How Does A Diesel Driven Air Compressor Work?

Nov. 27, 2024

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How Does A Diesel Driven Air Compressor Work?

Diesel driven air compressors can be complex systems, with numerous components, but every air compressor has two core components:

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Air end
Diesel engine

The air end is the &#;heart&#; of the air compressor. It is the part of the air compressor that compresses the air, drawing air from the atmosphere and then forcing it into a much smaller space. In rotary screw air compressors, the air end is comprised of the rotors and rotor housing. In reciprocating air compressors, the air end contains the pistons.

But the air end needs a power source to operate, which is where the diesel engine comes in. A diesel driven engine converts diesel fuel into motion, forcing the air end to move and the system to compress air.

VMAC&#;s diesel driven air compressor looks like this:

From the outside, the system seems sleek and simple. It&#;s essentially a black box with some venting and an oil filter sticking out. But on the inside, there is a lot more going on:

By taking this system apart and looking at the components individually, we can get an even better understanding of what is happening inside the diesel driven air compressor.

Each of these components plays an important role within the diesel driven air compressor and together, they allow the system to compress air. From left to right, the identified components are:

Component Purpose Service Panel Protects air compressor system from elements and contamination; allows access for servicing. Engine Radiator Cools heat generated by the system Battery Provides power to the diesel engine Control Panel Controls the system operation and stored settings Fuel Filter Filters contaminants in the diesel fuel Kubota Diesel D902 Engine Rotates the air end and transfers energy from the battery to the air compressor system Engine & Compressor Air Filter Filters contaminants in the air VMAC Air End Compresses air Coalescing Filter Removes water and oil aerosols from compressed air Air/Oil Separator Tank Removes oil from compressed air, ensuring the oil recirculates within the system Compressor Oil Cooler Maintains optimal compressor oil temperatures

How Does A Small Diesel Engine Work?

Diesel engines use combustion to ignite fuel and generate energy. Hot, compressed air and diesel fuel are mixed in a combustion chamber, and the reaction between the air and fuel causes an explosion.

Here is a breakdown of what happens when you turn on a small diesel engine:

The Engine Heats Up

When you turn on the engine, the battery powers the pistons in the cylinder up and down. The pistons push the air through the cylinders, into a combustion chamber where it is compressed. Compression forces the molecules in the air to move faster, which naturally heats the air. Fuel is then injected into the hot, compressed air, and ignites. This process is repeated continuously until the engine is powered off.

If the temperature of the engine is too cold, a glow plug may be used to help the air meet the required temperature to ignite. Glow plugs heat the air within the cylinder during the first few seconds the engine is turned on. After the fuel first ignites, the glow plug turns off.

Fuel Is Pumped To The Cylinders

While the above process occurs, additional fuel is delivered by the system. The fuel is pumped from the fuel tank, passing through filters, a higher pressurization pump, and a delivery tube (called a fuel rail) along the way. The pressurized fuel then reaches the fuel injectors, which deliver fuel to the cylinders.

(A Rail Fuel Injection System, Source: Dummies.com)

Air Is Pumped To The Cylinders

During the ignition process, air is also pumped to the cylinders. On some engines, this air passes through a simple air cleaner en route to the cylinders. In others, a turbocharger is used to increase the amount of compressed air in the cylinders, resulting in better fuel economy and power. In either scenario, the air travels through an intake valve and is delivered to the cylinders.

Want to learn more about air compressors? Check out our Guide To Rotary Screw Air Compressors!

What Are Diesel Air Compressors Used For

1. What is Diesel Air Compressor?

Generally, there&#;re two main air compressor categories: positive displacement and dynamic.

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Under these two umbrella categories, there can be many types of air compressors based on the working theory, the main structure, or even the types of motor or engine of the air compressor.

The positive displacement air compressor is the most commonly used compressor and it can be driven either by diesel engine or electric motors. Nowadays more and more leading air compressors manufacturers take the diesel air compressor as one of their main products.

The Diesel Driven Air Compressor is a complex system with numerous components. However, in summary, there&#;re two core components: Air End and Diesel Engine. Surely the air end is the heart of the air compressor for it&#;s the part that draws air from the atmosphere, forces it into a much smaller space, and compresses it. But this air needs a power source to operate, which is where the diesel engine comes in: the diesel engine converts diesel fuel into motion, forcing the air end to move and the system to compress air.

2. Types of Diesel Air Compressor

Nowadays there&#;s a great variety of diesel air compressors made by various manufacturers of standard & custom diesel compressors. Generally, there are two main types of Diesel Air Compressor:

Diesel Portable Air Compressor: It&#;s equipped with a lifting ring for safe and convenient lifting and transportation. Thanks to this design, this diesel engine air compressor is easy to move and even can move flexibly in bad terrain conditions.

Diesel Stationary Air Compressor: Compared with Diesel Portable Air Compressor, the Diesel Stationary Air Compressor is larger in volume and occupies more space. This kind of air compressor shows more stability.

3. Applications of Diesel Air Compressor

All the air compressors are mainly used as power equipment in which the pressurized air is created as potential energy. Compared with other energy-generating equipment, the air compressor is quieter, lighter, and with less chance of a breakdown.

In particular, the Diesel Portable Air Compressor, which is powered by a diesel engine, can be used in any location or environment: it&#;s commonly used on construction sites, in manufacturing plants, and even for handheld screwdrivers as an energy source.

4. How to Choose Diesel Air Compressor?

As we mentioned at the beginning, the air compressors can be classified into three categories according to the type of motor inside: the electric air compressor is a very common and quiet type, but it&#;s less powerful compared with fossil-fuel driven compressors; the petrol engine air compressor might be lighter, quieter and less expansive type, but it may not output similar torque as a diesel air compressor does; the diesel air compressor is noisier compared with other two types, but it&#;s movable and more powerful.

Among so many diesel portable air compressor manufacturers & suppliers, how to choose the most reliable manufacturer of standard & custom diesel compressors? The tips are the following:

PSI Rating: The PSI is is a common unit of pressure used in many different pressure measuring applications. The higher the rating, the more air the tank has. In different applications the requirements for the pressure are different. Thus, the PSI Rating is an important reference parameter of the industrial portable air compressor.

The experience and reputation of the manufacturer: It&#;s critical to choose an established and reputable Diesel Portable Air Compressor manufacturer. With years of experience, they will offer you the right product based on your needs, budget, and application.

We, Sollant, as a leading air compressors manufacturer in China, always offer you industrial portable air compressors of high quality.

For more details: https://sollantcompressor.com/product-category/air-compressors/diesel-air-compressor/

Rotary Screw Air Compressor: A Complete Guide

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