Filler filter
filling. It is appropriate to combine the filler filter with the flushing power pack , as otherwise the filling process will take too long with cold oil.
Opening pressure
pressure difference (DIN 3320). With pressure-limiting valves under direct control, the size of the opening pressure is adjusted by means of the preload associated with the compression springs. In general
Noise
is subjected to random influences. Acoustics : Sounds with parts of all frequencies within a given range, which do not have a phase relationship with one another and whose intensity changes statistically
Roof-shaped seal
several, often with different materials, are assembled to form roof-shaped seal sets (Figure D 1) . In principle a differentiation is made between two forms: In form (a) the limbs are in contact with each other
Special gear pump
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
Sealing system
the increased sensitivity to leakage with operating conditions that are becoming harder at the same time: a situation that is becoming increasingly difficult with individual seals (Figure D 15) . The
Selsyn rotary position encoder
encoder based on the principle of the rotating field that contains a rotor and a stator with a number of windings and with an output voltage that corresponds to the angular position of the rotor. The stator
Energy recovery in hydraulics
recovery energy used: Utilisation of kinetic energy between moving masses by using hydraulic motors with secondary regulation. The energy recovered is collected in a hydraulic accumulator (on electrical [...] example: vehicle drive). Utilisation of the potential energy of lowering masses via hydraulic motors with secondary regulation (b) ; example: crane. Utilisation of dissipated heat via heat exchangers.
Damping of cylinder motion
any stroke position (e.g. as the tool approaches the workpiece) is only undertaken with measures in the control, e.g. with travel-dependent controlled braking valves or by means of the corresponding operation
Multi-position controller
controller: temperature control for heating and ventilation based on three values associated with the actuator with mechanically controlled valve such as ventilation valve open, both valves closed and heating