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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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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：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：US20080145259A1
公开(公告)日：2008-06-19
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
IPC分类号： F01C19/00
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：US07325645B2
公开(公告)日：2008-02-05
申请号：US11076099
申请日：2005-03-09
IPC分类号： B62D5/06
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.
摘要翻译： 第一流体通道从液压泵的第一出口/入口延伸到动力缸的第一工作室，并且第二流体通道从泵的第二出口/入口延伸到功率的第二工作室 圆筒。 开关系统根据方向盘的转向方向切换第一和第二出口/入口的作用。 流量控制机构分别与第一和第二流体通道结合，从而适当地执行从液压泵到第一或第二工作室以及反之亦然的液压流体的受控流动，从而为司机提供舒适的转向感。 可以在第一和第二流体通道之间设置旁路装置，以处理当液压泵处于不工作状态时将残留在第一或第二工作室中的残余压力。
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公开(公告)号：US06880668B2
公开(公告)日：2005-04-19
申请号：US10134489
申请日：2002-04-30
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.
摘要翻译： 第一流体通道从液压泵的第一出口/入口延伸到动力缸的第一工作室，并且第二流体通道从泵的第二出口/入口延伸到功率的第二工作室 圆筒。 开关系统根据方向盘的转向方向切换第一和第二出口/入口的作用。 流量控制机构分别与第一和第二流体通道结合，从而适当地执行从液压泵到第一或第二工作室以及反之亦然的液压流体的受控流动，从而为驾驶员提供舒适的转向感。 可以在第一和第二流体通道之间设置旁路装置，以处理当液压泵处于不工作状态时将残留在第一或第二工作室中的残余压力。
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公开(公告)号：US20060254850A1
公开(公告)日：2006-11-16
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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公开(公告)号：US06568499B2
公开(公告)日：2003-05-27
申请号：US09986038
申请日：2001-11-07
IPC分类号： B62D508
CPC分类号： B62D5/065 , B62D5/06 , B62D5/30 , F15B2211/20561 , F15B2211/3051
摘要： A power steering system is provided which comprises a bypass conduit connecting between first and second communication conduits and having bypass conduit ports. A pair of valves disposed in the bypass conduit for selectively opening and closing the bypass conduit ports in response to the pressure fluid from the pressure source. The valves are adapted to provide communication between the first and second communication conduits when the hydraulic pressure source is inoperative.
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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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