Rigid vane machine
Reverse of the Vane pump principle , in which two vanes are adjustably arranged in the housing at an angle of 180°, which, together with two cams on the rotor, create two suction chambers and two pres
Control range
Range within which the control variable can be configured, considering agreed values of disturbance variables, without jeopardising the functionality of the (DIN 19 226).
Measuring throttle (metering orifice)
Component of a flow control valve at which the flow rate to flow through the valve is pre-selected. The target flow rate is pre-selected by setting the flow cross section for the measuring throttle. T
Displacement chamber machines
Collective term for hydrostatic displacement machines whereby the displacement units are generally pistons moved in a linear manner such as a pump with banked pistons/in-line piston pump , displacemen
Underlap compensating signal
Automatically created signal added to the input signal to overcome the positive overlap in the case of proportional valves (before the start of switching). (DIN 24 311). The size of the underlap compe
Rotation servo valve
Mechanical-hydraulic 4-edge servo valve in which the valve control spool is connected to a drive motor (e.g. a stepper motor ), while the working element (e.g. a hydraulic motor) is linked to the valv
MH engine (bent-axis machine)
"Torque at the driving disc"; classification characteristic based on drive kinematics for axial piston bent-axis (axial piston) pump or motors where the piston rods take the torque-free cylinder drum
Auxiliary signals
All signals, apart from the input signal , required for the functionality and monitoring of a device. These include dither signals , feedback signals, , testing signals and the like (DIN 24 311).
Bleed valve (Hy), exhaust valve (PN)
Device for removing undissolved air (gas) that may be carried in the hydraulic fluid in a hydraulic system . The valve must be fitted at the highest point in the system and can trigger automatically o
Pressure measuring procedures
General : Depending on the nature of the changes in the pressure, a differentiation is made between static and dynamic pressure measuring procedures. Static pressure measuring procedures are when cons