Washing machine comprising a controllable water supply and method for operating a washing machine of this type

• US 8,459,068 B2
• Filed: 06/11/2007
• Issued: 06/11/2013
• Est. Priority Date: 06/29/2006
• Status: Active Grant

• Current Assignee: BSH Hausgeraete GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Inventors: Bolduan, Edwin, Czyzewski, Gundula, Schulze, Ingo, Wiemer, Horst
• Primary Examiner(s): Kornakov, Michael
• Assistant Examiner(s): COLEMAN, RYAN L
• Application Number:
  US12/308,842
• Publication Number:
  US 20090293202A1
• Time in Patent Office: 2,192 Days
• Field of Search: None
• US Class Current: 68/17.R
• CPC Class Codes: D06F 39/028 Arrangements for selectively supplying water to detergent compartments

Abstract

A washing machine with a controllable fresh water intake for at least two detergent chambers which are located inside a housing of a detergent flushing device and which have an outlet for water or the mixture of detergent and water which opens onto a bottom surface of the housing which is inclined towards an outlet connection for a detergent supply line to the tub of the washing machine in which a laundry drum is mounted at least approximately horizontally, the washing machine comprising partial surfaces into which the bottom surface of the housing is divided, the partial surfaces including inclinations differing from the horizontal, the inclinations being differently directed to at least one of the other partial surfaces and each partial surface is assigned to at least one detergent chamber and includes an outlet connection in a lowest region of the partial surface.

Claims

1. A washing machine with a controllable fresh water intake for at least two detergent chambers which are located inside a housing of a detergent flushing device and which have an outlet for water or the mixture of detergent and water which opens onto a bottom surface of the housing which is inclined towards an outlet connection for a detergent supply line to the tub of the washing machine in which a laundry drum is mounted at least approximately horizontally, the housing comprising partial surfaces into which the bottom surface of the housing is divided, the partial surfaces of the housing including inclinations differing from the horizontal, the inclination of one of the partial surfaces being different than the inclination of another of the partial surfaces, and each partial surface is assigned to at least one detergent chamber, the housing including a first single dedicated outlet connection for a first detergent chamber provided to one of the partial surfaces of the bottom surface and a second single dedicated outlet connection for a second detergent chamber provided to another one of the partial surfaces of the bottom surface, wherein each inclined partial surface has a higher end and a lower end, and each higher end leads directly to each respective single dedicated outlet.

2. The washing machine according to claim 1 wherein the partial surfaces are separated from one another by elevated ribs.

3. The washing machine according to claim 1 and further comprising more than two detergent chambers wherein the at least two detergent chambers are assigned to a common partial surface of the partial surfaces.

4. The washing machine according to claim 3 wherein the detergent flushing device comprises a first chamber for pre-wash agent, a second chamber for main detergent and a third chamber for an additive and wherein the first chamber and the third chamber are assigned to a common partial surface of the partial surfaces.

5. The washing machine according to claim 1 wherein washing machine includes a tub and the first and second outlet connections are connected to the tub in different regions.

6. The washing machine according to claim 5 wherein one of the outlet connections is guided at a rear region of the tub.

7. The washing machine according to claim 5 wherein one of the outlet connections is guided in a front region of the tub.

8. The washing machine according to claim 5 wherein the first outlet connection is connected to an outer casing of the tub using a detergent supply line in an upper region of the tub.

9. The washing machine according to claim 5 and further comprising a collar for liquid-tight connection of front openings of the tub and the housing wherein the second outlet connection is connected to the collar using a detergent supply line in an upper region of the tub.