3093313
Injector Fuel Supply Tube
Cummins®

Introduction

The Cummins Injector Fuel Supply Tube, part number 3093313, is a critical component designed to facilitate the efficient delivery of fuel to the injectors in commercial trucks. This part is integral to the operation of the fuel system, ensuring that the engine receives a consistent and precise amount of fuel for combustion. Its role in maintaining engine performance and efficiency underscores its significance in the overall functionality of commercial trucks.

Basic Concepts of Injector Fuel Supply Tubes

An Injector Fuel Supply Tube is a conduit within the fuel system that directs fuel from the fuel rail to the injectors. This tube plays a role in the fuel system by ensuring that fuel is delivered under the correct pressure and at the right time to the injectors. The performance of the engine is influenced by the efficiency of this delivery, as it affects the combustion process and, consequently, the power output and fuel economy of the vehicle ¹.

Role of the Injector Fuel Supply Tube in Truck Operation

The Injector Fuel Supply Tube is vital in the fuel delivery system of a truck. It ensures that fuel flows correctly to the injectors, which then atomize the fuel into the combustion chamber. This precise delivery is crucial for the engine’s operation, as it affects the mixture of air and fuel that is ignited to produce power. The tube’s design and material contribute to its ability to withstand the high pressures and temperatures within the fuel system, ensuring reliable performance ¹.

Key Features of the Cummins Injector Fuel Supply Tube

The Cummins Injector Fuel Supply Tube is characterized by its high-quality design and construction. It is made from durable materials that can resist the corrosive effects of fuel and the high pressures within the system. The precision engineering of this part ensures that it fits securely within the fuel system, minimizing the risk of leaks and ensuring efficient fuel delivery. These features contribute to the overall reliability and performance of the engine ¹.

Benefits of Using the Cummins Injector Fuel Supply Tube

Utilizing the Cummins Injector Fuel Supply Tube offers several advantages. It contributes to improved fuel efficiency by ensuring that fuel is delivered precisely when needed. This precise delivery enhances engine performance, allowing for more consistent power output. Additionally, the reliability of this component reduces the likelihood of fuel system failures, leading to lower maintenance costs and increased uptime for commercial trucks ¹.

Installation and Compatibility

Proper installation of the Cummins Injector Fuel Supply Tube is important for ensuring its effectiveness within the fuel system. It is designed to be compatible with various Cummins engine models, facilitating easy integration into the existing fuel system. Following the manufacturer’s guidelines for installation ensures that the tube is securely fitted and functions as intended ¹.

Maintenance and Troubleshooting

Maintaining the Injector Fuel Supply Tube involves regular inspections for signs of wear or damage. Common issues may include leaks or blockages, which can affect fuel delivery and engine performance. Troubleshooting steps may involve checking for proper fitment, inspecting for damage, and ensuring that all connections are secure. Addressing these issues promptly helps maintain the efficiency and reliability of the fuel system ¹.

Common Failure Modes and Solutions

Injector Fuel Supply Tubes may experience failure modes such as cracking, leaking, or clogging. These issues can be caused by exposure to high pressures, temperatures, or corrosive fuels. Solutions may include replacing the tube with a new one, ensuring that the fuel system is clean and free of contaminants, and verifying that the installation was performed correctly. Regular maintenance and inspections can help identify potential issues before they lead to significant problems ¹.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s commitment to excellence is reflected in its product range, which includes a variety of components designed to enhance the performance and reliability of commercial vehicles ¹.

Cummins Injector Fuel Supply Tube (Part 3093313) Compatibility

The Cummins Injector Fuel Supply Tube, part number 3093313, is a critical component in the fuel delivery system of various engines. This part is designed to ensure the efficient and reliable transfer of fuel from the fuel pump to the injectors, which is essential for the proper functioning of the engine.

QST30 CM552 Engines

The Injector Fuel Supply Tube (3093313) is compatible with the QST30 CM552 engines. This compatibility ensures that the fuel supply tube fits seamlessly with the engine’s design, providing a secure and leak-free connection. The QST30 CM552 engines are known for their robust performance and reliability, making them a popular choice in various applications. The use of the 3093313 part number guarantees that the fuel supply tube meets the specific requirements of these engines, ensuring optimal performance and longevity ¹.

Grouping of Engines

In addition to the QST30 CM552 engines, the Injector Fuel Supply Tube (3093313) is also compatible with other Cummins engines within the same group. This grouping is based on similar design and operational characteristics, ensuring that the fuel supply tube fits and functions correctly across a range of engines. By using the 3093313 part number, engine operators can be confident that the fuel supply tube is designed to meet the specific needs of these engines, providing a reliable and efficient fuel delivery system ¹.

Role of Part 3093313 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, identified by part number 3093313, is integral to the efficient operation of fuel injection systems in modern engines. This component facilitates the precise delivery of fuel from the fuel rail to the injectors, ensuring that each cylinder receives the correct amount of fuel for optimal combustion.

Integration with Fuel Rail

The Injector Fuel Supply Tube connects directly to the fuel rail, which is a pressurized conduit that distributes fuel to each injector. This connection ensures a consistent fuel pressure is maintained across all injectors, which is vital for balanced engine performance and emissions control ¹.

Interaction with Fuel Injectors

Each Injector Fuel Supply Tube is paired with a fuel injector, which it supplies with pressurized fuel. The injectors then atomize the fuel into the intake air stream, where it is combusted in the cylinders. The design of the supply tube ensures minimal fuel pressure drop, allowing the injectors to operate efficiently and consistently ¹.

Contribution to Engine Performance

The performance of an engine is significantly influenced by the fuel delivery system. The Injector Fuel Supply Tube plays a key role in this system by ensuring that fuel is delivered to the injectors with precision and reliability. This contributes to smoother engine operation, improved fuel efficiency, and reduced emissions ¹.

Role in Fuel Management System

In conjunction with the Engine Control Unit (ECU), the fuel management system relies on the Injector Fuel Supply Tube to deliver fuel according to the engine’s operational demands. The ECU monitors various parameters such as engine load, RPM, and air-fuel ratio to adjust the fuel delivery, and the supply tube is a key component in this dynamic process ¹.

Support for Direct Injection Systems

In direct injection systems, where fuel is injected directly into the combustion chamber rather than the intake port, the Injector Fuel Supply Tube must be capable of withstanding higher pressures. It ensures that the fuel is delivered at the precise moment and in the correct quantity to achieve the desired combustion efficiency and power output ¹.

Maintenance of Fuel System Integrity

The Injector Fuel Supply Tube also contributes to the overall integrity of the fuel system by preventing fuel leaks and ensuring that the fuel delivery system remains sealed. This is important for maintaining the correct fuel pressure and preventing fuel from entering areas where it could cause damage or create a safety hazard ¹.

Conclusion

The Cummins Injector Fuel Supply Tube, part number 3093313, is a fundamental component in the fuel delivery system of an engine, contributing to performance, efficiency, and reliability. Its role in connecting the fuel rail to the injectors and ensuring consistent fuel pressure is essential for the proper functioning of the engine. Regular maintenance and proper installation are key to maximizing the benefits of this component.