The Function of a Car Engine

by Annabelle “Eileen” Roberts

Introduction  

     A car engine works by burning fuel in a confined space (a process called "internal combustion") to create a force that pushes a set of pistons up and down. This up-and-down motion is then converted into the rotational movement that turns the wheels of the car (Google.com "cars for dummies"). Cars are used for many different things, like towing and transportation. There are also many different types of cars, such as: trucks, buses, small vehicles, and go-carts. Planes, drones, and lawn mowers are some of the different types of vehicles that use a similar mechanical mechanism to cars. These simple yet effective machines can help us with daily things as long as we treat them correctly.

Engine Anatomy

     These parts work in synchrony to achieve this process (internal combustion).  The engine block (cylinder block): The main structure that houses the cylinders and provides a foundation for the other components. Cylinder Head: Sits atop the engine block, containing the valves and the spark plugs, and sealing the top of the cylinders. Piston: A cylindrical component that moves up and down inside the cylinder in response to the combustion. Crankshaft: This part converts to vertical (up and down) motion of the pistons into a usable rotational motion that is sent to wheels. Camshaft: Controls the opening and closing of the intake and exhaust valves in coordination with the piston movements. It is linked to the crankshaft by a timing belt or chain. Spark plug: Provides a crucial spark that ignites the air-fuel mixture during the power stroke.

Supporting Systems

        The engine also relies on critical supporting systems, including the following; Cooling system: circulates a mixture of antifreeze and water to manage waste heat generated by combustion, preventing overheating. Lubrication system: uses oil to reduce friction between moving parts and prevent damage. Fuel systems: Delivers to correct mixture of air and fuel to the combustion chambers. All these simple but effective things help ensure safety and reduce overheating risks. 

Conclusion

       In conclusion, a car engine functions as the heart of a vehicle, efficiently transforming the chemical energy stored in the fuel into mechanical energy through a continuous, synchronized series of small, controlled explosions. This intricate dance of pistons, valves, and crankshaft, governed by the four-stroke cycle (intake, compression, power, and exhaust), provides the rotational force necessary to turn the wheels and move the car.