Dual Outlet Muffler with Intermediate Pipe for Noise Reduction
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Solution Overview
Problem
Conventional vehicle mufflers with a single exhaust gas outflow pipe fail to convey a dynamic and powerful image, particularly for small vehicles, and their outlet positioning at the sides of the rear bumper does not appeal to young consumers, limiting their market appeal.
Innovation Solution
A dual exhaust gas outflow pipe muffler design with the outlets positioned at the lower center of the rear bumper, featuring a muffler housing with multiple baffles forming chambers, an intermediate pipe connecting these chambers, and sound-absorbing materials to reduce noise and improve heat insulation, along with connection channels to minimize noise and enhance image appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a single exhaust gas outflow pipe is used, then the structure is simple, but the vehicle cannot convey a dynamic and powerful image
Solution Approach 1:
The exhaust system is segmented into multiple outflow pipes (dual exhaust configuration) instead of a single pipe, creating a more dynamic and powerful visual image while maintaining manageable structural complexity through modular chamber design
2Shape
If the exhaust gas outflow pipe outlet is positioned at the side of the rear bumper, then the structure is simple, but it does not appeal to young consumers seeking polished image
Solution Approach 1:
The outlet position is moved from the horizontal side position to the vertical lower center position of the rear bumper, creating a more appealing polished image while the intermediate pipe routing handles the manufacturing complexity
3Object-generated harmful factors
If multiple chambers are formed with baffles, then noise reduction is improved, but the device complexity increases
Solution Approach 1:
The muffler housing is divided into multiple chambers using baffles, creating distinct sound absorption zones that effectively reduce exhaust noise while maintaining a manageable structural complexity through systematic arrangement
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 dual exhaust gas outflow pipe configuration enhances the vehicle's dynamic and polished image, effectively reduces exhaust noise and flow-induced noise, and improves heat insulation, making it more appealing to consumers and suitable for small vehicles.
Implementation Method 1
A chamber in which the inlet and outlet of the exhaust gas inflow pipe and the inlet and outlet of the intermediate pipe may be not received, may be filled with a sound-absorbing material for improve heat insulating performance
Implementation Method 2
A chamber in which the inlet and outlet of the exhaust gas inflow pipe and the inlet and outlet of the intermediate pipe may be not received, may be filled with a sound-absorbing material for improve heat insulating performance
Data Source
AI summary
A muffler for a vehicle may include a plurality of baffles to form a plurality of chambers, an exhaust gas inflow pipe having an outlet connected to one of the chambers inside the muffler housing through the baffles, an intermediate pipe disposed in parallel with the exhaust gas inflow pipe in the muffler housing through the baffles to fluid connect at least two chambers and a plurality of exhaust gas outflow pipes having an inlet positioned with an outlet of the intermediate pipe in any one chamber divided by the baffles and an outlet protruding outward through the muffler housing, without passing through the baffles, such that the exhaust gas passing through the intermediated pipe may be discharged outside the muffler housing.