3094751
Injector Fuel Supply Tube
Cummins®

Introduction

The Injector Fuel Supply Tube (Part #3094751) from Cummins is a critical component in the fuel system of heavy-duty truck engines. This part ensures the efficient and consistent delivery of fuel to the injectors, which is essential for the atomization of fuel and subsequent combustion within the engine cylinders.

Basic Concepts of Injector Fuel Supply Tube

The Injector Fuel Supply Tube operates by providing a dedicated pathway for fuel from the fuel rail to the injectors. This tube ensures that fuel is delivered under precise pressure and timing, which is necessary for the injectors to function correctly. The design of the tube allows it to withstand high pressures and temperatures, maintaining the integrity of the fuel as it travels to the point of injection ¹.

Purpose and Role in Truck Operation

In heavy-duty truck engines, the Injector Fuel Supply Tube connects the fuel rail to the injectors. It ensures that each injector receives a consistent supply of fuel, which is vital for the engine’s performance and efficiency. The tube’s design contributes to the precise delivery of fuel, which is necessary for optimal combustion and power output ².

Key Features

The Injector Fuel Supply Tube is characterized by several key features that enhance its functionality. It is typically made from durable materials that can resist corrosion and high temperatures. The design includes precise fittings and connections that ensure a secure and leak-free attachment to both the fuel rail and the injectors. Additionally, the tube may feature reinforced sections to handle the high pressures within the fuel system.

Benefits

The Injector Fuel Supply Tube offers several benefits that contribute to the overall performance of the engine. It provides improved fuel delivery by ensuring that fuel reaches the injectors without restriction or loss of pressure. This leads to enhanced engine performance, as the injectors can operate with an optimal fuel supply. Furthermore, the reliability of the fuel supply tube contributes to the increased reliability of the engine, reducing the likelihood of fuel-related issues ³.

Installation Process

Installing the Injector Fuel Supply Tube requires careful attention to detail to ensure a proper fit and function. The process involves disconnecting the old tube, if present, and connecting the new tube to the fuel rail and injectors using the appropriate fittings. Specific tools may be required to ensure that connections are tight and secure. It is important to follow the manufacturer’s guidelines to avoid damage to the tube or the fuel system components.

Common Issues and Troubleshooting

Common issues with the Injector Fuel Supply Tube may include leaks, blockages, or damage due to wear and tear. Troubleshooting these issues involves inspecting the tube for signs of wear, checking connections for tightness, and ensuring that there are no obstructions in the fuel pathway. Solutions may range from tightening connections to replacing the tube if it is damaged.

Maintenance Tips

Regular maintenance of the Injector Fuel Supply Tube is important to ensure its longevity and optimal performance. This includes periodic inspection for signs of wear or damage, cleaning the tube and connections to prevent buildup, and ensuring that all connections are secure. Following the manufacturer’s recommended maintenance schedule can help prevent issues and extend the life of the tube.

Compatibility and Applications

The Injector Fuel Supply Tube is designed to be compatible with various Cummins engine models and is suitable for a range of heavy-duty truck applications. Its design allows it to fit into different truck configurations, providing a versatile solution for fuel delivery in the automotive industry.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and related technologies. With a history of innovation and a commitment to quality, Cummins has established a reputation for producing reliable and high-performance automotive components. The company’s dedication to excellence is reflected in its product range, which includes components like the Injector Fuel Supply Tube, designed to meet the demanding requirements of heavy-duty applications.

Cummins Injector Fuel Supply Tube 3094751 Compatibility

The Cummins Injector Fuel Supply Tube 3094751 is designed to facilitate the precise delivery of fuel to the injectors, which is essential for maintaining optimal engine performance and fuel efficiency.

QST30 CM552 Engines

The Injector Fuel Supply Tube 3094751 is specifically engineered to fit seamlessly with the QST30 CM552 engines. This compatibility ensures that the fuel supply system functions without leaks or restrictions, which can lead to performance degradation and increased emissions. The tube’s design allows for a secure connection between the fuel supply lines and the injectors, ensuring that the fuel is delivered at the correct pressure and flow rate.

Grouping of Engines

This part is compatible with a range of Cummins engines. The QST30 CM552 engines represent a subset of this broader compatibility. Other engines within this group may include models that share similar design characteristics and fuel system requirements. Ensuring that the correct part is used for the specific engine model is crucial for maintaining the integrity of the fuel delivery system and preventing potential engine damage.

Importance of Correct Fitment

The correct fitment of the Injector Fuel Supply Tube 3094751 is paramount for the overall health and performance of the engine. Any discrepancies in the design or dimensions of the tube can lead to fuel leaks, improper fuel delivery, and ultimately, engine performance issues. Cummins has designed this part to meet the stringent requirements of their engines, ensuring that it provides a reliable and durable solution for the fuel supply system.

Role of Part 3094751 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, identified by part number 3094751, is an integral component in the fuel delivery system of an engine. This tube facilitates the transport of fuel from the fuel rail to the individual fuel injectors. Its function ensures that each injector receives a consistent and regulated flow of fuel, which is essential for the precise operation of the fuel injection system.

In the context of the fuel rail, the Injector Fuel Supply Tube connects to the rail at one end and extends to the injectors at the other. The fuel rail, a pressurized conduit, distributes fuel to all injectors. The tube’s role is to maintain this pressure and deliver fuel efficiently without leaks or restrictions.

When considering the fuel injectors, the Injector Fuel Supply Tube’s design allows for a direct and unobstructed path for fuel. This direct connection minimizes the chances of fuel starvation, ensuring that each injector can atomize fuel effectively into the combustion chamber. Proper atomization is key to achieving optimal air-fuel mixture, which directly influences engine performance and efficiency.

In relation to the engine control unit (ECU), the Injector Fuel Supply Tube indirectly supports the ECU’s role in managing fuel delivery. The ECU relies on consistent fuel pressure and flow to execute its commands accurately. Any inconsistency in fuel supply could lead to misfires, reduced power, or increased emissions.

Furthermore, the Injector Fuel Supply Tube interacts with the engine’s overall fuel system, including the fuel pump and filter. The fuel pump pressurizes the fuel, while the filter ensures that contaminants are removed before the fuel reaches the injectors. The tube must be in optimal condition to withstand the pressure and deliver clean fuel.

Conclusion

The Injector Fuel Supply Tube (part 3094751) plays a significant role in maintaining the integrity and performance of the fuel delivery system. Its proper function ensures that fuel is delivered consistently and efficiently to the injectors, supporting the engine’s performance and the ECU’s management of the fuel system.