Cross-flow filtration system
AssigneeWhirlpool Corporation
InventorDENNIS L. KEHL
Life of this patent
Estimating the term…
Abstract
An apparatus and method for filtering working fluid in an appliance with a cross-flow filter located within a recirculation circuit.
Claims20
A method of filtering working fluid in an appliance having a wash chamber, a recirculation circuit for recirculating working fluid in the wash chamber, and a cross-flow filter located within the recirculation circuit for filtering particles from the working fluid, the method comprising:
- dislodging particles from the cross-flow filter by recirculating working fluid through the recirculation circuit such that the working fluid passes along the cross-flow filter at a rate sufficient to dislodge particles from the cross-flow filter.
A method of filtering working fluid in a dishwasher having a wash chamber, a recirculation circuit for recirculating working fluid in the wash chamber, and a cross-flow filter located within the recirculation circuit for filtering particles from the working fluid, the method comprising:
- dislodging particles from the cross-flow filter by mechanically enhancing a shear force associated with the working fluid passing along the cross-flow filter.
An appliance comprising:
- a washing chamber for holding articles to be washed;
- a recirculation circuit for recirculating working fluid in the wash chamber;
- a cross-flow filter located within the recirculation circuit for filtering particles from the working fluid;
- and
- a pump for recirculating the working fluid at a rate sufficient to dislodge particles from the cross-flow filter.
An appliance comprising:
- a washing chamber for holding articles to be washed;
- a recirculation circuit for recirculating working fluid in the wash chamber;
- a cross-flow filter located within the recirculation circuit for filtering particles from the working fluid;
- and
- a rotating disc spaced from the cross-flow filter for enhancing a shear force associated with the working fluid passing along the cross-flow filter.
Dependencies are inferred from the claim text.