Objet de la recherche «fluides».

Line which returns leaked fluid to the container. Its dimensions should ensure this is possible at all times with hardly any pressure — even at low temperatures.

Device for measuring pressure levels in fluid media. They may function directly (e.g. vertical column pressure gauge ) or indirectly, whereby elastic deflections, for example, are used to record the pressure [...] pressure level. The pressure gauges used in fluid technology almost always operate indirectly via measuring devices with a spring, whose deflections are relayed to a pointer. In terms of the structure,

Contamination of the hydraulic fluid in a hydraulic system prior to the first flushing. It comprises the contamination that is in the hydraulic fluid itself prior to filling the hydraulic system and the

The particle size of the contamination in a hydraulic fluid is spread over a wide area. In view of this fact, contamination classes have been created that set out the contamination in SAE-ASTM-AIA and [...] contamination classes also form the basis for the determination of the degree of purity of the hydraulic fluid after the filter .

During the operation of a hydraulic system the particles of dirt that occur in the pressure fluid . They are either Added from the outside, e.g. due to leaks, a poor breather filter or are due to inadequate [...] are metal chips as well as abraded material from the seals or Ageing products from the hydraulic fluid (sludge among others). Sometimes there can also be water (that has entered the system or condensation)

In hydraulic fluid removal of the air carried and separated out. This must take place at the highest point with the aid of bleed screws or bleed valves.

rate that a pump delivers. The term delivery flow should as far as possible no longer be used in fluid technology, instead flow rate should be used.

Compressed air filters that can retain particles of dirt down to 0.01 μm. This includes fluid particles of this size (e.g. aerosols), and also bacteria and viruses.

Resistance which a fluid flowing inside pipes or similar bodies must overcome. It is higher for laminar flow than for turbulent flow: where A S = flow cross section.

losses due to fluid friction are generally no longer negligible. The flow rate through the nozzle is, as on orifices, defined with the aid of Bernoulli's equation. The loses due to fluid friction and the