Dishwasher with controlled dry cycle
First Claim
Patent Images
1. A method of drying dishes in a dishwasher having a closed loop condensation system for extracting liquid from air within a treating chamber of the dishwasher, the method comprising:
- supplying air external to the treating chamber through a dry air conduit and over a heat exchanger of the closed loop condensation system, wherein the dry air conduit includes a portion in overlying relationship with a portion of a moist air conduit and the dry air conduit is fluidly separate from the treating chamber and the moist air conduit, wherein the moist air conduit is fluidly coupled to the treating chamber, and overlying portions of the moist air conduit and the dry air conduit are configured to form the heat exchanger, and the heat exchanger is configured to precipitate moisture from treating chamber air in the moist air conduit;
sensing an external air temperature value, via at least one temperature sensor within the dry air conduit of the closed loop condensation system upstream of the heat exchanger or operably coupled to the portion of the dry air conduit that is in overlying relationship with the portion of the moist air conduit;
sensing a temperature of the treating chamber air to define a treating chamber air temperature;
determining a difference value indicative of a temperature difference between the external air temperature value and the treating chamber air temperature;
setting a circulating time based on the difference value; and
circulating the treating chamber air through the moist air conduit and the heat exchanger and back through the treating chamber in the closed loop condensation system for the circulating time during the supplying of the external air over the heat exchanger while the heat exchanger removes liquid from the circulating treating chamber air.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of drying dishes in a dishwasher having a condensation system for extracting liquid from air within a treating chamber of the dishwasher to control the dry cycle of the dishes in the treating chamber.
-
Citations
20 Claims
-
1. A method of drying dishes in a dishwasher having a closed loop condensation system for extracting liquid from air within a treating chamber of the dishwasher, the method comprising:
-
supplying air external to the treating chamber through a dry air conduit and over a heat exchanger of the closed loop condensation system, wherein the dry air conduit includes a portion in overlying relationship with a portion of a moist air conduit and the dry air conduit is fluidly separate from the treating chamber and the moist air conduit, wherein the moist air conduit is fluidly coupled to the treating chamber, and overlying portions of the moist air conduit and the dry air conduit are configured to form the heat exchanger, and the heat exchanger is configured to precipitate moisture from treating chamber air in the moist air conduit; sensing an external air temperature value, via at least one temperature sensor within the dry air conduit of the closed loop condensation system upstream of the heat exchanger or operably coupled to the portion of the dry air conduit that is in overlying relationship with the portion of the moist air conduit; sensing a temperature of the treating chamber air to define a treating chamber air temperature; determining a difference value indicative of a temperature difference between the external air temperature value and the treating chamber air temperature; setting a circulating time based on the difference value; and circulating the treating chamber air through the moist air conduit and the heat exchanger and back through the treating chamber in the closed loop condensation system for the circulating time during the supplying of the external air over the heat exchanger while the heat exchanger removes liquid from the circulating treating chamber air. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of drying dishes in a dishwasher having a treating chamber with a heat exchanger fluidly coupled to the treating chamber in a closed loop condensation system, the method comprising:
-
determining an absolute humidity for air within the treating chamber; removing moisture from the treating chamber air by circulating treating chamber air from the treating chamber, through the heat exchanger, and back to the treating chamber via a moist air conduit in the closed loop condensation system, wherein the heat exchanger includes a portion of a dry air conduit in overlying relationship with a portion of the moist air conduit and the heat exchanger is configured to precipitate moisture from the treating chamber air in the moist air conduit; supplying air external to the treating chamber through the dry air conduit including over the portion forming the heat exchanger during the circulating of the treating chamber air; sensing an external air temperature value, via at least one temperature sensor within the dry air conduit of the closed loop condensation system upstream of the heat exchanger or operably coupled to the portion of the dry air conduit that is in overlying relationship with the portion of the moist air conduit of the heat exchanger; sensing a temperature of the treating chamber air to define a treating chamber air temperature; determining a difference value indicative of a temperature differential between the treating chamber air temperature and the external air temperature value; setting a circulating time based on the determined absolute humidity and the difference value; and terminating the circulating upon passing of the circulating time. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification