Automatic dishwasher

Patent metadata

Field	Value
Publication number	US-9526395-B2
Application number	US-201414187356-A
Country	US
Kind code	B2
Filing date	Feb 24, 2014
Priority date	Feb 26, 2013
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

An automatic dishwasher includes a heat pump device for heating washing liquid. The heat pump device includes an evaporator, a fan adapted to supply ambient air to the evaporator, and a device for wet dust collection connected upstream of the evaporator in the flow direction of the ambient air.

First claim

What is claimed is:

1. An automatic dishwasher comprising:
a housing;
a washing compartment disposed within the housing and configured to receive washing liquid;
a washing compartment door configured to seal the washing compartment;
a heat pump device for heating the washing liquid, the heat pump device including:
an evaporator;
a fan adapted to supply ambient air to the evaporator; and
a wet dust collection device connected upstream of the evaporator in a flow direction of the ambient air, the wet dust collection device including a water trough disposed underneath the evaporator;

a fresh water supply configured to supply fresh water to the water trough; and
an air inlet including guide surfaces for the ambient air, at least sections of the guide surfaces being adapted to run towards a water surface of the supplied fresh water in the water trough.

2. The automatic dishwasher recited in claim 1 , wherein the water trough of the heat pump device acts as a condensate trough.

3. A method for operating the automatic dishwasher according to claim 1 , the automatic dishwasher including a water trough, the method comprising:
feeding the fresh water into the water trough at the beginning of a wash program.

4. The method recited in claim 3 further comprising routing the fresh water using fins of the evaporator.

5. The method recited in claim 4 further comprising spraying the fresh water over the fins.

6. The method recited in claim 4 , wherein the volume of fresh water used is in a range between 0.1 liters and 0.5 liters.

7. The method recited in claim 3 further comprising directing water in the water trough into the washing compartment of the automatic dishwasher during the course of the wash program.

8. The method recited in claim 4 , wherein the volume of fresh water used is in a range between 0.2 liters and 0.4 liters.

Assignees

• Miele & Cie

Inventors

• Bertram Andre
• Dahms Tobias

Classifications

• A47L15/488

  Connections of the tub with the ambient air, e.g. air intake or venting arrangements · CPC title

• A47L15/0042 Primary

  Desorption phases of reversibly dehydrogenated drying material, e.g. zeolite in a sorption drying system · CPC title

• A47L15/4291

  Recovery arrangements, e.g. for the recovery of energy or water · CPC title

• A47L15/0047 Primary

  Energy or water consumption, e.g. by saving energy or water · CPC title

• Y02B30/52

  Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency · CPC title