Vehicle Ventilation Outlet Louver With Air-Cushion Flow Deflection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ventilation outlets for motor vehicles often experience unintentional contact of air flow with the outer contour, leading to deflection in unintended directions, which is not effectively addressed by prior designs.
Innovation Solution
A ventilation outlet with a pivotable air guide louver that forms a gap of varying width to create a secondary air flow, preventing contact with the duct wall and allowing precise deflection of the main air flow, featuring a louver head portion and body portion that pivots to adjust the gap width between the louver and the duct wall, generating an air cushion effect to maintain intended airflow direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If air guide louvers are used to deflect air flow in ventilation outlets, then directional control of air flow is improved, but unintentional contact with the outer contour causes deflection in unintended directions
Solution Approach 1:
A secondary air flow is introduced as an intermediary between the main air flow and the duct wall. This secondary air flow forms an air cushion that prevents direct contact between the main air flow and the duct wall, thereby eliminating unintended deflection while preserving the directional control function of the louver.
Solution Approach 2:
The invention uses pneumatic principles by generating a secondary air flow that creates an air cushion (气垫) between the main air flow and the duct wall. This air cushion acts as a pneumatic barrier that prevents contact and maintains accurate air flow direction.
2Device complexity
If the louver is positioned close to the duct wall for compact design, then device complexity is reduced, but air flow contact with the duct wall causes unintended deflection
Solution Approach 1:
The secondary air flow serves as a mediator that enables the louver to be positioned close to the duct wall without causing air flow contact. The air cushion created by the secondary air flow compensates for the reduced clearance, maintaining directional control accuracy despite the compact positioning.
3Manufacturing precision
If rigid air guide louvers are used for constant direction air flow, then manufacturing precision is improved, but adaptability to variable deflection requirements is reduced
Solution Approach 1:
The invention introduces a pivotable louver that can rotate about a pivot axis, transforming the rigid structure into a dynamic one. This allows the louver to adjust its angle and create variable deflection of the main air flow, while the secondary air flow maintains consistent cushioning to prevent unintended contact.
Solution Approach 2:
The louver is divided into a louver head portion and a louver body portion, with the head portion being pivotable. This segmentation allows independent rotation of the head portion to control air flow direction, providing adaptability while maintaining structural integrity.
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 solution enables precise deflection of air flow without unintended contact with the duct wall, improving directional control and reducing turbulence, thus enhancing the operator's ability to set the desired airflow direction in a cost-effective manner.
Implementation Method 1
A secondary air flow flowing through a gap formed between a louver head portion and a duct wall prevents or at least reduces contact of a main air flow with the duct wall in the region of the ventilation duct outlet opening
Data Source
AI summary
A ventilation outlet for a ventilation system of a motor vehicle for directionally supplying a passenger compartment of the motor vehicle with an air flow flowing in a flow direction, having a ventilation duct for passing the air flow, with a duct wall for circumferentially delimiting the ventilation duct and a ventilation duct outlet opening for discharging the air flow into the passenger compartment, and a first air guide louver arranged in the ventilation duct and having a louver head portion and a louver head portion for deflecting the air flow, wherein the first air guide louver is held pivotably relative to the ventilation duct about a pivot axis between a first position and a second position, wherein the pivot axis runs through the louver head portion and is arranged adjacent to the ventilation duct outlet opening.