What Makes Up a Jet Engine?

Jet engines are marvels of engineering. A symphony of tiny, intricate parts work in tandem to make an aircraft take flight. Although it's easy to be overwhelmed by the complexity of each moving part, the basic jet engine components are relatively simple. There are five main sections of an engine: the air inlet, the compressor, the combustor, the turbine, and the exhaust. This blog will provide some basic information on each of these.

The air inlet, or fan, is the frontmost part of the engine. The large titanium blades spin, intaking vast quantities of air. Part of the air flows into the engine core where it plays a vital role in combustion. The other part bypasses the core , helping to quiet the engine while contributing to the thrust.

The next component is the compressor. Sitting just behind the air inlet, the compressor is the first section of the engine’s core. It is tasked with taking the air from the inlet and compressing it, thereby substantially increasing the air’s heat and pressure. From there, the compressed air is led into the combustion chamber.

The combustor, or combustion chamber, is the heart of the engine. This chamber is where the energized air from the compressor is mixed with fuel and ignited. Fuel from up to twenty nozzles is cast into the airstream where the compound catches fire, producing hot expanding gases. Because the combustor can reach temperatures in excess of 2500 degrees, it is often made from heat-resistant material like ceramic.

The turbine consists of sharp discs that spin as hot gases leave the combustor. The function of the turbine blades is to extract energy from these gases. The turbine is also commonly connected to the air inlet via a shaft so their blades can spin simultaneously.

The final component of jet engines, the exhaust, is the component that creates thrust. As hot gases leave the exhaust through a nozzle and combine with the atmospheric pressure, velocity increases. At this point, the air meets up with the bypassed air where the combination of hot and cool air produces thrust.

At ASAP Aviation Stock, owned and operated by ASAP Semiconductor, we can help you find all the unique parts for various jet engine components as well as parts for the civil aviation and defense industries. We’re always available and ready to help you find all the parts and equipment you need, 24/7-365. For a quick and competitive quote, email us at sales@asapaviationstock.com or call us at 1-763-401-8616.



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December 16, 2020

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