发明名称 Water heater with an electrical heating element connected to alternating current
摘要 Undesirable calcareous deposits (scale) on the electrical heating element (2) are to be avoided. To this end, the latter is made of anodically passivable material and in addition connected to a DC source (5). The electrical heating element (2) then acts as an anode on which no scale is deposited. <IMAGE>
申请公布号 DE3105922(A1) 申请公布日期 1982.09.09
申请号 DE19813105922 申请日期 1981.02.18
申请人 BUDERUS AG 发明人 GROSS,ERWIN,DIPL.-ING.;STILLER,NORBERT,DR.DIPL.-PHYS.
分类号 F24H9/00;F24H9/18;(IPC1-7):F24H9/20 主分类号 F24H9/00
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