Working of a Car

When a driver turns a key in the ignition:

● The car battery powers up sending

● Power to the starter motor, which

● Turns the crankshaft, which

● Gets the pistons moving

● With the pistons moving the engine fires up and ticks over

● A fan draws air into the engine via an air filter

● The air filter removes dirt and grit from the air

● The cleaned air is drawn into a chamber where fuel (petrol or diesel) is added

● This fuel-air mix (a vaporised gas) is stored in the chamber

● The driver presses the accelerator pedal

● The throttle valve is opened

● The gas-air mix passes through an intake manifold and is distributed, through intake valves, into the cylinders. The camshaft controls the opening and closing of the valves.

● The distributor makes the spark plugs spark, which ignites the fuel-air mix. The resulting explosion forces a piston to move down which in turn causes the crankshaft to rotate.