We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Jet Compressor?

By Paul Scott
Updated May 17, 2024
Our promise to you
About Mechanics is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At About Mechanics, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A jet compressor is the core mechanism of a jet engine that compresses incoming airflow for the combustion phase of the engine's operation. Jet engines typically consist of compressor and turbine elements and, in the case of turbofan engines, an additional first stage fan element. The compressor supplies high pressure air to the combustion chambers where air and fuel are burnt. The resultant high energy gas flow turns the turbine which supplies the power to operate the compressor, thus sustaining the operational cycle. The jet compressor normally consists of alternating sets of static and rotating radial blades which facilitate the compression of intake air.

There are two basic types of jet engines: turbojet and turbofan. Although they differ in several fundamental ways, their operating principles remain the same and both utilize internal jet compressor elements. In modern high bypass turbofan engines, the compressor is the second stage of the engine and is preceded by a large bypass fan. The air entering the engine is accelerated by the bypass fan and directed into the compressor which typically consists of two parts — low and a high pressure stages. As the air passes through these two stages, it is progressively compressed to extremely high pressures and forced into the engines combustion chambers.

In the combustion chambers, the compressed air is mixed with jet fuel and ignited. The resultant blast of high energy gas is directed through a set of turbines, again a low and high pressure stage, which turn and provide the rotational energy needed to turn the compressors. This cycle is maintained as long as fuel is supplied to the engine. In older turbojet engines, there is no bypass fan; the jet compressor represents the first stage of the engine. The rest of the process remains the same though. The high bypass engines are, however, far more efficient and quiet.

The jet compressor is little more than a series of fans which progressively increase the pressure of the air passing through them. These fans are typically made up of alternating series of static and rotating blades. This arrangement provides impetus for the air and an alternating series of obstructions which compresses the air. The rotational speeds involved in most jet compressor elements are extremely high, and the fan discs are engineered to be finely balanced and very robust to withstand the stresses involved. A compressor disc failure during operation is usually a catastrophic event with fractured discs often exiting the engine and even completely penetrating the aircraft's fuselage.

About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.