What does tfsi mean?

[VanJoanna]

tfsi stands for Fuel Stratified Injection technology, which is applied in turbocharged engines. A turbocharger is an air compressor that serves to enhance the engine's output power. Without altering the engine's cylinder capacity, it achieves this by solely increasing the compression ratio of the air entering the cylinders. The working principle of a turbocharger is as follows: it utilizes the exhaust gases expelled from the engine's exhaust outlet as the driving force to propel the turbine wheel inside the turbine housing. Simultaneously, the turbine wheel is directly connected to the compressor wheel in the compressor housing. One end of the compressor housing is linked to the air filter, while the other end compresses the air drawn in from the air filter into the engine's cylinders, thereby increasing the amount of air inside the engine.