Oil Pan Sealing Base Structure for Gasket Stability
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Solution Overview
Problem
The existing oil pan sealing systems tend to experience degradation in sealing performance due to the gasket tilting and protruding from the rim portion during attachment to a target device, especially when the rim portion has a long straight section, leading to potential leaks and reduced sealing efficiency.
Innovation Solution
The oil pan design incorporates a base portion projecting from the rim to support a projection of the sealing member, preventing tilt and protrusion by ensuring the sealing member remains in contact with the target device, thus maintaining sealing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gasket is placed on a rim portion with a long straight portion to seal the oil pan, then the sealing member can be installed, but the gasket tends to tilt and protrude during attachment, degrading sealing performance
Solution Approach 1:
The invention introduces a base portion with a specific structure at the location where the gasket is placed. This base portion has a surface that contacts the gasket, providing localized support precisely where needed to prevent tilting, while the rest of the rim portion maintains its original design for other functions.
Solution Approach 2:
The base portion acts as an intermediary element between the rim portion and the gasket. It provides a stable platform that mediates the interaction between the rigid rim portion and the flexible gasket, preventing the gasket from tilting during attachment operations.
2Reliability
If the gasket is made of low rigidity material to secure sealing performance, then sealing is improved, but the gasket becomes more prone to tilting and protruding during attachment
Solution Approach 1:
The base portion provides localized structural support specifically at the gasket placement area. This allows the gasket to maintain its low rigidity for good sealing while the base portion compensates for the lack of rigidity by preventing tilting and maintaining positional stability during attachment.
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
This configuration effectively prevents the gasket from tilting and protruding, ensuring reliable sealing performance and reducing the risk of oil leaks during attachment to target devices like automatic transmissions or engines.
Implementation Method 1
a sealing member (3) that is composed of an elastic member
Data Source
AI summary
A sealing-equipped oil pan includes a gasket and an oil pan having a bottom portion and a peripheral wall for storing oil, and a ring-shaped rim portion located at an end of the peripheral wall and provided with the gasket, and is fastened to a target device with the gasket interposed between the rim portion and the target device. The gasket has a projection projecting from a sealing surface configured to come into contact with the target device for sealing. The peripheral wall of the oil pan has a base portion projecting from the rim portion and supporting the projection of the gasket. The base portion supports the projection of the gasket to prevent the gasket from tilting with respect to the rim portion, thereby preventing protrusion of the gasket.