Quick Release Insert Sealing for Pneumatic ABS Valves
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Solution Overview
Problem
Existing pneumatic ABS valve devices for commercial vehicles face reliability and sealing effectiveness issues with quick release functions, and require additional parts for slow pressure release, leading to increased complexity and potential failures.
Innovation Solution
A quick release insert that deforms to seal against the casing in the blocking position, returning to its basic position under low load, allowing for a reliable and cost-efficient quick release without additional parts, and enabling both quick and slow air flow management without external influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a quick release insert is used for quick exhaust function, then the quick release capability is improved, but the reliability and sealing effectiveness deteriorate due to pivoting movement failure proneness
Solution Approach 1:
The patent replaces the mechanical pivoting system with a pneumatic actuation system. The quick release insert is moved into the blocking position by pressurized air from the working port rather than by pivoting motion, eliminating mechanical wear and failure points while maintaining quick release capability
Solution Approach 2:
The patent changes the operating parameter from mechanical motion (pivoting) to pneumatic pressure. The insert responds to pressure variations in the pneumatic system, moving to block the flow path when pressure exceeds a threshold, thereby improving reliability through parameter transformation
2Duration of action of moving object
If a check valve with throttle is used for pressure release, then the slow pressure release function is achieved, but the device complexity increases
Solution Approach 1:
The quick release insert serves multiple functions: it provides quick release by blocking the flow path when needed, and it enables slow pressure release by allowing air to pass through its structure when not blocking. This multi-functionality eliminates the need for separate throttle components, reducing device complexity while maintaining both quick and slow pressure release capabilities
3Adaptability or versatility
If additional parts are added for slow pressure release, then the slow release function is improved, but the manufacturing cost and potential failure points increase
Solution Approach 1:
The patent merges the quick release and slow pressure release functions into a single integrated component - the quick release insert. The insert's structure and positioning allow it to perform both functions without requiring separate throttles or additional parts, thereby maintaining manufacturing simplicity while achieving functional versatility
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 provides a repeatable and less failure-prone quick release function, eliminating the need for separate throttles and reducing wear, while ensuring immediate air supply for pressure increase and efficient brake actuator inflation.
Implementation Method 1
an exhaust air flow provided by a working port (3) moves the quick release insert (5) into a blocking position
Implementation Method 2
the quick release insert (5) is reversibly deformable and at least partly arranged in the flow path (17)
Data Source
AI summary
A pneumatic ABS valve device (10) includes: a casing (1) having a supply port (2) for receiving pressurized air; a working port (3) for providing a braking pressure to a brake actuator (9); an exhaust port (4) for a releasing pressurized air from the brake actuator (9); and a flow path (17) defined in the casing (1) and connecting the working port (3) and the supply port (2). A reversibly deformable quick release insert (5) is arranged in the flow path (17) and received in the casing (1) and moves into a blocking position (B) when an exhaust air flow (f2) is provided by the working port (3). The quick release insert deforms in the blocking position (B) to sealingly rest against a sealing surface (28) of the casing (1) thereby blocking the flow path (17), and returns into an undeformed basic position (A) in an unloaded or low-loaded condition.