Run up time constant To
time constant To for, say, a 50 kW axial piston motor would be around 0.2 s (the run up time constant To for an electric motor with the same power would be over 3 s).
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
액시얼 피스톤 펌프
토출 펌프 디자인: 개별 펌프 p max : 400 bar V g max : 108 cm 3 /U 축방향 피스톤 정량 토출 펌프 타입 K60N K61N 명칭: 액시얼 피스톤 펌프 정량 토출 펌프 디자인: 개별 펌프 p max : 400 bar V g max : 108 cm 3 /U 고정 용량형 축형 피스톤 펌프 타입 K61N [...] 용량형 펌프 버전: 단일 펌프 다중 펌프 p max : 정격 압력 p 정격 : 280 bar 최고 압력 p max : 320 bar V g max : 85 cm³/U Axial piston pump type C40V V60N 명칭: 액시얼 피스톤 펌프 가변 용량형 펌프 디자인: 개별 펌프 다중 펌프 p max : 작동압력: 400 bar 최고 압: 450 bar [...] 펌프 타입 V30E V80M 명칭: 액시얼 피스톤 펌프 버전: 개별 펌프 다중 펌프 p max : 작동압력: 400 bar 최고 압: 450 bar V g max : 202 cm 3 /U 축방향 피스톤 가변 용량형 펌프 타입 V80M V30D 명칭: 액시얼 피스톤 펌프 가변 용량형 펌프 디자인: 개별 펌프 다중 펌프 p max : 작동압력: 350 bar, 350
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