/30 , B62D101/00 , B62D113/00 , B62D119/00 , B62D127/00 , B62D137/00
CPC分类号： B62D5/0481 , B62D5/065 , B62D5/30
摘要： PROBLEM TO BE SOLVED: To provide a power steering device capable of generating a sufficient assist force using a backup mechanism when an oil pressure feeding mechanism goes in failure. SOLUTION: The power steering device is equipped with a hydraulic power cylinder 5 to assist the steering force of a rack-pinion mechanism 4 and a first oil pressure feeding mechanism 8 consisting of a first trochoid pump 23 and a first electric motor 24 for feeding the oil pressure selectively via a first 6 and a second passage 7. When the first oil pressure feeding mechanism has gone in failure, a second oil pressure feeding mechanism 11 feeds the working oil pressure to the two oil pressure chambers selectively from a third 9 and a fourth passage 10 in conformity to the command signal given by a control unit 14. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种当油压给料机构失效时能够使用后备机构产生足够的辅助力的动力转向装置。解决方案：动力转向装置配备有用于辅助齿条小齿轮机构4的转向力的液压动力缸5和由第一次摆线泵23和第一电动机24组成的第一供油机构8 用于经由第一通道6和第二通道7选择性地供给油压。当第一供油机构失效时，第二供油机构11选择性地将工作油压力从第三油压供给机构 9和第四通道10，其符合由控制单元14给出的命令信号。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2008149868A Oil pump and power steering device 有权
标题翻译：油泵和动力转向装置
公开(公告)号：JP2008149868A
公开(公告)日：2008-07-03
申请号：JP2006339361
申请日：2006-12-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAKUKI YASUHITO , SAKAKI TOSHIMITSU
IPC分类号： B62D5/07 , B62D5/04
摘要： PROBLEM TO BE SOLVED: To provide an oil pump etc. capable of easily securing the accuracy of the clearance between both teeth of an outer rotor and an inner rotor. SOLUTION: In this oil pump 1, a cam ring 23 is arranged to be gripped and held between a pump body 21 and a cover member 22 provided in a butted state which are integrally connected with a plurality of bolts 20. Adopting a structure of independently fixing the cam ring 23 to the pump body 21 with the small diameter bolts 31, 31 separately from the joint fastening and fixing to the cover member 22 with the bolts 20 so as to fix the cam ring 23 to the pump body 21 beforehand in mounting the pump can arrange the cam ring 23 in a proper diameter direction and at a proper position without depending on the processing accuracy of these components. By this, the oil pump having a stable ejection characteristic can be obtained, and the steering feeling of the power steering device can be improved. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够容易地确保外转子和内转子的两个齿之间的间隙的精度的油泵等。解决方案：在该油泵1中，凸轮环23被布置成被夹持并保持在泵体21和与多个螺栓20一体连接的对接状态的盖构件22之间。采用使用小直径螺栓31,31独立地将凸轮环23固定到泵体21的结构，与使用螺栓20紧固固定到盖构件22的接头分开，以将凸轮环23固定到泵体21 预先安装泵可以将凸轮环23布置在适当的直径方向和适当位置，而不依赖于这些部件的加工精度。由此，能够获得具有稳定喷射特性的油泵，能够提高动力转向装置的转向感。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2007099038A Power steering device 审中-公开
标题翻译：动力转向装置
公开(公告)号：JP2007099038A
公开(公告)日：2007-04-19
申请号：JP2005290069
申请日：2005-10-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHASHI SATORU , SAKAKI TOSHIMITSU , YOKOTA TADAHARU , YAMANO KAZUYA , HONBO MICHIKO , SAKAI MASANORI
IPC分类号： B62D5/30 , B62D5/07
CPC分类号： B62D5/064 , B62D5/065 , H01M10/125
摘要： PROBLEM TO BE SOLVED: To provide a power steering device for stabilizing driving of a motor even when being switched from a non-steering state to a steering state. SOLUTION: This power steering device comprises a hydraulic power cylinder for assisting a steering force of a steering mechanism, a hydraulic pump for supplying a hydraulic pressure driving the hydraulic power cylinder, a motor driving the hydraulic pump, a power source, and a control unit controlling outputs of the motor. The control unit is configured to control an assist steering force of the hydraulic power cylinder by controlling the power supplied from the power source to the motor based on a steering force acting on the steering mechanism and a steering direction. The power source comprises a thin belt-like positive electrode plate, a thin belt-like negative electrode plate, and a belt-like separator arranged between the positive electrode plate and the negative electrode plate. The positive electrode plate, the negative electrode plate, and the separator are constituted by a lead battery wound and immersed in electrolyte. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于稳定马达的驱动的动力转向装置，即使当从非转向状态切换到转向状态时。解决方案：该动力转向装置包括用于辅助转向机构的转向力的液压动力缸，用于提供驱动液压动力缸的液压的液压泵，驱动液压泵的电动机，动力源和控制单元，控制电动机的输出。控制单元构成为通过基于作用在转向机构上的转向力和转向方向控制从电源向电动机供给的动力来控制液压动力缸的辅助转向力。电源包括薄带状正极板，薄带状负极板和布置在正极板和负极板之间的带状隔板。正极板，负极板和隔板由缠绕并浸入电解质中的铅电池构成。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2005170071A Fixing structure for reservoir tank 有权
标题翻译：储水罐固定结构
公开(公告)号：JP2005170071A
公开(公告)日：2005-06-30
申请号：JP2003408084
申请日：2003-12-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKAKI TOSHIMITSU , ISHII SHOZO
IPC分类号： B62D5/07
摘要： PROBLEM TO BE SOLVED: To provide a fixing structure for a reservoir tank capable of rigidly fixing the reservoir tank and a pump housing. SOLUTION: The fixing structure for the reservoir tank is constituted by the pump housing 3 having an approximately cylindrical first mounting part 4; the reservoir tank 2 having an approximately cylindrical second mounting part 10 and covering the first mounting part 4; and a fastening band 11 for fastening the pump housing 3 and the reservoir tank 2. Engagement parts 7, 12 constituted by approximately semi-spherical recessed parts 7a, 7b (12c) and projections 12a, 12b (7c) are formed on opposed surfaces of a cylindrical outer peripheral surface of the first mounting part 4 and a cylindrical inner peripheral surface of the second mounting part 10 respectively. The engagement part 7 of the first mounting part 4 is provided so as to be offset to the pump housing 3 side relative to the engagement part 12 of the second mounting part 10. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够刚性地固定储存箱和泵壳体的储存箱的固定结构。解决方案：储罐的固定结构由具有大致圆筒形的第一安装部分4的泵壳体3构成; 储存罐2具有大致圆筒形的第二安装部分10并覆盖第一安装部分4; 以及用于紧固泵壳体3和储存箱2的紧固带11，由大致半球状的凹部7a，7b（12c）和突起12a，12b（7c）构成的接合部7,12形成在第一安装部4的圆筒状的外周面和第二安装部10的圆筒状的内周面。第一安装部分4的接合部分7相对于第二安装部分10的接合部分12设置成相对于泵壳体3侧偏移。（C）2005年，JPO和NCIPI

5. 发明专利

JP2006315429A Power steering device 有权
标题翻译：动力转向装置
公开(公告)号：JP2006315429A
公开(公告)日：2006-11-24
申请号：JP2005136965
申请日：2005-05-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKAKI TOSHIMITSU , KURATA MASAKAZU , TAKAHASHI SATORU
IPC分类号： B62D5/07 , B62D6/00 , B62D101/00 , B62D119/00 , B62D127/00
CPC分类号： B62D5/065 , B62D5/064
摘要： PROBLEM TO BE SOLVED: To provide a power steering device improved in steering feeling by improving responsiveness by driving a motor in a region with efficiency. SOLUTION: This power steering device is provided with a hydraulic power cylinder, a first passage connected to a first hydraulic chamber, a second passage connected to a second hydraulic chamber, a reversible pump provided with a pair of discharging ports connected to the first passage and second passage to supply hydraulic pressure to the hydraulic power cylinder, a motor connected to the reversible pump to normally/reversely rotate the pump, a steering load detection means for detecting or estimating steering load of a steering wheel for steering and controlling a steering wheel, and a motor control means for outputting a driving signal to the motor to generate desired hydraulic pressure in the motor based on the steering load. In the device, discharge amount per rotation of the reversible pump is made ≤5 cc. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过在有效区域中驱动马达来提高响应性而提高转向感觉的动力转向装置。解决方案：该动力转向装置设置有液压动力缸，连接到第一液压室的第一通道，连接到第二液压室的第二通道，设置有连接到第二液压室的一对排出口的可逆泵第一通道和第二通道，以向液压动力缸供应液压;连接到可逆泵以正常/反向旋转泵的马达;转向载荷检测装置，用于检测或估计用于转向和控制的方向盘的转向载荷; 方向盘，以及马达控制装置，用于将驱动信号输出到马达，以基于转向载荷产生马达中的期望液压。在该装置中，可逆泵的旋转量为≤5cc。版权所有（C）2007，JPO＆INPIT

6. 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

7. 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

8. 发明专利

JP2008230324A Power steering system 审中-公开
标题翻译：动力转向系统
公开(公告)号：JP2008230324A
公开(公告)日：2008-10-02
申请号：JP2007070002
申请日：2007-03-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIRAI TAKAYUKI , SAKAKI TOSHIMITSU
IPC分类号： B62D5/04 , B62D5/06
摘要： PROBLEM TO BE SOLVED: To provide a power steering system capable of restraining deterioration of steering feeling due to vibration of a steering shaft transmitted to a steering wheel.
SOLUTION: This power steering system is provided with: a housing 2; an input shaft 3 stored in the housing 2 free to rotate and provided with the steering wheel; an output shaft 4 stored in the housing 2 free to rotate and connected to the input shaft 3 through a torsion bar 5 and; a first sliding resistance providing means 19 to provide the input shaft 3 with sliding resistance and a second sliding resistance providing means 20 to provide the output shaft 4 with the sliding resistance.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制由于传递到方向盘的转向轴的振动引起的转向感的劣化的动力转向系统。解决方案：该动力转向系统具有：壳体2; 存储在壳体2中的自由旋转并设置有方向盘的输入轴3; 存储在壳体2中的输出轴4通过扭杆5自由地旋转并连接到输入轴3; 为输入轴3提供滑动阻力的第一滑动阻力提供装置19和向输出轴4提供滑动阻力的第二滑动阻力提供装置20。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008151019A Oil pump and method of assembling the same 有权
标题翻译：油泵及其组装方法
公开(公告)号：JP2008151019A
公开(公告)日：2008-07-03
申请号：JP2006339360
申请日：2006-12-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAKUKI YASUHITO , KIDOKORO KANAME , ABE TETSUO , SAKAKI TOSHIMITSU , SASAKI MITSUO , KURATA MASAKAZU
IPC分类号： F04C15/00 , F04C2/10
CPC分类号： F04C2/102 , F04C2/086 , F04C2230/60 , Y10T29/49236 , Y10T29/49895
摘要： PROBLEM TO BE SOLVED: To provide an oil pump and the like that can easily ensure an accuracy of a clearance between gears on an outer rotor and an inner rotor, while simplifying a structure of the oil pump. SOLUTION: In the oil pump 1, a cam ring 23 is fixed so as to be sandwiched between a pump body 21 and a covering member 22 provided facing to each other. Inside the cam ring, an inner rotor 25 fixed on an end side of a driving shaft 26 inserted in the pump body in the axial direction, and an outer rotor 24 fitted inside the cam ring and having inner gear teeth 24a engaged with outer gear teeth 25a of the inner rotor, are accommodatingly arranged. When this oil pump is assembled, the cam ring is aligned by a fixture 31 determining a relative position of the cam ring with respect to the pump body with reference to a position of a shaft inserting hole 21a through which the driving shaft is inserted, and thereby ensuring an accuracy of assembling of the cam ring. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够容易地确保外转子和内转子之间的齿轮间隙的精度的油泵等，同时简化油泵的结构。解决方案：在油泵1中，凸轮环23被固定以夹在泵体21和彼此相对设置的覆盖部件22之间。在凸轮环的内部，固定在沿轴向插入泵主体的驱动轴26的端侧的内转子25和装配在凸轮环内的具有与外齿轮齿啮合的内齿轮24a的外转子24 内转子25a的容纳地配置。当该油泵组装时，凸轮环通过固定装置31对准，固定装置31根据驱动轴插入的轴插入孔21a的位置确定凸轮环相对于泵体的相对位置;以及从而确保凸轮环的组装精度。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2006029276A Oil pump 有权
标题翻译：油泵
公开(公告)号：JP2006029276A
公开(公告)日：2006-02-02
申请号：JP2004212398
申请日：2004-07-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAKUKI YASUHITO , SAKAKI TOSHIMITSU
IPC分类号： F04C15/00 , F04C2/10 , F04C2/34 , F04C2/344
CPC分类号： F04C2/10 , F04C15/0023 , F05C2201/0439 , F05C2201/903 , F05C2251/046
摘要： PROBLEM TO BE SOLVED: To enhance the efficiencies of manufacturing and assembling works and achieve cost-reduction by simplifying the structure of the device, while inhibiting leak of working fluid. SOLUTION: A 1st housing member 1 and a 2nd housing member 2 are formed of an aluminum alloy having a high coefficient of linear expansion, and each cam ring 3 is formed of a cast iron having a low coefficient of linear expansion. The can ring is fit to the periphery of projected parts 8, 11 of both the housing members, and rotatably holds internal and external gears 13, 14 driven by a drive shaft 15 in the inside. By thermal expansion, a 1st and a 2nd contact faces 8a, 11a respectively of both the projected parts reduce the side clearance between both sides of both the contact faces and the internal and external gears to inhibit leak of the working fluid from the clearance. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过简化装置的结构，同时抑制工作流体的泄漏，提高制造和组装工作的效率并实现成本降低。解决方案：第一壳体构件1和第二壳体构件2由具有高线性膨胀系数的铝合金形成，并且每个凸轮环3由具有低线性膨胀系数的铸铁形成。罐环装配到两个壳体构件的突出部分8,11的周边，并且可旋转地保持由驱动轴15在内部驱动的内部和外部齿轮13,14。通过热膨胀，两个突出部分的第一和第二接触面8a，11a分别减小了两个接触面和内部和外部齿轮的两侧之间的侧向间隙，以防止工作流体从间隙泄漏。版权所有（C）2006，JPO＆NCIPI

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