Air Vent Airflow Splitter Design for Adjustable Deflection Control
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Solution Overview
Problem
Existing air vents for motor vehicles face challenges in achieving optimized air deflection with improved performance while maintaining a simple construction, particularly in terms of airflow distribution and deflection efficiency.
Innovation Solution
The air vent design incorporates an airflow splitter with a fixed impact body and adjustable air guiding regions, along with a device for airflow control, such as pivotable air flaps, to optimize air deflection and airflow distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If arcuate housing walls are used to deflect airflow, then air deflection is achieved, but manufacturing complexity increases
Solution Approach 1:
The housing is divided into multiple wall sections (first housing wall, second housing wall, third housing wall, fourth housing wall) that can be manufactured separately using standard injection molding techniques. This segmentation allows each wall to be produced with simpler geometry while still achieving the overall arcuate airflow deflection when assembled, resolving the contradiction between air deflection performance and manufacturing complexity.
2Ease of operation
If multiple air ducts with volumetric flow variation are used for air deflection, then air deflection is achieved, but airflow performance and throughput are reduced
Solution Approach 1:
Instead of controlling air deflection by varying volumetric flows through multiple air ducts (one-dimensional control), the invention uses the spatial arrangement and angular orientation of multiple housing walls to deflect airflow. The housing walls are positioned at specific angles relative to each other to guide airflow in the desired direction, transforming the control mechanism from flow rate variation to geometric configuration, thereby maintaining high airflow throughput while achieving effective air deflection.
3Ease of operation
If air guiding elements are added to the housing, then air deflection is improved, but device complexity increases
Solution Approach 1:
The housing walls serve multiple functions: they contain the airflow, guide the airflow direction, and provide structural support. By designing the housing walls with specific geometric configurations and angular relationships, the same structural elements perform both containment and guidance functions, eliminating the need for separate air guiding elements and reducing overall device complexity while maintaining effective air deflection.
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
This design enhances air deflection efficiency and overall performance by allowing adjustable airflow portions through different guiding regions, improving airflow distribution and reducing flow resistance.
Implementation Method 1
An airflow flows through an inlet opening at an air inlet region (3) of the air vent (1) into the air duct, which is delimited by the housing wall of the air vent (1), through said air duct, and ultimately through an outlet opening at the air outlet region (4) of the air vent (1) into the interior of a motor vehicle
Data Source
AI summary
An air vent (1) for a motor vehicle, wherein the air vent (1) includes a housing (2) having an air inlet region (3) and an opposite air outlet region (4). In the housing (2) of the air vent (1), an airflow splitter (5), which extends at least regionally or partially transversely to the housing longitudinal direction, is arranged such that a first air guiding region (6) and a second air guiding region (7) are formed, wherein, for the purpose of air deflection as needed in a first direction, in particular in a vertical direction, the air vent (1) includes a device for airflow control, via which device a portion of the total airflow flowing through the housing (2), the portion flowing through the first and/or second air guiding region (6, 7), is adjustable.