Valve Sealing Member Locking for Vacuum-Triggered Opening
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Solution Overview
Problem
Existing valve systems lack a mechanism to detect negative or vacuum pressure without electronics and often act prematurely, leading to unwanted air flow when there is no desired pressure condition.
Innovation Solution
A locking mechanism housing with a locking diaphragm and compression diaphragm system that senses pressure differentials to prevent premature sealing member movement, ensuring the valve only opens when the desired pressure conditions are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking mechanism is added to detect pressure conditions, then the reliability of valve operation is improved, but the device complexity increases
Solution Approach 1:
The locking mechanism utilizes pneumatic pressure differentials detected by diaphragms to mechanically lock or unlock the sealing member. The first diaphragm responds to pressure in the first chamber, and the second diaphragm responds to pressure in the second chamber, creating a mechanical interlock that prevents premature valve opening without requiring electronic sensors or complex control systems.
Solution Approach 2:
The locking mechanism is self-actuating based on pressure conditions. When the desired vacuum pressure is achieved in the second chamber, the pressure differential automatically causes the diaphragms to move and unlock the sealing member, eliminating the need for external control systems or manual intervention.
2Productivity
If the valve opens immediately when pressure conditions are met, then the productivity is improved, but unwanted air flow occurs due to premature opening
Solution Approach 1:
The locking mechanism applies a preliminary restraining force on the sealing member through the diaphragm assembly. This mechanical lock prevents the sealing member from moving prematurely before the desired vacuum pressure is achieved, thereby preventing unwanted air flow while maintaining readiness for rapid opening once conditions are met.
Solution Approach 2:
The diaphragms continuously sense the pressure conditions in their respective chambers and provide mechanical feedback to the locking mechanism. When the pressure differential indicates that vacuum has been achieved, the feedback mechanism automatically releases the lock, ensuring the valve opens only at the appropriate moment.
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
Effectively prevents unwanted air flow by ensuring the valve only opens when the appropriate pressure conditions are present, maintaining system integrity and preventing contamination.
Implementation Method 1
A locking mechanism housing with a locking diaphragm and compression diaphragm system that senses pressure differentials to prevent premature sealing member movement
Data Source
AI summary
An apparatus for locking a sealing member of a valve in a piping system or an enclosed system comprises: (a) a locking mechanism housing having a upper end, a lower end opposed to the upper end, and a body between the upper end and the lower end; (b) at least a locking mechanism opening formed on the body; (c) at least a locking mechanism disposed in the locking mechanism opening; (d) a valve housing bleeder opening, wherein the valve further comprises a valve housing and a sealing member; wherein the locking mechanism housing, the at least a locking mechanism opening, at least a locking mechanism, and the sealing member is disposed inside the valve housing; wherein a first pressure exists in the upper end of the locking mechanism housing; and wherein a second pressure exists in the lower end of the locking mechanism housing.