Air-Guiding Element Turbulent Flow Rear Window Demisting
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Solution Overview
Problem
Rear windows in motor vehicles often remain misted up for longer periods, hindering visibility and passenger safety and comfort, as existing deicing solutions are either obstructive or ineffective.
Innovation Solution
An air-guiding element designed for integration into the interior compartment of a motor vehicle, which generates a turbulent airflow when impinged upon, featuring an incident-flow region and a concave flow-off region to enhance demisting, and can be partially transparent, adhesive, or equipped with a lamp for improved design and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional deicing deflectors are used, then demisting capability is provided, but the view through the window is obstructed
Solution Approach 1:
The air-guiding element is made transparent or translucent, allowing light to pass through while still performing its aerodynamic function of generating turbulent flow for demisting. This optical property change eliminates the view obstruction problem while maintaining the demisting capability.
2Object-affected harmful factors
If the air-guiding element is made transparent, then view through the element is ensured, but the element may need to be larger to maintain effectiveness
Solution Approach 1:
The air-guiding element features a concave flow-off region with curved surfaces that efficiently generate turbulent flow. This curved geometry allows the element to be more aerodynamically effective per unit area, reducing the need for larger size while maintaining demisting performance.
3Reliability
If adhesive attachment is used, then the air-guiding element is well adapted to the window, but installation requires surface contact
Solution Approach 1:
The air-guiding element is designed as a self-adhesive component that can be easily applied to the window surface. The adhesive layer is integrated into the element structure, allowing for simple installation without requiring separate mounting hardware or complex assembly procedures.
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 air-guiding element accelerates the demisting process of rear windows, improving visibility and safety by creating a turbulent airflow, while maintaining an unobstructed view and offering design flexibility, particularly effective for sedans where rear window misting is most prevalent.
Implementation Method 1
the air-guiding element is designed to, when an air flow impinges on the air-guiding element, generate a turbulent flow downstream of the air-guiding element
Data Source
AI summary
An air-guiding element for arrangement in an interior compartment, which is at least partially enclosed by windows, of a motor vehicle is provided. The air-guiding element is designed to generate a turbulent flow downstream of the air-guiding element when an air flow impinges on the air-guiding element. A motor vehicle having said air-guiding element is also described.