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    • 10. 发明授权
    • Method of operating a dishwasher pump and filtration system
    • 操作洗碗机泵和过滤系统的方法
    • US07404864B2
    • 2008-07-29
    • US10929787
    • 2004-08-31
    • Rodney M. Welch
    • Rodney M. Welch
    • B08B3/02
    • A47L15/4208A47L15/4204A47L15/4225A47L15/4227
    • A dishwasher includes a pump assembly having a multi-stage filtering arrangement which functions to trap soil particles contained in a washing fluid to reduce the number of fresh water fills required to perform a washing operation. All of the washing fluid is initially directed over a filter plate. A first portion of the washing fluid passes the filter plate into a pumping chamber, while a second, soil laden portion, enters a first filter chamber. The second portion is then directed through a medium filter into the intake chamber. The filtered washing fluid is pumped through a conduit to wash arms that spray the washing fluid onto kitchenware. The conduit includes a sampling port which directs a portion of the washing fluid to a second filtering compartment having a fine mesh screen. At the end of the washing operation, the washing water, along with the soil is expelled from the dishwasher.
    • 洗碗机包括具有多级过滤装置的泵组件,其功能是捕集包含在洗涤流体中的土壤颗粒,以减少执行洗涤操作所需的淡水填充物的数量。 所有的洗涤液最初都被引导过滤板。 洗涤流体的第一部分将过滤板通过泵送室,而第二个负载的土壤部分进入第一过滤室。 然后将第二部分引导通过介质过滤器进入进气室。 过滤的洗涤液被泵送通过导管以洗涤将洗涤液喷射到厨具上的臂。 导管包括将洗涤液的一部分引导到具有细筛网的第二过滤隔室的取样口。 在洗涤操作结束时,洗涤水与土壤一起从洗碗机中排出。