How naturally aspirated engines work

To put it simply, the turbocharged engine uses the supercharger to squeeze out higher horsepower, but the response is sluggish when it starts, while the naturally aspirated engine accelerates smoothly and the line is very strong. For example, a supercharged engine that achieves 500 horsepower and a naturally aspirated engine that achieves 500 horsepower have a completely different feeling, the former relying on the supercharger to squeeze out the horsepower, and the latter does not accelerate smoothly. But the former seems to have become the trend of engines now and even later, and many car manufacturers now use this engine technology because of fuel economy and environmental protection.

To put it simply, it is a four-stroke internal combustion engine without a supercharger, and the working principle is, one: intake, that is, the mixture of gasoline and air enters the cylinder through the intake valve. Two:

Ignition, i.e. the spark plug ignites the gas mixture entering the cylinder and causes it to burn. Three: work, that is, when the mixture is burned, the pressure is generated to push the piston down, so that it drives the crankshaft to rotate and produce reciprocating motion.

Four: exhaust, that is, the piston is pushed up due to the round-trip movement of the crankshaft, so that the exhaust gas after combustion is discharged out of the cylinder through the exhaust valve. It's called a four-stroke.

Naturally aspirated engines are intake at atmospheric pressure caused by the piston stroke.

Turbine engines use turbine blades to force air intake.

In layman's terms. If the naturally aspirated engine is a stovetop.

Then the turbine engine is a stove with a blower.

It does not rely on any external force, but only the vacuum generated in the piston volume when the piston moves downward in the intake stroke.

Let me tell you my own understanding.

Inhalation itself cannot be perfect. It still has its drawbacks. First, naturally aspirated engines.

The power is not as good as turbocharging.

strong, which is recognized, there is nothing to say; Secondly, the maximum torque of the naturally aspirated engine needs to be achieved at higher rpm, which results in a poor sense of acceleration, and higher revs are not conducive to fuel performance.

First, naturally aspirated and turbocharged cars, let's talk about the difference first. Naturally aspirated means that after the engine is started, the air enters the oxygen according to the natural principle, so that the gasoline in the engine cylinder burns and outputs power. Turbine engines.

Engine cylinders are increased by turbocharging. The intake air makes the gasoline burn more fully, thereby increasing the power output of the engine;

Second, after talking about the basic principles, let's talk about the advantages and disadvantages. The displacement of a turbine engine is the same as that of a naturally aspirated engine. The turbo horsepower is higher, the revs are faster, and it is comparatively more fuel-efficient. Altitude sickness.

Weaker than natural aspiration and has some drawbacks. The engine is less resistant to handling and more refined. Generally, gasoline of No. 95 and above is required to be prone to carbon accumulation in the cylinder. to the gearbox.

The requirements are relatively demanding. Sometimes it is easy to feel frustrated at low speeds, and the ride comfort is weak;

3. Many people think that the desire for nature is too backward. In fact, I think it also has many advantages, such as higher engine durability, mature technology, relatively simple mechanism, smoother power, and low oil requirements. The downside is that the technology is somewhat outdated.

Similarly, the displacement power is weak, and the growth rate and fuel economy are relatively weak;

In conclusion, I think that both engines have their own advantages and disadvantages, and it is necessary to choose according to their respective uses, vehicle reputation, and actual scenarios. If I were you, I would like some naturally aspirated air with a large displacement, adequate power reserve, more reliability in the field, and better driving. At the same time, the feeling of continuous power delivery is more enjoyable.

There are also many cars, such as Toyota Domineering.

Land patrols. Lexus ls

What the 570 has always pursued is that if it is usually used at home, the power requirements are average, and both engines are acceptable. What I said above is just referring to the same displacement, but relatively speaking, haha, remember.

Naturally aspirated engine: One of the ways in which a naturally aspirated car takes air to provide power support for the vehicle by using atmospheric pressure to force air into the combustion chamber without passing through any supercharger. When a vehicle's engine is running at low revs, the turbocharging system is usually turned off, and the power output of a turbocharged engine is essentially the same as that of a naturally aspirated engine with a small displacement, but it will perform better when compared to a naturally aspirated engine with the same maximum power.

A naturally aspirated engine is an engine that is not turbocharged or supercharged. The air is sucked into the cylinder by the cylinder pressure, and the forced air intake device is not used, that is, in the process of the piston walking down, the vacuum degree is generated. At this time, the outside atmospheric pressure is greater than the pressure in the cylinder, and the air enters the cylinder from high pressure to low pressure.

That's why it's called natural aspiration. Its advantages are: low purchase cost, good brake smoothness, and low maintenance cost in the later stage.

Naturally aspirated engine, it works through the natural aspiration of the engine, this kind of engine, it is characterized by very stable driving, and the reliability is very good.

The working principle of the naturally aspirated engine is that the naturally aspirated type does not have a supercharger, which means that the air simply passes through the air filter - throttle (commonly known as the "throttle") - intake manifold - to the "cylinder", and the gasoline is directly injected into the intake manifold through the fuel injector.

Taking a four-cylinder engine as an example, a piston has four strokes for one work: downward (the intake valve is opened, there is a pressure difference, and the mixture of air and fuel enters the cylinder under the action of the pressure difference) - upward (the intake valve is closed, the mixture is compressed, and the piston is ignited when it goes up to the highest point) - it is grinding and descending (the mixture burns and expands, pushing the piston to work externally and outputs power) - and upward (the exhaust valve is opened, and the exhaust is exhausted).

Naturally aspirated type means that in the first stroke above, the mixture is inhaled by the naturally formed pressure difference, and the pressurized type refers to compressing the gas first, increasing the pressure and density of the gas, and when the valve is opened, the pressure difference and the high pressure of the gas itself are used to increase the air intake, and the passenger car improves the power.

Photo by Zhu Zhenchang) @2019

1.Natural inhalation starts the stove Kai machine to start the cong defense and is stable, which makes people feel very comfortable. 2.

The acceleration of the naturally aspirated engine is more linear, without the abruptness of a turbocharged engine. 3.The internal structure of the naturally aspirated engine is relatively simple, coupled with the long development time and mature technology of the naturally aspirated engine, which will lead to a longer service life of the self-permeable rock-aspirated engine.

4.The lowest naturally aspirated engine of the same model. 5.

Naturally aspirated engines have relatively low fuel consumption. And later maintenance is relatively more economical. Even if the fuel consumption is equal, the oil requirements of the naturally aspirated engine are very low, which indirectly reduces the cost of car maintenance.

To summarize briefly, naturally aspirated engines are relatively best in terms of ride comfort, durability, stability, and safety. Moreover, it is no exaggeration to say that naturally aspirated engines can be driven and scrapped as long as they are maintained on time, not violently driven, and not damaged by man. For details, please refer to the taxi on the road.

The naturally aspirated engine is one of the ways in which the engine takes intake, using atmospheric pressure to inject air pressure into the combustion chamber without the need for any supercharger, thus providing power support for the vehicle.

The advantages of a naturally aspirated engine can be summarized as follows:1Smooth operation and comfort; 2.

Acceleration is linear, without the abruptness of a turbocharged engine; 3.The internal structure is simple, the technology is mature, the service life is longer, and the maintenance cost is lower. 4.More affordable; 5.

Low fuel consumption, and low requirements for oil products, reduce the cost of car maintenance. In short, naturally aspirated engines are the best choice in terms of comfort, durability, stability and safety. As long as it is maintained on time, there is no violent driving, and there is no man-made damage, you can use it all the time until it is scrapped.

Introduction to the benefits of naturally aspirated engines: 1. The naturally aspirated engine is very smooth to drive, making the owner feel comfortable. 2. The acceleration of the naturally aspirated engine is more linear, and there is no abrupt feeling of the turbocharged engine.

3. The internal structure of the naturally aspirated engine is simpler, coupled with the long development time of the naturally aspirated engine and the more mature technology, which will lead to a longer life of the naturally aspirated engine and a more worry-free use. And post-maintenance is relatively cheaper. 4. For the same model, the price of the naturally aspirated engine is the lowest.

5. Naturally aspirated engines have relatively lower fuel consumption. That is, the fuel consumption is equal, and the requirements for oil products of the self-beam sliding aspirated engine are not high, which indirectly reduces the cost of car maintenance.

1.Low cost of naturally aspirated engines: The biggest difference between turbocharged engines and naturally aspirated engines is that there is an extra turbo, but the cost is much higher, which can also be reflected in the final price of the car.

Even small-displacement turbocharged models are more expensive than larger-displacement naturally aspirated models, and many car brands keep naturally aspirated models in order to lower the price threshold. 2.Good ride comfort:

Nowadays, in many cities, traffic jams have become the norm, and there are many traffic lights. It's annoying to go back and forth. If the disadvantage is a turbocharged model, it is more uncomfortable to drive in the city.

Nowadays, the turbo intervention time of many models is getting earlier and earlier, which not only delays the turbo intervention, but also does not go smoothly in the case of stop-and-go in urban areas, which affects comfort. 3.Low post-cost:

Naturally aspirated engines have another advantage over turbocharged engines, that is, the later maintenance cost is low, because turbochargers have a life, not only in the process of daily use is prone to problems, but also after a long time to replace the corresponding parts, will increase the economic burden of car maintenance in the later stage.