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公开(公告)号：US07959422B2
公开(公告)日：2011-06-14
申请号：US11954910
申请日：2007-12-12
申请人： Yasuhito Nakakuki , Kaname Kidokoro , Tetsuo Abe , Toshimitsu Sakaki , Mitsuo Sasaki , Masakazu Kurata
发明人： Yasuhito Nakakuki , Kaname Kidokoro , Tetsuo Abe , Toshimitsu Sakaki , Mitsuo Sasaki , Masakazu Kurata
CPC分类号： F04C2/102 , F04C2/086 , F04C2230/60 , Y10T29/49236 , Y10T29/49895
摘要： An oil pump including a first housing having a rotation shaft insertion hole, a cam ring, a pump element, a rotation shaft rotatably extending through the rotation shaft insertion hole, a second housing disposed on the cam ring, wherein the cam ring is placed in a position relative to the rotation shaft insertion hole of the first housing by using a jig, and the cam ring includes a clamped portion that is clamped by a cam ring holding device, while the first housing and the second housing are fixed to each other after placing the cam ring in the position relative to the rotation shaft insertion hole by using the jig. Alternatively, the oil pump including a fixing means for fixing the cam ring to the pump body instead of the clamped portion.
摘要翻译： 一种油泵，包括具有旋转轴插入孔的第一壳体，凸轮环，泵元件，可旋转地延伸穿过旋转轴插入孔的旋转轴，设置在凸轮环上的第二壳体，其中， 通过使用夹具相对于第一壳体的旋转轴插入孔的位置，并且凸轮环包括被凸轮环保持装置夹紧的夹持部，同时第一壳体和第二壳体彼此固定，之后，第一壳体和第二壳体彼此固定， 通过使用夹具将凸轮环相对于旋转轴插入孔放置在相对位置。 或者，油泵包括用于将凸轮环固定到泵体而不是夹紧部分的固定装置。
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公开(公告)号：US20070144820A1
公开(公告)日：2007-06-28
申请号：US11643806
申请日：2006-12-22
申请人： Masakazu Kurata , Toshimitsu Sakaki
发明人： Masakazu Kurata , Toshimitsu Sakaki
IPC分类号： B62D5/00
摘要： A power steering apparatus includes a power cylinder including first and second pressure chambers, a hydraulic pump including first and second discharge ports, the hydraulic pump being arranged to supply a hydraulic pressure selectively to the first and second pressure chambers; first and second hydraulic passages connecting the first and second pressure chambers and the first and second discharge ports; a motor arranged to drive the hydraulic pump; a motor control section configured to output a drive signal to the motor; a reservoir tank storing a hydraulic fluid; first and second bypass passages connecting the first and second hydraulic passages and the reservoir tank; first and second bypass valves arranged to open and close the first and second bypass passages; and first and second flow rate restricting sections disposed in the first and second bypass passages, and arranged to decrease flow rates of the first and second bypass passages.
摘要翻译： 一种动力转向装置，包括具有第一和第二压力室的动力缸，包括第一和第二排出口的液压泵，所述液压泵设置成选择性地向第一和第二压力室供应液压; 连接第一和第二压力室与第一和第二排出口的第一和第二液压通道; 布置成驱动液压泵的马达; 马达控制部，被配置为向马达输出驱动信号; 存储液压油的储存罐; 连接第一和第二液压通道和储存箱的第一和第二旁路通道; 布置成打开和关闭第一和第二旁通通道的第一和第二旁通阀; 以及设置在第一和第二旁路通路中的第一和第二流量限制部分，并且被布置成减小第一和第二旁通通路的流量。
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公开(公告)号：US07128182B2
公开(公告)日：2006-10-31
申请号：US10760347
申请日：2004-01-21
申请人： Mizuo Otaki , Masakazu Kurata
发明人： Mizuo Otaki , Masakazu Kurata
IPC分类号： B62D5/065
摘要： A power steering system includes first and second drain passages connected to the first and second passages, respectively, and first and second passage switching valves arranged at connections of the first and second drain passages and the first and second passages, respectively. When a hydraulic pump operates to discharge the hydraulic pressure to the first passage, the first passage switching valve provides fluid communication between pump-side and cylinder-side portions of the first passage and closes off the first drain passage. And when the hydraulic pump stops, the first switching valve provides fluid communication between the cylinder-side portion of the first passage and the first drain passage.
摘要翻译： 动力转向系统包括分别连接到第一和第二通道的第一和第二排放通道，以及分别设置在第一和第二排水通道以及第一和第二通道的连接处的第一和第二通道切换阀。 当液压泵操作以将液压排出到第一通道时，第一通道切换阀在第一通道的泵侧和气缸侧部分之间提供流体连通并且封闭第一排水通道。 并且当液压泵停止时，第一切换阀提供第一通道的气缸侧部分和第一排水通道之间的流体连通。
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公开(公告)号：US20060210417A1
公开(公告)日：2006-09-21
申请号：US11283820
申请日：2005-11-22
申请人： Masakazu Kurata , Takumi Hisazumi , Mizuo Otaki
发明人： Masakazu Kurata , Takumi Hisazumi , Mizuo Otaki
CPC分类号： F04C2/102
摘要： An inscribed gear pump that provides a housing, an outer rotor formed with a plurality of inner teeth continuously at an internal circumference thereof which is rotatably provided to an inside of the housing, an inner rotor formed with a plurality of outer teeth continuously at an external circumference thereof which is rotatably provided to an inside of the outer rotor, drive shaft rotatably drives the inner rotor. Volume chambers which are formed between the inner teeth and the outer teeth. A suction port is open at an area of the volume chamber increase in a volume gradually. A discharge port is open at an area of the volume chamber that decreases in a volume gradually. An area between a start portion of the suction port and an end portion of the discharge port have contact portions of the inner teeth and outer teeth, where the number is an integer more than 2 at a portion of a volume chamber having a maximum volume of a side of a trap portion.
摘要翻译： 一种内齿轮泵，其提供壳体，外转子，其在内周连续地形成有多个内齿，所述外转子可旋转地设置在所述壳体的内部，内转子，其在外部连续形成有多个外齿 可旋转地设置在外转子内侧的驱动轴可旋转地驱动内转子。 形成在内齿和外齿之间的容积室。 吸入口在体积室的区域开口逐渐增加。 排出口在容积室的逐渐减小的区域开口。 吸入口的开始部分和排出口的端部之间的区域具有内齿和外齿的接触部分，其中数量是大于2的整数，在具有最大体积的容积室的部分 陷阱部分的一侧。
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公开(公告)号：US20060120201A1
公开(公告)日：2006-06-08
申请号：US11267195
申请日：2005-11-07
申请人： Masakazu Kurata , Mitsuaki Hayashi
发明人： Masakazu Kurata , Mitsuaki Hayashi
IPC分类号： G11C8/00
CPC分类号： G11C17/12
摘要： According to a conventional semiconductor memory device, in a replica circuit composed of a plurality of dummy bit lines, an off leakage current of a transistor has been significantly increased with the advance of a semiconductor microfabrication technology, so that the dummy bit line has not been able to be charged to a desired potential due to the off leakage current when charging. As a result of this, since a charging period or a discharging period of the dummy bit line is also different from a desired period, the optimal operation timing may not be set. In a dummy memory cell array, in order to connect a drain region 21 and a first dummy bit line 25, the first dummy bit line 25 is connected via contact and via holes 28 through 30 and metal electrodes 23 and 24, while a second dummy bit line 46 does not contact to a drain region 47.
摘要翻译： 根据传统的半导体存储器件，在由多个虚拟位线构成的复制电路中，随着半导体微细加工技术的发展，晶体管的截止漏电流已经显着增加，使得虚位线未被 能够在充电时由于断开的漏电流而被充电到期望的电位。 结果，由于虚拟位线的充电期间或放电期间也与期望的周期不同，所以可以不设定最佳的动作时机。 在虚拟存储单元阵列中，为了连接漏区21和第一虚位线25，第一虚位线25经由接触和通孔28至30和金属电极23和24连接，而第二虚位 位线46不与漏极区域47接触。
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公开(公告)号：US20060029509A1
公开(公告)日：2006-02-09
申请号：US11189830
申请日：2005-07-27
CPC分类号： F04C2/102 , F04C15/0042
摘要： A trochoid pump for supplying hydraulic fluid to a power cylinder in a power steering system. The trochoid pump includes a housing formed therein with an annular operating chamber. Outer rotor having internal teeth and inner rotor having external teeth are rotatably accommodated in the operating chamber in such a manner that the internal and external teeth are engageable with each other. A driving shaft is provided for rotationally driving the inner rotor. A low pressure passage is opened to a clearance between an outer peripheral surface of the outer rotor and an inner peripheral surface of the operating chamber within a discharge region at side of an engaging section at which the volume of the pump chamber is the minimum so as to release a high pressure applied to the outer peripheral surface of the outer rotor, to a low pressure side.
摘要翻译： 用于将液压流体供应到动力转向系统中的动力缸的次摆线泵。 次摆线泵包括其中形成有环形操作室的壳体。 具有内齿的外转子和具有外齿的内转子以能够彼此接合的方式可旋转地容纳在操作室中。 提供用于旋转地驱动内转子的驱动轴。 低压通道打开到外转子的外周表面与操作室的内周表面之间的间隙，在泵室的体积最小的接合部分的排出区域内，以便 以释放施加到外转子的外周面的高压到低压侧。
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公开(公告)号：US20060002212A1
公开(公告)日：2006-01-05
申请号：US11025138
申请日：2004-12-30
申请人： Shuji Nakaya , Mitsuaki Hayashi , Masakazu Kurata
发明人： Shuji Nakaya , Mitsuaki Hayashi , Masakazu Kurata
IPC分类号： G11C7/00
CPC分类号： G11C17/12 , G11C7/1051 , G11C7/106 , G11C7/1069 , G11C17/14 , G11C29/1201 , G11C29/14 , G11C2029/1202 , G11C2029/1204
摘要： An output end and an inverted output end of a latch circuit that is connected to an output buffer circuit are switched with each other, and thereby, the relationship between the data of “0” or “1” and the drain of a memory cell is connected or not connected to a bit line is changed. In addition, an input of a sense amplifier is fixed at the grounding potential by means of a test control signal, and thereby, positive logic is confirmed in the case where the output of the output buffer circuit is “L,” and negative logic is confirmed in the case where the output of the output buffer circuit is “H.”
摘要翻译： 连接到输出缓冲电路的锁存电路的输出端和反相输出端彼此切换，由此“0”或“1”的数据与存储单元的漏极之间的关系为 连接或未连接到位线被更改。 此外，读出放大器的输入通过测试控制信号固定在接地电位，从而在输出缓冲电路的输出为“L”的情况下确认正逻辑，而负逻辑为 在输出缓冲电路的输出为“H”的情况下确认。
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公开(公告)号：US20050150710A1
公开(公告)日：2005-07-14
申请号：US11076099
申请日：2005-03-09
摘要： A first fluid passage extends from a first outlet/inlet port of a hydraulic pump to a first work chamber of a power cylinder, and a second fluid passage extends from a second outlet/inlet port of the pump to a second work chamber of the power cylinder. A switch system switches the role of the first and second outlet/inlet ports in accordance with a turning direction of a steering wheel. Flow control mechanisms are respectively incorporated with the first and second fluid passages, so that a controlled flow of hydraulic fluid from the hydraulic pump to the first or second work chamber and vice versa are appropriately carried out thereby providing the driver with a comfortable steering feeling. A bypass arrangement may be provided between the first and second fluid passages to deal with a residual pressure that would be remained in the first or second work chamber when the hydraulic pump is under inoperative condition.
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公开(公告)号：US07722342B2
公开(公告)日：2010-05-25
申请号：US11684085
申请日：2007-03-09
申请人： Isamu Tsubono , Mitsuo Sasaki , Toru Takahashi , Masaaki Busujima , Masakazu Kurata , Yasuhito Nakakuki
发明人： Isamu Tsubono , Mitsuo Sasaki , Toru Takahashi , Masaaki Busujima , Masakazu Kurata , Yasuhito Nakakuki
IPC分类号： F01C1/02
CPC分类号： F04C2/102 , F04C2/084 , F04C2/18 , F04C15/0019 , F04C15/0026 , F04C2230/91
摘要： In order to realize cost reduction in a gear pump apparatus by reducing form accuracy of a gear while securing pump performance, a running-in coating is provided on a tooth sliding contact portion when forming a confinement area in at least one of gears of the gear pump apparatus. By this feature, the running-in coating is gradually worn away and deformed according to rotary drive of the pump, and thus it is possible to obtain an optimal gear form in meshing combinations of the gears. Further, it is possible to reduce leakage inside the pump to secure the pump performance even if the form accuracy of the gear is reduced for the sake of the cost reduction.
摘要翻译： 为了通过在确保泵的性能的同时降低齿轮的形状精度来实现齿轮泵装置的成本降低，当在齿轮的齿轮中的至少一个齿轮中形成限制区域时，在齿滑动接触部分上设置进入涂层 泵装置。 通过该特征，随着泵的旋转驱动，流入式涂层逐渐磨损和变形，从而可以获得齿轮的啮合组合中的最佳齿轮形状。 此外，为了降低成本，即使齿轮的形状精度降低，也可以减小泵内部的泄漏以确保泵的性能。
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公开(公告)号：US07665569B2
公开(公告)日：2010-02-23
申请号：US11430085
申请日：2006-05-09
IPC分类号： B62D5/06
摘要： A power steering system includes a hydraulic power cylinder having a first and a second hydraulic chambers, for assisting a steering force of a steering mechanism, a first and a second oil passages respectively connected to the first and second hydraulic chambers, a reversible pump discharging operating oil and providing oil pressure to the hydraulic power cylinder through the first and second oil passages, and a motor connected to the reversible pump and rotating the reversible pump in normal and reverse directions. A steering load detection unit detects a steering load of a steering wheel for steering of the steered road wheels, and a motor control unit outputs a control signal to the motor to bring an actual oil pressure generated by the reversible pump closer to a desired oil pressure determined based on the detected steering load. A discharge amount per rotation of the reversible pump is smaller than or equal to 5 cc.
摘要翻译： 动力转向系统包括具有第一和第二液压室的液压动力缸，用于辅助转向机构的转向力，分别连接到第一和第二液压室的第一和第二油路， 并通过第一和第二油路向液压动力缸提供油压，以及连接到可逆泵并且沿正向和反向旋转可逆泵的马达。 转向负载检测单元检测用于转向车轮的转向的方向盘的转向负载，电动机控制单元向电动机输出控制信号，以使由可逆泵产生的实际油压更接近期望的油压 基于检测到的转向负载确定。 可逆泵的每旋转的排出量小于或等于5cc。
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