Washing Machine Liquid Jet Design to Remove Detergent Accumulation
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Solution Overview
Problem
Laundry washing machines suffer from inefficient detergent dissolution due to product accumulation at the bottom of the tub, leading to variable washing performance and potential bacterial proliferation, affecting hygiene and efficiency.
Innovation Solution
A laundry washing machine design featuring a washing tub with a heater at the bottom and a liquid output that emits a high-speed jet of liquid parallel to the tub bottom to remove accumulated washing products, enhancing their dissolution and preventing bacterial growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If washing products are introduced into the washing tub during the washing cycle, then the washing function is performed, but the products accumulate at the bottom of the tub due to high density, leading to incomplete dissolution
Solution Approach 1:
The liquid output emits a jet of liquid before the washing cycle begins or during early phases to prevent product accumulation at the bottom of the tub. This preliminary action removes products that would otherwise settle and fail to dissolve, ensuring complete detergent dissolution from the start of the washing process.
Solution Approach 2:
A liquid output device generates a high-velocity jet of liquid that flows along the bottom of the washing tub to remove accumulated washing products. This hydraulic action uses fluid dynamics to counteract gravitational settling of dense detergent products, maintaining them in suspension and promoting complete dissolution.
2Reliability
If products accumulate on the bottom of the tub, then dissolution is incomplete, but this leads to variable washing performance and bacterial proliferation
Solution Approach 1:
The liquid jet system operates preliminarily to remove washing products before they can accumulate and create conditions for bacterial growth. By continuously or periodically activating the liquid output, the system prevents the formation of stagnant product layers at the tub bottom, ensuring consistent washing performance and hygienic conditions throughout the machine's operation.
Solution Approach 2:
The system converts the harmful effect of product accumulation (which causes inconsistent washing and bacterial growth) into a beneficial cleaning action. The liquid jet uses the accumulated products as target objects to demonstrate its cleaning capability, transforming the problem of accumulation into an opportunity to actively remove and dissolve products, thereby preventing bacterial proliferation and ensuring reliable washing performance.
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
This design improves washing efficiency by ensuring complete and fast detergent dissolution, maintaining consistent performance, and reducing bacterial proliferation for better hygiene.
Implementation Method 1
the liquid output is arranged in such a way to emit a jet of liquid below the heater device, this jet having a main flowing direction substantially parallel or pointed to the bottom of the washing tub
Implementation Method 2
a heater device placed at the bottom of the washing tub for heating a liquid coming into contact with it
Data Source
AI summary
A laundry washing machine (1) includes a washing tub (3) external to a rotatable washing drum (4) adapted to receive laundry. The machine further includes a water supply circuit (5) to supply water into the washing tub (3), a washing/rinsing products supplier (6) to supply washing/rinsing products into the washing tub (3), a heater device (10) placed at the bottom (3a) of the washing tub (3) for heating a liquid coming into contact with it and a liquid output (37) placed at the bottom (3a) of the washing tub (3) for introducing liquid into the washing tub (3). The liquid output (37) is arranged in such a way to emit a jet of said liquid below the heater device (10), the jet having a main flowing direction (L) substantially parallel or pointed to the bottom (3a) of the washing tub (3), so as to remove washing/rinsing products collected therein.