What do the letters T and L stand for in cars?

[DelAmelia]

In cars, T and L represent turbocharged engine and naturally aspirated engine respectively. A turbocharged engine refers to an engine equipped with a turbocharger. Its working principle is to use the inertial impulse of the exhaust gas discharged from the engine to drive the turbine in the turbine chamber. The turbine then drives the coaxial impeller, which forces more air into the intake manifold through high-speed rotation, thereby improving the combustion efficiency of the engine. The working principle of a naturally aspirated engine is that it does not have a supercharger. Air simply passes through the air filter, throttle valve, and intake manifold to reach the cylinder. Gasoline is directly injected into the intake manifold through the fuel injector.