Closing Element With Self-Reinforcing Bottom For High Pressure Sealing
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Solution Overview
Problem
Existing closing elements for sealing holes in engine and valve blocks, chemical containers, and similar components under internal pressure are not effective at withstanding higher internal pressures, as they fail to secure anchoring to the hole wall.
Innovation Solution
A hollow cylindrical main body with a closing bottom and a spreading element that applies radial pressure through an axial force, causing deformation and additional lateral pressing force, enhancing anchoring by widening the main body and providing reinforced anchoring, especially with a supporting flange and circumferential grooves for increased stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple closing element design is used, then production and operation are simple, but the element cannot withstand high internal pressures
Solution Approach 1:
The closing element transitions from a static structure to a dynamic one where the closing bottom bends under internal pressure, generating additional lateral pressing forces that widen the main body and enhance anchoring in the hole wall, allowing the simple design to withstand high pressures
Solution Approach 2:
The wall thickness relationship between the main body and spreading element is optimized (main body wall thickness less than spreading element wall thickness) to enable controlled deformation of the closing bottom while maintaining structural integrity under high pressure
2Ease of operation
If a simple closing element design is used, then production and operation are simple, but secure anchoring to the hole wall is not guaranteed
Solution Approach 1:
The closing bottom's bending behavior under axial force creates dynamic anchoring enhancement where the deformation generates additional lateral pressing forces that press the main body radially against the hole wall, securing the element in place during operation
Solution Approach 2:
The closing element utilizes the internal pressure itself to generate the bending moment and lateral pressing forces needed for anchoring, so the higher the internal pressure, the stronger the anchoring effect, eliminating the need for complex pre-anchoring 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
The solution allows the closing element to withstand substantially higher internal pressures without detachment from the hole, with enhanced anchoring and self-reinforcement, facilitating easy installation and operation while maintaining simplicity.
Implementation Method 1
The bending moment and deformation of the closing bottom resulting from this brings about an additional lateral pressing force or widening of the main body
Implementation Method 2
a spreading element that can be pressed into the main body, said spreading element applying radial pressure to the inner wall of the main body in the installed state
Data Source
AI summary
Closing element for sealing holes subjected to internal pressure includes a hollow cylindrical main body insertable into the hole substantially without play, and a hat-like spreading element pressable into the main body. The spreading element applies radial pressure to the inner wall of the main body in the installed state, wherein the main body is spread and pressed against the wall of the hole. The main body has a closing bottom having a circumferential radial ring surface and a slightly conical cone surface connected thereto. During operation, the closing bottom is pressed against the end face of the spreading element by the internal pressure and is bent over inner and outer edges of the end face and deformed so as to expand radially. This results in strengthened anchoring of the closure in the material of the component, and self-reinforcement of the press-out force required to remove the closure.