公开(公告)号：US06953102B2

公开(公告)日：2005-10-11

申请号：US11017696

申请日：2004-12-22

申请人： Masakazu Kurata ,  Tadaharu Yokota ,  Michiya Hiramoto

发明人： Masakazu Kurata ,  Tadaharu Yokota ,  Michiya Hiramoto

IPC分类号： B62D5/07 ,  B62D3/14 ,  B62D5/06 ,  B62D5/18 ,  B62D5/08

CPC分类号： B62D5/065

摘要： A power steering system includes: a first drain passage for draining an oil pressure from a first oil passage, a second drain passage for draining the oil pressure from a second oil passage, and a pair of a first and second switch valves. When one of the first oil passage and the second oil passage is so pressurized by an operation of a reversible oil pump as to have an increased internal pressure, the pair of the first switch valve and the second switch valve allow the following: i) closing one of the first drain passage and the second drain passage which one is connected to the oil passage having the thus increased internal pressure, while ii) opening the other of the first drain passage and the second drain passage which other is connected to the oil passage that is so depressurized as to have a decreased internal pressure.

公开(公告)号：US06851507B2

公开(公告)日：2005-02-08

申请号：US10750898

申请日：2004-01-05

申请人： Masakazu Kurata ,  Tadaharu Yokota ,  Michiya Hiramoto

发明人： Masakazu Kurata ,  Tadaharu Yokota ,  Michiya Hiramoto

IPC分类号： B62D5/07 ,  B62D3/14 ,  B62D5/06 ,  B62D5/18 ,  B62D5/08

CPC分类号： B62D5/065

摘要： A power steering system includes: a first drain passage for draining an oil pressure from a first oil passage, a second drain passage for draining the oil pressure from a second oil passage, and a pair of a first and second switch valves. When one of the first oil passage and the second oil passage is so pressurized by an operation of a reversible oil pump as to have an increased internal pressure, the pair of the first switch valve and the second switch valve allow the following: i) closing one of the first drain passage and the second drain passage which one is connected to the oil passage having the thus increased internal pressure, while ii) opening the other of the first drain passage and the second drain passage which other is connected to the oil passage that is so depressurized as to have a decreased internal pressure.

摘要翻译： 动力转向系统包括：用于排出来自第一油路的油压的第一排水通道，用于从第二油路排出油压的第二排水通道和一对第一和第二开关阀。 当第一油路和第二油路中的一个通过可逆油泵的操作被加压以具有增加的内部压力时，该对第一切换阀和第二切换阀允许以下：i）关闭 第一排水通道和第二排水通道中的一个连接到具有如此增加的内部压力的油通道，同时ii）打开第一排水通道和第二排水通道中的另一个，另一个连接到油路 那就是如此减压以至内压降低。