In the case of the accumulator supplies the size of the hydraulic accumulator is determined using the pressure oil requirements of all consumers dependent on the accumulator during a working cycle and is determined by the size of the flow rate of the pump (= usable volume V N).
To assess the flow requirements per working cycle, it is practical to create an accumulator consumption diagram (Figure S 69). The pump must be selected with a certain size in order to replace the removed usable volume before the end of the working cycle:
The factor k (approx. 1.25) serves to relieve the burden on the pump during part of the working cycle.
Figure S 69: Accumulator consumption diagram