A hydraulic steering unit is described, the steering unit comprising: a supply port arrangement having a supply port and a return port; the working port device is provided with two working ports; a diverter valve arrangement having two valve elements arranged in the housing and movable relative to each other to change a characteristic of the orifice; and a measuring motor disposed in the line between the steering valve device and one of the working ports. The hydraulic steering unit should create a similar end stop feel in both steering directions. To this end, a back pressure device is provided which generates a back pressure on the measuring motor, the back pressure device being controlled by valve elements, and a friction device is provided between one of the valve elements and the housing, or between the rotating part of the measuring motor and the housing.
描述了一种液压转向单元,该转向单元包括:具有供应端口和返回端口的供应端口装置;具有两个工作端口的工作端口装置;具有两个阀元件的转向阀装置,该两个阀元件布置在壳体中并且相对于彼此能够移动以改变节流孔的特性;和测量马达,布置在转向阀装置与所述工作端口中的一个工作端口之间的管线中。液压转向单元应在两个转向方向上形成相似的末端止动感觉。为此,设置背压装置,该背压装置在测量马达上产生背压,其中该背压装置由阀元件控制,并且在所述阀元件中的一个阀元件与壳体之间、或在测量马达的旋转部分与壳体之间相应地设置摩擦装置。
Hydraulic steering unit
液压转向单元
2023-08-22
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |