Turbo fuel stratified injection
Encyclopedia
Turbo fuel stratified injection (TFSI) denotes a type of forced-aspiration ("turbo
") engine where the fuel is pressure-injected straight into the combustion chamber
. FSI (VAG) direct injection technology increases the torque and power of spark-ignition
engines, makes them as much as 15 percent more economical and reduces exhaust emissions.
Turbocharger
A turbocharger, or turbo , from the Greek "τύρβη" is a centrifugal compressor powered by a turbine that is driven by an engine's exhaust gases. Its benefit lies with the compressor increasing the mass of air entering the engine , thereby resulting in greater performance...
") engine where the fuel is pressure-injected straight into the combustion chamber
Combustion chamber
A combustion chamber is the part of an engine in which fuel is burned.-Internal combustion engine:The hot gases produced by the combustion occupy a far greater volume than the original fuel, thus creating an increase in pressure within the limited volume of the chamber...
. FSI (VAG) direct injection technology increases the torque and power of spark-ignition
Spark-ignition
The term spark-ignition engine refers to internal combustion engines, usually petrol engines, where the combustion process of the air-fuel mixture is ignited by a spark from a spark plug...
engines, makes them as much as 15 percent more economical and reduces exhaust emissions.
Advantages
Some advantages of TFSI engines:- Injection pressure can be regulated
- Better fuel distribution and better fuel charge inside the combustion chamber
- During the injection process the fuel gets evaporated, cooling the cylinder chamber
- Higher compression ratios, which translates into more power
- Increased fuel combustion efficiency
- Higher power during pick-up of vehicle.