Exhaust Pipe Bridge Assembly With Funneling Crossover Flow
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Solution Overview
Problem
The construction of crossover interconnections between exhaust pipes in internal combustion engine systems is costly and time-consuming due to the need for multiple 360-degree welds, which complicates the assembly process and increases manufacturing costs.
Innovation Solution
A bridge mechanism that mechanically and fluidically connects two exhaust pipes using curved plates and coupling tubes with frustoconical portions to funnel exhaust gases between them, reducing the need for extensive welding and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple 360-degree welds are used to connect pipe sections, then the connection strength and sealability are improved, but the manufacturing cost and assembly time increase
Solution Approach 1:
The patent merges multiple separate pipe sections and weld joints into a single monolithic bridge structure. This integration eliminates the need for multiple 360-degree welds while maintaining connection strength and sealability, as the bridge is formed as one continuous piece that mechanically and fluidically interconnects the exhaust pipes.
Solution Approach 2:
The bridge structure is segmented into functional zones (curved portions for sealing, frustoconical portions for funneling) that are integrated into a single piece. This segmentation of function within a monolithic structure allows complex fluid direction and sealing without requiring multiple separate components and welds.
2Strength
If multiple separate pipe sections are connected using multiple welds, then the structural integrity is improved, but the device complexity and assembly process increase
Solution Approach 1:
Multiple pipe sections and connection joints are merged into a single monolithic bridge structure. This reduces device complexity by eliminating multiple components and assembly steps while maintaining structural integrity through the continuous material structure of the bridge.
3Reliability
If traditional crossover pipe configurations with multiple welds are used, then the exhaust fluid connection is improved, but the productivity and manufacturing efficiency decrease
Solution Approach 1:
The bridge is formed as a monolithic structure that combines multiple connection functions into one piece, eliminating multiple weld operations. This significantly improves manufacturing efficiency and productivity while maintaining reliable exhaust fluid connection between the pipes.
Solution Approach 2:
The frustoconical portions of the bridge automatically funnel and direct exhaust flow between pipes through their geometric shape, eliminating the need for additional valves or flow control mechanisms. This self-directed flow management simplifies the system and improves manufacturing efficiency.
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 solution reduces the complexity and cost of assembly by minimizing the number of welds required, creating a robust and leak-free connection that facilitates efficient exhaust gas mixing and communication between pipes, thereby enhancing the overall exhaust system's efficiency and economic viability.
Implementation Method 1
first and second coupling tubes including first and second frustoconical portions to funnel exhaust from the first exhaust pipe toward the second exhaust pipe and vice versa
Implementation Method 2
first curved portion sealingly fixed to an outer surface of the first exhaust pipe... second curved portion sealingly fixed to an outer surface of the second exhaust
Data Source
AI summary
An exhaust system comprises a first exhaust pipe having a first aperture, a second exhaust pipe having a second aperture and a bridge mechanically and fluidically interconnecting the first and second exhaust pipes. The bridge includes a first plate including a first curved portion sealingly fixed to an outer surface of the first exhaust pipe. The bridge includes a second plate including a second curved portion sealingly fixed to an outer surface of the second exhaust. The first and second plates each include first and second coupling tubes including first and second frustoconical portions to funnel exhaust from the first exhaust pipe toward the second exhaust pipe and vice versa. The first plate is sealingly coupled to the second plate.