Hakuteksti "pumpe".

Hydraulic pump , consisting of several single pumps working in series. The aim is to achieve a higher pressure than permitted by the single pump. Sample application: Internal gear pump , which reaches

therefore deliver a constant flow rate at a specific rotation speed. When designing an axial piston pump, it is not only the functional principle that comes into play, but also whether the equipment is to

External gear pump with compensation of the radial and axial play to reduce the gaps with increasing pressure . This compensation is achieved by means of suitably shaped and arranged compression springs

this device. As during this process the pump operates against the related system pressure, the resulting losses must not be underestimated. Here the losses in the pump often make up the major part of the losses [...] Device that sets the delivery flow of a variable pump to zero on reaching a set pressure such that this pressure is maintained in the system (Figure D 71) . This means that all internal and external pressure [...] response pressure can be pre-selected on a case-by-case basis (see Pressure-flow (p-Q) control of a pump ).

The torque M of a pump is calculated from the pressure p, the volume per revolution Vg and the hydraulic mechanic efficiency factor ηhm of the pump. Calculate the torque input of a pump directly and easily

Pump direction switching

Multiple pump whose units supply separate circuits with a pressure-limiting valve because their working cycles overlap. If a constant pump is involved, the installed power will be equal to the total for

The power input P of a pump is calculated from the pressure p and the flow Q as well as from the efficiency factor η of the pump. Alternatively, the power input can also be calculated from the torque M

If different speeds are required, constant pumps are used in throttle control and variable pumps in pump controls .

Power at the pump drive shaft at a given point in time or under given load conditions.