Air Cleaner Resonator Integration via Bulging Case Walls
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional air cleaner devices for internal combustion engines with resonators have limited layout flexibility due to restricted internal volume and require complex soundproof seal structures, increasing component parts and manufacturing costs.
Innovation Solution
An air cleaner device with a chamber in the air cleaner case featuring U-shaped bulging parts that connect inner walls, allowing for flexible resonator placement without additional components, and utilizing hollow cylindrical communication holes to control noise muffling and dust/water entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If resonators are configured independently from the air cleaner case by use of other members, then the layout freedom for resonators is improved, but the structure becomes complicated and the number of component parts increases
Solution Approach 1:
The resonator is integrated into the air cleaner case by forming a bulging part that extends from the inner wall of the case. This merging of the resonator with the air cleaner case eliminates the need for separate resonator components and reduces structural complexity while maintaining layout freedom.
Solution Approach 2:
The air cleaner case is designed to serve multiple functions: it houses the cleaning filter, accommodates the resonator through its bulging part, and provides structural support. This multi-functionality reduces the need for additional dedicated components.
2Adaptability or versatility
If resonators are configured independently from the air cleaner case, then the layout freedom for resonators is improved, but the manufacturing cost increases
Solution Approach 1:
By merging the resonator with the air cleaner case through the bulging part, the number of parts to be manufactured and assembled is reduced. This integration simplifies the manufacturing process and reduces assembly operations, thereby lowering manufacturing costs.
Solution Approach 2:
The air cleaner case is segmented into functional zones: the main chamber for the cleaning filter, the bulging part for the resonator, and the cover part. This segmentation allows each component to be optimized for its specific function while being manufactured as part of the integrated structure.
3Volume of stationary object
If the internal volume of the air cleaner case is limited, then the compactness is improved, but the space for laying out resonators is restricted
Solution Approach 1:
The bulging part extends in a direction perpendicular to the main chamber, utilizing the third dimension (depth) to accommodate the resonator. This dimensional transition allows the resonator to be integrated without significantly increasing the overall footprint of the air cleaner case.
Solution Approach 2:
The resonator is nested within the bulging part of the air cleaner case, with the bulging part itself forming the resonator structure. This nesting allows the resonator to be housed within the existing case volume without requiring additional external space.
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
Enhances layout freedom for resonators without increasing component count or manufacturing costs, while maintaining effective noise reduction and preventing dust/water ingress.
Implementation Method 1
a resonator adapted to reduce intake noise due to the intake air... the resonator is formed by a structure in which a compartment continuously surrounded by the bulging part and the inner walls is closed with a lid provided with a communication hole
Data Source
AI summary
A bottom inner wall of an air cleaner case is provided with a first and second bulging parts and roughly U-shaped in section which have projected surfaces on the inside of the air cleaner case and recessed surfaces on the outside of the air cleaner case. First and second resonators are formed by a structure wherein first and second compartments continuously surrounded by the first and second bulging parts as well as a pair of side inner walls, the bottom inner wall and a partition wall of the air cleaner case are closed with first and second lids provided with communication holes.