Filter Element Seal Support Device for Installation Force Reduction
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Solution Overview
Problem
The existing filter systems for internal combustion engines face challenges in simplifying the installation and removal of filter elements while maintaining an effective sealing action.
Innovation Solution
The introduction of a seal support device on the filter element, which interacts with a corresponding pressing device in the filter housing, allows for improved sealing by transmitting pressing forces to the seal, thus enhancing the sealing action and simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a seal is arranged circumferentially at the radial outer circumferential side of the filter element, then sealing effectiveness is improved, but installation complexity and required forces increase
Solution Approach 1:
A seal support device is introduced as an intermediary component between the filter element seal and the filter housing pressing device. This support device transmits and distributes the pressing forces from the housing to the seal, enabling effective sealing without requiring direct complex interaction between the housing and the seal. The support device acts as a mediator that simplifies the force transmission mechanism while maintaining sealing reliability.
Solution Approach 2:
The seal support device extends in the axial direction with a support surface that faces the seal, adding a dimensional aspect to the sealing mechanism. This axial extension allows the support device to engage with both the seal and the pressing device, creating a multi-dimensional force transmission path that simplifies the overall installation process while maintaining effective sealing.
2Reliability
If pressing forces are transmitted to the seal through the seal support device, then sealing effectiveness is improved, but the number of components increases
Solution Approach 1:
The seal support device is integrated with the filter element structure, merging the sealing function with the existing filter element components. By combining the support function with the filter element framework, the design avoids adding completely separate components, thus limiting the increase in overall component count while still achieving effective sealing through the coordinated action of the integrated support device and pressing mechanism.
3Ease of operation
If the seal support device engages with the pressing device, then installation forces are reduced, but the precision of force transmission must be maintained
Solution Approach 1:
The seal support device features a specifically designed support surface with optimized geometry and material properties localized at the critical sealing interface. This local quality enhancement ensures precise force transmission at the seal contact area while the rest of the support device structure can be simpler. The support surface is specifically engineered to distribute pressing forces uniformly across the seal, maintaining precision while reducing overall installation forces.
Data Source
AI summary
A fluid filter has a filter housing with inlet opening for fluid to be cleaned and outlet opening for cleaned fluid. A filter element arranged in an element receptacle of the filter housing separates inlet opening from outlet opening. The filter housing has a housing body with an installation opening to the element receptacle, through which the filter element in an installation direction is introduced into the element receptacle. The filter housing has a housing cover for closing the installation opening. The installation opening is arranged in a transverse side of the housing body that is lateral relative to the housing axis. The filter housing has a sealing surface, surrounding the housing axis at least partially circumferentially, for contacting a seal of the filter element. The filter element has a seal support device for the seal and the filter housing has a pressing device for the seal support device.