Residual Pressure Sealing Valve With Tail Actuator for Easy Hose Mounting
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Solution Overview
Problem
Existing residual pressure sealing valves for pneumatic suspensions in motor vehicles require high thrust force for opening and often fail to ensure a tight seal, making mounting difficult and prone to pressure losses.
Innovation Solution
A residual pressure sealing valve with a cylindrical valve body, sealing rings, and an actuator with a tail that reduces the thrust force needed to open the valve and ensures proper sealing through a quick-fit connection system and grip ring alignment, minimizing pressure loss risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a residual pressure sealing valve is used to maintain correct inflation pressure in bellows, then the bellows are protected from deflating and permanent damage, but the thrust force needed to open the valve becomes quite high (up to 100 N), making mounting difficult and complex
Solution Approach 1:
A compressed air hose is introduced as an intermediary element that transmits air pressure to the actuator of the sealing valve. This mediator converts the operator's manual pushing action into effective valve opening force, reducing the direct thrust force requirement from up to 100 N to a much lower value that can be easily applied manually.
Solution Approach 2:
The patent utilizes pneumatic pressure from compressed air to actuate the valve opening mechanism. The compressed air hose delivers pressurized air to the actuator, which then opens the sealing valve. This pneumatic assistance eliminates the need for high manual thrust force while maintaining reliable sealing during transport and storage.
2Reliability
If a residual pressure sealing valve is used to seal bellows during transport and storage, then the correct inflation pressure is maintained, but the immediate and proper tight seal of the compressed air hose is not always guaranteed, risking pressure losses
Solution Approach 1:
The valve is pre-configured with a dedicated input channel and actuator mechanism that is ready to receive the compressed air hose. The sealing surfaces and sealing rings are pre-positioned to ensure proper alignment when the hose is inserted, guaranteeing immediate and tight sealing without requiring complex adjustment procedures.
Solution Approach 2:
The compressed air hose acts as a mediator that not only delivers actuating pressure but also ensures proper sealing through its integration with the valve's input channel. The hose's connection to the actuator creates a sealed pathway that prevents pressure losses while maintaining the bellows' inflation pressure.
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 significantly reduces the thrust force required to open the valve by 40% and ensures a reliable, fast, and proper seal, facilitating easier assembly and reducing pressure losses.
Implementation Method 1
The valve (1) is provided, both at the connection end (12) and at the coupling end (13), with at least one sealing ring (5), for example an O-ring
Implementation Method 2
return means (4), housed within the connection channel (111) (for example a spring), adapted to keep the valve (1) in the closed configuration
Implementation Method 3
an actuator (2) adapted to open and close the valve (1), i.e., open and close the connection channel (111) to allow or interrupt the fluidic connection
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A residual pressure sealing valve (1) for pneumatic suspensions of motor vehicles includes, among other things, an actuator (2) suitable to allow or interrupt the fluidic connection between a connection end (12) and a coupling end (13), and a grip ring (6) suitable to grasp and retain the compressed air hose for filling the pneumatic suspension. Such valve is characterized in that the actuator (2) is provided with a tail (23) and, in the closed configuration, the grip ring (6) is fitted on the tail (23).