Device and method for filtering particles from a liquid in a dishwasher

US8708160B2 · kind B2 · utility

Assignee

• BSH Bosch und Siemens Hausgeräte GmbH · DE

Inventors

• M. Yavuz Dedegil · Karlsruhe, DE
• Rudiger Eiermann · Staufen, DE
• Helmut Jerg · Giengen an der Brenz, DE

Key dates

• Filing date: Dec 9, 2004
• Grant date: Apr 29, 2014
• Expiry date: Aug 3, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B03D1/1462
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A device is provided for filtering particles from a dishwashing fluid in a dishwashing machine, the dishwashing machine having a dishwashing container in which are disposed items to be subjected to the application of a dishwashing liquid thereto such that particles disentrained from the items during the application of a dishwashing liquid are entrained with the dishwashing liquid. The device includes a container operable to retain therein a predetermined quantity of a liquid mixed with at least one of a foam-forming substance and cleaning agents, the container including an arrangement for producing a flow of a gaseous fluid through the predetermined quantity of the liquid so as to generate a foam layer. The foam layer filters out from a dishwashing liquid passed through the foam layer a substantial fraction of particles entrained with the dishwashing liquid and such filtered-out particles are retained in the foam layer.