Method for operating a dishwasher, and dishwasher

US9914155B2 · kind B2 · utility

Assignee

• ILLINOIS TOOL WORKS INC. · US

Inventors

• Harald Disch · Elzach, DE
• Dietrich Berner · Schwäbisch Gmünd, DE
• Ralf Schmidt · Freising, DE
• Reiner Worz · Pfaffenhofen an der Ilm, DE
• Peter Maier-Laxhuber · Munich, DE

Key dates

• Filing date: Jun 5, 2014
• Grant date: Mar 13, 2018
• Expiry date: Oct 23, 2034

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B08B2205/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method is provided for operating a dishwasher (1) in the form of a batch dishwasher, which has a treatment chamber (2) for accommodating washware to be cleaned. Provision is made, during an adsorption phase, for air to be conducted out of the treatment chamber (2) through a sorption unit (41), which contains a reversibly dehydratable dry material, in such a way that the dry material absorbs moisture from the air stream, wherein the air is then returned to the treatment chamber (2). Provision is further made, during a desorption phase, for the dry material of the sorption unit (41) to be heated in such a way that moisture is desorbed from the dry material as steam. During the desorption phase, the sorption unit (41) is subjected to forced ventilation only to such an extent that recondensation of desorbed steam in the sorption unit (41) itself is effectively prevented.