Faucet Aerator Housing With Polymer Baffles for Leak Reduction
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Solution Overview
Problem
Conventional faucet delivery spouts with metal channels cause water to interact directly with metal, leading to potential leaks and inefficiencies when using flow modifying devices like aerators or stream straighteners.
Innovation Solution
A polymer housing with baffles is used to redirect water flow away from direct contact with metal channels, incorporating a polymer supply tube to minimize interaction and reduce leaks, while maintaining the desired flow pattern through baffles and a flow modifying device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a conventional metal channel delivery spout is used, then structural strength and durability are improved, but water interaction with metal increases leading to potential leaks
Solution Approach 1:
A polymer housing acts as an intermediary component between the metal delivery spout and the flow modifying device. The housing includes a polymer supply tube that receives water from the metal spout and directs it to the flow modifying device, thereby preventing direct contact between water and the metal channel while maintaining structural integrity through the metal spout.
2Reliability
If a polymer supply tube with housing is used, then water interaction with metal is reduced, but device complexity increases
Solution Approach 1:
The polymer housing serves multiple functions simultaneously: it acts as a structural support for the flow modifying device, provides a fluid passage for water flow, prevents direct water-metal contact, and includes integrated baffles for flow distribution. This multi-functionality reduces the need for separate components and minimizes overall device complexity.
3Ease of operation
If baffles are added to redirect water flow, then flow pattern control is improved, but manufacturing complexity increases
Solution Approach 1:
The baffles are designed with specific geometric parameters including angle of inclination, position relative to the supply tube, and spacing that optimize water flow redirection. By carefully selecting these parameters, the housing can be manufactured as a single integrated polymer component using injection molding or similar processes, balancing flow control effectiveness with manufacturing simplicity.
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
Reduces water interaction with metal, minimizing leaks and maintaining the intended flow pattern of flow modifying devices, enhancing the functionality and reliability of faucet systems.
Implementation Method 1
A first baffle is supported by the body and positioned downstream from the inlet opening to redirect water flow from the polymer tube in a lateral direction
Implementation Method 2
After the water stream contacts the first baffle of the illustrative housing, it then contacts a second baffle to further distribute the water flow to the flow modifying device
Data Source
AI summary
A housing fluidly coupled to an inlet tube received within a faucet delivery spout. The housing receives a flow modifying device (e.g., an aerator or a stream straightener), and includes a first baffle and a second baffle to provide a desired water flow to the flow modifying device.