Exhaust Isolator Mount Anti-Rotation Clevis Bracket
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Solution Overview
Problem
Conventional isolator mounts for motor vehicle exhaust systems require multiple hangers, which are inefficient, difficult to install, and reduce durability, while also posing challenges in designing mounting points on the vehicle body due to stiffness and strength requirements.
Innovation Solution
The isolator mount includes an elastomeric isolator element, an isolator bracket, and a clevis bracket with an anti-rotation feature, allowing for secure attachment with a single hanger and improved heat dissipation, reducing the need for multiple hangers and simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional isolator mounts use multiple hangers to support the exhaust component, then the mounting strength and stiffness are improved, but the device complexity and installation difficulty increase
Solution Approach 1:
The patent combines multiple hanger functions into a single integrated hanger assembly. The isolator bracket and clevis bracket are designed to work together with one hanger, eliminating the need for multiple separate hangers while maintaining the required mounting strength and stiffness through the integrated bracket design and anti-rotation features.
Solution Approach 2:
The mounting system is segmented into functional components: the isolator bracket that interfaces with the exhaust component, the clevis bracket that interfaces with the vehicle body, and the single hanger that provides suspension. This segmentation allows each component to be optimized for its specific function while reducing overall complexity.
2Stability of the object's composition
If conventional isolator mounts use multiple hangers, then the mounting stability is improved, but the installation time and labor requirements increase
Solution Approach 1:
The isolator bracket and clevis bracket are pre-configured with alignment features and the anti-rotation key-way slot arrangement, allowing for quick and accurate installation with a single hanger. The preliminary design of the bracket interfaces eliminates the need for complex alignment procedures that would otherwise be required with multiple hangers.
3Object-affected harmful factors
If the hanger length is increased to provide thermal clearance for the rubber isolator element, then the heat damage to the isolator is prevented, but the device complexity and space requirements increase
Solution Approach 1:
Instead of increasing the length of the hanger in one dimension, the patent uses the isolator bracket to create thermal management in a different dimension. The bracket extends between the exhaust component and the isolator element, providing a thermal barrier that allows for shorter hanger length while still protecting the isolator from heat damage.
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
This design enhances durability, reduces installation complexity, and allows for easier heat dissipation, thereby prolonging the life of the isolator element and improving the overall efficiency of the exhaust system.
Implementation Method 1
The isolator element has an aperture for receiving a portion of the hanger and dampens vibrations between the hanger and the isolator bracket
Data Source
AI summary
An isolator mount for supporting an exhaust component on a vehicle body via a hanger. The isolator mount includes an isolator element, isolator bracket, and clevis bracket. The isolator element has an aperture for receiving a portion of the hanger and dampens vibrations. The isolator bracket extends at least partially about and supports the isolator element and further includes a neck portion. The clevis bracket has a first half and a second half that are secured to the neck portion of the isolator bracket with a fastener that extends along a longitudinal axis. The first half of the clevis bracket and the neck portion of the isolator bracket include an anti-rotation feature in the form of a key-way slot and a key that is received in the key-way slot to prevent rotation of the isolator bracket relative to the clevis bracket about the longitudinal axis of the fastener.