Dishwasher Basket Hydraulic Coupling for Height-Adjusted Water Feed
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Solution Overview
Problem
Existing dishwashers with height-adjustable crockery baskets face hydraulic inefficiencies in guiding washing liquor into the inlet pipe for the spray arm, as the current coupling systems divert rinsing water, leading to suboptimal washing performance.
Innovation Solution
A dishwasher design featuring a coupling device with a first partial coupling on the side wall and a second partial coupling connected to the inlet pipe, where the second coupling interacts with one of the first openings depending on the basket's height, ensuring direct flow into the inlet pipe and closing non-interacting openings to maintain hydraulic efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the coupling system diverts rinsing water through the clutch housing, then the height-adjustable crockery basket can be accommodated, but the hydraulic guidance of washing liquor becomes suboptimal
Solution Approach 1:
The coupling device is divided into a first partial coupling with multiple first openings and a second partial coupling with a single second opening. This segmentation allows the system to provide multiple potential flow paths while maintaining a primary direct flow path, resolving the contradiction between adaptability for height adjustment and hydraulic efficiency for washing liquor flow.
2Adaptability or versatility
If multiple openings are provided in the coupling for different height positions, then adaptability to height adjustment is improved, but the complexity of the coupling device increases
Solution Approach 1:
The first partial coupling serves multiple functions: it provides multiple potential connection points for different basket heights, maintains hydraulic efficiency through the primary flow path, and automatically seals non-active openings. This multi-functionality reduces the need for separate coupling devices for each height position, thereby reducing overall system complexity.
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 ensures consistent and efficient hydraulic guidance of washing liquor into the inlet pipe, regardless of the basket's height, enhancing washing performance by preventing diversion and maintaining a reduced cross-section for improved water flow.
Implementation Method 1
pressurized washing liquor can emerge during operation of the dishwasher through the first openings
Data Source
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AI summary
The invention relates to a dishwasher (1) comprising a washing receptacle (2) with at least one sidewall (6), a vertically adjustable dish basket that can be at least partly withdrawn from the washing receptacle (2), a spraying arm (3), a feed pipe (4) for the spraying arm (3), said feed pipe (4) being mounted on the dish basket, and a coupling device (8) which encompasses a first partial coupling (9) and a second partial coupling (10). The first partial coupling (9) is disposed on the sidewall (6) and has a number N of superimposed first openings (14) from which a pressurized rinsing liquor can be discharged during operation of the dishwasher (1). The second partial coupling (10) is connected to the feed pipe (4) and has a second opening (20) which cooperates with one of the first openings (14) of the first partial coupling (9) according to the vertical adjustment of the dish basket such that the rinsing liquor penetrates the first opening (14) cooperating with the second opening (20) as well as the second opening (20) during operation of the dishwasher (1) and flows to the spraying arm (3) via the feed pipe (4). Furthermore, the second partial coupling (10) is designed in such a way as to close the remaining first openings (14) that do not cooperate with the second opening (20).