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design of hydraulic systems

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Flow Dividers

A flow divider is made up of two or more modular elements( sections) with gears mechanically linked by an internal shaft that causes them to turnat the same speed.

Unlike multiple pumps, in which the input power is mechanical (shaft connected to a motor), in a flow divider the input power is of a fluid-mechanical nature, i.e a flow of oil under pressure parallelly supplies the modular elements,which are in turn connected to the hydraulic circuits serving the users.

The portion of flow utilized by each element is solely determined by its nominal flow rate.Therefore, unlike standard static dividers with variable ports, the flow dividers do not causes dissipation and are also so much more precise.

 The use of a flow dividers in a system reduces the number of pomps necessary as well as the associated individual mechanical power takeoffs and complex mechanical couplers( with greater losses).

Leaving aside small losses for the time being, at any given moment the total input power is equal to the sum of the powers supplied by all elements making up the flow divider.

Therefore, if in a interval of time the power required by a hydraulic circuit is equal to zero(inactive drained circuit), the power supplied by the element feeding that circuit becomes available for the other elements, which may use it in their own circuits, also operating ah higher pressures than the intake pressure.



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