Dishwasher High-Velocity Spraying for Puddle Removal
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Solution Overview
Problem
In household dishwashers, puddles of liquid often form on dishes during the wash cycle and persist during the drying phase, leading to spillage and wetting of other dishes, which is undesirable.
Innovation Solution
A method involving a dishwasher with a sprayer system that emits a first liquid at a normal speed to form puddles during a wash phase and a second liquid at a higher speed to partially remove these puddles during a subsequent phase, utilizing a high-speed sprayer positioned above the dish rack to blast and splash away excess liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If liquid is emitted at normal speed during wash phase, then dishes are effectively washed, but puddles form on dishes that cannot be evaporated during drying
Solution Approach 1:
The patent applies periodic action by implementing a multi-phase cycle: a wash phase with normal-speed spray to clean dishes, followed by a high-speed spray phase to remove excess liquid, and then a drying phase. This periodic switching between different spray speeds effectively manages liquid quantity on dishes throughout the cycle.
Solution Approach 2:
The patent changes the parameter of liquid emission speed from normal speed during washing to high speed during liquid removal. By varying the spray velocity parameter, the system achieves different functions: gentle washing versus forceful liquid ejection, thereby preventing puddle formation without compromising wash effectiveness.
2Object-affected harmful factors
If a high-speed sprayer is added to remove puddles, then spillage is prevented, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality by designing the sprayer system to perform multiple functions: normal-speed spraying for washing, high-speed spraying for liquid removal, and integration with the drying phase. This universal system eliminates the need for separate dedicated components for each function, managing to reduce overall system complexity despite the added capability.
Solution Approach 2:
The patent merges the liquid removal function with the existing sprayer infrastructure rather than adding completely separate components. The high-speed spray capability is integrated into the sprayer system, combining washing and liquid removal functions in a unified system that operates through controlled parameter changes rather than through multiple independent subsystems.
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 reduces the volume of puddles on dishes, minimizing residual liquid and preventing spillage during the drying phase, ensuring cleaner and drier dishes.
Implementation Method 1
emitting a second liquid from the separate sprayer located at a second speed, greater than the first speed, to form a high-speed spray on the dishes in the dish rack during a second phase of the cycle of operation where the high-speed spray at least partially removes a quantity of the puddles
Data Source
AI summary
A method of washing dishes in an automated dishwasher utilizing a high velocity sprayer and high velocity spray phase for forcibly spraying water from concavities on washed dishes or utensils in which liquid can puddle in the cavities of the dishes or utensils during previous washing or rinsing cycles.