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(11) | EP 1 162 300 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Discharge unit for washing machine |
| (57) A discharge unit for washing machine provided with a washing tank is described. The
unit comprises a filter container (1) connected with the tank and in which a filter
(2) for the filtering of the washing water coming from the tank is housed. The filter
container (1) is fixedly mounted to a discharge pump container (100) provided with
an impeller (9) for the conveying of the filtered washing water towards a discharge
duct (7). Between the filter (2) and the impeller (9) a wall (4) is arranged that
is provided with an opening (5) with which a non-return valve is associated (10, 20)
which maintains said opening (5) open by means of action of the same washing water
during a normal operation of discharge of the washing water and which maintains said
opening (5) closed by the action of the back-flow water from the discharge pipe (7)
at the end of the discharge operation. |