公开(公告)号：US06560961B2

公开(公告)日：2003-05-13

申请号：US09954489

申请日：2001-09-18

Applicant: Don R. Draper ,  Douglas R. Gilbert

Inventor： Don R. Draper ,  Douglas R. Gilbert

IPC: F16D1302

CPC classification number: B62D5/097

Abstract: A full fluid-linked steering system includes a fluid pump (11), a fluid controller (19), a steering actuator (17), an electro-hydraulic compensation valve (21), and a vehicle microprocessor (23). Downstream of the fluid pump (11) is a load sensing priority flow control valve (15) having both a controlled flow outlet port (CF) and an excess flow outlet port (EF). The excess flow outlet port (EF) communicates with an inlet port (35) of the fluid controller (19), while the controlled flow outlet port (CF) communicates with a fluid inlet (63) of the compensation valve (21). As a result, when the steering actuator (17) is at the end of its travel, pressure will be communicated only through the compensation valve (21), and the operator will be unable to turn the steering wheel further in the same direction.

Abstract translation: 完整的流体连接的转向系统包括流体泵（11），流体控制器（19），转向致动器（17），电动液压补偿阀（21）和车辆微处理器（23）。 流体泵（11）的下游是具有受控流出口（CF）和过量流出口（EF）两者的负载感测优先流量控制阀（15）。 过量流出口（EF）与流体控制器（19）的入口（35）连通，而受控流出口（CF）与补偿阀（21）的流体入口（63）连通。 结果，当转向致动器（17）处于其行程结束时，压力将仅通过补偿阀（21）连通，并且操作者将不能沿相同的方向进一步转动方向盘。

公开(公告)号：US5186212A

公开(公告)日：1993-02-16

申请号：US819715

申请日：1992-01-13

Applicant: Dwight B. Stephenson ,  Don R. Draper

Inventor： Dwight B. Stephenson ,  Don R. Draper

IPC: B62D5/083 ,  B62D5/087 ,  B62D5/09 ,  B62D5/097

CPC classification number: B62D5/097 ,  Y10T137/86662

Abstract: A fluid controller (11) is disclosed of the type including a housing (13), a fluid meter (17), a primary (spool) valve (35), and a follow-up (sleeve) valve (37). An inlet port (23) is in communication with a series of fluid ports (85), and operating ports (91L and 91R) are in communication with the cylinder ports (27 and 29). Rotation of the spool relative to the sleeve causes axial displacement of the sleeve as a result of the configuration of a pin opening (55) in which a drive pin (53) is disposed. After a certain amount of axial movement of the sleeve, the various ports (85,91L,91R) begin to communicate with a pair of meter grooves (67R and 67L) and a tank groove (71R), respectively, to define variable axial flow control orifices (A1a,A4a,A5a).

Abstract translation: 公开了一种流体控制器（11），其包括壳体（13），流量计（17），主（阀芯）阀（35）和随动（套筒）阀（37）。 入口（23）与一系列流体端口（85）连通，并且操作端口（91L和91R）与气缸端口（27和29）连通。 卷轴相对于套筒的旋转导致套筒的轴向位移，这是由于其中设置有驱动销（53）的销开口（55）构成的。 在套筒的一定量的轴向移动之后，各个端口（85,91L，91R）开始分别与一对计量槽（67R和67L）和槽槽（71R）连通，以限定可变轴向流动 对照孔（A1a，A4a，A5a）。