engine

Engine is a machine that can convert other forms of energy into mechanical energy, including internal combustion engine (reciprocating plug engine), external combustion engine (Stirling engine, steam engine, etc.), jet engine, electric motor, etc. For example, the internal combustion engine usually converts chemical energy into mechanical energy. The engine is not only applicable to the power generation device, but also refers to the whole machine including the power device (such as gasoline engine and aviation engine). The engine was first born in Britain, so the concept of engine also comes from English. Its original meaning refers to the "mechanical device that generates power".