What are the advantages and disadvantages of supercharging compared to turbocharging?

Advantages of supercharging: supercharging completely solves the lag of throttle response, turbo lag and sudden power output, achieves instantaneous throttle response, and the power is output linearly with the speed, increasing the driving performance effect. In addition, at low speed, high torque, and instantaneous acceleration, supercharging technology is superior to turbocharging technology.

Mechanical pressurization technology does not need to be connected to the engine's lubrication system, does not require cooling, is maintenance-free, works reliably and has a long service life. Disadvantages: The acceleration effect is not very noticeable and does not differ much from the naturally aspirated engine. It will lose part of the kinetic energy of the engine, and the supercharging is driven by the belt, and in the final analysis, the driving force is still the engine.

At high speeds, a lot of friction will be generated, which will affect the increase of speed and make a lot of noise. Advantages of turbocharging: turbocharging structure is simple and low-cost, no maintenance, power comes from the exhaust of the engine, so it will not consume the power of the engine, and the engine has better power in the high speed range.

Disadvantages: The turbocharger needs the engine to reach a certain speed before it can intervene in the work, before which the engine is equivalent to the power of a self-priming engine, so there will be a certain hysteresis in the power of the turbocharged engine. Extended Resources:

Supercharging has a linear output close to natural air intake, which can obtain the supercharging effect from the beginning, but it consumes a part of the engine power, so it is generally used in large displacements, such as Audi S5 supercharging, Range Rover supercharging, etc. Turbocharging because it has to get close to a certain speed to get the maximum torque (turbo hysteresis), so the low-speed torque is relatively poor, but once the turbo intervenes, the power increase is very abrupt, and generally engines of various displacements are used, such as Peugeot 308 Honda new Civic BMW 335 and so on. Encyclopedia - Mechanical Charge Encyclopedia - Turbo Charged.

Mechanical supercharging is the use of the power of the engine itself to drive a compressor to pressurize. Therefore, the characteristic is that the transmission is direct, and the car can work when it starts. But it 4 loses power more obviously at high speeds.

Turbocharging, on the other hand, uses the exhaust gas power generated by the engine to push the fan for indirect supercharging. Therefore, the characteristic is that it cannot be directly pressurized, and the exhaust gas discharged at low speed cannot push the fan, and it can only be above a certain speed. This gives rise to the so-called turbo hysteresis, which is also a common problem with turbocharging.

However, at high speeds, the power boost is noticeable. Half of the small displacements are turbocharged, and the large displacements are more mechanically supercharged.

First, let's talk about supercharging.

The supercharger is directly driven by the engine crankshaft belt, and the compressed air enters the engine cylinder to produce a pressurization effect. The characteristic is that the engine can also provide the corresponding supercharging effect at low speed to improve the power performance, but it needs to lose part of the engine's power, especially in the high speed area, increasing the engine's fuel consumption. As a result, mechanical supercharging is rarely used in today's passenger car upper-grip, and only a few racing engines still use this supercharging.

Advantages: Synchronized with engine speed, good boost response, consistent acceleration of the car, especially in the low-rev area.

Disadvantages: There is a part of the loss of engine power, and the acceleration effect in the high speed area is not obvious.

Next, let's take a look at how turbocharging works.

Turbocharging uses the energy generated by the engine during the exhaust process to drive the turbine to rotate, and the exhaust turbine is directly connected to the intake compressor to achieve the effect of intake air boosting. It is characterized by the ability to increase the intake pressure and improve the power performance of the engine without consuming the energy consumption of the engine.

Advantages: The exhaust energy of the engine is effectively used to provide pressurization for the air intake system, and the energy saving effect is good.

Disadvantages: The exhaust energy in the low speed area is insufficient, the supercharging effect is not obvious, and the intervention of turbocharging can not be felt until a certain speed has passed, and the acceleration has a sense of delay and incoherence.

To put it simply, the power output of the naturally aspirated engine is smooth, and the fuel consumption is high at low speeds; The acceleration response of the supercharged engine is good, and the fuel consumption is increased at high speeds; Turbocharging, on the other hand, uses the energy generated by the engine during the exhaust process to drive the turbine, saving the energy consumption of the engine and improving the power output of the engine.

1. The dynamics are different.

Turbocharging can get a very good dynamic front end at low revs, while turbocharging will lag.

2. Turbocharging is different.

The increase in power at high autoclav is very limited, while turbocharging is not.

If you are a person who understands cars, I don't know if you have noticed that the supercharged engine that was once as famous as the turbo has been silent for a long time. Isn't the supercharger, which has been used since the beginning of the last century, been born for nearly 50 years and still turbocharged and cooled? Naturally aspirated engines, also known as NA (English normally aspirated) engines, directly deliver air from atmospheric pressure to the engine cylinders, without pressurization, by mixing with fuel, combustion in the cylinders to do work, to provide power output to the engine.

One point: the air intake system is simple and straightforward, the engine power delivery is smooth and smooth, and there is no noticeable lag when stepping on the accelerator. Cons:

The idle and low-speed zones do not give full play to the maximum performance of the engine, resulting in increased fuel consumption. On the contrary, the supercharged engine compresses air into the cylinder through external pressurization, providing more combustible air in the cylinder, making the fuel burn more fully, thereby improving the engine's power and fuel economy. It is characterized by improving the power output of the engine by supercharging the air intake on the basis of the original performance of the engine, which is often referred to as small displacement and high horsepower.

Actually, it's not, but in terms of popularity, mechanical supercharging is not as popular as turbocharging. These are the result of the different characteristics of the two. Turbocharging is characterized by fuel efficiency.

As long as the speed reaches the specified range, the turbocharging can be started, and the engine speed requirements are not high, which can not only save fuel, but also achieve a good power level. Fuel-efficient + good power. At the same speed, turbocharging works better than mechanical supercharging.

These three points are the advantages of turbocharging. That's why the small-row T-engine is especially popular now.

The supercharger is directly driven by the engine's crankshaft belt, and compressed air enters the cylinder to produce a pressurization effect. It is characterized by the fact that it can also provide a corresponding boost effect to increase the power when the engine rotates at low speeds, but it needs to consume a part of the engine power, especially in the high-speed area, to increase the fuel consumption of the engine. Therefore, today's passenger cars rarely use supercharging, and only a few racing engines still use this supercharging method to make the shortage of capacity.

The disadvantages of turbocharging are also obvious, because it takes time for the turbo to intervene, and before the turbo does not intervene, the power is the power of a small displacement engine; In addition, the turbine involved in the engine work will have a lag in the power output, and the power will "gush out" for a period of time. The feeling that comes with this is not acceptable to everyone; The most important point is that the life of the turbocharger must be considered, and later maintenance is also an issue.

The advantage of turbocharger is that it can effectively use the exhaust volume, which can achieve the effect of energy saving, and the disadvantage is that the effect of supercharging is sometimes not obvious, and sometimes there is a sense of delay. The advantage of mechanical supercharging is that the effect of increasing is very good, the vehicle will be very fast in the process of acceleration, and the disadvantage is that it will cause loss to the widening combustion engine. Mainly because of the demand of the market, now small displacement family cars will be more common, mechanical supercharging is not quiet, and it is suitable for small displacement Qibu cars.

The advantage of turbocharging is that the fuel consumption is very low, it does not intervene at low speeds, and the power at high speeds is very strong. The downside is that sometimes there is a sense of frustration. The advantage of mechanical supercharging is that the low-speed power performance is good, there is no sluggish phenomenon, the disadvantage is that it is very fuel-consuming, and sometimes the power is not enough in the process of high-speed driving.

The disadvantages of this supercharging method are very obvious, and it is not suitable for home use when there is a chain Kai.

Turbocharging can increase the air intake of the engine, which is conducive to improving the intake efficiency, and the axle can be removed to ensure the torque and power of the car. Mechanical supercharging can ensure the pressure of the engine speed, and the feeling of acceleration is relatively linear, but the light consumption of oil celery is not obvious, and it needs to be driven by the belt. Because of the technological innovation nowadays, almost all models are turbocharged.

Supercharged engines have been in production for many years, and the main ways of supercharging are turbocharging and supercharging. However, most of the supercharged engines we usually see are turbocharged, but very few are mechanically supercharged. Why do manufacturers like to use turbocharging instead of mechanical sliding pressure?

Let's talk about this topic today.

Why is it necessary to supercharge the naturally aspirated engine when working, the piston sucks air into the cylinder, and the supercharging refers to providing high-pressure air at the intake end of the engine, so that the air body actively enters the cylinder, so the supercharging can make the cylinder enter more air-fuel mixture and improve the engine power.

TurbochargingTurbocharging uses the exhaust energy of the engine to pressurize the air body. The supercharger is mounted on the exhaust manifold. The exhaust gas of the engine drives the turbine to rotate, and the turbine drives the coaxial compressor impeller to pressurize the air body and transport it to the engine intake to achieve pressurization.

The turbocharger is driven by exhaust gases, and when the engine is running at low speed, the amount of exhaust gas is not enough to drive the turbocharger to reach sufficient boost pressure, so the turbocharged engine will only have a boosting effect after reaching a certain speed. And there is a delay from pressing the throttle to increasing the displacement, so there is turbo lag in turbocharged engines.

At present, small turbochargers are widely used in family vehicles. Small turbochargers have a low moment of inertia and are easier to drive. Many family cars can reach maximum torque at very low revs, and turbo lag can also be improved to a certain extent.

But in the high-speed range, although there is a large amount of exhaust gases, due to the volume of the supercharger, the boost pressure it can provide does not rise too much. But the most commonly used family car is in the low-speed range, so the small turbo is perfectly adapted to the family car.

However, performance cars generally prefer to use larger turbochargers, or even multiple turbochargers. Large turbines have a large moment of inertia and are more difficult to drive, so the maximum torque and speed of performance cars are relatively high. But at high speeds, there is plenty of exhaust gas, and the big turbo can provide more boost pressure, so performance cars tend to squeeze out more power.

Moreover, the engine of a performance car is often at high speed in use, so a large turbo is more suitable.

Turbocharged state riders are cheaper, but the turbine operating temperature is high, and the engine heat dissipation requirements are high.

The supercharger is driven by the engine, which is connected to the engine by a belt, and drives an inner spiral air compressor to provide intake air boost to the engine.

Since the supercharger is directly connected to the engine, there is almost no delay in supercharging, and the engine can provide supercharging as soon as it starts, so the power output of the engine is very smooth, and some luxury cars can achieve better driving quality by using supercharging.

But the supercharger is more expensive, the higher the speed of the supercharger, the greater the moment of inertia, and the more engine power is consumed. As a result, the maximum power of the supercharged engine will be limited to the high-speed range, as the supercharger consumes a lot of engine power.

Overall, supercharging is more of a icing on the cake and is suitable for use in situations where driving quality is critical. Turbocharging, on the other hand, is more of a stimulant and is able to get the desired power at the lowest possible cost.

Millions of car purchase subsidies.

To put it simply, turbocharging involves using exhaust gases to blow through a turbine and then rotating the turbine to draw in more air. But supercharging works through a belt that drives the turbine through the engine to rotate and draw in air. In terms of power performance, there is turbine lag because the exhaust gases require a certain speed to turn the turbine properly, but the power limit can be very high.

The power source for supercharging is the engine, so there is basically no lag, but the power limit is relatively low.

<> mechanical supercharging potential is low, the cost is expensive (there are only a few manufacturers that can be matched), and the space occupation is relatively large, which can be regarded as when the turbocharging technology is not perfect, the beam core plays a role in substitution or transition, and now the turbocharging technology is becoming more and more mature, so the so-called mechanical supercharging, the supercharger is driven by the engine crankshaft, that is to say, when the work of the returning machine begins, the mechanical pressurization in the slag leakage begins to compress the air at the same time. Because supercharging uses engine drive rather than exhaust gases to propel the turbine, it reacts faster than conventional turbines.

The air contains various molecules, and the remaining part is carbon dioxide, as well as rare and noble gases such as helium, neon, argon, krypton, xenon, and radon; There is a contradictory feature between various molecules, that is, not only mutually exclusive but also attractable, so the speed of the internal combustion engine of the ordinary scooter is strictly limited, and most of the internal combustion engines will be protected by oil cut-off at about 6500 rpm; Even if the speed of the S system can be amplified by the gear set, but when you can drive a car to turn on the compressor of the cold air conditioning system, will the power deteriorate significantly? I believe that anyone with car driving experience will give a positive answer, the reason is that the compressor is also connected to the crankshaft through a belt, and the power when compressing the refrigerant comes from the torque of the crankshaft.

Do a detailed interpretation of the problem, I hope it will help you, if you have any questions, you can leave me a message in the comment area, you can comment with me more, if there is something wrong, you can also interact with me more, if you like the author, you can also follow me, your like is the biggest help to me, thank you.