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.

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