What does Audi A6 30FSI mean?
1 Answers
Audi A6 30FSI means: 30 refers to the g-value, which represents the g-force generated during vehicle acceleration; FSI stands for Fuel Stratified Injection technology, and Audi vehicles with the FSI badge are equipped with naturally aspirated engines. Below is an introduction to FSI: 1. The significance of FSI technology: The most notable advantage of gasoline direct injection technology is that it provides greater output power and torque while improving fuel economy and reducing emissions. Direct-injection gasoline engines employ technology similar to direct-injection turbo diesel engines, allowing fuel to be injected directly into the combustion chamber with precision control down to the millisecond. The principle of direct-injection gasoline engines features two different fuel injection modes: stratified injection and homogeneous injection. 2. The technical principle of FSI: The FSI engine utilizes a high-pressure pump to deliver gasoline through a split rail (common rail) to electromagnetically controlled high-pressure fuel injectors. Its characteristic is that variable swirl is already generated in the intake tract, forming the optimal swirl pattern for the intake airflow entering the combustion chamber, which is then propelled in a stratified filling manner to concentrate the air-fuel mixture around the spark plug located at the center of the combustion chamber.
