Washing machine

US6901777B2 · kind B2 · utility

Assignee

• BSH Bosch und Siemens Hausgeräte GmbH · DE

Inventors

• Edwin Bolduan · Berlin, DE
• Hans Günter-Felske · Berlin, DE
• Horst Wiemer · Kleinmachnow, DE

Key dates

• Filing date: Jun 9, 2003
• Grant date: Jun 7, 2005
• Expiry date: Jun 9, 2023

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06F2105/42
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

A washing machine has a laundry drum and a tub and defines an outflow orifice at a lowest point and a second orifice at a point higher. An outflow line fluidically connects to the outflow orifice. A liquid line fluidically connects the outflow line to the second orifice. A turbidity sensor is disposed at the liquid line and responds to a turbidity of liquid flowing therethrough. A pressure controller includes a pressure line connection at the outflow line, a pressure sensor connected to the pressure line connection, a pressure of liquid in the outflow line dependent on a level of liquid in the tub being transmitted from the outflow line to the pressure sensor through the pressure line connection, and the pressure sensor responding to the liquid pressure and controlling a liquid filling level in the tub dependent upon the liquid pressure. In the configuration, the outflow hose has both a connection for a turbidity sensor and a connection for a pressure sensor.