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。

公开(公告)号：US5303793A

公开(公告)日：1994-04-19

申请号：US904685

申请日：1992-06-26

申请人： Kiyotaka Kato ,  Shiro Takeuchi ,  Masanori Natsume ,  Seiji Kawakami ,  Ikuo Kushiro ,  Satoru Niwa

发明人： Kiyotaka Kato ,  Shiro Takeuchi ,  Masanori Natsume ,  Seiji Kawakami ,  Ikuo Kushiro ,  Satoru Niwa

IPC分类号： B62D5/22 ,  B62D3/02

CPC分类号： B62D5/22 ,  B62D1/166

摘要： A power steering apparatus of rack-and-pinion type comprising an input shaft steered by a driver, an output shaft operatively connected to a rack bar through a rack-and-pinion gear mechanism, a hydraulic cylinder operatively connected to the rack bar, and a rotary valve operatively connected to the input shaft. The steering apparatus further comprises an intermediate rotary member disposed between the input shaft and output shaft for rotation about an axis offset from the rotational axis of the output shaft, and a reduction gear mechanism arranged between the rotary valve and the intermediate rotary member. A cam mechanism is disposed between the intermediate rotary member and the output shaft for transmitting the rotation of the intermediate rotary member to the output shaft. The cam mechanism is composed of a cam groove formed on one of the intermediate rotary member and output shaft, and a follower roller provided on the other of the intermediate rotary member and output shaft to be engaged with the cam groove.

摘要翻译： 一种齿条齿轮式动力转向装置，包括由驾驶员转向的输入轴，通过齿条和小齿轮机构可操作地连接到齿条的输出轴，可操作地连接到齿条的液压缸，以及 可操作地连接到输入轴的旋转阀。 转向装置还包括设置在输入轴和输出轴之间的中间旋转构件，用于围绕输出轴的旋转轴线偏移的轴线旋转，以及设置在旋转阀和中间旋转构件之间的减速齿轮机构。 凸轮机构设置在中间旋转构件和输出轴之间，用于将中间旋转构件的旋转传递到输出轴。 凸轮机构由形成在中间旋转构件和输出轴中的一个上的凸轮槽以及设置在中间旋转构件和与凸轮槽接合的输出轴中的另一个的从动辊构成。