English
中文简体
This compression provides additional power and efficiency to the engine, because as more air enters the combustion chamber, more fuel can be added to obtain more power. In addition to additional power, a turbocharger is sometimes referred to as a device that provides "free power" because, unlike a supercharger, it does not require the power of an engine to drive it. The hot gas and expanded gas discharged from the engine are the power of the turbocharger, so it does not consume the net power of the engine. Turbocharged engines will not be affected at high altitudes like naturally aspirated engines.
The higher the altitude that a naturally aspirated engine climbs, the more difficult it is for it to obtain oxygen due to the thinning of the atmosphere. The turbocharger solves this problem because it forces oxygen into the combustion chamber of the engine, sometimes twice the atmospheric pressure.Turbochargers can also improve the fuel efficiency of vehicles, but there are misunderstandings in terms of turbocharged vehicles and fuel efficiency.
Using a naturally aspirated engine and installing a turbocharger on it will not improve fuel efficiency. The way manufacturers use turbocharging to improve fuel efficiency is to reduce the size of the engine and then turbocharge it. Taking a 2.5L inline 4-cylinder naturally aspirated engine as an example, the displacement is reduced to 1.4L and then turbocharged. Smaller turbocharged engines still have the same performance data (or slightly better), but because of their smaller displacement, they use less fuel.
