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1. (WO2001082769) DISHWASHING MACHINE WITH IMPROVED WASHING LIQUOR DISTRIBUTION VALVE

Pub. No.:    WO/2001/082769    International Application No.:    PCT/EP2001/001798
Publication Date: Nov 8, 2001 International Filing Date: Feb 19, 2001
IPC: A47L 15/42
A47L 15/46
Applicants: ELECTROLUX ZANUSSI S.P.A.
FAVRET, Ugo
Inventors: FAVRET, Ugo
Title: DISHWASHING MACHINE WITH IMPROVED WASHING LIQUOR DISTRIBUTION VALVE
Abstract:
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.