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1. 再颁专利

USRE43662E1 Power assisted steering for all terrain vehicle 有权
标题翻译：所有地形车辆的助力转向
公开(公告)号：USRE43662E1
公开(公告)日：2012-09-18
申请号：US12167942
申请日：2008-07-03
申请人： David T. Takamoto , Jack R. Auld , John C. Dunne, Jr. , Harry Adam Dupre, III , Eric N. Anderfaas , Dean W. Banks , Gregory E. Mott
发明人： David T. Takamoto , Jack R. Auld , John C. Dunne, Jr. , Harry Adam Dupre, III , Eric N. Anderfaas , Dean W. Banks , Gregory E. Mott
IPC分类号： B62D5/00
CPC分类号： B62D6/02 , B62D5/12
摘要： An all terrain vehicle has a frame carried by a group of wheels. At least one of the wheels is steerably connected to the frame. A steering handle assembly is rotatably connected to the frame. A servo valve has an input shaft connected to the steering handle assembly and an output shaft connected to a pitman arm. A linkage extends from the pitman arm to the steerable wheel or wheels. A pump draws fluid from a reservoir and passes the fluid through the servo valve before the fluid is returned to the reservoir. The servo valve redirects at least a portion of the flow to a cylinder to drive a ram within the cylinder in response to steering movement of the steering handle assembly. The ram, in turn, provides a power assist to the steerable wheel or wheels. A variable speed, constant displacement pump can be used to vary the flow rate in a manner that reduces the flow rate as the vehicle speed increases. Alternatively, a bypass can be used to vary a flow rate through the servo valve. A damping valve arrangement also can be provided to absorb shocks to the steering system such that the wheels can initially deflect and then return to the original position without substantial input from the steering handle assembly.
摘要翻译：全地形车辆具有由一组车轮承载的框架。至少一个轮子可操纵地连接到框架。转向手柄组件可旋转地连接到框架。伺服阀具有连接到转向手柄组件的输入轴和连接到倾斜臂的输出轴。连杆从pitman手臂延伸到可转向轮或车轮。泵将液体从储存器中抽出，并在流体返回储存器之前使流体通过伺服阀。伺服阀将至少一部分流量重定向到气缸以响应于转向手柄组件的转向运动而驱动气缸内的压头。这个冲头又向可转向的轮子或轮子提供动力辅助。可以使用可变速恒定容积泵来以随车速增加而降低流量的方式改变流量。或者，可以使用旁路来改变通过伺服阀的流量。还可以提供阻尼阀装置以吸收对转向系统的冲击，使得轮可以初始偏转，然后返回到原始位置，而没有来自转向手柄组件的实质输入。

2. 发明授权

US07070019B2 Power assisted steering for all terrain vehicle 有权
标题翻译：所有地形车辆的助力转向
公开(公告)号：US07070019B2
公开(公告)日：2006-07-04
申请号：US10178903
申请日：2002-06-21
申请人： David T. Takamoto , Jack R. Auld , John C. Dunne, Jr. , Harry Adam Dupre, III , Eric N. Anderfaas , Dean W. Banks , Gregory E. Mott
发明人： David T. Takamoto , Jack R. Auld , John C. Dunne, Jr. , Harry Adam Dupre, III , Eric N. Anderfaas , Dean W. Banks , Gregory E. Mott
IPC分类号： B62D5/00
CPC分类号： B62D6/02 , B62D5/12
摘要： An all terrain vehicle has a frame carried by a group of wheels. At least one of the wheels is steerably connected to the frame. A steering handle assembly is rotatably connected to the frame. A servo valve has an input shaft connected to the steering handle assembly and an output shaft connected to a pitman arm. A linkage extends from the pitman arm to the steerable wheel or wheels. A pump draws fluid from a reservoir and passes the fluid through the servo valve before the fluid is returned to the reservoir. The servo valve redirects at least a portion of the flow to a cylinder to drive a ram within the cylinder in response to steering movement of the steering handle assembly. The ram, in turn, provides a power assist to the steerable wheel or wheels. A variable speed, constant displacement pump can be used to vary the flow rate in a manner that reduces the flow rate as the vehicle speed increases. Alternatively, a bypass can be used to vary a flow rate through the servo valve. A damping valve arrangement also can be provided to absorb shocks to the steering system such that the wheels can initially deflect and then return to the original position without substantial input from the steering handle assembly.
摘要翻译：全地形车辆具有由一组车轮承载的框架。至少一个轮子可操纵地连接到框架。转向手柄组件可旋转地连接到框架。伺服阀具有连接到转向手柄组件的输入轴和连接到倾斜臂的输出轴。连杆从pitman手臂延伸到可转向轮或车轮。泵将液体从储存器中抽出，并在流体返回储存器之前使流体通过伺服阀。伺服阀将至少一部分流量重定向到气缸以响应于转向手柄组件的转向运动而驱动气缸内的压头。这个冲头又向可转向的轮子或轮子提供动力辅助。可以使用可变速恒定容积泵来以随车速增加而降低流量的方式改变流量。或者，可以使用旁路来改变通过伺服阀的流量。还可以提供阻尼阀装置以吸收对转向系统的冲击，使得轮可以初始偏转，然后返回到原始位置，而没有来自转向手柄组件的实质输入。

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