Why are engines getting bigger and bigger?

As the "heart" of an aircraft, the performance of an aircraft engine directly determines its flight capability. In order to improve the thrust, fuel economy, and reliability of aircraft, aircraft engine manufacturers are constantly seeking technological breakthroughs, among which increasing engine size is one of the important means. A larger engine means it can accommodate more airflow, providing stronger thrust. Meanwhile, by optimizing the engine structure and airflow channels, air compression efficiency and combustion efficiency can be improved, further enhancing performance.

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As the "heart" of an aircraft, the performance of an aircraft engine directly determines its flight capability. In order to improve the thrust, fuel economy, and reliability of aircraft, aircraft engine manufacturers are constantly seeking technological breakthroughs, among which increasing engine size is one of the important means. A larger engine means it can accommodate more airflow, providing more thrust. Meanwhile, by optimizing the engine structure and airflow channels, air compression efficiency and combustion efficiency can be improved, further enhancing performance. Advanced aircraft engines use a large number of new materials and complex structures, such as high-temperature resistant alloys, composite materials, and integral blades. These materials and structures pose higher requirements for processing technology, requiring the use of more precise and efficient processing methods. Aircraft engines require extremely high machining accuracy for parts, such as blade profile accuracy, diameter and position accuracy of air film holes, etc. Precision machining technologies such as five axis linkage CNC machining, electrical discharge forming machining, etc. can meet the requirements.