Throttle forms
Throttles as an independent element in the context of flow resistances are used to change a flow rate. A differentiation is made between constant throttles with the two forms of nozzle and orifice tha
Pressure filter
Filter that is built into the high-pressure line, i.e. after the pump. It is an advantage that only the pump delivery flow must pass through it and that the following components are protected (Figure
Indication range
Range of measured values that can be read on a measuring instrument. This range is not necessarily identical to the measuring range .
Over-excitation
To reduce the switching time (or to increase the stroke force) in the case of DC solenoids, the operating voltage is increased up to a factor of two. To prevent damage to the solenoid, however, the sw
Sensor
Primary element of a transducer, which directly determines the measured variable and converts it into a mechanical or electrical signal suitable for further processing. In practice, the term sensor is
Primary control
In a hydrostatic transmission , the pump can be adjusted and the motor is associated with constant displacement . The drive rotation speed is therefore proportional to the flow rate for the pump, i.e.
Labyrinth seal
Seal type for sealing rotating areas based on a gap seal whereby the gap length is increased by the contour of the gap assuming a meandering or zigzag pattern ( Figure L 1 ). Labyrinth seals — mainly
Closed circuit
Basic design for a hydraulic drive in which the fluid circulates from the pump to the actuator and from there straight back into the suction line of the pump. The main difference between this and an "
Valve noises
Noises created when switching and flowing through valves . As opposed to the switching and oscillation noises, the flow noises are the main sources of noise in valves. Oscillation noises primarily ari
Adjustment time
Time at which the correcting variable runs through the correcting range at the maximum considered correcting speed (DIN 19 226).