Operating system
1. program in a digital computer system that together with the characteristics of the computer system forms the basis for the possible operating modes of the digital computer system and in particular controls [...] controls and monitors the execution of the program (EDIN 44 300 Part 4). 2. Term for those parts of the software that must always be present in memory, independent of the current usage of the computer
Device oriented plan
the circuit diagram because it only contains the action sequences of specific devices and no (Figure G 2) .
Bar
Unit for pressure: 1 bar = 105 N/m2 The unit "bar" is frequently used in modern fluid technology, as that way the traditional numerical values can still be used for pressures. In SI units the unit "pascal" [...] "pascal" is recommended for pressures: 1Pa = 1 N/m2 A simple conversion yields: 10 bar = 1x106 Pa = MPa.
Operating safety
The term has two elements: 1. Sum of all measures that are necessary to ensure the safety of the operator as well as the machine against overload. Here the requirements from the responsible authorities [...] s have priority; these primarily relate to the safety of controls. 2. Operating safety in the context of trouble-free operation, i.e. far-reaching exclusion of any causes of failure. The measures necessary
Incrementing
Increasing a value by 1, i.e. counting up to higher values in individual steps.
Heat balance in hydraulic systems
The power loss in hydraulic systems results in an inflowing heat flow W z, which partly fills the heat capacity C of the oil and the metal parts surrounding it (pipes, cylinders, motors): Another part [...] temperature reach is beneath the operating temperature T B, no further measures are necessary ( Figure W 1 , curve I). The same applies to the case that T B only reaches t B after the operating time given a
Quad-ring
Toroidal ring made of elastic materials, with an almost square cross-section ( Figure Q 1 ).
Transmission ratio
the case of a Pressure amplifier the high-pressure on the small area A 2 is greater than the low pressure on the larger area A 1. The transmission ratio is equal to the surface ratio α: In the same way
5-chamber valve
valve with five annular channels in the housing for ports A, B, P and T. The spring chambers F 1 and F 2 remain outside the control area of the valve and can have a dedicated drain port (Figure F 39)
Flame-resistant hydraulic fluids
terms of their viscosity characteristics, while HFA is water-thin ( Table S 1 ). In most cases, the HFA pressure fluids (DIN 24 320) require a special structure, while HFC and HFD pressure fluids can be [...] be used to operate all construction elements in hydraulic systems under certain constraints (VDMA 24 317).