Dishwasher with high-velocity sprayer
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Solution Overview
Problem
Automatic dishwashers often leave puddles of liquid on dishes during the drying phase, which can spill and wet other dishes upon removal, leading to undesirable wetting of clean items.
Innovation Solution
A dishwasher with a high-speed sprayer system that emits liquid at a speed greater than 1.5 meters per second to blast and remove puddled liquid from concavities on dishes, reducing residual water and enhancing drying efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional sprayer system is used to wash dishes, then the washing process is completed, but puddles of liquid remain on dishes during the drying phase which can spill and wet other dishes
Solution Approach 1:
The high-speed sprayer performs a preliminary action by blasting excess water from dish concavities before the drying phase begins. This pre-treatment removes the harmful puddles that would otherwise form and spill during drying, preventing the harmful effect before it occurs.
Solution Approach 2:
The high-speed sprayer uses extremely high velocity water (greater than 1.5 meters per second) to rapidly blast through and remove puddled liquid from dish surfaces. This rushing action quickly eliminates excess water that would otherwise remain and cause spillage during the drying phase.
2Productivity
If liquid is emitted at high speed to remove puddled liquid from dishes, then residual water is reduced and drying efficiency is enhanced, but the complexity of the spraying system increases
Solution Approach 1:
The patent changes the velocity parameter of the sprayer system, operating at extremely high speeds (greater than 1.5 meters per second) compared to conventional sprayers. This parameter change enables the system to blast and remove puddled liquid effectively, significantly improving drying efficiency by reducing residual water on dishes.
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
Effectively minimizes puddles on dishes by splashing off excess water during the wash cycle, allowing for better drying and reducing the risk of wetting other dishes during the drying phase.
Implementation Method 1
a sprayer located within the treating chamber and above the dish rack, and emitting a second liquid at a second speed, greater than the first speed, downwardly onto the dish rack to form a high-speed spray having a speed greater than 1.5 meter per second
Data Source
AI summary
A dishwasher for treating dishes according to a cycle of operation, the dishwasher comprising a tub at least partially defining a treating chamber, a dish rack received within the treating chamber and configured for receiving dishes for treatment during the cycle of operation, a sprayer located within the treating chamber and above the dish rack, and emitting a second liquid at a second speed, greater than the first speed, downwardly onto the dish rack to form a high-speed spray.