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Filter located in the direct circuit and through which therefore the entire and, for the most part, periodically pulsatile flow rate passes. Filters in the main conduit include the following: Suction

which relies on the piezoresistive effect of semiconductors under a mechanical load. Here, as well as depending on the strain, the measured value is also highly dependent on the temperature. The measu

Control whereby the respective cycle runs automatically, but the following cycle is initiated manually.

Describes the flow rate through laminar flow resistors ( capillary tube , gap). It is assumed, based on a steady-state laminar flow and a constant cross section flow, that the compressive force will b

Friction of seals to be overcome at the start of a movement (Figure H 1) . It is dependent on both the form of the seal (preload) and the seal material and on the service life of the seal: during long

In order for the hydraulic fluid to deliver sufficient lubricating effect in plain bearings and under seals , it must have sufficient wetting ability. This is generally the case with HLPD oils .

Hardness is the resistance of a body to penetration by another. With materials for seals, this is measured as Shore A. For seals , the chosen degree of hardness would be a Shore A score of between 70

Seal combination comprising a ring made of wear-resistance material (mostly filled PTFE) with a smooth or recessed edge sliding surface that is energised by an O-ring behind it (Figure G 27) . The som

Function unit for a contiguous sub-process that is superordinate to the related individual controls or drive controls, but that is subordinate to the master control (DIN 19 237) (Figure G 26) .

Within a larger system several loads (drive elements) are supplied by one drive power pack. The fluid power system with main pipe can combine such loads, which do not interact, because e.g. they come