Replaceable Vehicle Resonator with Adjustable Volume
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Solution Overview
Problem
Conventional vehicle resonators have a fixed internal volume, limiting their ability to attenuate noise at specific frequencies and are difficult to replace or adjust, requiring new air cleaner cases to change attenuation frequencies.
Innovation Solution
A vehicle resonator with a replaceable resonance container mounted in a sliding manner on the air cleaner housing, featuring an expansion/contraction deforming portion in a bellows shape and an adjusting device to vary the resonance space volume, allowing easy adjustment of noise attenuation frequencies without detaching the container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the resonator is integrated with the air cleaner case, then the structural stability is improved, but the ease of replacement deteriorates
Solution Approach 1:
The resonator is divided into separate components: the resonance container and the mounting portion. The resonance container can be detached from the mounting portion, allowing replacement without replacing the entire air cleaner case, thus improving ease of repair while maintaining structural stability through the mounting portion design.
2Manufacturing precision
If the resonator has a fixed internal volume, then the manufacturing precision is improved, but the adaptability deteriorates
Solution Approach 1:
The resonator design incorporates adjustable elements that allow the internal volume to be changed after manufacturing. This dynamic adjustment capability enables the same resonator to adapt to different noise attenuation requirements without requiring new manufacturing, thus improving adaptability while maintaining manufacturing precision.
3Manufacturing precision
If the air cleaner case is newly manufactured to change the resonator frequency, then the manufacturing precision is improved, but the productivity deteriorates
Solution Approach 1:
By segmenting the resonator into a replaceable resonance container and a permanent mounting portion, the system allows frequency adjustment through component replacement rather than entire case manufacturing. This significantly improves productivity by reducing manufacturing time and resources while maintaining the precision of the mounting portion.
4Stability of the object's composition
If the resonator is integrated into the intake duct, then the structural stability is improved, but the ease of operation deteriorates
Solution Approach 1:
The resonator is segmented into a detachable resonance container and a fixed mounting portion integrated with the intake duct. This allows the resonance container to be easily removed and replaced for maintenance or frequency adjustment, improving ease of operation while the mounting portion maintains structural stability within the intake duct system.
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
Enables easy replacement and adjustment of noise attenuation frequencies, improving vehicle NVH performance by allowing the resonator to be tuned according to specific requirements without the need for new air cleaner cases.
Implementation Method 1
The resonator attenuates noise and pulsations at specific frequencies by using the resonance principle
Implementation Method 2
The expansion/contraction deforming portion may be formed in a bellows shape by use of elastic material
Data Source
AI summary
A vehicle resonator includes a mounting portion provided in an air cleaner housing of a vehicle, and a resonance container mounted on the mounting portion to be replaceable in a sliding manner and having a resonance space therein communicating with an intake passage inside the air cleaner housing.