Quick Coupling Check Valve for Pressure Vessel Gas Loss
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Solution Overview
Problem
The existing pressure vessel systems for motor vehicles require costly and time-consuming processes for installation and servicing, as they often result in gas loss due to the need to release and repressurize the system during connection and disconnection of components, especially when using screw connections and blind plugs.
Innovation Solution
A pressure vessel system utilizing a quick coupling with check valves at the connection points, eliminating the need for screw connections and blind plugs, allowing for faster and cost-effective installation and servicing by maintaining a sealed connection during assembly and disassembly, and enabling the use of inert gases to prevent explosive mixtures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screw connections and blind plugs are used in the pressure vessel system, then the connection can be sealed, but the installation and servicing process becomes time-consuming and costly due to pressure release and repressurization requirements
Solution Approach 1:
The connection system is segmented into a permanent sealed connection point (integrating the coupling mechanism directly into the extraction line) and removable service ports. This segmentation allows the main connection to remain permanently sealed while enabling easy access for servicing without compromising the overall seal integrity or requiring system depressurization.
Solution Approach 2:
A coupling mechanism acts as an intermediary between the pressure vessel system and external devices. This intermediary enables connection and disconnection of service devices without requiring the removal of blind plugs or release of system pressure, thereby maintaining sealing reliability while reducing installation and servicing time.
2Ease of operation
If blind plugs are removed for connection purposes, then components can be connected, but gas loss occurs due to necessary pressure release and repressurization
Solution Approach 1:
The coupling mechanism is pre-integrated into the extraction line at the connection point, eliminating the need to remove blind plugs during connection. This preliminary integration ensures the connection can be made without compromising system pressure, thereby preventing gas loss while maintaining ease of operation.
3Adaptability or versatility
If service ports are added for flexible connection options, then servicing capability is improved, but the device complexity increases with additional components and leakage points
Solution Approach 1:
The service port functionality is merged with the existing extraction line structure. The coupling mechanism is integrated directly into the extraction line at the connection point, combining the functions of connection, sealing, and service access into a single unified component, thereby reducing overall system complexity while maintaining servicing adaptability.
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 solution reduces installation and maintenance costs by minimizing gas loss and streamlining the process, allowing for efficient filling and servicing of the pressure vessel system without the need for additional closure mechanisms, thus enhancing operational efficiency and safety.
Implementation Method 1
The first coupling part comprises a check valve, which closes the extraction line when the second coupling part is uncoupled
Data Source
AI summary
A pressure vessel system for a motor vehicle has at least one pressure vessel, to which an extraction line is connected. The extraction line has a connection point, to which a connection line leading to a consumer is connected. The connection point of the extraction line includes a first coupling part of a quick coupling, to which a second coupling part of the quick coupling, arranged on the connection line, is connected. The first coupling part has a non-return valve, which closes the extraction line when the second coupling part is decoupled.