Car Engine Parts Diagram

Engine Block

The engine block is the main structural component of the engine. It houses the cylinders, crankshaft, and other vital components.

Cylinder Head

The cylinder head is located at the top of the engine block and seals the combustion chamber. It contains the valves, spark plugs, and other components that control the flow of air and fuel into and out of the cylinders.

Pistons

The pistons are cylindrical components that move up and down within the cylinders. They are connected to the crankshaft by connecting rods.

Crankshaft

The crankshaft is a rotating shaft that converts the reciprocating motion of the pistons into rotational motion. It is connected to the flywheel.

Flywheel

The flywheel is a heavy wheel that is attached to the crankshaft. It helps to smooth out the engine’s operation and provides inertia.

Camshaft

The camshaft is a shaft that controls the opening and closing of the valves. It is driven by the crankshaft.

Valves

The valves are located in the cylinder head and control the flow of air and fuel into and out of the cylinders.

Spark Plugs

The spark plugs are located in the cylinder head and provide the spark that ignites the air-fuel mixture.

Fuel Injectors

The fuel injectors are located in the intake manifold and spray fuel into the cylinders.

Intake Manifold

The intake manifold is a passage that delivers air and fuel to the cylinders.

Exhaust Manifold

The exhaust manifold is a passage that carries exhaust gases away from the cylinders.

Turbocharger

The turbocharger is a device that uses exhaust gases to spin a turbine, which in turn compresses air and forces it into the cylinders. This increases the engine’s power output.

Supercharger

The supercharger is a device that uses a belt-driven impeller to compress air and force it into the cylinders. This also increases the engine’s power output.

EGR Valve

The EGR valve is a valve that recirculates exhaust gases back into the intake manifold. This helps to reduce emissions.

Knock Sensor

The knock sensor is a sensor that detects engine knock and adjusts the engine’s timing to prevent it.

Oxygen Sensor

The oxygen sensor is a sensor that measures the amount of oxygen in the exhaust gases. This information is used to adjust the air-fuel mixture.

Coolant Temperature Sensor

The coolant temperature sensor is a sensor that measures the temperature of the engine coolant. This information is used to adjust the engine’s cooling system.

Intake Air Temperature Sensor

The intake air temperature sensor is a sensor that measures the temperature of the air entering the engine. This information is used to adjust the air-fuel mixture.

Mass Airflow Sensor

The mass airflow sensor is a sensor that measures the amount of air flowing into the engine. This information is used to adjust the air-fuel mixture.

Throttle Position Sensor

The throttle position sensor is a sensor that measures the position of the throttle valve. This information is used to adjust the air-fuel mixture.

Crankshaft Position Sensor

The crankshaft position sensor is a sensor that measures the position of the crankshaft. This information is used to control the timing of the ignition and fuel injection systems.

Camshaft Position Sensor

The camshaft position sensor is a sensor that measures the position of the camshaft. This information is used to control the timing of the valve opening and closing.