Circulation losses in hydraulic systems
In order to be ready for operation, hydraulic systems normally need the pump to continue running even if its flow rate is not needed at that time, e.g. in the loading phase of a working cycle. The pum
Suction pressure control
The delivery quantity of a piston compressor (related to the normal state) varies as the suction pressure is changed, with the suction valve raised more or less by a release valve during the compressi
MZ engine (swashplate machine)
"Torque at the cylinder"; classification characteristic based on drive kinematics for axial piston swashplate (axial piston) pump or motors whereby torque is transmitted to the cylinder drum via the p
Hydraulic bridge rectifier
1. Arrangement whereby a combination of two half bridges results in a full (Wheatstone) bridge. This is the case, for example, with the control edges of continuously adjustable valves whereby deflecti
Error classification in measurements
A differentiation is made between systematic and random errors: Systematic errors : Are primarily caused by imperfections in the measuring instrument , the measuring procedure and the object measured.
Pressure stages
The pressure stages to be used in fluid technology are defined in DIN 24 312. They are taken from the preferred figure series R5 or R10 (Table D 3) . From these pressures a selection is defined in DIN
Electric signal technology
Signal area in which the signal input , signal linking and signal processing are with electrical components. These are predominantly switches, relays and contactors. Electric signal processing has bec
Analogue measuring procedure
Measuring procedure in which within the measuring range every value of the measured variable as an input variable is continuously assigned a value in the output range. The continuous assignment betwee
Force gain Eo
Indicates the extent to which force or pressure rises at the zero point as a function of valve control spool deflection for a continuously adjustable valve if the drive is retained ( Figure K 34 ).