Vehicle Window Humidifier Sealing and Noise Reduction
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Solution Overview
Problem
Humidifying devices installed in the engine compartment hood of motor vehicles face issues with gas leakage causing odor nuisances, complex mounting, and increased wind noise due to protruding parts, which existing technologies have not adequately addressed.
Innovation Solution
A moistening device with a carrier element featuring a screen and cover cap that seals off the liquid connection, allowing the nozzle body to be pivoted and adjusted, and integrated into the engine compartment hood in a gas-tight and aesthetically concealed manner, enabling easy installation and adaptation to various vehicle types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the moistening device is installed in the engine compartment hood, then it can be easily mounted and connected, but gases escaping in the engine compartment can get into the washing water and cause odor nuisance
Solution Approach 1:
The device is divided into separate components: a nozzle body, a carrier element with cover cap, and a screen. The cover cap and screen create a sealed compartment that isolates the liquid connection from engine compartment gases, while still allowing easy installation through the hood opening.
Solution Approach 2:
The screen and cover cap act as intermediary barriers between the engine compartment gases and the washing liquid. The screen with openings allows liquid passage while blocking gases, and the cover cap seals the liquid connection area, preventing gas contamination without complicating installation.
2Object-affected harmful factors
If a covering shell encloses all parts of the nozzle body, then it prevents gas leakage and reduces wind noise, but it makes assembly and adjustment difficult
Solution Approach 1:
Instead of a complete enclosing shell, the device uses a partial cover cap that only seals the necessary areas (liquid connection and screen). The nozzle body remains partially exposed and accessible, allowing easy assembly and adjustment while still providing sufficient protection against gas leakage and wind noise.
Solution Approach 2:
The cover cap provides localized sealing only where needed (at the liquid connection and screen areas), rather than enclosing the entire nozzle body. This selective coverage prevents gas leakage and reduces wind noise while maintaining accessibility for assembly and adjustment operations.
3Object-affected harmful factors
If the device is fully enclosed to prevent gas contamination, then odor nuisance is reduced, but it increases device complexity
Solution Approach 1:
The anti-contamination function is achieved through simple segmented components (cover cap and screen) rather than a complex enclosed structure. The screen with openings and the cover cap create effective gas barriers using minimal structural elements, reducing odor nuisance without significantly increasing device complexity.
Solution Approach 2:
The screen acts as a porous barrier that allows washing liquid to pass through while blocking engine compartment gases. This simple porous structure effectively prevents odor nuisance without requiring complex sealing mechanisms or enclosed structures.
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
Device has a supporting element (4), which has a panel (6), which extends at an angle away from the cap cover (5). The cap cover of the supporting element is of plate shape and has a recess for the passage of the nozzle body (1) whereby panel has an opening. An independent claim is also included for the combination of car body panels.