DISHWASHER MACHINE COMPRISING A SORPTION DRYING DEVICE PROVIDED WITH A SORPTION MATERIAL ADAPTED IN TERMS OF WEIGHT TO THE WETTING QUANTITY IN THE WASHING COMPARTMENT

• US 20110126866A1
• Filed: 07/28/2009
• Published: 06/02/2011
• Est. Priority Date: 07/28/2008
• Status: Abandoned Application

• Current Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Original Assignee: BSH Bosch und Siemens Hausgerã¤Te GmbH (Robert Bosch GmbH)
• Inventors: Paintner, Kai, Jerg, Helmut
• Application Number:
  US13/054,087
• Publication Number:
  US 20110126866A1
• Time in Patent Office: Days
• US Class Current: 134/115.R
• CPC Class Codes: A47L 15/4291 Recovery arrangements, e.g. for the recovery of energy or water
• CPC Class Codes: A47L 15/481 by using water absorbent materials, e.g. Zeolith
• CPC Class Codes: Y02B 40/00 Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

A dishwasher having a washing compartment; a drying device to dry washed items, wherein the drying device has a sorption compartment to hold reversibly dehydratable sorption material; and an air-guiding air ducting channel between the drying device and the washing compartment to generate an air exchange between the washing compartment and the sorption compartment. In the sorption compartment, a weight of the reversibly dehydratable sorption material that is provided to absorb a moisture quantity conveyed by the air exchange is such that the moisture quantity absorbed by the reversibly dehydratable sorption material is less than a liquid quantity applied to items to be washed.

Claims

1-13. -13. (canceled)

14. A dishwasher, comprising:

a washing compartment;

a drying device to dry washed items, the drying device having a sorption compartment to hold reversibly dehydratable sorption material; and

an air-guiding air ducting channel between the drying device and the washing compartment to generate an air exchange between the washing compartment and the sorption compartment;

wherein, in the sorption compartment, a weight of the reversibly dehydratable sorption material that is provided to absorb a moisture quantity conveyed by the air exchange is such that the moisture quantity absorbed by the reversibly dehydratable sorption material is less than a liquid quantity applied to items to be washed.

15. The dishwasher of claim 14, wherein the dishwasher is a household dishwasher;

wherein the reversibly dehydratable sorption material is zeolite; and

wherein the liquid quantity is liquid quantity applied in a clear rinsing step.

16. The dishwasher of claim 15, wherein the weight of the reversibly dehydratable sorption material in the sorption compartment is such that the moisture quantity absorbed by the reversibly dehydratable sorption material corresponds essentially to a wetting quantity with which the items to be washed are wetted at the end of the clear rinsing step.

17. The dishwasher of claim 14, wherein the moisture quantity that is absorbed is between 4% and 25% of the liquid quantity applied to the items to be washed.

18. The dishwasher of claim 17, wherein the moisture quantity that is absorbed is between 5% and 15% of the liquid quantity applied to the items to be washed.

19. The dishwasher of claim 14, wherein the weight of the reversibly dehydratable sorption material in the sorption compartment is between 0.2 kg and 5 kg.

20. The dishwasher of claim 19, wherein the weight of the reversibly dehydratable sorption material in the sorption compartment is between 0.3 and 3 kg.

21. The dishwasher of claim 20, wherein the weight of the reversibly dehydratable sorption material in the sorption compartment is between 0.5 kg and 2.5 kg.

22. The dishwasher of claim 14, wherein the washing compartment has a base, and wherein the sorption compartment is accommodated in a base assembly underneath the base of the washing compartment.

23. The dishwasher of claim 14, wherein the washing compartment has an outlet and an inlet, and wherein the drying device is connected via the air-guiding air ducting channel to the outlet and the inlet of the washing compartment.

24. The dishwasher of claim 23, wherein, to a predetermined extent, the air-guiding air ducting channel is arranged outside the washing compartment.

25. The dishwasher of claim 14, wherein the air-guiding air ducting channel has an outlet-side tubular section that is connected to an inlet of the washing compartment in a region close to a base of the washing compartment.

26. The dishwasher of claim 14, wherein the air-guiding air ducting channel has an inlet-side tubular section that is connected to an outlet of the washing compartment above a base of the washing compartment.

27. The dishwasher of claim 26, wherein the inlet-side tubular section is connected to the outlet of the washing compartment in a region near the top of the base of the washing compartment.

28. The dishwasher of claim 26, wherein the inlet-side tubular section of the air-guiding air ducting channel enters the sorption compartment of the drying device in a region near the base of the washing compartment in such a way that an inflow direction of the air-guiding air ducting channel is deflected into a through-flow direction of the sorption compartment.

29. The dishwasher of claim 28, wherein the inflow direction is deflected by approximately 90°

.

30. The dishwasher of claim 14, wherein a blower that generates airflow is provided upstream of the drying device when viewed in flow direction of the airflow.

31. The dishwasher of claim 30, wherein, viewed in the flow direction, an associated heating element for desorption is provided between the blower and the drying device.

32. The dishwasher of claim 14, wherein in the sorption compartment, when viewed in flow direction, a heating element is provided upstream of a sorption unit that contains the reversibly dehydratable sorption material for desorption of the reversibly dehydratable sorption material, and wherein the heating element is part of the sorption compartment.