Into the hydraulic module block there are 5 blocks relevant to accumulators, the pressure relief, the pressure reducer, the filter. An accumulator block shall be present in each model otherwise some errors can arise, with the exception of the models where the ‘Hydraulic Supply’ block is utilised. The pressure relief shall be introduced in case of fixed displacement pump, to regulate the pressure. The pressure reducer can be used in case some actuation systems operate at a lower pressure with respect to the pump pressure; this block includes a pressure reducer and an accumulator.

One of the two accumulator blocks takes into account the effect of the thermal exchange between the hydraulic fluid and the gas. If the heat exchange coefficient are not known, the adiabatic accumulator block can be used.

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