Accelerator

How does an  accelerator of a motor vehicle work?

Actually 2 types of fuel supplies work in a motor vehicle. 1 uses carburettor in petrol engine & the other is fuel injection pump in diesel engines.

When we press the  accelerator , a small plate like opening allows the carburettor to draw more air  from  atmosphere ,and also this action draws more fuel from the fuel tank by venturi action .

Finally this will give more air fuel mixture to the engine input . so due to higher combustion inside the engine the vehicle gets more power and goes in a faster manner.