Windshield Wiper Filter Member Debris Protection
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Solution Overview
Problem
Water entering the air intake box of a vehicle can carry debris, which can contaminate the air intake system and affect its functionality.
Innovation Solution
A vehicle windshield wiper assembly with a filter member that encircles the shaft support portion, allowing water to pass through while restricting debris, is integrated with a water diverting member to divert water away from the wiper drive mechanism and into the air intake box.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water is allowed to drain from the air intake box through the shaft opening, then water removal is improved, but debris can simultaneously enter the air intake box
Solution Approach 1:
The filter member is a porous component that allows water to pass through while blocking debris particles. The porous structure enables selective permeability based on particle size, allowing liquid water to drain while trapping solid contaminants that would otherwise enter the air intake box.
Solution Approach 2:
The filter member acts as an intermediary component positioned between the shaft opening and the air intake box. It mediates the flow path by allowing water to pass through to the drain while intercepting and retaining debris, thus protecting the air intake system from contamination.
2Object-affected harmful factors
If a filter member is added to restrict debris, then debris protection is improved, but device complexity increases
Solution Approach 1:
The filter member is integrated with the water diverting member, combining the filtration function with the existing water diversion structure. This merging approach adds debris protection capability while minimizing the increase in overall device complexity by utilizing the existing structural framework.
Solution Approach 2:
The filter member serves multiple functions: it filters debris from water, maintains structural support for the water diverting member, and works in conjunction with the shaft opening to enable both water drainage and debris restriction. This multi-functionality reduces the need for additional separate components.
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
Effectively prevents debris from entering the air intake box, ensuring clean air intake and maintaining the vehicle's air conditioning system's efficiency by allowing water to drain while keeping contaminants out.
Implementation Method 1
The filter member is shaped and dimensioned to allow flow of water from the first shaft opening therethrough and restrict flow of debris from the first shaft opening therethrough
Data Source
AI summary
A vehicle windshield wiper assembly includes a filter member. The filter member is mounted to a radially inwardly facing surface of an upper area of a cylindrically shaped portion of a water diverting member below portions of a support panel above a wiper drive mechanism. The filter member encircles a shaft housing of the wiper drive mechanism and is shaped and dimensioned to allow flow of water from a first shaft opening in the support panel therethrough and restrict flow of debris from the first shaft opening therethrough.