Rotatable Post-Processing Exhaust Pipes for Component Sharing
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Solution Overview
Problem
Existing post-processing systems for internal combustion engines require layout-specific component changes, making component sharing difficult.
Innovation Solution
A post-processing system with cylindrical first and second processing sections, connected by rotatable pipes at specific angles, allowing for flexible layout configurations without changing components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the layout of post-processing system components is changed according to vehicle type, then the system can be adapted to different vehicle configurations, but component sharing becomes difficult and device complexity increases
Solution Approach 1:
The exhaust pipes are designed with rotational joints that allow dynamic adjustment of pipe orientation. The first pipe can rotate around the first cylinder axis, and the second pipe can rotate around the second cylinder axis, enabling the same components to adapt to different layout configurations without changing the components themselves.
Solution Approach 2:
The post-processing system uses universal cylindrical processing sections that can be oriented at different angles through the rotatable pipes. The first processing section and second processing section maintain consistent dimensions and shapes regardless of layout, allowing the same components to serve multiple vehicle types and configurations.
2Adaptability or versatility
If different components are used for different layouts, then each layout can be optimized, but manufacturing cost and device complexity increase due to inability to share components
Solution Approach 1:
The rotatable pipe design allows a single standardized component to be dynamically positioned at different angles and orientations. The first pipe rotating around the first cylinder axis and the second pipe rotating around the second cylinder axis enable one set of processing sections to serve multiple layout configurations, achieving both optimization and standardization.
Solution Approach 2:
The system changes the orientation parameter of the pipes through rotation rather than changing the components themselves. By adjusting the rotational angle of the pipes, the same processing sections can be optimized for different layouts while maintaining manufacturing standardization.
3Ease of operation
If fixed-angle pipes are used to connect processing sections, then assembly is simplified, but adaptability to different vehicle layouts is reduced
Solution Approach 1:
The pipes incorporate rotational joints that provide controlled degrees of freedom. The first pipe rotates around the first cylinder axis and the second pipe rotates around the second cylinder axis, allowing simple rotational adjustment during assembly while achieving flexible final configurations for different vehicle layouts.
Data Source
AI summary
A post-processing system includes: a cylindrical first processing section extending in a first cylinder axis direction and processing exhaust discharged from an internal combustion engine; a cylindrical second processing section disposed on an exhaust downstream side compared to the first processing section, extending in a second cylinder axis direction, and processing the exhaust; a first pipe extending in a direction at a first angle to the first cylinder axis direction, rotatably disposed around a first cylinder axis, and guiding out the exhaust processed by the first processing section; a second pipe extending in a direction at a second angle to the second cylinder axis direction, rotatably disposed around a second cylinder axis, and introducing the exhaust processed by the second processing section; and a third pipe formed to form an angle obtained of the first angle and the second angle, and coupling the first pipe with the second pipe.