What does 1.2T mean in cars?
1 Answers
1.2T refers to a turbocharged engine with a displacement of 1.2 liters. The preceding number indicates the engine's displacement—1.2 means 1.2 liters—while the 'T' stands for turbocharging, indicating that the engine employs forced induction technology, typically turbocharging for small-displacement engines. More details about turbocharged engines are as follows: 1. A turbocharged engine relies on a turbocharger to increase the engine's air intake. The turbocharger (Turbo) is essentially an air compressor. 2. A turbocharged engine uses exhaust gases expelled by the engine to drive the turbine in the turbine housing (located in the exhaust passage). The turbine, in turn, drives the coaxial impeller in the intake passage, which compresses fresh air delivered through the air filter and sends it into the cylinders. As the engine speed increases, the exhaust gas flow rate and turbine speed also rise, enhancing the compression of air, thereby increasing the engine's air intake and consequently boosting its output power. 3. The greatest advantage of a turbocharged engine is that it can significantly increase power and torque without enlarging the engine's displacement. After installing a turbocharger, an engine's maximum output power can increase by approximately 40% or more compared to a non-turbocharged version.
