Ice Maker Downspout with Fluted Geometry for Laminar Flow
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Solution Overview
Problem
Conventional ice-making assemblies in refrigerated appliances experience turbulent water flow, leading to chaotic water surfaces, splashing, and poor ice quality due to inefficient water delivery systems, which can cause operational issues and ice buildup.
Innovation Solution
A downspout with a cavity defined by alternating flutes and lobes, configured to create a substantially laminar flow of water from the inlet port to the ice tray, minimizing turbulence and splash through a specific geometry that includes a hollowed-out portion with elongated protuberances and grooves, and a water delivery system with an inlet segment and fill line to facilitate smooth water distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional water delivery systems are used, then water is delivered to the ice tray, but turbulent flow causes splashing and poor ice quality
Solution Approach 1:
The downspout cavity cross-sectional area is varied along its length to change flow parameters. The cavity has a larger cross-sectional area at the inlet and a smaller cross-sectional area toward the outlet, which reduces water velocity and promotes laminar flow conditions, eliminating turbulence and splashing that cause poor ice quality
Solution Approach 2:
The downspout cavity is divided into multiple sections with different cross-sectional areas. The cavity includes a first section with a larger cross-sectional area and a second section with a smaller cross-sectional area, creating staged flow control that progressively reduces turbulence as water travels through the downspout
2Productivity
If water flow velocity is high, then water is delivered quickly to the ice tray, but chaotic flow patterns occur
Solution Approach 1:
The downspout cavity cross-sectional area is changed along the flow direction to control water velocity. By reducing the cross-sectional area toward the outlet, the system maintains adequate delivery speed while the resulting pressure increase stabilizes the flow pattern and prevents chaos
Solution Approach 2:
The downspout cavity acts as an intermediary element between the water source and the ice tray. It mediates the flow by providing a controlled transition zone where turbulent high-velocity flow is transformed into laminar flow before water enters the ice tray
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
The solution achieves a substantially laminar flow of water into the ice tray, reducing splashing and chaotic flow, resulting in improved ice quality and minimizing operational disruptions within the ice maker.
Implementation Method 1
The at least one flute and at least one lobe are configured to create a substantially laminar flow of the water received from the inlet port along the at least one flute and the at least one lobe
Data Source
AI summary
A downspout for delivering water to an ice tray in a refrigerated appliance includes a cavity defined by at least one flute and at least one lobe. The downspout includes an inlet port for receiving water. The at least one flute and at least one lobe are configured to create a substantially laminar flow of the water received from the inlet port along the at least one flute and the at least one lobe.