Car engines: what does V12 mean?
Generally speaking, the displacement of 1 liters following the 3 cylinder engine used, such as 0.8 liters and Folel Alto car. Displacement of 1 liters to 2.5 liters, usually 4 cylinder engines, the common economy car and mid-range car engines are basically 4 cylinder. 3 liter engine is 6 cylinder, such as the displacement of 3 liters and the new Regal sedan.
Displacement of about 4 liters of the engine is generally 8 cylinder, such as displacement of 4.7 liters of Beijing jeep JEEP4700. Displacement of more than 5.5 liters of engines in general use 12 cylinder engines, such as displacement of 6 liters of BMW 760Li, use V12 engine. In the same cylinder size, usually cylinder number larger displacement, the power is high; and in the capacity of the engine under the same cylinder number, diameter is smaller, the engine speed can be improved, so as to get bigger promotion power.
Understanding the displacement, we will look at other common parameters of the engine. Many junior riders often reflect the words "L4", "V6", "V8", "W12" and so on in the engine column of "auto data". They want to find out what it means. These represent the arrangement of cylinders and the number of cylinders in the engine. There are 3 cylinders, 4 cylinders, 6 cylinders, 8 cylinders, 10 cylinders, 12 cylinders and so on in automobile engines.
First, take a look at one of the most common engine parameters -- engine displacement. Engine displacement is the sum of the working volume of each cylinder of the engine. It is generally expressed in L. While the cylinder working volume refers to the volume of gas piston from TDC to BDC swept, also known as single cylinder displacement, it depends on the bore and piston stroke. Engine displacement engine is a very important parameter, it can represent more than the number of engine and the cylinder bore size, the engine of many of the indicators are closely related with the displacement. Generally speaking, the larger the displacement, the greater the output power of the engine.
