| 摘要 |
The present invention relates to a device for supplying liquids comprising heating elements ( 3 ) heating up said liquids and an electric drive pumping group ( 101 ). The characteristic is that the pumping group (101) comprises an intake ( 102 ) and at least a first and second intake duct ( 8 a- 8 h , 8 c- 8 d , 8 e- 8 f), and is further equipped with an impeller ( 11 a , . . . 11 c), said first and second intake duct ( 8 a- 8 b , 8 c- 8 d , 8 e- 8 f) being selectively activated according to the direction of rotation of said impeller ( 11 a , . . . , 11 c) of the pumping group ( 4 a , . . . , 4 c).
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