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Video: Variable Geometry Turbochargers

Turbochargers comprise a forced air induction system that increases the amount of air available for combustion in the cylinders by 50% or more. Because the power output of an internal combustion engine is proportional to the amount of fuel it can burn, forcing more air into the engine means more fuel can be added to the cylinder, which results in a more powerful combustion process.

One form of turbocharging, Variable Geometry Turbocharger (VGT) technology, is equipped with movable vanes. Each of the vane angles is able to change throughout the engine's revolutions per minute (rpm) range to optimize the overall efficiency of the turbines.

eTV is interested in the VGT technology because it can help Canadians achieve better fuel economy and fuel efficiency over a range of engine speeds, even at low speeds. As a result, VGT technology can help reduce greenhouse gas emissions.

Video snapshot - Variable Geometry Turbochargers

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Date modified:
2010-06-29