Dishwasher Manual Program Adjustment for Stain Prevention and Drying
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Solution Overview
Problem
Existing dishwashers often fail to meet user requirements for high cleaning performance, efficient drying, low water and energy consumption, and prevention of stains on cleaned items, with factory-set measures limiting user flexibility.
Innovation Solution
A dishwasher with a control device allowing manual adjustment of washing programs, including additional partial cycles and adaptation measures such as increased rinsing liquid, rinse aid addition, extended heating phases, and modified pumping sequences to enhance shine and drying effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If factory-set measures are implemented to prevent stains and improve drying, then cleaning performance and drying efficiency are improved, but user flexibility and adaptability are reduced
Solution Approach 1:
The dishwasher allows dynamic adjustment of washing parameters through a control unit that enables users to manually modify rinsing program parameters. The system transitions from fixed factory-set measures to dynamically adjustable settings, allowing users to adapt the rinsing program to their specific needs while maintaining the ability to prevent stains and improve drying when desired.
Solution Approach 2:
The invention enables parameter changes in the rinsing program by allowing users to manually adjust various parameters such as rinsing liquid volume, temperature, and timing. This gives users control over the washing process parameters to optimize for different scenarios, resolving the contradiction between having fixed effective measures and user adaptability.
2Reliability
If additional rinsing cycles and extended heating phases are implemented, then shine and drying results are improved, but energy consumption and cycle time increase
Solution Approach 1:
The system allows users to dynamically adjust the intensity and duration of heating phases and rinsing cycles. Users can select from different program variations that offer different levels of shine and drying performance at different energy costs, enabling them to balance energy consumption against desired outcomes based on their specific needs.
Solution Approach 2:
The invention provides options for partial implementation of intensive rinsing and heating measures. Users can choose to apply enhanced measures only when needed rather than always using maximum intensity, allowing them to achieve adequate results with moderate energy consumption or opt for excessive action when superior shine and drying are required.
3Reliability
If intensive rinsing programs are used to prevent stains, then cleaning performance is improved, but water consumption increases
Solution Approach 1:
Users can manually adjust parameters related to water volume and rinsing intensity. The system provides different program variations that use different amounts of water, allowing users to select the appropriate water consumption level based on their needs while maintaining effective stain prevention when higher water usage is chosen.
Solution Approach 2:
The invention enables users to apply intensive rinsing measures partially or excessively based on their requirements. Users can choose to use more water for intensive rinsing when stain prevention is the priority, or opt for reduced water consumption when adequate cleaning is sufficient, providing flexibility in balancing water usage against stain prevention effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides improved shine and drying results on dishes by allowing users to customize wash cycles based on their needs, reducing stains and energy consumption while maintaining effective cleaning.
Implementation Method 1
a circulation pump for circulating wash liquid can be assigned to the wash chamber, which pump allows the wash liquid poured into the wash chamber to be taken
Implementation Method 2
the rinsing liquid can also be used to heat the dishes, which is possible, for example, during a final rinse step to prepare for a subsequent drying cycle
Implementation Method 3
an air flow that is as warm and dry as possible, generated, for example, with a sorption drying device
Implementation Method 4
one of the adaptation measures results in the addition of rinse aid to the rinsing liquid used in at least one partial rinse cycle
Data Source
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AI summary
The dishwasher has a control device for storing a rinsing program for executing rinsing cycles (SG, SG') to clean and/or dry goods to be washed, and an operating device for inputting operating commands for the control device. One of the commands is inputted at the operating device for executing measures for adapting the rinsing program to the goods. The measures control prevention of stains in the goods and/or drying results of the goods based on the adapted rinsing program during execution of the rinsing cycles. An independent claim is also included for a method for operating a dishwasher.