process description about the car's engine?

1-    My process description will be about car’s engine process.

2-    Car’s engine process are:

a-    Intake stroke.

b-    Compression stroke.

c-    Power stroke.

d-    Exhaust stroke.

      3- car’s engine is a mechanical device. Without the engine the car will not work so it is important device despite of the development of the car and that is related to mechanical engineering.

ALSO, i have attached a sample and the tasking sheet.