Muffler Rear Spoiler Elastic Mounting Aerodynamics
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Solution Overview
Problem
Conventional rear spoilers for lateral-installation-type mufflers suffer from flow loss and aerodynamic inefficiencies due to long distances between the muffler and spoiler, requiring complex sub-parts, high manufacturing costs, and difficulty in accurately adjusting gaps, which affects stability and fuel efficiency.
Innovation Solution
A rear spoiler design featuring fixing units on the muffler and locking units with elastic support portions and a single, elastically deformable fixing hook, reducing the number of bolts and bracket size, allowing secure mounting with a single bolt and minimizing the need for reinforcement members, thus improving airflow straightness and assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the distance from the rear end of the muffler to the rear end of the rear spoiler is long, then the rear spoiler can be mounted, but turbulence forms between the muffler and rear spoiler, deteriorating aerodynamic performance
Solution Approach 1:
The patent applies the dynamics principle by making the rear spoiler movable relative to the muffler through a telescopic structure. The spoiler can adjust its position forward and backward along the longitudinal axis of the vehicle, allowing optimization of the distance between the muffler and spoiler to minimize turbulence while maintaining mounting flexibility. This dynamic adjustment capability resolves the contradiction by enabling the system to adapt to optimal aerodynamic configurations.
2Strength
If a large number of sub-parts are used for the rear spoiler, then rigidity is enhanced, but manufacturing time and costs increase
Solution Approach 1:
The patent merges multiple sub-parts into a single integrated rear spoiler structure. Instead of using separate left and right brackets, multiple bolts, and reinforcement members, the invention employs one piece that combines all these functions. This monolithic structure maintains the necessary rigidity while dramatically simplifying manufacturing processes and reducing production time and costs.
3Reliability
If left and right brackets and multiple bolts are used for mounting the rear spoiler, then the mounting structure is robust, but the number of sub-parts increases, increasing manufacturing complexity
Solution Approach 1:
The patent combines multiple mounting components (brackets and bolts) into a single integrated mounting structure. The one-piece rear spoiler includes built-in mounting features that eliminate the need for separate brackets and multiple fasteners, reducing the number of sub-parts while maintaining robust mounting capability through the integrated design.
4Reliability
If a four-bolt fastening structure is employed to ensure robustness, then mounting reliability is improved, but assembly processes become more difficult and working efficiency deteriorates
Solution Approach 1:
The patent merges multiple fastening operations into a simplified single-step or reduced-step mounting process. The integrated one-piece structure with built-in mounting features allows for fewer fasteners and simpler assembly procedures, improving productivity while maintaining reliable mounting through the consolidated design.
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 design enhances aerodynamic performance by reducing flow loss, minimizes manufacturing costs and weight, and simplifies assembly, leading to improved fuel efficiency and product quality by eliminating the need for complex sub-parts and large brackets.
Implementation Method 1
Each of the locking units may include an elastic support portion, and the elastic support portion may include a fixing hook formed above a respective one of the left side and the right side of the spoiler body
Data Source
AI summary
A rear spoiler for a muffler of a vehicle includes fixing units, mounted to a left side and a right side of the muffler, and locking units, formed at a left side and a right side of a spoiler body so as to be locked to the fixing units. Each of the locking units includes an elastic support portion, which has a fixing hook and a bolt hole formed below the fixing hook. Each of the fixing units also includes a bracket mounted to the muffler, a first hole through which the fixing hook passes, a second hole in which the fixing hook that has passed through the first hole is fitted, a bolt hole formed below the first and second holes, and a bolt fastened into the bolt hole formed in the bracket via the bolt hole formed in the elastic support portion.