What are Different Types of Engine? Mechanical Engg Automobile Engg Machines What are Different Types of Engine? with (Images and PDF) By Sazid Asad Ahmad - March 21, 2021 null In this article you’ll learn, what are different types of engines used in the automotive industries. And also you can download the PDF file of this article at the end of it. What is an Engine? An engine is a machine designed to convert one form of energy into mechanical energy. Heat engines like internal combustion engines burn their fuel inside the engine cylinder. On the other side, external combustion engines are those heat engines that burn their fuel outside of the engine cylinder. These are steam engines. The energy developed during the combustion of fuel is transmitted to steam which acts on the piston inside the cylinder. In internal combustion engines , the chemical energy stored in their operation. The heat energy is conve...