Car displacement，Special terms for hydraulic transmission，refers to the volume of the fluid volume that is inhaled or discharged by each stroke or inhale or discharged。Car displacement is an important parameter for measuring a car。There are also some domestic cars，It does not have the above car model at the tail，However, its displacement is generally written on the body or car。

The volume that the piston moved from one stop point to another is called the cylinder work volume,Use VB to indicate vb = πr2*s; s (where R is the cylinder radius s is a piston stroke), that is, the unit of the cylindrical volume VB is generally used in L

The division of Chinese car levels is determined by the size of the displacement。The displacement of mini cars is less than equal to 1.0L; the displacement of ordinary cars is within 1.0-1.6L; the displacement of the intermediate sedan is within 1.6-2.5L; L within the range; the displacement of the high -end car is greater than 4.0L。

1、Generally seabet appspeaking，The larger the displacement，The higher the engine process requirements，The greater the power output，Popular point is，The faster the car, the faster (the same weight of the car)，Car of the same series，The larger the displacement，The higher the general configuration，For example, Audi A6 1.8T car，The standard is no full -time four -wheel drive function，and A6 4.2 Disted car full -time four -wheel drive is standard，So the price is hundreds of thousands higher than 1.8T A6。

2、displacement is regardless of single and double numbers，There is also a displacement at the end of the single number，For example, QQ1.1，Volvo S80 2.5T, etc.!

3、displacement is the volume unit，So the unit it uses should be ml (ml)，Also useful L (liter)，1L = 1000ml，and Two followed by the general sedan，The car has a turbocharger，The function is to improve the output power of the car (generally for small displacement cars)，For example, the maximum output power of the Audi 1.8T engine will not be less output power than the 2.4 displacement of the 2.4 displacement.。

4、The number of the tail of the general car is the displacement of its，For example, Mercedes -Benz，Audi，BMW, etc.，There is also no，For example, logo 206、307, etc.，and VOLVO's S40，s80, etc.，but，They will also mark the specific displacement logo later。

displacement and fuel consumption have a certain relationship，but，The fuel consumption is not necessarily large。In the relative sense,，The size of the car displacement，The size of the fuel consumption does not constitute a positive proportion relationship。Automotive fuel consumption seabet ioexcept for the displacement，The appearance of the car、Self -weight and engine technology is also an important factor that affects fuel consumption。In the same displacement model，The more advanced engine technology, the more advanced，The more fuel saves the car。This engine technology is generally reflected in: Is it a variable and positive valve system (that is, VVT，VARIABLEVALVETIMING)，Is the number of valves enough，Is it a turbocharged engine, etc.。Speed ​​speed of the time -like valve timing engine，Great torque output，High air intake，Relatively saved fuel consumption，Therefore, the fuel consumption is low; the more the number of engine valves is，The lower the fuel consumption。In addition，The turbocharged engine is also more fuel -saving than non -turbocharged，That is the common model with "T"，Such as a common Passat 1.8T、Audi 2.0T、Roewe 1.8T, etc.。

Actually，The shape is not just beautiful and simple，Because the fuel consumption of the car is also highly related to the shape。It is understood，The wind resistance coefficient of the car's pointed car is relatively small，Therefore, it is more fuel -saving，This type of car is the most typical of flying。It is worth noting that it is，The big mouth design of the more popular car front face is not conducive to fuel saving，but，The advantage of this type of car is with a "big mouth"，greatly increased the amount of air intake，This，The turn of the fan is not as high as "small mouth"，Wind noise is reduced，So，The comfort of people sitting in the car is higher，can almost reach the mute state。High -speed vehicles that emphasize comfort often use big mouth design，The reason lies in this。

Another，The self -weight of the car itself has a lot to do with fuel consumption!