Searched for "fluids".

Cylinder designed to be used with hydraulic fluids at generally higher pressures (of around 100 bar and above). Given the relatively low compressibility of the fluid and the low weight of a piston, hydraulic [...] Hydraulic cylinder with piston : The mechanical force is generated by the action of the hydraulic fluid on a piston. With this approach, a single cylinder is able to apply forces ranging from just a few

Hydraulic feedback : which uses a fluid signal, normally the pressure. Electric feedback : from electric signals, which are generally taken from a mechanical (fluid) variable using appropriate measuring [...] characteristic used to distinguish between feedbacks is the physical variable that is to be fed back. In fluid technology, this is primarily the location (path), force (pressure), velocity, acceleration, amongst

characteristics of a fluid or adds new characteristics (CETOP RP 100). The natural substance mineral oil is lacking a series of characteristics for its tasks as a hydraulic fluid; these characteristics

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,

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)

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 .

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

Shock in the pressure fluid due to the release of kinetic energy if the flow rate suddenly stops (e.g. due to closing a valve or a piston moving against a stop). The pressure wave produced in this manner [...] correspondingly if the kinetic energy of the weight must also be retarded as well as the column of fluid.

Ability of a hydraulic fluid to cover the surface over which it is distributed to a greater or lesser degree. Hydraulic fluids with good wetting ability adhere better to the surface. As a consequence the