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11. 发明授权

US5339917A Power steering device 失效
标题翻译：动力转向装置
公开(公告)号：US5339917A
公开(公告)日：1994-08-23
申请号：US1846
申请日：1993-01-08
申请人： Eugen Eberhart
发明人： Eugen Eberhart
IPC分类号： B62D5/083 , B62D5/06 , B62D6/02 , F15B13/043
CPC分类号： B62D6/02 , Y10T137/86654
摘要： A power steering device supplies hydraulic oil to the left and right chambers (6,7) of a servo cylinder (3) by means of a pump (10) via a rotary slide valve (9), whereby a reaction piston (18) that is stressed by a pressure spring (19) is arranged between an input shaft (14) and a control sleeve (15) of the rotary slide valve (9). In order to create a simply constructed hydraulic reaction system for this power steering device, it is suggested that a ratio pressure control valve (VDRV) (30) to reduce the system pressure (P) to a lower reaction pressure (P2) and a variable stop (29) to control the hydraulic retroactive moment as a function of the speed are arranged in a line (31) between the pump (10) and the rear side of the reaction piston (18) that is stressed by the pressure spring (19). The invention furthermore suggests that a variable stop (34) to control the return pressure (PR) as a function of the speed is arranged in a line (PR) between the front side of the reaction piston (18) and a tank (27).
摘要翻译：动力转向装置通过旋转滑阀（9）通过泵（10）向伺服缸（3）的左和右室（6,7）供应液压油，由此反应活塞（18），其中被压力弹簧（19）被设置在输入轴（14）和旋转滑阀（9）的控制套筒（15）之间。为了创建用于该动力转向装置的简单构造的液压反应系统，建议将比例压力控制阀（VDRV）（30）将系统压力（P）降低到较低的反应压力（P2）和变量控制作为速度的函数的液压回溯力的止动件（29）布置在泵（10）和由压力弹簧（19）应力的反作用活塞（18）的后侧之间的管线（31）中）。此外，本发明还提出，将反作用力（PR）作为速度的函数来控制返回压力（PR）的可变止动件（34）布置在反作用活塞（18）的前侧和油箱（27）之间的管线（PR）。

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