Tyre Inflating Valve Control for Safe Intermittent Pressure Reading
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tyre inflating devices are unsafe, difficult to repair, and not adaptable to different conditions, with safety modules composed of pneumatic circuits that are unreliable and inefficient.
Innovation Solution
A tyre inflating device with a primary valve, shutoff valve, and auxiliary safety module, including a secondary valve controlled by a pressure sensor and control unit, to ensure safe and adaptable inflation, using a combination of cylinders and relief ducts to manage pressure intermittently and detect pressure trends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pneumatic circuits are used for safety modules, then safety function is provided, but reliability and ease of repair deteriorate
Solution Approach 1:
The patent replaces complex pneumatic safety circuits with a simplified mechanical valve system. The safety module uses a pressure-actuated valve that automatically closes when predetermined pressure thresholds are exceeded, eliminating the need for complex pneumatic control circuits and improving both reliability and ease of repair.
Solution Approach 2:
The safety module is designed to automatically detect and respond to overpressure conditions without requiring external control systems. The valve self-activates based on pressure differential, providing inherent safety functionality that is both reliable and simple to maintain.
2Reliability
If pneumatic circuits are used for safety modules, then safety function is provided, but adaptability to different conditions deteriorates
Solution Approach 1:
The safety module allows adjustment of pressure threshold parameters through mechanical means, enabling adaptation to different inflation requirements. The valve can be configured with different spring tensions or pressure settings to match various tyre types and inflation conditions, providing versatility without compromising safety.
3Productivity
If pressure is applied continuously for tyre inflation, then inflation speed is improved, but measurement precision and safety deteriorate
Solution Approach 1:
The inflating device implements periodic inflation cycles with alternating phases of pressure application and measurement. The system applies pressure in intervals, then pauses to allow stable pressure readings to be taken, ensuring both efficient inflation and accurate pressure measurement without requiring continuous pressure application.
4Reliability
If safety modules with pneumatic circuits are used, then safety function is provided, but device complexity increases
Solution Approach 1:
The patent extracts the essential safety function from complex pneumatic control circuits and implements it through a simple mechanical pressure-actuated valve. This removes unnecessary complexity while retaining the core safety functionality, resulting in a more straightforward and maintainable system.
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 device provides safe, efficient, and adaptable tyre inflation, reducing inflation time by intermittently applying pressure and ensuring reliable pressure reading, with a robust safety module that prevents over-inflation.
Implementation Method 1
The inflating module comprises a first cylinder and a second cylinder, both operatively connected to the primary valve. The first cylinder is configured to cause the primary valve to open while the second cylinder is configured to cause the primary valve to close.
Implementation Method 2
The inflating device comprises a pressure sensor configured to detect a pressure value in the air feed line downstream of the inflating module and upstream of the secondary valve.
Data Source
Figure 1A
Figure 1B
Figure 2A~2B
AI summary
A tyre inflating device (100) comprises an air feed line (200), an inflating module (300), including a primary valve (301) movable between a closed position and an open position for closing and opening the feed line (200) and an auxiliary safety module (700), including a secondary valve (500), movable between a closed position and an open position for closing and opening the feed line (200); a pressure sensor (600), configured to detect a pressure value downstream of the inflating module (300) and a control unit (800) programmed to control the secondary valve (500) as a function of the pressure value detected by the pressure sensor (600).