Filtration efficiency in general
Ability of a filter to retain specific test contamination in a hydraulic fluid with a specified contamination concentration under defined test conditions (CETOP RP 100). As the test method for filtration
Action of multiple resistance
As with electrics, a distinction is made in fluid technology between series and parallel resistances. For series circuits - as is the case for pipelines - the individual resistances are added ( series
Flapper-nozzle system
flapper are firmly connected together and are supported by a thin-walled flexible tube. Hydraulic fluid flows continuously from Ps through the two fixed throttles to the nozzles; through the nozzles to
Dissipated heat
power lost by a hydraulic system is converted into heat, which is largely absorbed by the pressure fluid . It is comprised of the pressure losses caused by pipe friction and flow deflections, leakage losses
Filter in main conduit
secondary flow (f), as the separate circuit is selected in which a separate filter pump presses the fluid through the filter and mostly also through an oil cooler, independently of the working cycle. See
Rotary transfer joints
Rotary joint for the flow of hydraulic fluid between a stationary and rotating part of the machine. Multiway rotary transfer joints : Rotary transfer joints for supplying one or more loads with pressurised
Mounting wall
its easy access. The disadvantage is how the pressure and delivery flow pulsation in the pressure fluid cause higher noise emissions at the wall, not to mention the large amount of space taken up, the extensive
Nominal size
The details relating to the nominal size of devices used in fluid technology are key variables which do not refer to units or dimensions and do not have to be associated with any numerical variable for
Scraper
Valve that can shut-off the flow in both directions. In fluid technology this valve is implemented in then form of a seated or ball valve. One of the most important sources of contamination in hydraulic
Secondary measures (in the case of sound)
from resonating. Measures to reduce the transmission of pressure and flow rate fluctuations in the fluid. This includes the use of hydraulic accumulators or expandable hoses for oscillation damping and silencers