The crankshaft is a rotating shaft that is located at the bottom of the engine. It is connected to the pistons by the connecting rods, and it is also connected to the flywheel. The flywheel is a heavy wheel that helps to keep the engine running smoothly.
As the crankshaft rotates, it converts the reciprocating motion of the pistons into rotary motion. This rotary motion is then used to power the wheels of the vehicle.
Here is a more detailed explanation of how the piston gets power to rotate the crankshaft:
1. The piston moves up and down in the cylinder.
2. As the piston moves up, it creates a vacuum in the cylinder. This vacuum draws air and fuel into the cylinder.
3. The spark plug ignites the air and fuel mixture, creating an explosion.
4. The explosion forces the piston down.
5. As the piston moves down, it pushes on the connecting rod.
6. The connecting rod pushes on the crankshaft, causing it to rotate.
7. The crankshaft converts the reciprocating motion of the pistons into rotary motion.
8. This rotary motion is then used to power the wheels of the vehicle.