Air Dryer Cartridge Guiding Assembly for Tool-Free Mounting
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Solution Overview
Problem
The existing compressed air treatment systems for vehicles, particularly utility vehicles, face challenges in the delicate and time-consuming process of assembling and disassembling air dryer cartridges without compromising filtering performance or damaging sealing elements, often requiring advanced tools and resulting in unbalanced loads.
Innovation Solution
A filter assembly design featuring a flange neck portion with a guiding element and tab element, allowing for precise and easy mounting and dismounting of the air dryer cartridge onto an air treatment device without advanced tools, using symmetrically arranged components and fixing elements like pins and sealing shoulders to secure the assembly without unbalanced loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional securing means are used for assembling air dryer cartridges, then the air dryer cartridge can be secured onto the air treatment device, but the assembling and disassembling process becomes delicate and time-consuming
Solution Approach 1:
The securing means is divided into separate functional elements: a bayonet lock mechanism with distinct engagement and disengagement components. The air dryer cartridge and air treatment device are designed with separable coupling elements that can be quickly engaged and disengaged, eliminating the need for complex multi-step assembly processes.
Solution Approach 2:
The conventional approach requires delicate manual assembly operations. The invention inverts this by designing a self-aligning bayonet lock mechanism where the engagement process is simplified through geometric constraints and guide features that automatically guide the components into proper alignment during assembly, making the process intuitive and rapid.
2Ease of operation
If conventional securing means are used for assembling air dryer cartridges, then the air dryer cartridge can be secured onto the air treatment device, but the process requires advanced tools
Solution Approach 1:
The bayonet lock mechanism is designed to be self-servicing, where the components themselves provide the alignment and securing functions. The guide features and engagement geometry enable the assembly to self-align and lock without requiring external alignment tools or specialized equipment, making the process accessible with basic hand tools.
3Reliability
If conventional securing means are used for assembling air dryer cartridges, then the air dryer cartridge can be secured onto the air treatment device, but unbalanced loads are created within the filter assembly
Solution Approach 1:
The bayonet lock mechanism incorporates asymmetric engagement features that naturally guide the components into a balanced, centered position during assembly. The asymmetric guide grooves and protrusions ensure proper orientation and distribute loads evenly across the coupling interface, preventing unbalanced loads and ensuring stable, reliable mounting.
Data Source
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AI summary
A filter assembly (100) for a compressed air treatment system of a vehicle, comprising an air dryer cartridge (102) configured to be removably secured onto an air treatment device, the air treatment device (102) comprising a housing including a peripheral portion and a central portion, wherein the central portion includes a central wall (110) defining an outer wall surface, the air dryer cartridge (102) comprising a flange base portion (112) and a flange neck portion (114), wherein the flange neck portion (114) includes a flange wall (116) extending from the flange base portion (112) and defining an inner neck surface, the flange neck portion (114) being configured to be mounted onto the central portion (108) of the housing of the air treatment device such that the inner neck surface faces towards the outer wall surface of the central wall (110), the filter assembly further comprising a guiding element that is included in the flange neck portion (114) of the air dryer cartridge (102) or on the central wall (110) of the air treatment device, wherein the guiding element (118) is configured to guide the flange neck portion (114) onto the central wall (110) of the air treatment device up to a defined end position.