Fluid circulation system for dishwasher appliances
Fluid circulation systems for dishwasher appliances are provided. A dishwasher appliance includes a tub that defines a wash chamber. A fluid circulation system includes a sump for receiving fluid from the wash chamber. The sump includes a chamber having a sidewall and a base wall. The fluid circulation system further includes a pump, the pump including an impeller disposed within the chamber. The fluid circulation system further includes a filter at least partially disposed within the chamber and surrounding the impeller, the filter including a sidewall, the sidewall defining a plurality of perforations extending therethrough. The fluid circulation system further includes a shelf cantilevered from the sidewall of the sump towards the filter.
1. A fluid circulation system for a dishwasher appliance, the dishwasher appliance comprising a tub that defines a wash chamber, the fluid circulation system comprising:
a sump for receiving fluid from the wash chamber, the sump comprising a chamber having a sidewall and a base wall;
a pump, the pump comprising an impeller disposed within the chamber; and
a filter at least partially disposed within the chamber and surrounding the impeller, the filter comprising a sidewall, the sidewall defining a plurality of perforations extending therethrough; and
a shelf cantilevered from the sidewall of the sump towards the filter, wherein the shelf comprises a ledge and a support member, the ledge extending between a first end and a second end, the first end contacting the sidewall, and second end spaced from the sidewall.
2. The fluid circulation system of claim 1 , wherein the shelf is cantilevered from a top end of the sidewall of the sump.
3. The fluid circulation system of claim 1 , wherein the support member extends from the first end and contacts the sidewall.
4. The fluid circulation system of claim 1 , wherein a gap between the second end and the sidewall of the filter is between 0.06 inches and 0.5 inches.
5. The fluid circulation system of claim 1 , wherein the gap is between 0.08 inches and 0.3 inches.
6. The fluid circulation system of claim 1 wherein a gap between the second end and the sidewall of the filter is less than a gap between the sidewall of the sump and the sidewall of the filter.
7. The fluid circulation system of claim 1 , wherein the shelf further comprises a beveled edge at the second end.
8. The fluid circulation system of claim 1 , wherein the shelf is integral with the sump.
9. The fluid circulation system of claim 1 , wherein the shelf is a separate component from the sump and is connected to the sump.
10. A dishwasher appliance, comprising:
a cabinet defining an interior;
a tub disposed within the interior and defining a wash chamber for the receipt of articles for cleaning; and
a fluid circulation system, the fluid circulation system comprising:
a sump for receiving fluid from the wash chamber, the sump comprising a chamber having a sidewall and a base wall;
a pump, the pump comprising an impeller disposed within the chamber; and
a filter at least partially disposed within the chamber and surrounding the impeller, the filter comprising a sidewall, the sidewall defining a plurality of perforations extending therethrough; and
a shelf cantilevered from the sidewall of the sump towards the filter, wherein the shelf comprises a ledge and a support member, the ledge extending between a first end and a second end, the first end contacting the sidewall, and second end spaced from the sidewall.
11. The dishwasher appliance of claim 10 , wherein the shelf is cantilevered from a top end of the sidewall of the sump.
12. The dishwasher appliance of claim 10 , wherein the support member extends from the first end and contacts the sidewall.
13. The dishwasher appliance of claim 10 , wherein a gap between the second end and the sidewall of the filter is between 0.06 inches and 0.5 inches.
14. The dishwasher appliance of claim 10 , wherein the gap is between 0.08 inches and 0.3 inches.
15. The dishwasher appliance of claim 10 , wherein a gap between the second end and the sidewall of the filter is less than a gap between the sidewall of the sump and the sidewall of the filter.
16. The dishwasher appliance of claim 10 , wherein the shelf further comprises a beveled edge at the second end.
17. The dishwasher appliance of claim 10 , wherein the shelf is integral with the sump.
18. The dishwasher appliance of claim 10 , wherein the shelf is a separate component from the sump and is connected to the sump.
19. A fluid circulation system for a dishwasher appliance, the dishwasher appliance comprising a tub that defines a wash chamber, the fluid circulation system comprising:
a sump for receiving fluid from the wash chamber, the sump comprising a chamber having a sidewall and a base wall;
a pump, the pump comprising an impeller disposed within the chamber; and
a filter at least partially disposed within the chamber and surrounding the impeller, the filter comprising a sidewall, the sidewall defining a plurality of perforations extending therethrough; and
a shelf cantilevered from the sidewall of the sump towards the filter, wherein the shelf comprises a ledge extending between a first end and a second end, the first end contacting the sidewall, the second end spaced from the sidewall, and wherein the shelf further comprises a beveled edge at the second end.
20. The fluid circulation system of claim 19 , wherein the shelf is cantilevered from a top end of the sidewall of the sump.