3072940
Air Compressor Governor
Cummins®

Introduction

The Cummins 3072940 Air Compressor Governor is a component designed for use in the air brake systems of commercial trucks. It plays a role in regulating the air pressure within the system, ensuring that it remains at optimal levels for safe and efficient braking operations. This governor is integral to the functionality of the air brake system, contributing to the overall performance and safety of the vehicle ¹.

Basic Concepts of Air Compressor Governors

An air compressor governor is a device that monitors and controls the output pressure of an air compressor. Within the air brake system of a truck, it functions by sensing the air pressure and adjusting the compressor’s operation to maintain a consistent pressure level. This regulation is vital for the effective operation of the air brakes, as it ensures that there is sufficient air pressure available for braking without overloading the system ².

Purpose of the Cummins 3072940 Air Compressor Governor

The Cummins 3072940 Air Compressor Governor is specifically designed to maintain consistent air pressure levels within the truck’s air brake system. It achieves this by automatically adjusting the compressor’s operation based on the current air pressure. This ensures that the system operates efficiently, providing reliable braking performance under various conditions ³.

Key Features

The Cummins 3072940 Air Compressor Governor is characterized by its robust design and the use of high-quality materials, which contribute to its durability and performance. It features a precise pressure sensing mechanism that allows for accurate regulation of air pressure. Additionally, its design incorporates safety features that protect the system from overpressure situations, enhancing the overall safety of the vehicle’s braking system.

Benefits

The use of the Cummins 3072940 Air Compressor Governor offers several advantages. It contributes to improved efficiency in the air brake system by ensuring that the compressor operates only when necessary, reducing unnecessary wear and tear. Its reliable performance enhances the safety of the braking system, providing consistent braking power. Furthermore, the governor’s design and materials contribute to its longevity, offering a cost-effective solution for maintaining optimal air pressure in the system.

Installation and Integration

Proper installation of the Cummins 3072940 Air Compressor Governor into the truck’s air brake system is crucial for its effective operation. It should be installed according to the manufacturer’s guidelines, ensuring that all connections are secure and that the governor is correctly positioned within the system. Careful consideration should be given to the system’s layout to ensure that the governor can effectively monitor and regulate air pressure.

Troubleshooting and Maintenance

Regular maintenance and troubleshooting are important for ensuring the optimal performance and longevity of the Cummins 3072940 Air Compressor Governor. Common issues may include inaccurate pressure readings or failure to regulate pressure effectively. These can often be addressed by checking the governor’s connections, ensuring that it is correctly installed, and inspecting for any signs of wear or damage. Regular maintenance, such as cleaning and lubrication, can help prevent issues and ensure the governor continues to operate efficiently.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins has established a reputation for manufacturing reliable and high-performance components. The company’s dedication to excellence is evident in its products, including the Cummins 3072940 Air Compressor Governor, which is designed to meet the demanding requirements of commercial truck applications.

Air Compressor Governor Compatibility with Cummins Engines

The Air Compressor Governor part number 3072940, manufactured by Cummins, is designed to fit a variety of Cummins engines. This component plays a crucial role in regulating the pressure within the air compressor system, ensuring optimal performance and efficiency.

ISM CM570 and ISM CM570/870

The ISM CM570 and ISM CM570/870 engines are part of Cummins’ range of medium-duty diesel engines. These engines are known for their reliability and performance in various applications, including heavy-duty trucks and industrial machinery. The Air Compressor Governor part 3072940 is compatible with these engines, providing precise control over the air compressor’s pressure levels.

L10 Engines

The L10 engine family includes several variants, such as L10 CELECT, L10 GAS, and L10 MECHANICAL. These engines are designed for a wide range of applications, from on-highway to off-highway use. The Air Compressor Governor part 3072940 is engineered to fit these L10 engines, ensuring that the air compressor operates within the desired pressure range, enhancing the engine’s overall performance.

M11 Engines

The M11 engine series, which includes M11 CELECT, M11 CELECT PLUS, and M11 MECHANICAL, is another range of Cummins engines that benefit from the Air Compressor Governor part 3072940. These engines are widely used in medium-duty trucks and various industrial applications. The governor ensures that the air compressor maintains the correct pressure, contributing to the engine’s efficiency and longevity.

QSM11 CM570

The QSM11 CM570 engine is a part of Cummins’ lineup of high-performance diesel engines. This engine is known for its power and reliability, making it suitable for heavy-duty applications. The Air Compressor Governor part 3072940 is compatible with the QSM11 CM570, providing the necessary control over the air compressor system to ensure optimal engine performance.

Role of Part 3072940 Air Compressor Governor in Engine Systems

The Air Compressor Governor, identified by part number 3072940, is an integral component in the regulation and control of air compressor systems. Its primary function is to maintain a consistent pressure within the air compressor, ensuring efficient and reliable operation of the engine system.

Integration with Air Compressor

When integrated with an Air Compressor, the Governor modulates the compressor’s output pressure. It achieves this by adjusting the compressor’s intake valve opening and closing times based on the demand for compressed air. This dynamic adjustment helps in preventing over-pressurization, which could lead to system failures or inefficiencies.

Coordination with Engine Management Systems

In engine management systems, the Air Compressor Governor works in tandem with the Engine Control Module (ECM) to optimize fuel efficiency and engine performance. By regulating the air supply to the engine, it ensures that the air-fuel mixture remains within optimal parameters, enhancing combustion efficiency and reducing emissions.

Interaction with Other Governors

The Governor also interacts with other types of governors within the system, such as the EBM-Governor. This interaction allows for a harmonized control over various engine parameters, including speed and load, ensuring that the engine operates within its designed parameters under varying conditions.

Role in Overall System Efficiency

The efficient operation of the Air Compressor Governor is essential for the overall system efficiency. It helps in reducing wear and tear on the compressor and other connected components by ensuring that they operate within their designed pressure ranges. This not only extends the lifespan of the components but also contributes to the reliability and performance of the engine system.

Conclusion

The Cummins 3072940 Air Compressor Governor plays a significant role in the regulation and control of air compressor systems, contributing to the efficient and reliable operation of engine systems. Its integration with various components ensures that the engine operates optimally under different conditions, enhancing both performance and durability.