Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Crank Shaft rotates it moves Cylinder downward

The camshaft opens the intake valves allowing air to be drawn into the cylinder.

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Fuel is injected

Ignition occurs between 80 - 160 before Top Dead

Center (TDC).

Operation of standard Internal Combustion Engine

The engine loses some energy as the cylinder has

to work against the expanding gas.

Operation of standard Internal Combustion Engine

The reason why high compression engines require

higher Octane Fuel is because ignite fuel closer to

TDC and it requires more light end distillates to enhance combustion

Operation of standard Internal Combustion Engine

Combustion continues past TDC and expanding gases drive the cylinders

rotation

Operation of standard Internal Combustion Engine

Combustion stops when the Air Fuel Ratio

reaches about 14.7-1.

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Cams open the exhaust valve allowing exhaust to be pushed out.

Operation of standard Internal Combustion Engine

The O2 sensor measure air/fuel ratio as a function of heat generated by the catalytic action of the O2 sensor Platinum surface.

Built into the O2 sensor is a thermocouple. This

device coverts the heat generated at platinum

surface of the O2 sensor into an output voltage.

Operation of standard Internal Combustion Engine

Based upon the voltage output of the O2 sensor, engine RPM,

engine load and throttle location . The ECU will determine the

amount of Gas to inject.

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine

Operation of standard Internal Combustion Engine