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Engine Development History
- Aug 28, 2018 -

Looking back at the history of engine generation and development, it has experienced three stages of development: steam engines, external combustion engines and internal combustion engines.

External combustion engine

The external combustion engine, that is to say its fuel is burned outside the engine, was invented by R. Sterling of Scotland in 1816, so it is also called the Stirling engine. The engine converts the heat energy generated by this combustion into kinetic energy. The steam-modified steam engine is a typical external combustion engine. When a large amount of coal is burned to generate heat to heat the water into a large amount of water vapor, high pressure is generated. The high pressure pushes the mechanical work, thus completing the transformation of thermal energy into kinetic energy.

internal combustion engine

Understand what is an external combustion engine, and know what an internal combustion engine is.

The biggest difference between this type of engine and the external combustion engine is that its fuel burns inside. There are many types of internal combustion engines, and common gasoline engines and diesel engines are typical internal combustion engines. Unusual rocket engines and jet engines assembled on aircraft are also internal combustion engines. However, due to the different power output methods, there are huge differences between the first two and the latter two. In general, most of the use on the ground is the former, and the latter is mostly used in the air. Of course, some automakers have used jet engines for the purpose of creating a new record for the world's car speeds, but this is always a very special case and there is no applicability for mass production.