Integrated Dishwasher Distributor for Low-Loss Water Routing
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Solution Overview
Problem
Dish washing machines face inefficiencies due to pressure loss and reduced space utilization in their water circulation systems, leading to increased energy and water consumption.
Innovation Solution
A dish washing machine design incorporating a distributor with rotatable opening and closing members within the pump housing, allowing selective control of outlets to minimize pressure loss and optimize water distribution to jet nozzles, featuring a distributor motor and cam mechanism for precise outlet management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the distributor is positioned outside the pump housing, then the structure is simpler to manufacture, but pressure loss increases and space utilization decreases
Solution Approach 1:
The distributor is integrated within the pump housing, merging two separate components (pump and distributor) into a single unified structure. This eliminates the need for external positioning and reduces pressure loss by shortening the water circulation path, while maintaining manufacturing feasibility through modular internal component design.
Solution Approach 2:
The distributor is nested inside the pump housing, with the distributor body positioned within the internal cavity of the housing. This nesting arrangement optimizes space utilization and minimizes the overall footprint while reducing pressure loss by eliminating external connections and long water paths.
2Ease of manufacture
If the distributor is positioned outside the pump housing, then the structure is simpler to manufacture, but space utilization is reduced
Solution Approach 1:
The distributor is integrated within the pump housing, merging two separate components (pump and distributor) into a single unified structure. This eliminates the need for external positioning and shortens the water circulation path, while maintaining manufacturing feasibility through modular internal component design.
Solution Approach 2:
The distributor is nested inside the pump housing, with the distributor body positioned within the internal cavity of the housing. This nesting arrangement optimizes space utilization and minimizes the overall footprint while reducing pressure loss by eliminating external connections and long water paths.
3Volume of moving object
If the motor shaft of the distributor faces the same direction as the pumping motor, then the structure is more compact, but the outlets cannot be optimally positioned for water distribution
Solution Approach 1:
The distributor motor shaft is positioned at an angle (40-50 degrees) relative to the pumping motor shaft, creating an asymmetric configuration. This asymmetric arrangement allows the outlets to be optimally positioned for effective water distribution to different areas of the washing tub, while the overall structure remains compact through careful spatial arrangement.
Solution Approach 2:
The distributor motor shaft is oriented in a different dimensional direction (angled at 40-50 degrees) rather than parallel to the pumping motor shaft. This dimensional change enables optimal outlet positioning for water distribution while maintaining compactness through three-dimensional spatial optimization.
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 reduces energy and water consumption by minimizing pressure loss and enhancing space utilization, ensuring efficient water circulation and effective cleaning without blind spots in the washing tub.
Implementation Method 1
the plurality of opening and closing members may selectively open and close the plurality of outlets using torque of a motor of the distributor
Implementation Method 2
a pump for supplying the washing water in the sump to the jet nozzles
Data Source
AI summary
A dish washing machine includes a plurality of jet nozzles which jet washing water, a sump which stores washing water, a pump which includes a pumping motor pumping the washing water stored in the sump and a housing comprising a plurality of outlets, and a distributor which distributes the washing water pumped by the pump to the plurality of jet nozzles through the plurality of outlets. The distributor includes at least one opening and closing member configured to be rotatable in the housing of the pump to selectively open and close the plurality of outlets, and a distributor motor which rotates the at least one opening and closing member about a motor shaft which faces a direction different from a direction which a motor shaft of the pumping motor faces.