An explanation of the type of engine and the engine's performance parameters

The heart of the car - The engine of the car is the heart of the car, which powers the car's movement. The car's power, economy, and environmental protection. Simply speaking, the engine is an energy conversion mechanism. That is to say, the heat energy of gasoline (diesel) is converted into mechanical energy by pushing the piston to work when the combustion gas expands in the sealed cylinder. This is the basic principle of the engine. All the engine structure is for energy conversion. Although the engine has gone through more than 100 years of history with the automobile, it has greatly improved in design, manufacturing, process, performance and control. The basic principle remains unchanged. This is an era of innovation and creativity. Those engine designers constantly integrate the latest technology with the engine and turn the engine into a complex mechatronic product, which will bring the performance of the engine to near perfection. To the extent that world-famous automakers also regard engine performance as a competitive highlight, what is engine performance?

The type of engine Modern high-tech is perfectly represented on the engine. Some new technologies and new structures are widely used on the engine. Such as V12, V8, V6 engine: They all refer to the cylinder arranged into a V-type, this engine makes full use of dynamic principles, has a good stability, increase engine displacement, reduce the engine height. Such as: AudiA860 use W12-12 cylinder V-arranged engine, BENZS600 use V12-12 cylinder IV-arranged engine.

Under normal circumstances, according to the size of the displacement of the engine is divided into three cylinders, four cylinders, six cylinders, eight cylinders of several types. Currently, 1.3L-2.3L displacement cars mostly use in-line four-cylinder engines, which are characterized by small size, simple structure, and easy maintenance; displacements of 2.5L or more generally use multi-cylinder design, including in-line six-cylinder, such as BMW; There are also V-type six-cylinder engines arranged at both sides of a certain angle, which can reduce vibration and noise, such as Buick cars; in general, the greater the displacement, the higher the engine's power. However, there are also some small-displacement vehicles that use turbocharged, multi-valve, variable timing and other technologies to increase power.

Engine Performance The engine performance parameter is the parameter that best reflects the engine's working ability. It mainly includes: displacement, maximum power, and maximum torque.

About Displacement: Displacement is often associated with engine power. The size of the displacement affects the power level of the engine. It is usually also used as a standard for dividing high, medium and low-grade vehicles. What is the displacement? Everyone knows that the piston moves up and down in the cylinder, so that the reciprocating motion must have a highest point and a lowest point. The volume of the cylinder that the piston sweeps from the lowest point to the highest point is called the single cylinder displacement, and all the cylinder displacements. The sum is called the engine's displacement. Obviously 3.0's displacement should be satisfactory to you.

About the maximum power and maximum torque: This is often the two concepts most easily confused by everyone. Some people think that the greater the power of the car, the greater the force, which is not the case. The same 300 horsepower, in the sports car can allow the car to run to speeds of more than 250 km / h, but in a container truck, may be up to only 150 km / h, but it can drag 30-40 tons of weight Containers. The secret here is that the torque of the two vehicles is very different. In simple terms, the power is expressed in high speed. In the engine performance curve, it rises obviously with the speed, it determines how fast the car can run. Torque does not necessarily play at high speeds. It is relatively flat on the graph. It can determine the strength of the car, including acceleration.

When interpreting the engine parameters, it is important to note that you should not only look at the power, but also the torque parameters, and pay attention to the speed when the engine is at maximum power and maximum torque. Of course, the speed is slightly lower.

The charm of the car is in its dynamic, but the dynamic soul is in the engine. The engine has been developed to the present day and it is very perfect. It is hard to imagine the days when the engine was lost. The car will be like what it looks like.