2872947
Nitrogen Oxide Sensor
Cummins®

Introduction

The Cummins 2872947 Nitrogen Oxide Sensor is a component designed to monitor nitrogen oxide (NOx) levels in the exhaust of heavy-duty trucks. This sensor ensures that emissions are kept within regulatory limits, contributing to environmental protection and engine efficiency.

Basic Concepts of Nitrogen Oxide Sensors

Nitrogen oxides (NOx) are gases formed during the combustion process in diesel engines. These gases contribute to air pollution and smog formation. Nitrogen oxide sensors measure the concentration of NOx in the exhaust, enabling the engine management system to adjust fuel injection and other parameters to maintain emissions within acceptable limits ¹.

Function and Operation of the 2872947 Nitrogen Oxide Sensor

The Cummins 2872947 Nitrogen Oxide Sensor measures the concentration of nitrogen oxides in the exhaust stream. Positioned downstream of the selective catalytic reduction (SCR) system, it assesses the effectiveness of emissions control processes. The sensor uses electrochemical technology to detect NOx levels, converting the chemical reaction into an electrical signal interpreted by the engine management system ².

Purpose of the 2872947 Nitrogen Oxide Sensor in Truck Operation

This sensor ensures heavy-duty trucks comply with emissions regulations by providing precise measurements of NOx levels. It allows the engine management system to make necessary adjustments to maintain optimal performance while minimizing environmental impact. Additionally, it contributes to overall vehicle efficiency by ensuring emissions control systems function correctly ³.

Key Features of the Cummins 2872947 Nitrogen Oxide Sensor

The Cummins 2872947 Nitrogen Oxide Sensor is designed for durability and accuracy. Constructed with high-quality materials, it withstands harsh exhaust system conditions. The sensor incorporates advanced technology to enhance precision and reliability, ensuring consistent performance over time.

Benefits of Using the Cummins 2872947 Nitrogen Oxide Sensor

Using this sensor offers several advantages. It provides improved emissions control by accurately monitoring and regulating NOx levels, leading to enhanced engine performance. It can also result in potential cost savings for fleet operators by reducing the risk of non-compliance penalties and improving fuel efficiency.

Installation and Integration

Proper installation of the Cummins 2872947 Nitrogen Oxide Sensor is crucial for its effective operation. It should be installed according to the manufacturer’s guidelines, ensuring it is securely positioned in the exhaust system and correctly connected to the engine management system. This integration allows for seamless communication between the sensor and the vehicle’s control systems.

Troubleshooting and Maintenance

Common issues with nitrogen oxide sensors may include inaccurate readings or sensor failure. Diagnostic procedures should be followed to identify and resolve these problems. Regular maintenance, such as cleaning the sensor and checking for physical damage, can help ensure optimal performance and longevity.

Regulatory Compliance and Emissions Standards

The Cummins 2872947 Nitrogen Oxide Sensor assists heavy-duty trucks in meeting various emissions standards and regulations, including those set by the Environmental Protection Agency (EPA) and the California Air Resources Board (CARB). By accurately monitoring NOx levels, the sensor helps ensure that trucks operate within the prescribed emissions limits.

Cummins Inc.

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong commitment to innovation, Cummins has a diverse product portfolio that includes diesel engines and emissions control technologies. The company’s focus on sustainability and environmental responsibility is reflected in its development of advanced emissions control solutions like the 2872947 Nitrogen Oxide Sensor.

Nitrogen Oxide Sensor Compatibility with Cummins Engines

The Nitrogen Oxide Sensor part number 2872947, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. This sensor plays a crucial role in monitoring and controlling nitrogen oxide emissions, ensuring compliance with environmental regulations and maintaining optimal engine performance.

F3.8 CM2350 Engines

The F3.8 CM2350 engines are compatible with the Nitrogen Oxide Sensor 2872947. This sensor is engineered to integrate smoothly with the F3.8 CM2350, providing accurate readings and contributing to the engine’s overall efficiency and emission control.

ISB6.7 CM2350 B101 and ISV (Nissan) Engines

The ISB6.7 CM2350 B101 and ISV (Nissan) engines also support the use of the Nitrogen Oxide Sensor 2872947. Cummins has ensured that this sensor fits these engines without requiring any modifications, allowing for a straightforward installation process. The sensor’s compatibility with these engines helps in maintaining stringent emission standards and enhancing engine performance.

QSF3.8 CM2350 F107 Engines

The QSF3.8 CM2350 F107 engines are another series where the Nitrogen Oxide Sensor 2872947 is applicable. This sensor is designed to work efficiently with the QSF3.8 CM2350 F107, ensuring that the engine operates within the required emission limits while providing reliable performance data.

By ensuring compatibility with these Cummins engines, the Nitrogen Oxide Sensor 2872947 helps maintain the integrity of the engine’s emission control system, contributing to both environmental compliance and engine longevity.

Role of Part 2872947 Nitrogen Oxide Sensor in Engine Systems

The Part 2872947 Nitrogen Oxide (NOx) Sensor is an integral component within the aftertreatment system of modern engines, specifically designed to monitor and regulate emissions. This sensor is strategically positioned to interact with several key components to ensure optimal performance and compliance with environmental regulations.

Interaction with the Aftertreatment Device

The NOx sensor works in conjunction with the aftertreatment device, which is responsible for reducing harmful emissions before they are released into the atmosphere. By providing real-time data on NOx levels, the sensor allows the engine control unit (ECU) to make necessary adjustments to the fuel injection and combustion processes. This ensures that the aftertreatment device operates within its optimal range, enhancing its efficiency in reducing emissions.

Integration within the Aftertreatment System

Within the broader aftertreatment system, the NOx sensor plays a pivotal role in maintaining the system’s overall effectiveness. The sensor’s accurate readings enable the ECU to fine-tune the operation of various components, such as the selective catalytic reduction (SCR) system. This integration ensures that the aftertreatment system can dynamically respond to changing conditions, maintaining low emission levels across a wide range of operating conditions.

Relationship with the Catalytic Converter

The catalytic converter is a key component in the aftertreatment system, designed to convert harmful pollutants into less harmful substances. The NOx sensor provides essential feedback to the ECU, allowing it to optimize the air-fuel mixture and combustion timing. This optimization enhances the catalytic converter’s ability to reduce NOx and other pollutants, ensuring that the engine meets stringent emission standards.

Mounting on the Sensor Bracket

The NOx sensor is typically mounted on a sensor bracket, which secures it in the exhaust stream where it can accurately measure NOx levels. The sensor bracket not only provides a stable mounting point but also ensures that the sensor is positioned correctly within the exhaust system. This precise placement is vital for the sensor to deliver accurate and reliable data, which is crucial for the ECU to make informed decisions regarding engine operation and emission control.

Conclusion

The Cummins 2872947 Nitrogen Oxide Sensor is a critical component in the emissions control system of heavy-duty trucks. By accurately monitoring NOx levels, it ensures compliance with environmental regulations, enhances engine performance, and contributes to overall vehicle efficiency. Proper installation, regular maintenance, and understanding its role within the aftertreatment system are essential for maximizing the benefits of this sensor.