Parts of a Car Engine Diagram

Introduction

A car engine is a complex machine that converts the chemical energy in gasoline into mechanical energy that powers the car. The engine is made up of many different parts, each of which plays a vital role in the engine’s operation.

The following diagram shows the major parts of a car engine:

Major Parts of a Car Engine

Cylinder Block

The cylinder block is the main structural component of the engine. It contains the cylinders, which are the chambers in which the pistons move up and down. The cylinder block also contains the coolant passages, which circulate coolant around the engine to keep it cool.

Cylinder Head

The cylinder head is attached to the top of the cylinder block. It contains the valves, which control the flow of air and fuel into and out of the cylinders. The cylinder head also contains the spark plugs, which ignite the air-fuel mixture in the cylinders.

Pistons

The pistons are cylindrical-shaped components that move up and down within the cylinders. The pistons are connected to the crankshaft by connecting rods, which convert the up-and-down motion of the pistons into rotary motion.

Crankshaft

The crankshaft is a rotating shaft that is connected to the pistons by connecting rods. The crankshaft converts the up-and-down motion of the pistons into rotary motion, which is then used to power the car’s wheels.

Camshaft

The camshaft is a shaft that is located in the cylinder head. The camshaft has lobes on it that open and close the valves in the cylinder head. The camshaft is driven by the crankshaft, and it controls the timing of the valves.

Oil Pump

The oil pump is a pump that circulates oil throughout the engine. The oil lubricates the moving parts of the engine and helps to keep it cool.

Water Pump

The water pump is a pump that circulates coolant throughout the engine. The coolant helps to keep the engine cool and prevents it from overheating.

Fuel Injector

The fuel injector is a device that sprays fuel into the cylinders. The fuel injector is controlled by the engine’s computer, which determines the amount of fuel that is injected into each cylinder.

Spark Plug

The spark plug is a device that creates a spark that ignites the air-fuel mixture in the cylinders. The spark plug is connected to the ignition coil, which provides the voltage that is needed to create the spark.

Conclusion

The car engine is a complex machine that is made up of many different parts. Each of these parts plays a vital role in the engine’s operation. By understanding the major parts of a car engine, you can better understand how your car works.