Four cylinders can be placed in a line or a V shape in an internal combustion engine of this sort. For the purpose of converting fuel into mechanical energy, each cylinder features a piston that oscillates up and down inside the cylinder. An description of a 4-cylinder internal combustion engine’s operation is provided below:
Intake stroke: The piston in each cylinder depresses during the intake stroke, allowing fuel and air to enter the engine through the open intake valve. Depending on the type of engine, either a fuel injector or a carburetor injects the fuel into the cylinder.
Compression stroke: The air-fuel combination inside the cylinder is compressed during the compression stroke, which occurs after the intake valve closes. As a result, the mixture’s pressure and temperature are raised, increasing its combustibility.
Power Stroke: A spark plug ignites the compressed air-fuel mixture in each cylinder at the peak of the compression stroke, resulting in a quick expansion of gases. This exerts downward pressure on the piston with force, which is transmitted to the crankshaft by the connecting rod. The equipment or vehicle is propelled downhill by the energy it generates.
Exhaust Stroke:
Following the power stroke, the piston rises once more, forcing the burned gases through the open exhaust valve and out of the cylinder. Each cylinder now completes a full cycle of operation.
Each cylinder fires at a different time during this procedure, which is repeated continuously as the engine runs in order to maintain a smooth and constant power output. Depending on the type of engine, either a distributor or an electronic control unit (ECU) manages the timing of the firing. A cooling system is utilized to remove the heat produced by the combustion process, and the engine is typically lubricated with oil to reduce friction between the moving parts. In general, a 4-cylinder internal combustion engine is a dependable and effective power source that is frequently utilized in many different applications, such as vehicles, trucks, and small aircraft.