3.1.3 Engine
This is the heart of the whole car. The energy of the combusted fuel is converted into rotation (mechanical work) inside the engine. Then it is transmitted to the wheels via the transmission, and the wheels, in turn, by pushing off the road, give motion to the entire car. Internal combustion engines (ICEs) are mainly used in cars. They are distinguished according to the kind of fuel, which is used for obtaining the sacred energy conversion, namely: diesel, gasoline or gas. Also, an internal combustion engine can be installed on a car along with an electric motor. In this case the car is called a vehicle with a hybrid system. The internal combustion engine and the electric motor on such vehicles work in turn or simultaneously, depending on the driving mode. It can also happen that the motor is installed exclusively, powered by rechargeable batteries.
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