Hakuteksti "P - R2 - 1 - 1/4 - AT".

dependent on pressure difference Δ p of the throttle point. Flow control valves , which are not pressure-controlled. The flow rate Q remains largely constant even at different load pressures. The flow

Energy stored in a pressure fluid compressed at the pressure p. The storage of energy within a volume of gas or fluid as a result of pressure is comparable to the storage of energy when a mechanical spring

velocities and loads (often more than 1:1,000). This means that the displacement, oil leakage flows and friction moments should be independent of the angle of rotation. Even at lower speeds or velocities, the

(°E), and then in stokes or centistokes (cSt), but is now given in m 2 /s or mm 2 /s. cSt can be converted as follows: 1 cSt = 1 mm 2 /s [...] The kinematic viscosity indicates whether a hydraulic fluid is thin or viscous at a certain temperature, and therefore whether the friction between the fluid layers is lower or higher. This also has an

measures, compliance with which – in the interaction with other technical measures –– should ensure that by keeping within the tolerable risk, the safety objectives are met at the operating conditions to be

delay time. It is the time, which the output signal of a 1st order delay element requires to reach 63% of the end value. After 3 · T 95 % and at 5 · T almost 100 % of the end value (Figure Z 3). The term [...] term time constant is –– not completely correctly –– used if systems (e.g. ) can be assumed to be 1st order systems (e.g. if the natural frequency is somewhat dampened and the valve behaviour in the subsystem

cog tips, depending on the pressure ( Figure R 1 ). The radial gap compensation makes a significant contribution to allowing such internal gear pumps to work at pressures of 300 to 350 bar.

speed n) into hydraulic energy (flow rate Q, pressure p). Displacement pumps are used in hydrostatic applications for this purpose. A flow rate emerges at the pressure connection of the pump and drives the

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 [...] into a path, 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 [...] servo valve today at a damping of 0.6. However, that can only be achieved with extremely short control distances of a few tenths of millimetres. Therefore, a high pressure difference at the control edges

exploit its torque. This means that almost all torque is available, even at a low motor speed (= lowest accelerator pedal setting f 1) (Figure H 28) . This also applies to the braking torque. Using a limit