How a Car Engine Works Step by Step
1. Intake Stroke
The intake stroke is the first step in the four-stroke cycle of a car engine. During this stroke, the intake valve opens and the piston moves down the cylinder, drawing air and fuel into the cylinder.
2. Compression Stroke
The compression stroke is the second step in the four-stroke cycle. During this stroke, the intake valve closes and the piston moves up the cylinder, compressing the air and fuel mixture.
3. Power Stroke
The power stroke is the third step in the four-stroke cycle. During this stroke, the spark plug ignites the air and fuel mixture, causing it to burn. This burning creates pressure that drives the piston down the cylinder, generating power.
4. Exhaust Stroke
The exhaust stroke is the fourth and final step in the four-stroke cycle. During this stroke, the exhaust valve opens and the piston moves up the cylinder, expelling the exhaust gases from the cylinder.
The Four-Stroke Cycle
The four-stroke cycle is the basic operating principle of a car engine. This cycle is repeated over and over again to keep the engine running.
The Parts of a Car Engine
The main parts of a car engine include:
* **Cylinder:** The cylinder is a metal tube in which the piston moves up and down.
* **Piston:** The piston is a metal disk that moves up and down the cylinder, compressing the air and fuel mixture and generating power.
* **Valves:** The valves are metal plates that open and close to control the flow of air and fuel into and out of the cylinder.
* **Spark plug:** The spark plug is a device that ignites the air and fuel mixture.
* **Crankshaft:** The crankshaft is a metal shaft that converts the up-and-down motion of the piston into rotary motion.
How a Car Engine Works Step by Step PDF
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