Method of operating a dishwasher

Patent metadata

Field	Value
Publication number	US-10986977-B2
Application number	US-202016934515-A
Country	US
Kind code	B2
Filing date	Jul 21, 2020
Priority date	Jan 12, 2018
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

A method for removing moisture from moist air in an appliance, such as a treating chamber of a dishwasher, wherein a drying system includes a condensing system and heat exchange systems that enhance condensation with both ambient air and cold water. The method includes storing cold water for use during a cycle of operation; recirculating the moist air in the treating chamber through a condenser; during the recirculating, flowing ambient air over the condenser; and during the recirculating and after the flowing ambient air, flowing the cold water over the condenser.

First claim

What is claimed is:

1. A method of removing moisture from moist air within a treating chamber of a dishwasher, the method comprising:
storing cold water for use during a cycle of operation;
recirculating the moist air in the treating chamber through a condenser;
during the recirculating, flowing ambient air over the condenser; and
during the recirculating and after the flowing ambient air, flowing the cold water over the condenser.

2. The method of claim 1 wherein at least a portion of the recirculating the moist air is conducted without addition of ambient air to the moist air.

3. The method of claim 2 further comprising adding ambient air with the moist air to form a mixture of moist air and ambient air.

4. The method of claim 3 wherein the mixture is recirculated through the condenser.

5. The method of claim 3 wherein the addition of the ambient air occurs prior to at least one of the flowing ambient air over the condenser or flowing cold water over the condenser.

6. The method of claim 3 wherein the addition of the ambient air occurs after to at least one of the flowing ambient air over the condenser or flowing cold water over the condenser.

7. The method of claim 1 wherein the flowing ambient air continues until a predetermined threshold is satisfied.

8. The method of claim 7 wherein the predetermined threshold comprises at least one of an air temperature difference between the moist air and the ambient air or a moisture content of the moist air.

9. The method of claim 7 wherein the predetermined threshold comprises at least one of a temperature difference between the moist air and the cold water or a moisture content of the moist air.

10. The method of claim 1 wherein the flowing ambient air over the condenser comprises directly contacting the condenser with the ambient air.

11. The method of claim 1 wherein the flowing cold water over the condenser comprises directly contacting the condenser with the cold water.

12. The method of claim 1 wherein the flowing the cold water over the condenser comprises flowing the cold water through a conduit in thermal contact with the condenser.

13. The method of claim 1 wherein the flowing the cold water comprises supplying the cold water from a household cold water supply.

14. The method of claim 13 further comprising storing the cold water from the household cold water supply in a reservoir within the dishwasher.

15. The method of claim 14 wherein the flowing the cold water over the condenser further comprises recirculating the cold water from the reservoir through a conduit in thermal communication with the condenser and back to the reservoir.

Assignees

• Whirlpool Co

Inventors

• Vallejo Alvaro
• Amos Sylvan J

Classifications

• A47L15/4214

  Water supply, recirculation or discharge arrangements; Devices therefor · CPC title

• B01D53/265

  by refrigeration (condensation) · CPC title

• A47L15/483 Primary

  by using condensers · CPC title

• B01D5/0084

  Feeding or collecting the cooling medium (B01D5/0087 takes precedence) · CPC title

• B01D5/0075

  with heat exchanging (B01D5/0039 takes precedence) · CPC title