Does the SRX supercharger pass the test, and is the supercharger more powerful than the turbocharger

Supercharging and turbocharging have different characteristics, but there is no difference in power, the former has a linear output close to natural air intake, while the latter has a relatively more abrupt output because of the phenomenon of turbo hysteresis, not so linear. Because of the actuation principle of supercharging (connected to the engine crankshaft), it can be supercharged at low rpm. The power output of the supercharged engine is also proportional to the speed of the crankshaft, that is, the power output of the supercharged engine increases with the increase of speed.

As a result, the output of a supercharged engine is very similar to that of natural gas, but with more horsepower and torque. A turbocharged engine is an engine that relies on a turbocharger to increase the air intake of the engine, and the turbocharger (turbo) is actually an air compressor. It uses the exhaust gas from the engine as the power to push the turbine in the turbine chamber (located in the exhaust duct), and the turbine drives the coaxial impeller to be located in the inlet tract, and the impeller compresses the fresh air sent by the air filter duct and then sends it into the cylinder.

When the engine speed is accelerated, the exhaust gas discharge speed and the turbine speed are also accelerated, the degree of air compression can be increased, and the air intake of the engine will be increased accordingly, and the output power of the engine can be increased.

Turbocharger:

Supercharger:

Also: the Cadillac SRX doesn't have a supercharged model.

I don't know, but I'm interested, do you mean hydraulics by supercharging? If I think it should be more pressurized than the turbo, but if I want to talk about the power, I think the turbo is more powerful, and the force is different.

In general, it is to decide the advantages and disadvantages of the two booster methods according to your needs.

Mechanical supercharging, mainly in the face of large displacement engine, the engine has enough torque to drive the supercharger, the same needs the main output section of the engine in the low speed section below 4500rpm, we all know that the supercharger will become the load of the engine at high speed, and the power increase brought by the supercharger is not as good as the power consumed by the supercharger, then it is beyond the means. However, because the supercharger can be started at the same time when the engine is started when the camshaft is pushed to rotate, because the supercharger is directly linked to the engine by a steel belt, there will be no hysteresis of turbocharging.

Turbocharging, mainly for small displacement engines, requires the engine transmission part (mostly refers to the camshaft part) to be able to cope with the high temperature caused by high-speed rotation, because the output section of the turbine is after 4500rpm, this number is the usual value, that is to say, when the engine speed is faster, the better the supercharging effect, because the turbine is driven by exhaust gas, and the faster the speed, the faster the work is done, and then the frequency and pressure of exhaust gas discharge are greater. There are two disadvantages of the turbine, one is that the turbine advantage is not obvious at low rpm, and the second is the turbo lag (which will not be described here).

In fact, there is no need to choose between mechanical supercharging and turbocharging, Volkswagen has achieved the perfect combination of two supercharging methods, DoubleCharge or Dual Charge technology, which is different from Mercedes-Benz's Bicharge

Tandem turbo technology, as well as other manufacturers such as the universal TwinCharge side-by-side turbo, DoubleCharge uses complex electronic and mechanical conversion components to achieve supercharging and turbocharging interchange at 4500rpm exchange points, which means that Volkswagen can make two supercharging systems work for the engine at the same time.

From the perspective of the power curve of different displacements, the peak torque and maximum power with turbocharging can be improved highly. For the engine, naturally aspirated is standard, then turbocharging is high or optional.

The benefit of a naturally aspirated engine is that the power delivery is a gradual rise linear, relatively smooth. How much oil is stepped on, there is no too obvious delay and hysteresis. Even if it is operated for a long time, its own temperature is relatively low, which also prolongs the aging and decay time of the component.

The requirements for oil products are not too strict, and the fuel consumption is low, which can save the cost of car maintenance in the later stage. However, the idle fuel consumption of the large-displacement self-priming engine is not optimistic.

The biggest benefit of a turbocharged engine is that it saves fuel at low rpm and boosts power at high rpm. Because the turbine power comes from the exhaust gases of the engine, it can correspondingly reduce the exhaust emission pollution. However, the small-displacement turbocharged engine cannot push the turbo intervention at low speed, and the power drops significantly, and the hysteresis and nonlinearity after the turbo intervention will bring a slightly bad driving experience.

Let's compare, with the engine of the same displacement of an ordinary civilian car.

Turbocharging: It was originally a technology used in aviation, and was later first used in automobiles by Saab in Northern Europe (originally built airplanes, and after World War I and World War II, military products were discontinued and converted to automobiles). It is the use of the exhaust gas discharged from the engine to push the turbine to compress the air, thereby indirectly increasing the oxygen content of the engine air, making the combustion more sufficient, improving the performance of the engine, allowing the small displacement engine to reach the large displacement index, the large displacement engine is heavier, in this way, the turbocharging technology indirectly reduces the weight of the engine.

Advantages: It can easily improve performance, and it is easy to adjust.

Disadvantages: fuel consumption has increased (horsepower has increased, it is impossible not to consume fuel), there is turbo lag (the engine is weak at low speed, slow response), non-linear (turbocharged engine has a specific working speed, after reaching the speed, the power will be very significantly improved), the life is relatively natural and the maintenance cost is a little more expensive.

Turbochargers are widely used in rally cars, and in the past F1, the liter engine could burst out of nearly 1,000 horsepower, but not counting fuel consumption, and the large turbo used led to the power when reaching the speed of power, the power was like a flood beast, difficult to control, so the turbo later withdrew from F1. In recent years, the development of turbocharged engines has been very rapid, with more and more advanced technology, durability, and economy, which is much more linear than before, which is a development direction for internal combustion engines in the future.

Supercharger: A supercharger consists of two tightly fitting blades that are connected together by a belt and crankshaft, and a normal supercharger is about the size of an ordinary toolbox and is generally placed on top of the engine. The supercharger works on the same principle as the turbocharger, which is the principle of compressed air, but because the supercharger is completely connected to the engine, there is no delay in power delivery.

Advantages: power on call, linear, long life.

Disadvantages: the effect of improving power is not as good as that of the turbocharger, and it brings a lot of working noise when the engine is at high speed, once the supercharger is damaged, the maintenance is very expensive, and the fuel consumption is also improved.

Naturally aspirated: The most common engine can use the bore, stroke and rpm to adjust different output characteristics.

Advantages: long life, easy maintenance, low fuel consumption, linear output.

Disadvantages: There is definitely a difference in power compared to engines with superchargers.

The naturally aspirated engine is the most widely used and the most balanced, but due to factors such as mechanical friction, the efficiency of the internal combustion engine cannot have a high room for improvement, so it gradually began to develop supercharged and direct injection engines.

In fact, the variable inertia intake manifold can also be regarded as a means of pressurization.

Direct injection engines inject fuel in the cylinders to produce a more uniform fog, while electric injection engines inject in the intake tract, close to the valves.

The turbo increase is dependent on the exhaust gases of the engine, which pushes a propeller and drives the compressor to pressurize.

Mechanical supercharging is to use an electric motor or directly from the engine shaft to take power, drive the compressor pressurization surface, turbocharging does not use a special motor to drive, nor does it use another transmission system, but also uses exhaust gas, the best but, turbocharging is to use exhaust gas, that is, if the engine exhaust gas is not much at low speed, the boosting effect is not good, but at this time it is the most necessary time to pressurize, at high speed, the supercharging is good, but it also increases the exhaust resistance, and it will also consume a little oil mechanical supercharging does not matter, It can be better matched with the engine, and the effect is better, but the fuel consumption is a little higher than that of turbocharging, so high-end cars are supercharged, or mechanical-turbocharged dual supercharging, low-speed with mechanical, high-speed with turbo.

Each has its own benefits, it is better to run high-speed turbocharging, and it is better to run naturally aspirated in urban areas, because the engine has to go up to a certain number of revolutions for the supercharger to work.

1.If you want to save your mind, natural inhalation is the best choice; In pursuit of power, turbocharging won't disappoint.

2.Turbocharging is significantly more powerful than naturally aspirated. Under gentle driving, the fuel consumption of turbocharging is better than that of natural aspiration, and under violent driving, the fuel consumption of both is terrible, and the only thing that can be done with natural aspiration is smoothness.

3.In terms of maintenance, natural aspiration is a turnaround, because of mature technology, simple structure, good stability, and not very picky about fuel and oil.

4.As for supercharging, although it has distinctive characteristics, its high cost and high fuel consumption are not suitable for ordinary users, and there are very few vehicles on the market to choose from.

Extended Materials. Inhale naturally.

Natural aspiration is a common way of air intake in early automobiles, without the help of any external force, close to the atmospheric pressure to press the air into the combustion chamber, it is this natural way, in order to have a linear power output, its smoothness is incomparable to turbocharging, for the driver to be able to predict the burst of power, better controllability.

However, the problem with naturally aspirated engines is that they are not powerful enough, the maximum torque needs to be reached at higher revs, the acceleration is poor, and higher revs are not conducive to fuel performance. In terms of maintenance, natural aspiration is more worry-free, the structure is relatively simple, which reduces maintenance costs, and is not very picky about the quality of engine oil.

Because turbocharging delivers better power than naturally aspirated at a smaller displacement, fuel economy is theoretically better. In terms of maintenance, the current turbine basically achieves the same life as the engine, and consumers do not need to worry, but the standard requirements for oil and fuel are higher, and the direct injection in the cylinder is easy to form carbon deposits, and it is more troublesome to clean up later.

Supercharging. Mechanical supercharging is usually rare, its power characteristics and natural aspiration are similar, its principle is through the rotation of the crankshaft, the use of the belt to drive the turbine impeller, as long as the engine starts, it can work, so there is no turbocharging when the abrupt feeling. The improvement of power by mechanical supercharging is still relatively significant, but there is no adjustment space, high cost, complex structure is the reason for restricting its development, the key is affected by the structure, and its performance in fuel consumption is not satisfactory, and it is destined to be a niche product.

It's hard to say which one is better, the key is to look at the matching of the car and personal liking. Because they all have their own advantages and disadvantages. Both turbocharging and supercharging are based on the naturally aspirated engine with a supercharger in order to increase power and torque within a certain speed range, that is, to improve acceleration.

However, the principle of these two superchargers is not the same, and the effect is also different.

Turbocharging: The exhaust gas generated by the work of the engine is recirculated and re-pressed into the cylinder to make the combustion more sufficient and increase the power at the same time. It was the first Nordic car companies to use this technology, and at present, in addition to Volvo and Saab, Volkswagen is the most commonly used.

The advantage is that the power is significantly improved, the fuel consumption is lower than that of the naturally aspirated engine of the same displacement, and the disadvantage is that the throttle response is delayed, and the service life of the turbocharger is relatively limited, generally 150,000 kilometers.

Supercharging: Coaxial with a naturally aspirated engine, the supercharger is driven by the engine. The representative model is the Mercedes-Benz C200K

The advantage is that the throttle responds quickly, there is no lag, and it is always on the pedal. There are almost no problems with replacing the supercharger.

The downside is that the power boost is not as great as that of a turbocharger.

Each has its own benefits.

It's better to run high-speed turbocharging.

It's better to run around the city and inhale naturally.

Because the engine has to go up to a certain number of revolutions.

The supercharger works.

Turbocharging, supercharging, expensive maintenance, such as Magotan.

Naturally aspirated fuel consumption is relatively high, but maintenance costs are low.

Turbo increase is dependent on the exhaust gas of the engine, push a propeller, drive the compressor supercharging mechanical supercharging is to use an electric motor or directly from the engine shaft to take power, drive the compressor supercharging surface, turbocharging does not use a special motor to drive, nor does it use another transmission system, but also uses exhaust gases, the best.

However, turbocharging is done with exhaust gases, that is, if the engine exhaust gas is not much at low speed, the supercharging effect is not good, but at this time it is the time when supercharging is most needed, at high speed, supercharging is good, but it also increases the exhaust resistance, and it will also consume a little more fuel.

It doesn't matter if the supercharger is supercharged, it can be better matched with the engine, and the effect is better, but the fuel consumption is a little higher than that of turbocharging, so the high-end cars are supercharged, or mechanical-turbocharged dual supercharging, low-speed with machinery, high-speed with turbo.