Proportional valves
control piston is already moving without any flow rate taking place. As well as permitting this overlap, the relatively large stroke of a proportional solenoid also ensures the control piston still has [...] — are not particularly sensitive to contamination (e.g. recommended filter unit 25 μm compared with 3...5 μm) and therefore more durable from an operational perspective. The various groups are distinguishable [...] valves :As in conventional hydraulic systems , there are throttle valves ( Figure P 27 ) and 2-way and 3-way flow control valves . Here, the throttle ( measuring throttle ) in the form of a 2/2-way or 4/2-way
轴向柱塞泵
元件种类: 轴向柱塞泵 定量泵 结构形式: 单泵 p max : 400 bar V g max : 108 cm 3 /U K60N 型定量轴向柱塞泵 K61N 元件种类: 轴向柱塞泵 定量泵 结构形式: 单泵 p max : 400 bar V g max : 108 cm 3 /U K61N 型轴向柱塞定量泵 [...] 设备种类: 轴向柱塞泵 变量泵 结构形式: 单泵 多泵 p max : 额定压力 p 额定 :280 bar 峰值压力 p max :320 bar V g max : 85 cm³/U Axial piston pump type C40V V60N 元件种类: 轴向柱塞泵 变量泵 结构形式: 单泵 多级泵 p max : 系统压力: 400 bar 峰值压力: 450 bar V g max : 130 [...] cm³/U V30E 型变量轴向柱塞泵 V80M 元件种类: 轴向柱塞泵 结构形式: 单泵 多泵 p max : 系统压力: 400 bar 峰值压力: 450 bar V g max : 202 cm 3 /U V80M 型变量轴向柱塞泵 V30D 元件种类: 轴向柱塞泵 变量泵 结构形式: 单泵 多级泵 p max : 系统压力: 350 bar, 350 bar 峰值压力: 420 bar, 420
Servo valve
from the valve to the consumer if approximately 1/3 of the available system pressure p max reaches the pressure difference on the valve and approximately 2/3 is available as load pressure on the consumer. [...] which is taken over by the hydraulic control unit. A distinction is made between 1-stage and 2-stage or 3-stage servo valves. In one-stage servo valves, the electrical input stage (torque motor, moving coil) [...] torque motor) and a hydraulic amplifier stage (normally a flapper-nozzle system ), which adjusts the piston of the primary control stage in proportion to the input signal ( Figure S 50 ). A feedback spring