4941631
Heat Shield
Cummins®

Introduction

The Fuel Injector Supply Tube 4941631 is a component designed by Cummins to facilitate the efficient operation of heavy-duty trucks. Its primary role is to ensure the proper distribution of fuel from the tank to the injectors, thereby contributing to the overall performance and efficiency of the engine.

Basic Concepts of Fuel Injector Supply Tubes

A Fuel Injector Supply Tube is a vital part of the fuel system, responsible for transporting fuel under pressure from the fuel tank to the injectors. This component plays a role in maintaining consistent fuel pressure and delivery, which are important for the engine’s combustion process and overall performance ¹.

Operation of the Fuel Injector Supply Tube

The operation of the Fuel Injector Supply Tube involves the precise flow of fuel from the tank to the injectors. This process is facilitated by the tube’s design, which allows for the maintenance of fuel pressure and ensures that the injectors receive a steady supply of fuel. The tube’s role in this system is to provide a reliable pathway for fuel, contributing to the engine’s efficiency and performance ².

Purpose of the 4941631 Fuel Injector Supply Tube

This Cummins part is specifically engineered for Cummins engines, where it plays a role in ensuring proper fuel distribution. This component is important for maintaining the engine’s performance by providing a consistent supply of fuel to the injectors, which is necessary for efficient combustion and power delivery.

Key Features of the 4941631 Fuel Injector Supply Tube

The 4941631 is characterized by its robust design and construction. It is made from high-quality materials that offer durability and resistance to the pressures and temperatures within the fuel system. Its unique characteristics, such as precise engineering and material selection, enhance its performance and reliability in heavy-duty applications ³.

Benefits of Using the 4941631 Fuel Injector Supply Tube

Utilizing this part offers several advantages, including improved fuel efficiency, enhanced engine performance, and increased reliability. These benefits are attributed to the tube’s ability to maintain consistent fuel pressure and delivery, which are important for the efficient operation of Cummins engines in demanding conditions.

Troubleshooting Common Issues with Fuel Injector Supply Tubes

Common issues with Fuel Injector Supply Tubes, such as leaks, blockages, and pressure inconsistencies, can be identified through regular inspection and diagnostic procedures. Addressing these problems promptly is important for maintaining the fuel system’s integrity and ensuring the engine’s optimal performance.

Maintenance Tips for Fuel Injector Supply Tubes

To ensure the longevity and optimal performance of the 4941631, regular maintenance practices are recommended. These include periodic inspection for signs of wear or damage, cleaning to remove any contaminants, and replacement when necessary. Following these maintenance tips helps in preserving the tube’s functionality and the engine’s efficiency.

Cummins: A Brief Overview

Cummins Inc. is a leading manufacturer in the automotive industry, known for its commitment to quality and innovation in engine manufacturing. With a rich history and a diverse product range, Cummins has established a reputation for producing reliable and high-performance engines. The company’s dedication to excellence is reflected in its products, including the 4941631, which embodies Cummins’ standards of quality and engineering prowess.

Cummins Fuel Injector Supply Tube (Part 4941631) Compatibility

The Cummins Fuel Injector Supply Tube, identified by the part number 4941631, is a component in the fuel delivery system of various Cummins engines. This part ensures that fuel is efficiently and accurately delivered to the fuel injectors, which is important for optimal engine performance and fuel efficiency.

K50 Series

The K50 series engines, known for their robust design and reliability, are among the engines that utilize the Cummins Fuel Injector Supply Tube (4941631). This part is integral to the fuel system architecture of these engines, facilitating the precise transfer of fuel from the fuel pump to the injectors. The design and engineering of the K50 series engines ensure that the supply tube operates under high pressure and temperature conditions, maintaining its integrity and functionality over time.

Group Compatibility

The Cummins Fuel Injector Supply Tube (4941631) is not limited to the K50 series alone. It is also compatible with other Cummins engine groups that share similar fuel system configurations. This part’s compatibility extends to engines that require a high-pressure fuel delivery system, ensuring that the fuel injectors receive the necessary fuel supply to operate efficiently. The design of the supply tube is such that it can withstand the rigors of continuous operation, providing a reliable connection between the fuel pump and the injectors.

Role of Part 4941631 Fuel Injector Supply Tube in Engine Systems

This part is a component in the fuel delivery system of an engine. It is responsible for transporting fuel from the fuel rail to the fuel injectors. This tube ensures a consistent and reliable supply of fuel, which is necessary for the injectors to atomize the fuel properly and deliver it into the combustion chamber.

Integration with the Fuel Rail

The Fuel Injector Supply Tube connects directly to the fuel rail, which is a manifold that distributes fuel to each injector. The tube’s precise fit and sealing properties are vital for maintaining fuel pressure and preventing leaks. The consistent fuel pressure is important for the injectors to operate efficiently, ensuring optimal fuel atomization and combustion.

Interaction with Fuel Injectors

Each fuel injector is supplied with fuel through the Fuel Injector Supply Tube. The tube’s design allows for smooth fuel flow, reducing the likelihood of fuel starvation or inconsistent fuel delivery. This consistent supply is important for the injectors to perform their function accurately, which directly impacts engine performance and fuel efficiency.

Heat Shield Compatibility

In high-temperature environments, the Fuel Injector Supply Tube is often equipped with a heat shield. This shield protects the tube from excessive heat, which can cause fuel to vaporize prematurely or degrade the tube’s material. The heat shield ensures that the fuel remains in liquid form as it travels through the tube, maintaining the integrity of the fuel delivery system.

Thermal Management

The heat shield not only protects the Fuel Injector Supply Tube but also plays a role in the overall thermal management of the engine. By reducing the heat transfer to the fuel, the shield helps in maintaining the fuel’s viscosity and pressure, which are important for the injectors’ performance. This thermal management is particularly important in engines that operate under high loads or in extreme conditions.

Summary of Component Interaction

In summary, the Fuel Injector Supply Tube works in conjunction with the fuel rail and fuel injectors to ensure a steady and reliable fuel supply. The integration of a heat shield enhances the tube’s performance by protecting it from thermal degradation, thereby contributing to the overall efficiency and reliability of the fuel delivery system.

Conclusion

The Fuel Injector Supply Tube 4941631 by Cummins is a critical component in the fuel delivery system of heavy-duty engines. Its role in maintaining consistent fuel pressure and delivery is essential for efficient engine operation. Regular maintenance and prompt troubleshooting of common issues are recommended to ensure the longevity and optimal performance of this part. Cummins’ commitment to quality and innovation is evident in the design and engineering of this component, which contributes to the overall performance and efficiency of Cummins engines.