Pneumatic Connection Adapter Filtration for Contaminated Vehicle Valves
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Solution Overview
Problem
Pneumatic valves in utility vehicles are prone to contamination from harsh environments, such as moisture and dust, which can compromise their operation, especially in critical situations like emergency brake actions.
Innovation Solution
A pneumatic connection adapter with a filter unit is introduced, which is placed between the pneumatic line and the vehicle valve to filter out contaminants, featuring a releasable mounting mechanism for easy filter replacement and bypass gaps to prevent system blockage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter unit is added to the pneumatic connection adapter, then the reliability of the pneumatic valve is improved by preventing contamination, but the device complexity increases due to additional components
Solution Approach 1:
The filter unit is nested within the pneumatic connection adapter body, with the filter element housed inside a filter housing that is integrated into the adapter structure. This allows the filter to be contained within the existing adapter volume without requiring separate external mounting, thus improving reliability while minimizing additional structural complexity.
Solution Approach 2:
The filter unit acts as an intermediary component between the pneumatic line and the valve, capturing contaminants before they reach the valve. This mediator function protects the valve from contamination while maintaining a relatively simple adapter structure by using a modular filter assembly that can be integrated without fundamentally redesigning the entire adapter.
2Ease of repair
If the mounting portion is made releasable for filter maintenance, then the ease of repair is improved, but the device complexity increases due to additional mounting mechanisms
Solution Approach 1:
The mounting portion is segmented into separable components that allow the filter unit to be independently removed from the adapter body. The filter housing can be detached from the main adapter body through a simplified mounting mechanism, enabling easy filter replacement without requiring complex disassembly procedures or specialized tools.
Solution Approach 2:
The mounting portion transitions from a fixed static connection to a dynamic releasable connection. The mounting mechanism allows the filter housing to be securely attached during operation but can be easily released when maintenance is needed. This dynamic characteristic enables easy repair while keeping the mounting mechanism itself relatively simple through features like snap-fit connections or tool-free release mechanisms.
3Reliability
If bypass gaps are added to prevent system blockage, then the reliability is improved by maintaining air flow, but the filtering effectiveness is reduced due to potential contaminant bypass
Solution Approach 1:
The bypass gaps are strategically positioned and sized to allow air flow continuity while maintaining effective filtration. The gaps are located in specific regions where they can prevent system blockage under normal operating conditions, while the filter element itself maintains its full filtering capability. The local geometry of the bypass channels is designed to minimize contaminant passage while ensuring reliable air flow.
Solution Approach 2:
The bypass gaps provide a partial air flow path that activates only when needed to prevent system blockage. Under normal conditions, the full filtering path is used for optimal contaminant removal. The bypass functionality provides excessive air flow capacity that ensures system continuity, while the filter element continues to perform its full filtering function for contaminants that do not bypass.
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 adapter effectively prevents contamination from reaching the valve, ensuring reliable operation even in dirty environments by filtering out dirt and allowing easy maintenance, thus enhancing the reliability of pneumatic systems in utility vehicles.
Implementation Method 1
The filter unit is configured to be inserted between the first air passage and the second air passage to filter the air passing through first air passage and through the second air passage
Data Source
Figure 1
Figure 2A~2B
Figure 3A~3B
AI summary
A pneumatic connection adapter for connecting a pneumatic line to a vehicle valve includes: a first adapter body (110) with a first air passage (114), a second adapter body (120) with a second air passage (124), a filter unit (130), and a mounting portion (115). The first adapter body (110) is configured to be attached to the pneumatic line and to provide air through the first air passage (114). The second adapter body (120) is configured to be attached to the vehicle valve and to provide air through the second air passage (124). The filter unit (130) is configured to be inserted between the first air passage (114) and the second air passage (124) to filter the air passing through first air passage (114) and through the second air passage (124). The mounting portion (115) is configured to securely connect the first adapter body (110) with the second adapter body (120) while fixing the filter unit (130) therebetween.