公开(公告)号：EP2324319A2

公开(公告)日：2011-05-25

申请号：EP09787816.9

申请日：2009-07-30

申请人： Gioel Holding S.R.L.

发明人： MONTESE, Ettore

IPC分类号： F28G1/06 ,  F24H1/16 ,  F24H9/00 ,  A47J31/54

CPC分类号： F28G1/06 ,  A47J31/542 ,  A47J31/60 ,  F24H1/162 ,  F24H9/0042

摘要： The invention concerns a ssystem for removal of deposits from a heat exchanger (1), particularly a heat exchanger (1) for a coffee machine, said machine comprising a heating element (2), said heating element being provided with helicoidal channels (3) for passage of water, said system being characterized in that it further provides means for introducing water under pressure within said heating element, through a first end of the heating element (2), and buckling elastic means (5), between the second end of said heating element (2) and the inner wall of the heat exchanger (1), a discharge circular channel (6) being provided on said heating element (2), and on said heat exchanger (2) being provided a passage or hole (7) for discharge of the liquid from inside the channel (3) of the heating element, said elastic means (5) normally keeping the heating element in a position displaced within the heat exchanger (1) toward the end where water enters within the same, water pressure causing the axial displacement of the heating element (2) prevailing against the force of said elastic means (5), until bringing said discharge circular channel (6) in correspondence of the discharge passage or hole (7) of the heat exchanger, the system further providing that, once released the water pressure force, elastic means (5) bring the heating element back in its rest position, making an action of removal of the limestone deposits accumulated along the heating element.