| 摘要 |
Dishwashing machine comprising a programme sequence control unit, at least two rotating spray arms, a circulation pump ( 3 ) capable of operating even intermittently, a distribution valve ( 10 ) arranged directly on the delivery-side section ( 6 ) of the pump ( 3 ) and having at least a first and a second outlet ( 11, 13 ) which communicate with a respective rotating spray arm. The shutter member ( 20 ) of the valve, in accordance with the flow direction of the liquor at the delivery side ( 6 ) of the pump, is adapted to selectively displace both between said first and second outlets ( 11, 13 ) and into an intermediate seat ( 15 ) situated between the same outlets. The duration of the pauses in the intermittent operation of the pump ( 3 ), as controlled by the programme sequence control unit, is correlated to the actual pressure at the inlet of the valve ( 10 ) by the action of means ( 21 ) provided to monitor the localized pressure of the liquor.
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