Split-Duct Vehicle Air Vent for Wider Air Deflection

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Solution Overview

Problem

Existing air vents for vehicles are complex to manufacture and have limitations in air deflection and throughput, leading to reduced performance and uneven air distribution.

Innovation Solution

The air vent design incorporates an air stream splitter and pivotable air guiding elements in two separate air ducts, allowing for optimized air deflection and increased flow area, while maintaining a simple construction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If arcuate housing walls are used to deflect air, then air deflection capability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveair deflection capabilityVSAvoidmanufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The housing is divided into multiple linear wall sections (first housing wall, second housing wall, third housing wall, fourth housing wall) instead of using a single curved surface. Each wall section can be manufactured separately using standard injection molding techniques, reducing manufacturing complexity while collectively achieving the desired air deflection function through their arrangement and the movable air guiding element.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple air ducts with air guiding elements are used to achieve air deflection, then air deflection is improved, but device complexity increases

Engineering Contradiction:
Improveair deflectionVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the functions of multiple air ducts and air guiding elements into a single integrated air duct with a movable air guiding element. This element can pivot between different positions to direct air into different regions of the housing, merging what would traditionally require separate ducts and guiding structures into one unified system, thereby reducing device complexity while maintaining air deflection capability.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If air guiding elements are added to deflect air, then air deflection capability is improved, but flow area is reduced

Engineering Contradiction:
Improveair deflection capabilityVSAvoidflow area
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The air guiding element is designed to be movable rather than fixed, allowing it to pivot between different angular positions. This dynamic design enables the element to deflect air when needed while minimizing its obstruction to airflow when not in use, thereby maintaining a larger effective flow area compared to fixed air guiding structures that would continuously block part of the duct cross-section.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12280637B2Air vent for a vehicle and air vent system
Publication Date: 2025.04.22 ILLINOIS TOOL WORKS INC
  • US12280637B2 patent drawing
  • US12280637B2 patent drawing
  • US12280637B2 patent drawing

AI summary

An air vent for a vehicle includes a housing having an air inlet region and an opposite air outlet region, an air stream splitter received at least regionally in the housing in such a way that, at least in the air outlet region of the housing, an air duct that is delimited or defined by the housing is split into a first air duct and a second air duct separated therefrom. For air deflection as needed in a vertical direction, the air vent has at least two air guiding elements, which are received in the first air duct and are opposite to one another and are pivotable about a common first axis of rotation, and including at least two air guiding elements, which are received in the second air duct and are at least regionally opposite to one another and are pivotable about a common second axis of rotation.