An engine is something that produces an effect from a given input. The origin of engineering was the working of engines. There is an overlap in English between two meanings of the word "engineer": "those who operate engines" and "those who design and construct new items."
A Petrol engine is an internal combustion engine with spark-ignition designed to run on petrol and similar volatile fuels. It differs from a diesel engine in the method of mixing the fuel and air. In a diesel engine, merely the air is compressed, and the fuel is injected at the end of the compression stroke. In a petrol engine, the fuel and air are pre-mixed before compression. The pre-mixing was formerly done in a carburettor but now (except in the smallest engines) it is done by electronically-controlled fuel injection. Pre-mixing of fuel and air allows a petrol engine to run at a much higher speed than a diesel.
Applications :
Motor cars
Motorcycles
Aircraft
Motorboats
Small machines
Motor cars
Motorcycles
Aircraft
Motorboats
Small machines
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