Filter cleaning assembly for a dishwasher appliance
AssigneeHaier US Appliance Solutions, Inc.
InventorsJohn Edward Dries, Joel Charles Boyer
Life of this patent
Estimating the term…
Abstract
A dishwasher appliance includes a filter screen positioned within a sump for removing soil from recirculated wash fluid. A wash pump assembly includes a wash pump impeller for drawing wash fluid through the filter screen and pumping it through a supply conduit. A filter cleaning assembly includes a filter cleaning manifold positioned proximate the filter screen and defining a wash fluid plenum in fluid communication with the supply conduit. A plurality of cleaning ports are defined by the filter cleaning manifold and are in fluid communication with the wash fluid plenum, the cleaning ports being positioned and oriented for directing wash fluid toward the filter screen.
Claims20
A dishwasher appliance defining a vertical direction, the dishwasher appliance comprising:
- a wash tub that defines a wash chamber;
- a sump for collecting wash fluid;
- a filter screen positioned within the sump, the filter screen defining a filtered region and an unfiltered region;
- a wash pump assembly comprising a wash pump impeller and a supply conduit, the wash pump impeller being configured for urging wash fluid through the filter screen and into the supply conduit;
- and
- a filter cleaning assembly comprising:
- a filter cleaning manifold positioned proximate the filter screen, the filter cleaning manifold defining a wash fluid plenum in fluid communication with the supply conduit;
- and
- a plurality of cleaning ports defined by the filter cleaning manifold and being in fluid communication with the wash fluid plenum, the cleaning ports being positioned and oriented for directing wash fluid toward the filter screen.
A filter cleaning assembly for a dishwasher appliance, the dishwasher appliance comprising a filter screen positioned within a sump and a wash pump assembly for urging wash fluid through a supply conduit, the filter cleaning assembly comprising:
- a filter cleaning manifold positioned proximate the filter screen, the filter cleaning manifold defining a wash fluid plenum in fluid communication with the supply conduit;
- and
- a plurality of cleaning ports defined by the filter cleaning manifold and being in fluid communication with the wash fluid plenum, the cleaning ports being positioned and oriented for directing wash fluid toward the filter screen.
Dependencies are inferred from the claim text.