Replaceable Filter Element With Resonator Chambers for Outlet Noise
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Solution Overview
Problem
Existing filter systems are not cost-effective in manufacturing and do not adequately address noise reduction through resonator structures, particularly for secondary outlets.
Innovation Solution
A filter system with a filter housing, a replaceable filter element, and a resonator structure that includes a filter bellows and a partition element, where the partition element projects into a secondary resonator area, forming two acoustically coupled chambers for noise attenuation, with the partition element being easily replaceable and adaptable to the installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a resonator structure with partition element is integrated into the filter element, then noise reduction effectiveness is improved, but device complexity increases
Solution Approach 1:
The resonator structure is merged with the filter element by integrating the partition element directly into the filter element body. The partition element forms sealed chambers within the filter element itself, eliminating the need for separate resonator housings or additional noise reduction components. This integration achieves noise reduction while avoiding the complexity of multiple separate components.
Solution Approach 2:
The filter element is designed to serve multiple functions simultaneously: it performs both filtration and noise reduction. The partition element creates sealed chambers that act as resonators for noise attenuation while the filter bellows performs particle filtration. This multi-functionality eliminates the need for separate dedicated noise reduction devices.
2Object-affected harmful factors
If the partition element projects into the secondary resonator area, then noise attenuation performance is improved, but manufacturing precision requirements increase
Solution Approach 1:
The partition element is designed with specific local geometric features including defined projection depth into the secondary resonator area and controlled wall thickness. These local quality parameters are optimized to achieve effective noise attenuation at specific frequencies while maintaining manufacturability through standard production tolerances.
3Reliability
If the filter element design ensures compatibility with filter housing, then reliability is improved, but adaptability decreases
Solution Approach 1:
The filter element design incorporates standardized geometric parameters and interface dimensions that ensure reliable compatibility with the filter housing. The mounting arrangement and overall dimensions are defined with specific parameter ranges that guarantee proper fit and function while maintaining the ability to adapt to different housing configurations within those parameter bounds.
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
The system effectively reduces noise in secondary outlets while being cost-effective to manufacture and ensuring compatibility and quality standards by allowing only suitable filter elements to be installed, with the partition element being easily replaceable and adaptable.
Implementation Method 1
a resonator structure for noise reduction of the secondary outlet... two sealed chambers (22, 24)... acoustically coupled via the at least one opening (25)... dampen and thus reduce noise
Implementation Method 2
the two chambers (22, 24) are acoustically coupled to one another via the at least one opening (25) in the partition element (26)
Implementation Method 3
a filter bellows (12) arranged in the flow direction between the main inlet (102) and the two outlets (104, 106)
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a filter element (10) for a filter system (100), comprising a holding arrangement (14) which has a filter bellows (12) in one area and a separating wall element (26) in another area, said separating wall element (26), in the intended state of use of the filter element (10), is arranged between two sealed chambers (22, 24) of a resonator structure (20), in particular a resonator structure (20) for noise damping of a secondary connection outlet (106), the separating wall element (26) having at least one opening (25) via which the chambers (22, 24) are acoustically coupled to one another in the intended state of use. The invention further comprises a filter system (100) comprising such a filter element (10).