Air Filter Double Wall Vibration Damping
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Solution Overview
Problem
Air filter arrangements for large diesel engines face challenges in reducing noise and resonance vibrations due to the large end walls of the housing, which can vibrate and cause disturbances.
Innovation Solution
The solution involves combining the side walls of the housing with the bottom disks of the filter insert to form a double wall, allowing for frictional shearing movements that dampen vibrations, and using interlocking profiles for guiding the filter insert during installation and removal, ensuring precise positioning and easy handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the housing has large end walls to accommodate the filter insert, then the filter arrangement can be adapted to existing free spaces on trucks, but the large end walls can be excited to vibrate and cause noise and resonance vibrations
Solution Approach 1:
The patent combines the housing side walls with the filter insert base plates to form a unified double-wall structure. This merging of previously separate components creates a reinforced assembly where the housing walls and filter insert base plates work together as a single structural unit, improving vibration resistance while maintaining adaptability to different installation spaces.
Solution Approach 2:
The patent creates a composite structure by integrating the housing side walls and filter insert base plates into a double-wall configuration. This composite construction combines the structural elements of the housing with the base plates of the filter insert to form a reinforced assembly that resists vibrations and noise while accommodating various free space dimensions.
2Stability of the object's composition
If the housing and filter insert are tightly coupled to ensure structural stability, then vibration resistance improves, but the ease of filter replacement deteriorates
Solution Approach 1:
The patent segments the coupling mechanism into discrete guide profiles and guide surfaces that are distributed along the insertion path. Instead of a single rigid coupling point, the segmentation allows for gradual engagement and disengagement, maintaining structural stability during operation while enabling easy replacement by simply pulling the filter insert along the guide profiles.
Solution Approach 2:
The patent introduces guide profiles and guide surfaces as intermediary elements between the housing and filter insert. These guide features mediate the interaction between the two components, providing a controlled interface that ensures proper alignment and stable coupling during operation while allowing smooth insertion and removal without requiring complete disassembly.
3Manufacturing precision
If guide profiles are added to couple the housing and filter insert, then positioning precision improves, but the device complexity increases
Solution Approach 1:
The patent designs the guide profiles and guide surfaces to serve multiple functions simultaneously. These guide features not only provide positioning precision during filter insertion and removal but also serve as structural coupling elements that maintain stability during operation. By making these components multi-functional, the patent avoids adding separate elements for each function, thereby limiting the increase in device complexity.
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 design effectively reduces noise and resonance vibrations, enhances the ease of filter replacement, and maintains the structural integrity of the filter assembly while ensuring optimal airflow and filtration efficiency.
Implementation Method 1
with possible bending deformations of the double wall, d. H. of the housing side wall and bottom disk of the filter insert, frictional shearing movements occur between the respective side wall and bottom disk, so that an effective vibration damping takes place
Data Source
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AI summary
Inside a box-like housing there is arranged a filter insert which has two bottom discs (7, 7') directly adjacent to the side walls of the housing. The housing can be divided with respect to a parting plane which is substantially orthogonal to the side walls, wherein profiled strips (100), which are parallel to the parting plane and arranged on the bottom discs (7, 7') of the filter insert, bear in a form- and/or force-fitting manner against the inner side of the side walls of the housing and/or can be fixed on or between those regions of the side wall parts of the housing that are on the parting plane side.