I think most of my friends pay attention to the engine of the car when they buy a car. For the car, the engine is like the "heart" of the car, without the support of the engine, the car is a pile of scrap iron. For automakers, a good engine determines the sales of that car. Automotive engines have been developed for many years. When China's automobile industry was just developing, there was no core technology of the automobile engine, so it borrowed the engine of the Japanese car. At that time, the core technology of automobile engines was almost completely monopolized. This shows the importance of an engine to an automobile manufacturer. Today's car engines are roughly divided into two types. One is a turbocharged engine and the other is a naturally aspirated engine. This engine has its own advantages and disadvantages. Naturally aspirated engine is the most mature engine, at the beginning of the development of China's automobile industry, it was widely used in various models, and the turbo engine is the engine that has just emerged in recent years, and the use of turbocharged engines has attracted much attention.
Some friends who understand cars may think that now China's own brands use a large number of turbocharged engines, and why does Toyota of Japanese cars not use turbocharged engines? Did you know that Toyota, the world's largest automaker, didn't master the technology of turbocharged engines? Before we begin today's story, let's first understand what a turbocharged engine is, which is an engine equipped with a turbocharger. Turbochargers are actually air compressors that increase the amount of air inhale by compressing air. Using the inertial force of the exhaust gas discharged by the engine to drive the turbine in the turbine chamber, the turbine drives the coaxial impeller, and the impeller pressurizes the air transported by the air filter pipe to increase the pressure of the cylinder. When the engine speed is accelerated and the exhaust gas emission speed is accelerated in parallel with the turbine speed, the impeller can compress more air into the cylinder, increasing the air pressure and density to burn more fuel. Correspondingly, as long as the amount of fuel is increased and the speed of the engine is adjusted, the output power of the engine can be increased.
Does Toyota not use turbocharged engines because of technological backwardness? With Toyota's current technology, it's not difficult to produce a perfect turbocharged engine, but Toyota doesn't want to compromise with the market. At present, Toyota is currently mainly researching and developing naturally aspirated engines, and does not want to invest a lot of money in researching turbocharged engines. Why doesn't Toyota use a turbocharged engine?
(A) the engine temperature rises, the power transmission speed of the turbocharged engine is very fast, and the temperature inside the engine can reach a high temperature of 1600 in the working state. The life of the engine that has been in a high temperature state for a long time will definitely be affected, and the engine parts will also be damaged, and if it is a regrettable driving, it will need to waste costs. After driving for a long time, the temperature of the engine will also rise, and the probability of spontaneous combustion of the car will also increase significantly. 2) The influence of car brands, as you know, Toyota has always been known for durability. Toyota's durability is a well-known leader in the automotive industry. The reason for this is that Toyota has always been equipped with a naturally aspirated engine known for its stability and durability. Toyota's naturally aspirated engine technology has become a success, occupying part of the market. If you accidentally use a turbocharged engine, it will definitely affect your car brand.
(C) the matching of the transmission, in fact, is not just Toyota. Most Japanese models now use CVT transmissions. The shift method of this transmission is very smooth, without any setbacks. However, the disadvantage of this transmission is that it cannot be driven violently. The power output of the turbocharged engine is too strong, which not only cannot improve the stability of driving, but will damage the transmission. This is one of the reasons why Toyota does not use turbocharged engines.
Written at the end, turbocharged engines are really popular right now. Most people are fascinated by the unique power output. However, the disadvantages of the turbocharged engine are also very obvious, and when there is not much demand for running speed, it is recommended to choose a car equipped with a naturally aspirated engine. Naturally aspirated engines are not only highly stable, but also very durable, reducing fuel consumption during use and saving subsequent maintenance costs.