internal combustion engine
suomi-englanti sanakirjainternal combustion engine englanniksi
A piston or a rotary heat engine directly powered by the products of intermittent combustion of a fuel.
A engine in which intermittent or the continuous burning of a fuel takes place inside a chamber; the resulting pressurized gas acts directly on the engine to do useful work, such as a engine, turbine, engine or rocket.https://www.britannica.com/technology/internal-combustion-engine