What does Volkswagen TSI mean?
1 Answers
Volkswagen TSI technology (Twincharger-Stratified-Injection) refers to the twin-charging (turbo and supercharging) stratified injection technology. Here is a detailed description: 1. The principle of turbocharging is to use the inertia impact of the exhaust gas discharged by the engine to drive the turbine in the turbine chamber, which in turn drives the coaxial impeller. The impeller compresses the air delivered from the air filter pipeline, pressurizing it into the cylinder. The increased air pressure and density allow more fuel to be burned, significantly improving the engine's output power. 2. The benefit of turbocharging is "making the horse run faster while eating less." Typically, the engine power and torque increase by 20%-40% after installing a turbocharger. 3. However, behind the simple structure and outstanding performance of the exhaust turbocharger lies its drawback. Due to the inertia of the impeller, it responds sluggishly to sudden changes in throttle, resulting in a brief period of "lack of power" during rapid acceleration. 4. Additionally, the exhaust turbocharger relies on engine oil for cooling. The excessively high temperatures during operation and speeds exceeding 30,000 revolutions per minute can make the turbocharger a vulnerable component if not properly maintained or used. 5. Turbocharged engines have a power gap at both low and high speeds. To further improve engine efficiency, a supercharger can be added to increase intake pressure at low speeds.
