一种液压转向装置(1)包括供应端口(2)、回流端口(4)、具有两个工作端口(5、6)的工作端口装置、在供应端口(2)和工作端口(5)中的一个工作端口之间的主流动路径(7)以及在另一个工作端口(6)和回流端口之间的回流路径(8)。主流动路径(7)包括主孔口(A1)、流量计(9)、在流量计上游的第一流量计孔口(A2)、在流量计下游的第二流量计孔口(A3),以及第一工作端口孔口(A4)。回流路径包括第二工作端口孔口(A5),负载感测点(17)布置于主孔口(A1)和第一流量计孔口(A2)之间,排放孔口(Ad)布置于负载感测点(17)和回流端口(4)之间,并且优先阀装置(10)布置于供应端口(2)和主孔口(A1)之间。
A hydraulic steering arrangement (1) is described, the hydraulic steering arrangement (1) comprising a supply port (2), a return port (4), a working port arrangement having two working ports (5, 6), a main flow path (7) between the supply port (2) and one of the working ports (5) and a return flow path (8) between the other working port (6) and the return port (4), wherein the main flow path (7) comprises a main orifice (A1), a flow meter (9), a first flow meter orifice (A2) upstream the flow meter (9), a second flow meter orifice (A3) downstream the flow meter (9), and a first working port orifice (A4), the return flow path (8) comprises a second working port orifice (A5), a load sensing point (17) is arranged between the main orifice (A1) and the first flow meter orifice (A2), a drain orifice (Ad) is arranged between the load sensing point (17) and the return port (4), and a priority valve arrangement (10) is arranged between the supply port (2) and the main orifice (A1).Such a steering arrangement should enable a high steering speed without loss of comfort.To this end a load sensing port (16) of the priority valve arrangement (10) is connected to the load sensing point (17), characterized in that a priority outlet (CF) of the priority valve arrangement (10) is directly connected to the main orifice (A1), the load sensing port (16) of the priority valve arrangement (10) is directly connected to the load sensing point (17) and the main flow path (7) comprises a check valve (24) between the load sensing point (17) and the working port (5) of the main flow path (7), the check valve (24) opening in a direction towards the working port (5).
液压转向装置
17.06.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |