Engine or motor
An engine or motor is a machine that converts certain types of energy into kinetic energy. Usually this it concerns a circular movement, but linear movements are also possible.
Engines are distinguished according to the form of energy supplied. There are:
- Electric motors that use electro-magnetic energy.
- Heat engines are based on thermodynamic laws. In these engines, the aforementioned conversion takes place as a result of temperature differences. These can take place externally (e.g. the Stirling engine) or be caused by internal combustion. The combustion, in turn, is then a conversion of chemical energy into heat energy.
- Flow energy can be used to power a wheel or a turbine.
The 'De Cruquius' pumping station, which was used to drain the Haarlemmermeer in The Netherlands, has a piston diameter of 3.66 meters, making it the world's largest steam engine.