Integrated Air Filter Assembly for Fast Multi-Element Replacement
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Solution Overview
Problem
Existing fresh air systems on construction sites, such as those used in road pavers, require complex and time-consuming filter element replacement processes, leading to downtime and potential installation errors that can affect filtration efficiency and risk clogging due to incorrect filter ordering.
Innovation Solution
A rigidly connected two- or three-filter-element system that forms a single unit, allowing for easy handling, installation, and removal as a cohesive unit, with bonded or form-fit connections, eliminating the need for separate housings and reducing maintenance effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple filter elements are installed individually in a filter housing, then the filtration can be performed in multiple stages, but the replacement process becomes complex and time-consuming
Solution Approach 1:
The patent combines multiple filter elements into a single integrated filter unit that is pre-assembled with all necessary sealing elements and housing components. This allows the entire multi-stage filtration system to be replaced as one unit, eliminating the complexity of individual filter installation while maintaining multi-stage filtration capability.
Solution Approach 2:
The filter elements are pre-assembled into a complete filter unit before installation, with all sealing elements and components properly positioned in advance. This preliminary assembly eliminates the need for complex on-site installation procedures and ensures correct positioning of each filter element.
2Ease of operation
If multiple individual filter elements are handled separately, then each filter can be positioned in the housing, but installation errors occur and filter elements may be installed in wrong order
Solution Approach 1:
By merging multiple filter elements into a single integrated unit with predetermined positioning, the system eliminates installation errors that occur when handling individual filters. The integrated design ensures that filter elements cannot be installed in the wrong order or position, as their relative positions are fixed during manufacturing.
Solution Approach 2:
The integrated filter unit is manufactured as a precise replica of the intended final installation configuration, with all filter elements, sealing elements, and housing components pre-positioned exactly as they should be in the final installation, eliminating installation errors.
3Reliability
If filter housing is opened and cleaned before filter installation, then proper installation is ensured, but the maintenance time increases
Solution Approach 1:
The filter unit is pre-assembled with all cleaning and preparation steps completed during manufacturing. The integrated design includes pre-positioned sealing elements and pre-cleaned surfaces, eliminating the need for on-site cleaning and preparation activities that consume maintenance time.
Solution Approach 2:
The integrated filter unit is designed as a disposable or easily replaceable component that is pre-prepared and pre-assembled. Instead of cleaning and maintaining the filter housing and individual filters, the entire unit is replaced as a single component, significantly reducing maintenance time.
4Productivity
If filter elements are handled individually, then they can be installed in sequence, but the risk of clogging increases due to incorrect filter ordering
Solution Approach 1:
By combining multiple filter elements into a single integrated unit with fixed relative positions, the system ensures that filter elements are always installed in the correct sequence. The integrated design prevents misordering that would lead to clogging, while the pre-assembled nature allows rapid installation without compromising filtration performance.
Data Source
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AI summary
The invention relates to an air filter arrangement (1) for cleaning a bitumen-containing volume flow (V), comprising at least a first filter element (2) and a second filter element (3), which are arranged as sequentially acting filter elements (2, 3) for cleaning the bitumen-containing volume flow (V), wherein the first filter element (2) and the second filter element (3) are rigidly connected to each other. The invention further relates to a method for performing the replacement of several filter elements (2, 3).