Stretch-loading of seals
Stress, which occurs where the moved surface runs together with the sealing lip i.e. the frictional force on the bottom side of the seal acts opposite to the compressive force on the seal (Figure Z 6)
Feed circuit
Low-pressure circuit in a hydrostatic transmission with the task of constantly replacing the small oil volume with fresh oil in a closed circuit. For this purpose, there is a feed circuit from the Cha
Proportional control technology
In a broader sense, proportional control technology is a collective term for all the various uses of continuously adjustable valves and also therefore of servo valves. On a day-to-day basis, however,
Centrifugal pump
Pump where the increase in energy associated with a medium is largely dependent on the kinetic energy applied to it. For flow rate and pressure , it is a case of: where D = profile diameter, u = circu
Frequency modulation
Process for superimposing signals on a carrier wave on which the amplitude remains constant, but the frequency changes with the modulation. This includes above all the pulse modulation method .
Built-in dirt
This casual term covers all particles of dirt that - unlike debris - enter the system during the manufacture and assembly of the devices in the system. These include above all casting sand, welding sl
Starting position; basic position
Position of the moving parts in a device at which the intended switching program starts under the action of the actuating forces. It is achieved via the starting prerequisites (CETOP RP 100).
Response value
With analogue measuring procedures the response value is the smallest value for a change in the input variable that, starting from the zero point, causes a clearly identifiable change in the output va
Initial slope time
Time that would be necessary to reach an agreed value for the task or controlled variable if its max. rate of change from the initial value of the output variable to the agreed value were to remain ef
Double acting cylinder
Cylinder in which a pressure difference can act in both directions (forward and return stroke) ( ISO 1219-1 ). Double-acting cylinders have two surfaces that act in opposite directions. The surfaces a