Filter system and element with sealing device
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Solution Overview
Problem
Existing filter systems for internal combustion engines require complex and tool-dependent processes for seal replacement during maintenance, which can lead to inefficiencies and potential damage to the seal.
Innovation Solution
A filter system with a sealing device featuring a seal carrier that supports a seal with radially inner surfaces, allowing for easy assembly and disassembly without additional tools, and providing axial and radial compression for reliable sealing, while being designed for symmetric installation and self-centering capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a seal is mounted directly on a filter element or housing part, then the seal replacement process becomes complex and requires additional tools, but the structural simplicity and ease of maintenance are improved by using a separate seal carrier
Solution Approach 1:
The sealing device is segmented into a separate seal carrier that can be independently attached to and detached from the filter element. This allows the seal to be replaced by simply detaching and reattaching the seal carrier without requiring complex tools or procedures, thus improving ease of operation while maintaining structural simplicity
Solution Approach 2:
The seal carrier is extracted as a separate functional component from both the seal and the filter element. This extraction allows the seal replacement process to be simplified to merely detaching and reattaching the carrier, eliminating the need for complex replacement procedures while keeping the overall structure relatively simple
2Reliability
If a seal is tightly fixed to prevent displacement, then sealing reliability is improved, but the ability to adjust seal position and accommodate different filter element orientations is reduced
Solution Approach 1:
The seal carrier incorporates dynamic retention elements such as retaining edges and grooves that allow the seal to be securely held in position during operation while still permitting controlled movement during installation. The retention mechanism is designed to be flexible enough to accommodate different filter element orientations while maintaining reliable sealing contact
Solution Approach 2:
Different regions of the seal carrier have different retention characteristics: the sealing surface provides stable contact for reliability, while the retention edges and grooves provide controlled flexibility for position adjustment. This local differentiation of retention quality allows the seal to be both reliably fixed and adaptable to different orientations
3Stability of the object's composition
If additional retention elements are added to secure the seal, then sealing stability is improved, but the ease of seal replacement and assembly without tools is reduced
Solution Approach 1:
The retention elements are merged into the seal carrier structure itself rather than being separate components. The retaining edges and grooves are integrated features of the carrier that provide stable seal retention while allowing the entire assembly to be attached and detached as a single unit without requiring additional tools or complex assembly procedures
Data Source
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AI summary
The invention relates to a filter system (100) for filtering a fluid, which system comprises a filter element (10), a filter housing (108) comprising a first housing part (109) and a second housing part (110) in which the filter element (10) is disposed, and a sealing device (20) disposed between the first housing part (109) and the second housing part (110) for sealing a housing interior (120) relative to the surroundings (122). The sealing device (20) has a seal (24) disposed on a seal carrier (22). To this end the seal (24) bears with at least one radially inner interior surface (18) on a radially outer bearing face (25) of the seal carrier (22) and is supported radially inwards by the bearing face (25), and/or has at least one retaining contour (23) for fixing the seal (24) on the seal carrier (22), and/or the seal (22) has at least one coupling element (36, 46) for connection to the first housing part (109) and/or the second housing part (110). The invention further relates to a sealing device (20) for installation in such a filter system (100) and to an arrangement consisting of a filter element (10) and a sealing device (20).