4932457
Electronic Fuel Control Actuator
Cummins®

Introduction

The Electronic Fuel Control Actuator 4932457, manufactured by Cummins, is a pivotal component in the operation of commercial trucks. This actuator is designed to manage fuel delivery in diesel engines, enhancing engine performance, efficiency, and emissions control ¹.

Basic Concepts

Electronic fuel control actuators are essential in modern diesel engine management systems. They operate based on precise fuel metering, controlling the amount of fuel injected into the engine’s combustion chamber through electronic signals that adjust the actuator’s position, thereby regulating fuel flow ².

Functionality

The Electronic Fuel Control Actuator 4932457 functions within the truck’s fuel system by receiving signals from the engine control unit (ECU). These signals are derived from various engine parameters such as load, speed, and temperature. The actuator then adjusts the fuel rack position to deliver the precise amount of fuel required for efficient combustion, ensuring the engine operates within its optimal performance range ³.

Purpose and Role

The primary role of the Electronic Fuel Control Actuator 4932457 is to optimize fuel delivery and engine performance. By precisely controlling the fuel injection process, it ensures that the engine receives the correct amount of fuel at the right time, enhancing engine efficiency, overall performance, and contributing to reduced emissions.

Key Features

The Electronic Fuel Control Actuator 4932457 is characterized by precision control over fuel delivery, ensuring accurate metering. Its durable construction is designed to withstand the demanding conditions of commercial truck operations. Additionally, it is engineered for compatibility with Cummins engines, ensuring seamless integration and optimal performance.

Benefits

The benefits of the Electronic Fuel Control Actuator 4932457 include improved fuel efficiency, leading to cost savings for fleet operators. It enhances engine performance by ensuring optimal fuel delivery under various operating conditions. Furthermore, by precisely controlling fuel injection, it contributes to reduced emissions, aligning with environmental regulations and standards.

Troubleshooting and Maintenance

Regular inspection and maintenance of the Electronic Fuel Control Actuator 4932457 are recommended to maintain optimal performance. Common issues may include electrical faults or mechanical wear. Troubleshooting should involve checking electrical connections, inspecting for physical damage, and ensuring proper calibration. Regular maintenance practices, such as cleaning and lubrication, can help prolong the actuator’s lifespan.

Integration with Cummins Engines

The Electronic Fuel Control Actuator 4932457 is designed for seamless integration with Cummins engines. Its compatibility ensures that it works within the engine’s fuel system, contributing to the overall efficiency and performance of Cummins-powered trucks. The design considers the unique requirements of Cummins engines, ensuring optimal functionality.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history spanning over a century, Cummins has established a strong reputation in the commercial truck industry for producing reliable and high-performance engines. Their product portfolio includes engines, filtration systems, and other components designed to meet the demanding needs of commercial transportation.

Compatibility with Cummins Engines

The Electronic Fuel Control Actuator (part number 4932457) is compatible with several Cummins diesel engines, ensuring optimal engine performance and efficiency.

ISB CM850

The ISB CM850 engine benefits from the precise control offered by the 4932457 actuator, ensuring consistent performance and fuel efficiency.

QSB4.5 CM850 (CM2850)

In the QSB4.5 CM850 (CM2850) engine, the 4932457 actuator ensures smooth operation of the fuel control system, contributing to the engine’s reliability and longevity.

QSB5.9 CM850

The QSB5.9 CM850 engine relies on the 4932457 actuator for effective fuel control, providing necessary adjustments to maintain optimal performance under various operating conditions.

QSB6.7 CM850 (CM2850)

The QSB6.7 CM850 (CM2850) engine utilizes the 4932457 actuator to manage its fuel injection system, ensuring the engine delivers required power while maintaining fuel efficiency and minimizing emissions.

Grouping of Engines

The compatibility of the 4932457 actuator with the QSB4.5 CM850 (CM2850) and QSB6.7 CM850 (CM2850) engines highlights the design consistency across these models. Both engines share similar specifications and operational requirements, making the 4932457 actuator a suitable choice for both. This grouping underscores the versatility and broad applicability of the part within the Cummins engine lineup.

Role in Engine Systems

The Electronic Fuel Control Actuator (part 4932457) is integral to the precise management of fuel delivery within modern engine systems. This component works in concert with several key elements to ensure optimal engine performance and efficiency.

Integration with the Fuel Pump

The Electronic Fuel Control Actuator interfaces directly with the fuel pump to regulate the amount of fuel delivered to the engine. By modulating the fuel pump’s output, it ensures that the engine receives the exact amount of fuel required under varying conditions, whether the vehicle is idling, accelerating, or cruising. This precise control helps maintain fuel efficiency and reduces emissions.

Coordination with the Fuel System

Within the broader fuel system, the Electronic Fuel Control Actuator collaborates with sensors and the engine control unit (ECU) to monitor and adjust fuel delivery in real-time. It responds to inputs such as throttle position, engine load, and air-fuel ratio to make instantaneous adjustments. This dynamic interaction ensures that the engine operates within its optimal performance window, enhancing both power output and fuel economy.

Enhanced Performance and Efficiency

By fine-tuning fuel delivery, the Electronic Fuel Control Actuator contributes to smoother engine operation and improved drivability. It helps prevent issues such as fuel starvation during rapid acceleration and over-fueling during deceleration, which can lead to inefficient combustion and increased emissions.

Conclusion

The Electronic Fuel Control Actuator 4932457 plays a significant role in the fuel management system, ensuring that the engine receives the precise amount of fuel needed for efficient and effective operation. Its integration with Cummins engines enhances performance, efficiency, and emissions control, making it a critical component in the operation of commercial trucks.