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1. 发明授权

US4798050A Control system for hydraulic tandem pump in motor vehicle 失效
标题翻译：机动车液压串联泵控制系统
公开(公告)号：US4798050A
公开(公告)日：1989-01-17
申请号：US60525
申请日：1987-06-11
申请人： Keiichi Nakamura , Tsuneo Tanaka , Yoshiharu Inaguma , Harunori Shiratori
发明人： Keiichi Nakamura , Tsuneo Tanaka , Yoshiharu Inaguma , Harunori Shiratori
IPC分类号： F04B49/06 , B62D5/07 , B62D5/32 , F01P7/04 , F04B49/00 , F16D31/00
CPC分类号： F01P7/044 , B62D5/07 , B62D5/32
摘要： A control system for a hydraulic tandem pump assembly including a primary pump for supplying fluid under pressure to a power-assisted steering device and a secondary pump for supplying fluid under pressure to a hydraulic motor of an engine cooling fan, which pumps are mounted on a common drive shaft for rotation therewith. The control system includes an electrically operated flow quantity control valve disposed within a communication passage between the secondary pump and the hydraulic motor to bypass fluid under pressure discharged from the secondary pump into an inlet passage connecting a fluid reservoir to the secondary pump, a temperature sensor arranged to detect an ambient temperature of a prime engine of the vehicle for producing therefrom an output signal indicative of the ambient temperature, and an electric control apparatus connected to the sensor to control an electric current applied to the control valve in response to the output signal from the sensor in such a manner that the control valve is conditioned to bypass a large part or the entirety of fluid under pressure discharged from the secondary pump into the inlet passage when the ambient temperature of the engine is below a predetermined value.
摘要翻译：一种用于液压串联泵组件的控制系统，包括用于将压力下的流体供应到动力辅助转向装置的主泵和用于将压力下的流体供应到发动机冷却风扇的液压马达的次级泵，所述泵安装在公共驱动轴与其一起旋转。控制系统包括电动流量控制阀，其设置在次级泵和液压马达之间的连通通道内，以将从次级泵排出的压力旁通的流体连接到将流体储存器连接到次级泵的入口通道，温度传感器布置成检测车辆的主引擎的环境温度，从而产生指示环境温度的输出信号，以及连接到传感器的电气控制装置，以响应于输出信号控制施加到控制阀的电流从传感器以使发动机的环境温度低于预定值时控制阀被调节为绕过从次级泵排出的压力的大部分或全部流体进入入口通道。

2. 发明授权

US5226802A Variable-displacement vane pump 失效
标题翻译：可变位移泵
公开(公告)号：US5226802A
公开(公告)日：1993-07-13
申请号：US910234
申请日：1992-07-09
申请人： Keiichi Nakamura , Yoshiharu Inaguma , Hideya Kato
发明人： Keiichi Nakamura , Yoshiharu Inaguma , Hideya Kato
IPC分类号： F01C21/08 , F04C14/26
CPC分类号： F04C14/26 , F01C21/0863
摘要： A variable-displacement vane pump apparatus is composed of a pump part and a switching valve. The pump part is comprised of a housing, a cam ring, a rotor, plural vanes, side plates, two pairs of intake and exhaust ports formed on the side plates, discharge pressure chambers connecting with the discharge ports, and an intake chamber connected with the intake ports. The pump part is divided into first and second pump portions, and only one of the pump portions is activated by the operation of the switching valve when the load pressure is low. Under such condition, the fluid discharged from the particular pump portion is returned to its intake port. Also, the flow rate of the operation fluid discharged from the pump is adjusted by the flow control valve by returning part of pressurized fluid into the inlet ports. A fluid supplied from a reservoir is energized two times by supercharge effect utilizing the returned fluid from the switching valve and the returned fluid from the flow control valve. The vane pump is further provided with a special arrangement to lower the pressure at the bottoms of slits receiving the vanes at the time period when the slits located in the particular pump portion, thereby reducing the energy loss.

3. 发明授权

US4496288A Vane type pump with a variable capacity for power steering devices 失效
标题翻译：动力转向装置具有可变容量的叶片式泵
公开(公告)号：US4496288A
公开(公告)日：1985-01-29
申请号：US452136
申请日：1982-12-22
申请人： Keiichi Nakamura , Yoshiharu Inaguma , Yutaka Mori
发明人： Keiichi Nakamura , Yoshiharu Inaguma , Yutaka Mori
IPC分类号： F04C14/22 , F04B49/00 , F04C2/344
CPC分类号： F04C14/226
摘要： A vane type pump with a variable capacity for power steering devices is provided with a movable ring received and radially movable in a closed cylindrical bore of a pump housing. A spring acts on the movable ring to deflect the axis of the movable ring from the axis of a rotor, which is rotated to move vanes along an internal bore of the movable ring. A sealing pin and a valve element are provided at diametrically opposite sides of the movable ring and define first and second pressure chambers around the movable ring. The first pressure chamber receives pressurized fluid from a part of the internal bore of the movable ring and conducts the pressurized fluid into the second pressure chamber through a throttle, which is defined by the valve element and a part of a circumferential external surface of the movable ring. The throttle generates a pressure difference between the first and second pressure chambers, and the pressure difference acts on the movable ring to move the same against the force of the spring. The pump is further provided with a solenoid operated actuator for adjusting the position of the valve element, and a relief valve.
摘要翻译：具有用于动力转向装置的可变容量的叶片型泵设置有容纳在泵壳体的封闭圆柱形孔中并可径向移动的可移动环。弹簧作用在可动环上，以使可动环的轴线从转子的轴线偏转，该转子被旋转以沿着可动环的内孔移动叶片。密封销和阀元件设置在可动环的直径相对的两侧，并且围绕可移动环限定第一和第二压力室。第一压力室从可移动环的内孔的一部分接收加压流体，并且通过节流阀将加压流体传导到第二压力室中，所述节流阀由阀元件和活动的圆周外表面的一部分环。节气门在第一和第二压力室之间产生压力差，并且压力差作用在可动环上以相对于弹簧的力移动。泵还设置有用于调节阀元件的位置的电磁操作致动器和安全阀。

4. 发明授权

US4476529A Control system for a power steering device 失效
标题翻译：动力转向装置的控制系统
公开(公告)号：US4476529A
公开(公告)日：1984-10-09
申请号：US411349
申请日：1982-08-25
申请人： Keiichi Nakamura , Yutaka Mori , Yoshiharu Inaguma
发明人： Keiichi Nakamura , Yutaka Mori , Yoshiharu Inaguma
IPC分类号： B62D6/02 , B62D5/04 , B62D5/06 , B62D5/087 , B62D5/09 , B62D6/00
CPC分类号： B62D5/09
摘要： A control system for a power steering device of a vehicle, wherein the rotational angular position of a steering wheel, the vehicle driving speed and the steering torque applied to the steering wheel are detected and processed by a digital computer. The computer selects one of plural control values stored in a memory device based upon the detected steering torque and the detected vehicle speed and outputs the selected one of the control values along with solenoid selection data which is determined based upon the detected rotary angular position data. An electric current having a value corresponding to the selected one of the control values is applied from a solenoid drive circuit to one of a pair of solenoids, so that a four-way open center type solenoid valve having the solenoids controls the supply and exhaust of pressurized fluid to and away from a power cylinder of the power steering device in accordance with the detected vehicle driving speed and the detected steering torque.
摘要翻译：一种用于车辆的动力转向装置的控制系统，其中方向盘的旋转角度位置，车辆行驶速度和施加到方向盘的转向扭矩被数字计算机检测和处理。计算机基于检测到的转向转矩和检测到的车速选择存储在存储装置中的多个控制值中的一个，并输出所选择的一个控制值以及基于检测到的旋转角位置数据确定的电磁阀选择数据。具有对应于所选择的一个控制值的值的电流从螺线管驱动电路施加到一对螺线管中的一个，使得具有螺线管的四通开放式电磁阀控制供给和排出根据检测到的车辆行驶速度和检测到的转向扭矩将动力加压到动力转向装置的动力缸。

5. 发明授权

US06491130B1 Electric power steering apparatus 失效
标题翻译：电动助力转向装置
公开(公告)号：US06491130B1
公开(公告)日：2002-12-10
申请号：US09460414
申请日：1999-12-14
申请人： Susumu Honaga , Yoshiharu Inaguma , Osamu Watanabe , Yoshinori Suzuki
发明人： Susumu Honaga , Yoshiharu Inaguma , Osamu Watanabe , Yoshinori Suzuki
IPC分类号： B62D504
CPC分类号： B62D5/0421 , B62D5/0409 , F16H1/16 , Y10T74/19828
摘要： An electric power steering apparatus is composed of a wheel gear connected with a steering wheel, a worm shaft tooth-engaged with the wheel gear, and an electric motor rotatably driving the worm shaft in which a worm tooth portion of the worm shaft is formed with a compound lead. Further, the worm shaft is fixed in an axial direction by at least one locknut provided at a portion of a separate side of the electric motor. Further, one end of the worm shaft is rotatably supported through a ball bearing and is fixed by the locknut in the axial direction of the worm shaft, and the other end thereof is rotatably supported through another ball bearing or is fixed by a circlip through a disc-shaped spring in the axial direction. Furthermore, only respective outer rings of the ball bearings are further secured to a housing in which the worm shaft and the wheel gear are disposed.
摘要翻译：电动助力转向装置包括与方向盘连接的轮齿轮，与齿轮啮合的蜗杆轴，以及可旋转地驱动蜗杆轴的电动马达，蜗杆轴形成有蜗杆蜗杆部分复合铅。此外，蜗杆轴通过设置在电动机的分离侧的一部分的至少一个锁定螺母沿轴向固定。此外，蜗杆的一端通过球轴承可旋转地支撑，并且通过锁紧螺母沿蜗杆轴线方向固定，并且其另一端通过另一个滚珠轴承可旋转地支撑，或者通过卡环固定通过盘形弹簧在轴向上。此外，只有球轴承的相应的外圈进一步固定到设置有蜗杆轴和齿轮的壳体。

6. 发明授权

US4347048A Hydraulic pump for power steering 失效
标题翻译：动力转向液压泵
公开(公告)号：US4347048A
公开(公告)日：1982-08-31
申请号：US186843
申请日：1980-09-15
申请人： Minoru Kawabata , Susumu Honaga , Yoshiharu Inaguma
发明人： Minoru Kawabata , Susumu Honaga , Yoshiharu Inaguma
IPC分类号： F04C2/344 , F04C14/26 , F04C15/06 , F04B49/02 , F04B49/08
CPC分类号： F04C15/06 , F04C2/3446
摘要： A vane type hydraulic pump for use in a power steering apparatus comprising a pump housing receiving therein a non-rotatable cam ring and non-rotatable but axially slidable pressure plate and subplate. A pump rotor rotatable integrally with a drive shaft is received in an internal cam bore of the cam ring and, when rotated, delivers pressurized fluid to a discharge port connected to the power steering apparatus. The pressure plate and subplate define at a contact portion therebetween a radial low pressure passage, which is fluidically communicated with an axial low pressure hole receiving fluid from a pump reservoir and bypassed fluid from a flow volume control valve. The radially outer portions of the low pressure passage are gradually curved in a direction of rotation of the pump rotor.
摘要翻译：一种用于动力转向装置的叶片式液压泵，包括泵壳体，其中容纳有不可旋转的凸轮环和不可旋转但可轴向滑动的压板和副板。与驱动轴一体旋转的泵转子被容纳在凸轮环的内部凸轮孔中，并且当旋转时将加压流体输送到连接到动力转向装置的排出口。压板和副板限定在其间的接触部分处，该径向低压通道与从泵容器接收流体的轴向低压孔和来自流量控制阀的旁路流体流体连通。低压通道的径向外侧部分在泵转子的旋转方向上逐渐弯曲。

7. 发明申请

US20050155812A1 Motor vehicle steering device 有权
公开(公告)号：US20050155812A1
公开(公告)日：2005-07-21
申请号：US11082157
申请日：2005-03-16
申请人： Motoyasu Yamamori , Osamu Watanabe , Susumu Honaga , Yoshiharu Inaguma
发明人： Motoyasu Yamamori , Osamu Watanabe , Susumu Honaga , Yoshiharu Inaguma
IPC分类号： B62D5/00 , B62D5/04 , F16H49/00
CPC分类号： B62D5/0409 , B62D5/008 , F16H49/001
摘要： The invention provides a compact and highly reliable motor vehicle steering device that does not require a spiral flat cable. The motor vehicle steering device includes variable gear ratio system that modifies the transmission ratio of the rotary motions between first steering shaft and second steering shaft. Variable gear ratio system comprises Strain Wave Gearing Speed Reducer that modifies the transmission ratio between first steering shaft and second steering shaft in response to the rotating speed of motor shaft. Motor shaft and second steering shaft forms a substantially concentric dual structure, drive motor is affixed, and output shaft is connected to motor shaft.

8. 发明授权

US5651423A Power steering apparatus 失效
标题翻译：动力转向装置
公开(公告)号：US5651423A
公开(公告)日：1997-07-29
申请号：US452699
申请日：1995-05-30
申请人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Hideya Kato
发明人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Hideya Kato
IPC分类号： B62D5/06 , B62D5/07 , B62D6/02 , B62D5/087
CPC分类号： B62D5/062 , B62D6/02
摘要： A hydraulic power steering apparatus includes a motor-driven pump which discharges pressurized working fluid at a flow rate proportional to the rotational speed. A load-pressure responsive valve is connected to a discharge passage to which the pressurized fluid is discharged from the pump. The load-pressure responsive valve bypasses the pressurized fluid to a reservoir when the control valve is in a neutral state, thereby reducing the amount of the pressurized fluid supplied to the control valve, and increases the amount of the pressurized fluid supplied to the control valve when the load pressure of the pump increases upon operation of the control valve. With this control, the energy consumed by the pump can be reduced.
摘要翻译：液压动力转向装置包括电动泵，其以与转速成比例的流量排出加压工作流体。负载压力响应阀连接到排出通道，加压流体从泵排出。当控制阀处于中立状态时，负载压力响应阀将加压流体旁路到储存器，从而减少供给到控制阀的加压流体的量，并且增加供给到控制阀的加压流体的量当操作控制阀时泵的负载压力增加。通过这种控制，可以减少泵消耗的能量。

9. 发明授权

US5515938A Hydraulic power steering apparatus 失效
标题翻译：液压动力转向装置
公开(公告)号：US5515938A
公开(公告)日：1996-05-14
申请号：US138963
申请日：1993-10-21
申请人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Kenichi Fukumura , Hideya Kato , Katsuhisa Mori
发明人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Kenichi Fukumura , Hideya Kato , Katsuhisa Mori
IPC分类号： B62D5/083 , B62D6/02 , F04B49/22 , B62D5/06
CPC分类号： B62D6/02 , B62D5/083 , F04B49/225 , F04B2205/06 , F04B2205/08
摘要： A power steering apparatus having a fluid source for discharging pressurized fluid, a power cylinder, a control valve responsive to operation of a steering wheel for supplying the power cylinder with pressurized fluid from the fluid source, and a reservoir. The control valve has a first control portion for controlling the flow of pressurized fluid from the fluid source to the reservoir, and a second control portion for controlling the flow of pressurized fluid to the power cylinder. The first control portion has two paths connecting the fluid source and the reservoir, each of the paths being formed with at least one variable orifice of a center-open type which opens when the control valve is in a neutral state. The second control portion has two supply paths communicating with the fluid source and a pair of chambers of the power cylinder, each of the supply paths being formed with a variable orifice of a center-close type which closes when the control valve is in the neutral state, and two drain paths communicating with the pair of chambers and the reservoir, each of the drain paths being formed with a variable orifice of a center-open type which opens when the control valve is in the neutral state.
摘要翻译：一种动力转向装置，具有用于排出加压流体的流体源，动力缸，响应于操作方向盘的控制阀，用于向动力缸提供来自流体源的加压流体和储存器。控制阀具有用于控制加压流体从流体源流向储存器的第一控制部分和用于控制加压流体流向动力缸的第二控制部分。第一控制部分具有连接流体源和储存器的两条路径，每个路径形成有至少一个中心开放型可变孔口，当可控制阀处于空档状态时，其可打开。第二控制部具有与流体源和动力缸的一对腔室连通的两个供给路径，每个供给路径形成有中心关闭型的可变孔口，当控制阀处于中立状态时，该可变孔口关闭状态和与所述一对室和所述储存器连通的两个排放路径，每个所述排水路径形成有当所述控制阀处于中立状态时打开的中心开式的可变孔口。

10. 发明授权

US5372214A Power steering apparatus 失效
标题翻译：动力转向装置
公开(公告)号：US5372214A
公开(公告)日：1994-12-13
申请号：US34869
申请日：1993-03-19
申请人： Kyosuke Haga , Kiyotaka Kato , Mikio Suzuki , Yoshiharu Inaguma , Keiji Suzuki , Masanori Natsume , Hironori Hibino
发明人： Kyosuke Haga , Kiyotaka Kato , Mikio Suzuki , Yoshiharu Inaguma , Keiji Suzuki , Masanori Natsume , Hironori Hibino
IPC分类号： B62D5/065 , B62D5/10
CPC分类号： B62D5/065
摘要： A power steering apparatus for turning a steerable wheel of a vehicle in response to steering operation by a driver. The apparatus comprises a hydraulic pump for pumping a fluid from a reservoir so as to supply pressurized fluid to a power cylinder formed in a gear housing through a direction control valve which is operable in response to rotation of the steering wheel for selectively delivering the pressurized fluid to pair of pressure chambers of the power cylinder. The apparatus further comprises an electric motor for rotating the hydraulic pump, an accumulator for accumulating the pressurized fluid discharged from the hydraulic pump, a detector for detecting the pressure of the pressurized fluid and for outputting a signal corresponding to the detected pressure, and a controller responsible to the signal from the detector for activating the electric motor only when the detected pressure is below a predetermined level. The hydraulic pump and the electric motor are mounted on the gear housing.
摘要翻译：一种用于响应于驾驶员的转向操作来转动车辆的可转向车轮的动力转向装置。该装置包括用于从储存器泵送流体的液压泵，以便通过方向控制阀将加压流体供应到形成在齿轮壳体中的动力缸，该方向控制阀响应于方向盘的旋转而可操作以选择性地输送加压流体到动力缸的一对压力室。该装置还包括用于旋转液压泵的电动机，用于累积从液压泵排出的加压流体的蓄能器，用于检测加压流体的压力并输出对应于检测到的压力的信号的检测器，以及控制器负责来自检测器的信号，用于仅在检测到的压力低于预定水平时启动电动机。液压泵和电动机安装在齿轮箱上。

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