Accumulator drive
Variation of central hydraulic oil supply (system with impressed pressure), in which a hydraulic accumulator performs the task of providing energy at power peaks. This can be used to select the flow r
Redundancy
Denotes the presence of more resources than are required to perform the intended tasks. The redundancy is used in several technical areas to increase reliability and robustness or to achieve functiona
Multi-loop feedback control circuits
With multi-loop feedback control circuits, several physical variables are recorded during the process and processed in accordance with various algorithms . These include cascaded (multi loop) control
HFD fluids
Water-free, synthetically produced fire-resistant fluids. They rely on the following compounds: Phosphoric ester (HFD R), currently the most widely used HFD fluid; performs worst in terms of fire resi
Speed characteristic of hydraulic motors
In principle the rotation speed of a hydraulic motor is defined by the ratio of the flow rate supplied Q 1 to the displacement of the motor V 2: The highest rotation speed is reached on fixed displace
Operating characteristics
Collective term for the characteristics that influence the operation of devices and systems up to installations. These include efficiency characteristics , flow diagram , pressure-signal functions as
Throttle
Throttle is the general term used for a physical flow resistance. Throttle is therefore the generic term for orifice and nozzle . Flow resistances with a largely linear dependence of the flow rate on
Volume (bulk) filters
Filter, which separates contaminations primarily on the inside (bulk) of the filtering material. Filter elements with several layers are used for this and are made of metal powder (sintered filer or f
Variable area principle
A floating measuring body is raised by the flow rate in a conical measuring pipe until a balance is reached between the weight of the floating body and the flow resistance ( Figure S 39 ). This means
Pitot tube
Angled measuring device for determining the total pressure , i.e. the overall figure for the static and dynamic pressure associated with a fluid flowing at a subsonic rate. The pitot tube consists of