Filter cleaning apparatus and method for dishwashing appliance
AssigneeMidea Group Co., Ltd.
InventorJoel Boyer
Life of this patent
Estimating the term…
Abstract
A dishwashing appliance with a manifold for removing dishwashing sediment from recirculated dishwashing fluid is provided. The dishwashing appliance may include a tub, a spray system, a recirculation pump, a drainage pump, a manifold, and/or a shrouded filtration assembly in fluid communication with the spray system, manifold, the recirculation pump, and/or the drainage pump. The shrouded filtration assembly may include a manifold, a filter frame, and/or a sump housing. The manifold may include one or more sprayers.
Claims20
A dishwashing appliance comprising:
- a dishwashing tub defining a dishwashing chamber having a tub floor therein;
- a manifold positioned adjacent an opening in the tub floor of the dishwashing chamber, wherein the manifold includes one or more sprayers;
- a filter frame depending downwardly from the manifold, wherein the filter frame includes an upstream side and a downstream side, wherein the dishwashing fluid is filtered inwardly through the filter frame from the upstream side to the downstream side;
- and
- wherein the one or more sprayers of the manifold spray outwardly through the filter frame, opposite to the dishwashing fluid, from the downstream side to the upstream side.
A filtration assembly for a dishwashing appliance including a tub defining a dishwashing chamber having a tub floor, the filtration assembly positioned at bottom of the dishwashing chamber through an opening formed by the tub floor thereof, the filtration assembly comprising:
- a stationary manifold positioned at top of the filtration assembly and above the opening of the tub floor to form a gap therebetween around a periphery of the manifold to allow the dishwashing fluid to flow into the filtration assembly, and wherein the manifold includes one or more sprayers;
- a filter frame coupled to the manifold defining a filtration chamber, the dishwashing fluid flows through the filter frame into the filtration chamber for filtration;
- a sump housing having an open top through which the filter frame is disposed and a base portion having a recirculation intake port in downstream communication with the filtration chamber, and wherein the sump housing defines a debris collection chamber, the dishwashing fluid flows to the debris collection chamber outside the filtration chamber;
- and
- wherein the one or more sprayers of the manifold sprays away from the filtration chamber and in a direction upstream of the filtration chamber towards the debris collection chamber.
A method of cleaning a filter frame of a dishwashing appliance comprising:
- providing a manifold fixedly coupled to a filter frame, wherein the filter frame depends downwardly from the manifold, wherein the filter frame includes an upstream side and a downstream side, and wherein the manifold includes one or more sprayers positioned within a filtration chamber defined by the manifold and adjacent the downstream side of the filter frame;
- filtering dishwashing fluid through the upstream side of the filter frame to the downstream side of the filter frame into the filtration chamber;
- and
- spraying dishwashing fluid from the one or more sprayers of the manifold through the downstream side of the filter frame to the upstream side of the filter frame out of the filtration chamber.
Dependencies are inferred from the claim text.