PRE-SOAK OPTION FOR DISHWASHERS

摘要

A dishwasher includes an independent presoak system which may be activated by a user of the dishwasher. The dishwasher presoak system utilizes a storage tank, supply tubes, and set of nozzles which are independent from components used in a washing cycle such that a presoak detergent is applied to items placed within a washing compartment of the dishwasher without being diluted by a standard wash cycle. As part of the presoak system, the dishwasher features a detection system which allows the user to select an automatic presoak operating state whereby the dishwasher utilizes a sensor to determine if items placed into the washing compartment are sufficiently dirty to need a presoak cycle prior to a washing cycle. The dishwasher further relies on a control system to analyze samples taken of the dirtiness levels of items placed within the washing compartment and determine whether a presoak option is necessary or suggested.

主权项

1. A household appliance, comprising:
a housing, the housing having a washing compartment; a first detergent storage tank, the first detergent storage tank being configured to contain washing detergent; at least a first supply tube; at least a first spraying device, the first spraying device being configured to spray the contents of the at least one supply tube into the washing compartment; a second detergent storage tank, the second detergent storage tank being configured to contain a presoak detergent; at least a second supply tube; wherein the first supply tube is fluidly connected with the first detergent storage tank, and wherein the second supply tube is fluidly connected with the second detergent storage tank; at least a second spraying device comprising a plurality of stationary sprayers arranged to be protruding from at least a vertical internal wall of the appliance, the second spraying device being configured to spray the contents of the second supply tube into the washing compartment; a control system including a controller configured to run a presoak cycle program prior to running a washing cycle program; wherein the controller is configured to utilize the contents of the second detergent storage tank during the presoak cycle.