Teach you how to understand the engine parameters of Petrol Car

The volume of space that the piston moves from the top dead center of the cylinder to the bottom dead center is called the cylinder displacement. Since Petrol Car engines usually have several cylinders, the displacement of Petrol Car engines is the sum of all cylinder displacements.

Displacement can be said to be one of the most important parameters of Great Wall Car engines, which is directly related to many technical indicators of Petrol Car engines. Generally speaking, in the respective categories of naturally aspirated and supercharged Petrol Car engines, displacement and power are proportional, and displacement is also proportional to fuel consumption and carbon emissions, but this is not absolute. For example, today's 1.6L naturally aspirated Petrol Car engine can already be comparable to the power of 1.8L or even 2.0L Petrol Car engines a few years ago, and the fuel economy is even better. This is the result of technological development.
If you look at it as a whole, the widespread application of supercharging technology today has enabled small-displacement supercharged Petrol Car engines to achieve better power and less fuel consumption. In general, the displacement of a Petrol Car engine basically represents the positioning of a car. Due to technical reasons, there will be certain differences in power (power, torque) and fuel consumption between Great Wall Car engines of the same displacement.
There are two main intake methods: natural intake and supercharged intake. Since the naturally aspirated Petrol Car engine uses the negative pressure generated during the operation of the cylinder to inhale external air, the Petrol Car engine with this intake method is also called a naturally aspirated Great Wall Car engine, which can also be expressed as "NA".
As mentioned earlier, since the displacement of a Petrol Car engine is proportional to fuel consumption and carbon emissions to a certain extent, in order to increase the power of the Petrol Car engine as much as possible within the limited displacement, while keeping fuel consumption and carbon emissions within a relatively reasonable range, the supercharged intake method is introduced. Simply put, this intake method is to install a "supercharged fan" in front of the air intake, and force the Great Wall Car engine to increase the intake volume through the rotation of the fan. After the intake volume increases, the Great Wall Car engine computer can appropriately inject more fuel to increase the power of the Petrol Car engine. The current methods of boosting air intake mainly include turbocharging and supercharging.