Consolidated After-Treatment Module for Engine Exhaust
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Solution Overview
Problem
The complexity of after-treatment systems for engines, including multiple components and intricate installations, makes retrofitting and initial installation labor-intensive and costly, necessitating a simplified approach for streamlined installation processes.
Innovation Solution
A consolidated after-treatment module that integrates a selective catalytic reduction (SCR) catalyst, NOx sensors, a controller, and a urea dosing system within a single housing, allowing for easier installation by connecting the module to the engine's exhaust system and regulating urea delivery, thereby simplifying the installation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple after-treatment components (catalyst, sensors, controller, urea system) are installed separately in the exhaust system, then each component can be optimized independently, but the installation becomes labor-intensive and costly requiring multiple tradesmen
Solution Approach 1:
The patent combines multiple after-treatment components (SCR catalyst, NOx sensors, controller, urea dosing system) into a single integrated housing assembly. This merging allows the entire after-treatment system to be installed as one unit, dramatically reducing installation labor and complexity while maintaining the functional optimization of individual components through modular design
2Reliability
If after-treatment systems include comprehensive components (catalyst, sensors, plumbing, electronics), then pollutant reduction effectiveness is improved, but installation time and labor costs increase significantly
Solution Approach 1:
The patent pre-assembles all after-treatment components (catalyst, sensors, plumbing, electronics, urea system) into a complete integrated housing assembly before installation. This preliminary assembly ensures all components are properly configured and connected, allowing for rapid installation as a single unit that maintains comprehensive pollutant reduction capabilities without the time penalty of on-site assembly
3Adaptability or versatility
If after-treatment components are distributed throughout the exhaust system, then system functionality is maintained, but retrofitting becomes difficult and expensive
Solution Approach 1:
The patent merges all essential after-treatment components into a single retrofitable housing assembly that can be installed as one unit in the exhaust system. This approach maintains full system functionality (catalyst for NOx reduction, sensors for monitoring, controller for management, urea system for reductant delivery) while dramatically simplifying retrofitting operations to require minimal disassembly and reassembly of the exhaust system
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 solution significantly reduces installation time and labor requirements, allowing for 'plug and play' installation by a single individual, facilitating both manufacturing and retrofitting of after-treatment systems, while maintaining effective pollutant reduction capabilities.
Implementation Method 1
at least one selective catalytic reduction (SCR) catalyst disposed within the housing and configured to facilitate a reduction reaction with NOx in the exhaust
Data Source
AI summary
An after-treatment system is provided, including an after-treatment module. The after-treatment module may include a housing configured to be installed in an exhaust system of an exhaust producing engine such that at least a portion of the exhaust from the engine flows through the housing. The housing may include at least one selective catalytic reduction (SCR) catalyst disposed within the housing and configured to facilitate a reduction reaction with NOx in the exhaust. In addition, the housing may include at least one NOx sensor disposed within the housing and configured to take measurements of an amount of NOx in the exhaust. Further, the housing may include a controller disposed on the housing and configured to receive the NOx measurements from the NOx sensor.