Pneumatic ABS Valve Quick Release Insert
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Solution Overview
Problem
Pressure variations in pneumatic systems with long lines cause delays in switching ABS valve devices between positions, leading to unreliable functionality.
Innovation Solution
A quick release insert in an ABS valve device, made of rubber and designed to pivot without a biasing force, allows air flow between supply and delivery ports in an open position and blocks it with pressure differences, eliminating the need for spring-based check valves and reducing sticking effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring-biased ball valve is used as a check valve, then the valve can reliably block reverse flow, but the response time is delayed due to the need to overcome spring biasing force
Solution Approach 1:
The patent removes the spring component from the check valve mechanism, extracting the source of delay. The quick release insert replaces the spring-biased ball valve, eliminating the need to overcome spring biasing force during switching operations.
Solution Approach 2:
The patent substitutes the mechanical spring-biased ball valve system with a gravity-based quick release insert system. This replacement eliminates the elastic force storage and release mechanism, allowing for faster response times driven by gravitational force instead of spring force.
2Stability of the object's composition
If a spring-biased ball valve is used, then the valve can maintain closed position, but sticking effects and aging problems occur over time
Solution Approach 1:
The patent removes the spring component that causes aging and sticking effects. The quick release insert eliminates the mechanical wear and deformation issues associated with spring-biased ball valves, improving long-term reliability.
Solution Approach 2:
The quick release insert uses gravity as a self-service mechanism to return to its neutral position, eliminating the need for spring components that degrade over time. This gravity-based system provides self-reliant operation without susceptible mechanical parts.
3Speed
If pressure difference is used to displace the quick release insert, then switching speed is improved, but additional force mechanisms are required
Solution Approach 1:
The quick release insert utilizes the existing pressure differential in the pneumatic system as its driving force, requiring no additional actuators or complex force mechanisms. The pressure difference naturally displaces the insert from its neutral position to the closed position.
Solution Approach 2:
The gravity force acting on the quick release insert serves as a counterbalancing mechanism, providing a reliable return force to the neutral position that can be dimensioned very small, effectively counteracting any residual forces without requiring complex mechanisms.
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
Enables quick and reliable switching between ABS valve positions, ensuring immediate air supply and rapid pressure changes without resonance effects, improving the overall functionality of the pneumatic brake system.
Implementation Method 1
The displacement is initiated by a pressure difference acting on faces of the quick release insert
Implementation Method 2
The open basic position can be secured in particular by action of gravity; this means that the quick release insert falls into its open basic position only by gravity
Data Source
AI summary
A pneumatic ABS valve device for a pneumatic brake system of a vehicle comprises a check valve mechanism for enabling a supply air flow from a supply port to a delivery port and blocking an air flow in the reverse direction. The check valve mechanism comprises a quick release insert disposed in an insert chamber, the quick release insert being placeable in a basic position for providing a chamber passage in the insert chamber enabling the supply air flow. The quick release insert is displaceable by an air pressure difference from the basic position into an activated blocking position, in which the chamber passage is at least diminished with respect to its basic position, in order to block an air flow from the supply port to the delivery port and enabling exhaust air flow.