Electric dishwashing machine with circulation pump and rotary spray arm with pseudo-random selection of different spray jet groups

摘要

The dishwashing machine has a circulation pump and a spray system having at least 2 groups of spray jets (4,5) provided by a rotary spray arm (1), with independent control of the fluid supplied to the different spray jet groups (2,3). A device (6) is provided at the rotation axis (7) of the spray arm for selection of one or other spray jet group in dependence on the pressure of the rinsing liquid and/or the spray arm rotation.