Spray Head Laminar Flow and Water Shield Design
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Solution Overview
Problem
Existing water delivery systems for sinks do not effectively generate a continuous sheet-like water shield around a stream of water, leading to issues such as splashing and misting during use.
Innovation Solution
A spray head design that includes a cartridge assembly with a flow straightening member and a whirl member, which produces a center water stream with laminar flow and a surrounding continuous sheet of water by dividing the water supply into portions and using centrifugal force to create a uniform, sheet-like water shield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional water delivery system is used, then water is delivered to the sink, but splashing and misting occur due to lack of flow control
Solution Approach 1:
The water flow is segmented into two distinct streams: a center water stream with laminar flow and an outer continuous shield of water. This segmentation allows independent control of each stream's characteristics, enabling the center stream to maintain laminar flow while the outer shield prevents splashing and misting.
Solution Approach 2:
Different flow qualities are applied to different regions of the water delivery system. The center region receives water configured for laminar flow to maintain a coherent stream, while the outer region receives water configured to form a continuous shield. This local differentiation of flow properties solves the contradiction between maintaining stream integrity and preventing splashing.
2Productivity
If water flow is increased to improve cleaning capability, then cleaning effectiveness improves, but turbulence and misting increase
Solution Approach 1:
The water supply is divided into at least a first portion and a second portion, with each portion directed to create a specific flow pattern. This segmentation allows the system to deliver high volumes of water for effective cleaning while maintaining stable, non-turbulent flow characteristics in each segment.
Solution Approach 2:
The system changes the flow parameters (velocity, pressure, distribution) of different water portions to achieve optimal cleaning capability while maintaining stream stability. By adjusting these parameters independently for the center stream and outer shield, the system prevents turbulence even at high flow rates.
3Object-affected harmful factors
If a continuous water shield is generated, then protection against debris and reduced misting is achieved, but device complexity increases
Solution Approach 1:
The flow straightening member and whirl member are combined into a single integrated nozzle assembly that performs multiple functions simultaneously. This merging of components achieves the continuous water shield and laminar flow generation without proportionally increasing device complexity.
Solution Approach 2:
The nozzle assembly is designed to perform multiple functions: generating laminar flow, creating rotational movement, and forming a continuous water shield. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while achieving comprehensive protection against debris and misting.
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 reduces splashing and misting, providing a more efficient and effective cleaning experience by creating a laminar flow and a continuous water shield that protects against debris and enhances cleaning capabilities.
Implementation Method 1
The flow straightening member is configured to assist in removing turbulence from the water. A nozzle is operably coupled to the straightening member and includes an outlet orifice configured to produce a center water stream with a substantially laminar flow.
Implementation Method 2
A whirl member is operably coupled to the mount and is configured to impart rotational movement to the water, thereby producing a continuous shield of water extending around the center water stream.
Data Source
AI summary
A spray head for a power sprayer configured to generate a continuous sheet-like water shield around a center stream of water. A water delivery device for use with a sink may produce a stream of water surrounded by a continuous shield of water.