A method for clearing the filter in the liquid circulation system of domestic appliances has a soundwave generator positioned in the sump

摘要

An appliance, such as dish or clothes washing machines (1), has a circulation pump (3) to spray cleaning liquid over the items and, if necessary, a drain pump (33). A filter (5) blocks solid or clogged materials from reaching the pump and an infrasound or ultrasound generator (4) vibrates the filter.