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List of catalogs of this article:

• 1,casino plus free 100 What is the principle and implementation method of the "variable compression ratio" engine?
• 2, What benefits does variable compression ratio technology bring to the engine?
• 3, What benefits does variable compression ratio technology bring to the engine?
• 4, variable compression ratio engine disadvantages

What is the principle and implementation method of the "variable compression ratio" engine?

1. Its working principle is to participate in re-combustion by leading the exhaust gas emitted by the engine into the cylinder. So as to reduce the temperature of the combustion chamber. Reduce the generation of NOx (nitrogen and oxygen compounds). Ordinary cars are controlled by EGR valves. There are also some high-end ones. It is the control of EGR position sensor.

2. It is said that this modelThe displacement of the engine is only 5L, but its maximum power is 220HP, and the maximum torque is 420Nm. The maximum power output is equivalent to the power provided by the Peugeot 0-liter V6 engine, and its torque reaches the torque output of some V8 engines.

3. Variable compression ratio engine, as the name implies, is an engine with variable compression ratio, which can also be said to be a more adaptable turbocharged engine. The purpose of variable compression ratio is to improve the fuel economy of the supercharged engine and reduce fuel consumption.

What benefits does variable compression ratio technology bring to the engine?

1. The advantage of variable compression ratio is to improve the fuel economy of supercharged engines.In the supercharged engine, prevent explosion. Its compression ratio is lower than that of a naturally aspirated engine. Under lower pressurization pressure, the thermal efficiency is reduced, which reduces fuel economy.

2. It is conducive to reducing emissions. In order for the catalytic conversion process to proceed smoothly, the ternary catalytic converter must reach an operating temperature of about 400℃ before it can start working.

3. This variable compression ratio technology improves the thermal efficiency of the engine by 20% and can reduce the wear of moving parts.

4. Variable compression ratio means that the compression ratio of the engine can be changed, so that different compression ratios can be used under different working conditions, which can improve the efficiency and fuel economy of the engine. The new Nissan Tianyi 0t model is equipped with variable compression ratio technology. The compression ratio refers to the compression ratio of the combustion chamber.Generally, the compression ratio of naturally aspirated engines is relatively large.

5. Hello, Variable Compression Ratio (VCR) is the same as the literal meaning, that is, it can change the compression ratio when the engine is running.

6. Variable compression ratio can change the compression ratio of the engine, so that different compression ratios can be used under different working conditions, thus improving the efficiency and fuel economy of the engine. The new Nissan Tianyi.0t model is equipped with variable compression ratio technology. The compression ratio refers to the compression ratio of the combustion chamber.

What benefits does variable compression ratio technology bring to the engine?

1. This variable compression ratio technology improves the thermal efficiency of the engine by 20% and can reduce the wear of moving parts.

2. It is conducive to reducing emissions. In order for the catalytic conversion process to proceed smoothly, the ternary catalytic converter must reach an operating temperature of about 400℃ before it can start working.

3. Variable compression ratio means that the compression ratio of the engine can be changed, so that different compression ratios can be used under different working conditions, which can improve the efficiency and fuel economy of the engine. The new Nissan Tianyi 0t model is equipped with variable compression ratio technology. The compression ratio refers to the compression ratio of the combustion chamber. Generally, the compression ratio of naturally aspirated engines is relatively large.

4. Hello, Variable Compression RaTio, VCR), the same as the literal meaning, that is, it can change the compression ratio when the engine is running.

Disadvantages of variable compression ratio engine

1. For the engine, the greater the compression ratio, the stronger the power. However, the compression ratio should not be too large, so that an explosion will occur under certain working conditions. Explosion is an abnormal combustion phenomenon in the engine. During the compression stroke, if the combustible mixture burns before the spark plug ignites, it is an explosion.

2. High compression ratio, high engine efficiency, fuel saving, and greater power and torque. However, the requirements for fuel labeling are high, otherwise it will cause an explosion and destroy the engine. At present, most of the ways to achieve variable compression ratio are realized through VVT, which is a variable timing valve.Naturally, the cost is also high.

3. Disadvantage 1: The power is not radical. The medium and low-end models of Nissan Tianyi are equipped with a 0L naturally aspirated engine. The maximum horsepower of the vehicle is only 156 horsepower. The power performance is still sufficient when driving alone, but it will be a little hard when traveling at full load, not only slow acceleration, but also Overtaking at high speed is also more tirdug.

4. If the compression ratio of the engine is relatively high, the cylinder pressure and temperature generated during compression will also be relatively high, and the thermal efficiency of the engine will naturally be higher. But excessive compression will lead to explosions.

5. However, an unlimited increase in the compression ratio may cause the vehicle engine to explode and affect the life of the vehicle engine.