Exhaust Sensor Fastening Device Angular Positioning
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Solution Overview
Problem
Existing exhaust aftertreatment systems face challenges in adapting to various installation spaces and positions due to sensors often being outside the required angular ranges, leading to potential corrosion from condensate accumulation.
Innovation Solution
An exhaust aftertreatment system with a sensor fastening device featuring multiple angularly spaced fastening means, such as a sensor ring with 3 to 6 attachment points, allowing for flexible sensor positioning within desired angular ranges to prevent corrosion and accommodate different installation configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the exhaust aftertreatment system is adapted to different installation spaces by means of variable mounting angle, then the adaptability to different installation positions is improved, but the sensors end up outside of the required angular ranges for some installation positions
Solution Approach 1:
The sensor fastening device is segmented into multiple discrete fastening means (at least three) spaced apart in the circumferential direction, allowing the sensor to be fastened at different angular positions. This segmentation enables the system to maintain adaptability while achieving precise angular positioning compliance.
Solution Approach 2:
The sensor fastening device provides multiple possible fastening positions, making the sensor angular position adjustable or selectable rather than fixed. This dynamic capability allows the sensor to be positioned within the required angular range regardless of the installation position of the exhaust aftertreatment system.
2Ease of operation
If sensors are installed in fixed angular positions, then the installation process is simplified, but the system cannot accommodate different installation spaces and positions
Solution Approach 1:
The sensor fastening device with multiple fastening means serves multiple functions: it maintains simple installation procedures while simultaneously providing adaptability to different installation spaces and positions. Each fastening means can be selected based on the specific installation requirements, making the device universally applicable.
Solution Approach 2:
The fastening device transitions from a fixed single-position design to a dynamic multi-position design, allowing the sensor to be installed at different angular positions while maintaining ease of installation through standardized fastening mechanisms.
3Device complexity
If only two fastening means are provided for sensors, then the device complexity is reduced, but the ability to position sensors within required angular ranges is insufficient
Solution Approach 1:
The fastening device is divided into at least three discrete fastening means spaced circumferentially, providing sufficient positioning options without creating excessive complexity. This segmented approach balances device simplicity with the needed adaptability for sensor positioning.
Solution Approach 2:
Different regions of the fastening device (different fastening means) are provided with specific angular positions tailored to meet the required angular ranges for sensor installation, ensuring local optimization of sensor positioning capability.
Data Source
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AI summary
The invention relates to an exhaust aftertreatment system (A), preferably a modular exhaust aftertreatment system (A), preferably for a vehicle or a pump or power unit, with at least one exhaust module (M1) having an inlet section (1) and an outlet section (2), wherein at least one sensor mounting device (3.1, 3.2) is provided. According to the invention, the sensor mounting device comprises at least three mounting means (4.1, 4.2) spaced apart from one another circumferentially or angularly for mounting the exhaust sensor.