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First of all, I want to say that the three-cylinder only indicates the number of cylinders of the car engine, and does not represent the quality of the car, in addition, the cylinders of the car are generally double-numbered, because it is convenient for symmetrical arrangement, I have not been exposed to the three-cylinder engine, so I don't know the three-cylinder car you said. However, the quality of the car is a big concept, including the body, the site, the engine, the circuit and many other aspects, it should be noted that the quality of the car is first based on good design, and then the level of manufacturing process, etc. Of course, the performance of the engine is a very important aspect, and the engine is as important to the car as the heart is to the human body, so when choosing a car, of course, you have to look at the engine.
Also, I think there are some misunderstandings about fuel consumption. The three-cylinder does not indicate the fuel consumption index. The fuel consumption of the car is mainly related to the displacement, and the displacement is the sum of the working volume of all cylinders of the automobile engine, under normal circumstances, the larger the displacement, the higher the fuel consumption.
Of course, the manufacturer will provide the parameter of fuel consumption of 100 kilometers for each model, which has a certain significance, but the fuel consumption is also related to many aspects such as the operator, and the specific problem is treated. It is recommended to find an old driver to go with you when buying a car, it will be of great help.
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The Alto car is not bad, I bought my girlfriend a two-cylinder Skylark, an original Subaru machine, and the displacement is not bad.
Normally, you can run to 100, and if you remove the speed limit, you can run to 120
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As the heart of the car, the engine generally occupies more than one-third of the cost of the whole vehicle, and a better car in which the engine is better, and the cylinder as the main place of work of the engine, the more cylinder blocks represent the better the power performance of the car. The current three-cylinder engine is stuck in a strange circle.
Whether it is a car black, or a car fan, whether it is an automobile expert or a pseudo-expert, there is something to tell about the three-cylinder engine. The three-cylinder engine has fallen into the crosshairs, and even if there is real technology, vehicle sales are still facing a serious test, and a wave of large-scale price reductions has appeared.
As a practical point of view when buying a car, looking at the current three-cylinder engine technology, it is still recommended to look at the four-cylinder, although BMW.
Many people think that the three-cylinder engine will be more fuel-efficient, but the core factors that determine the fuel consumption are displacement and thermal efficiency (only the engine is discussed). Displacement refers to the total volume of intake or exhaust fluid of the engine, and the size of the intake volume determines the amount of fuel injected, because the air-fuel ratio is fixed.
The perfection of the four cylinders lies in the fact that each of the two pistons works in the opposite direction of 180 degrees at all times, without force component and without shaking. And the three cylinders are always two cylinders in the same direction, one cylinder is reversed, and there are components, and these components pass through the crankshaft.
and the piston tear each other, forming engine jitter, this jitter is innate, and the four-cylinder engine can easily solve the first-order inertia force through the balance shaft.
Second-order inertial forces. However, the three-cylinder engine cannot solve this dynamic balance through the balance shaft.
Puzzle. Therefore, from the perspective of physical innate nature, the stability of the three-cylinder engine is far inferior to that of the four-cylinder under the same technical strength.
Although the three-cylinder engine is no problem to use, the general perception is that it is shaking, and that is because the first batch of domestic brands to use the three-cylinder engine is Xiali.
Such models, twenty or thirty thousand three-cylinders will definitely have various problems, three-cylinder is an engine with only three cylinder blocks, and the three-cylinder engine is due to the cylinders.
The low structure is relatively simple, with a relatively small body size, light weight, and relatively low cost, relatively easy to maintain.
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Which is more fuel-efficient between three-cylinder and four-cylinder car engine, this is not such a statement, sometimes the three-cylinder engine is more fuel-efficient, and sometimes the four-cylinder engine is more fuel-efficient, mainly depending on the other configurations of the engine, if the exhaust is not good, even if the engine is good, it can not be fuel-efficient, so the main thing is to see whether the three-cylinder engine is better than the four-cylinder, and the four-cylinder engine is not necessarily more fuel-efficient than the three-cylinder engine, I also correct your views here.
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It should be that the four-cylinder is more fuel-efficient, because the engine of the four-cylinder burns more fully and the range is very powerful.
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This is not certain, but it also depends on the power of the car, the fuel consumption of the three-cylinder may be greater than that of the four-cylinder, or it may be smaller than the four-cylinder.
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I think the engine 3 cylinder is more fuel-efficient, more convenient to use, and the fuel consumption is very low. There is no charge for 4 cylinders.
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Hello dear, there are two main advantages of the three-cylinder engine: the first advantage is that the fuel consumption is relatively low, the cylinder is less, the displacement is naturally smaller, and the fuel consumption will also decrease; The second advantage is that it is small and lightweight, and after the small size, the layout of the engine compartment and even the layout of the cockpit can be optimized, and the layout is more flexible compared to the four-cylinder engine.
1. Jitter. Compared to four-cylinder engines, three-cylinder engines have a well-known problem of idle jitter due to design flaws, and it is this that many people are shy away from three-cylinder engines. Models equipped with three-cylinder engines, such as Buick Yinglang, BMW 1 Series and other models, cannot avoid the common problem of shaking.
2. Noise. Noise is also a common problem with three-cylinder engines, and although automakers are trying to reduce noise by adding a soundproof cover to the engine compartment and using materials with better sound insulation in the cockpit, the noise is still clearly felt outside the vehicle.
3. Lack of power.
Although most three-cylinder engines now use turbocharging and direct injection, there will be a lack of torque before the turbine is involved, resulting in a slight weakness at low speeds. In addition, the higher RPM settings can also result in a three-cylinder engine that is not as comfortable and smooth as a four-cylinder engine.
The above is the relevant information brought to you today about the shortcomings of the three-cylinder engine, although the three-cylinder is not as powerful as the four-cylinder, but with the current regulations on displacement are becoming more and more stringent, the four-cylinder engine technology is in a bottleneck period, and the three-cylinder engine is the best choice at present. I wish you a happy life and I hope you can give a thumbs up thank you!
Would the question be too small.
You don't need to change it for a larger one.
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Since the crankshaft and connecting rod piston parts of a three-cylinder engine cannot truly balance the torque, this will cause accelerated wear on the pads of the fixed crankshaft, which is relatively lower than the theoretical life of a four-cylinder engine.
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The three-cylinder engine is not good or bad.
It's just that some brands of OEMs, after using it for a period of time, are gradually canceling the loading rate of three-cylinder engines, and gradually discontinuing the production of three-cylinder engine models.
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In addition to the unique multi-link structure, the VCT 300 is also equipped with Nissan's world's only mass-produced variable compression ratio engine technology, which can intelligently switch between 8:1 and 14:1 to ensure that its power & fuel consumption can be optimized during operation.
The VC-Turbo 300 engine, with a maximum torque of 300N·m, a rated power of 150kW and a fuel consumption of 100 kilometers, is in a leading position in the same class of models.
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1. What about the three-cylinder engine.
We often say that the three-cylinder car refers to the engine has 3 cylinder holes in the cylinder body, which is nothing in itself, but many years ago, when the automobile industry was in the initial stage, it was good to be able to build a car, and the cost had to be considered, therefore, at that time, a large number of models using three-cylinder engines were produced, and the technology of the three-cylinder engine at that time was not mature, so there were often some problems, which brought a bad impression to the majority of consumers.
Nowadays, many people, especially those who have experienced that era, tend to have preconceived ideas, thinking that the three-cylinder engine still has the previous problems, such as large jitter, loud noise, poor power and so on, so is this the case, I think it is not, after decades of development, the shape of the car, the interior has undergone great changes, the engine technology will stagnate, including the three-cylinder engine, with the development of the times, large displacement cars in the emission and environmental protection requirements, more and more difficult to survive, Basically, all car companies are making small displacement models.
There are fewer and fewer displacement models on the market, and the displacement is basically below and below, and some people want to ask, I want to buy low displacement, but I still want to have a little power, what should I do? Of course, the manufacturers have thought about it for you, and the power performance of low-displacement turbocharged engines, such as common three-cylinder engines, is similar to that of self-priming. It can be said that the three-cylinder engine is the development trend, from the Ward top ten and China's top ten engines we are more sure of this development trend, and the award-winning three-cylinder engine can be said to be more and more.
The following points can explain how the three-cylinder engine is and why it is a development trend.
1、**。Enterprises are to make money, the same displacement of the three-cylinder engine ** must be cheaper than the four-cylinder engine, this is undoubted, we buy a car the first concern must be the price of the car, after all, most of them are ordinary people, the development of three-cylinder engine can reduce costs, improve profits, increase the competitiveness of enterprises.
2. Defect improvement.
We know that if you want to develop a three-cylinder engine, you must overcome its defects, otherwise the buyer will not pay, now the manufacturers have a lot of methods, the common ones are to add balance weights, do more sound insulation design, improve the flywheel and other measures to reduce jitter and noise, the effect of buying or test driving must know, in the case of blind testing, there is no distinction between the three-cylinder engine and the four-cylinder engine, we are very concerned about the noise and jitter to do a very good job, as for the power, there is no need to worry, The engine power performance is not lost in any way to the engine.
3. Maintenance costs.
Because the three-cylinder engine is lower than the four-cylinder engine, the structure is simpler than it, so in the later maintenance costs, it is much cheaper, in addition, because the three-cylinder engine is relatively small in size, the weight of the vehicle will also decrease, and the natural fuel consumption is generally lower than the four-cylinder engine.
2. Summary. To sum up, I think the three-cylinder engine can be bought, not only because of its low quality, but also because the power is not weak at all, and finally the cost of maintaining the car in the later stage is relatively low.
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The three cylinders only indicate the number of cylinders in the car's engine and do not represent the quality of the car.
With the same displacement and quality, the 3-cylinder engine is slightly more fuel-efficient than the 4-cylinder engine, but in terms of smooth and stable performance, the 4-cylinder engine is better than the 3-cylinder engine, and the torque comes earlier than the 3-cylinder engine.
Handling, quality, etc., are not evaluated by the number of cylinders.
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The difference between three cylinders and four cylinders, simply put, is whether three cylinders or four cylinders are doing work. The action of the cylinder is half of the work done by suction and lifting, and half of the work is done by compression and pressing. Then the difference between the three-cylinder engine and the four-cylinder engine comes out, the three-cylinder engine is in the mode of 2+1 each work, and the four-cylinder engine is in the mode of 2+2 each time the work is done.
If the inertial force generated by the three-cylinder engine is not counteracted, the jitter will be generated, while the force generated by the four-cylinder engine is balanced, so the jitter is eliminated.
It can be said that although the three-cylinder engine has one less power cylinder than the four-cylinder engine, it is theoretically easier to save fuel, but the jitter of the three-cylinder engine is physically and naturally generated, and the problem of jitter can only be solved through the optimization of engine technology and structure, as well as the elimination of the jitter feeling outside the engine.
Now many car companies have begun to promote three-cylinder engines, the main reason is the cost and fuel consumption requirements. For example, BMW began to install three-cylinder engines on low-end products, and Buick's products also began to install three-cylinder engines on economy cars, and even Geely began to use three-cylinder engines on the facelifted Boyue.
However, due to cost and technical reasons, not every car's three-cylinder engine shake is the same, for example, BMW will use better technology and more materials in order to optimize the three-cylinder engine shake problem, and the economy car because of the low **, naturally can not achieve the same level as BMW, so the three-cylinder engine in different models of the feeling is not the same. Now, the second-hand car of the three-cylinder engine model will drop more price**, so if you consider that you will change the car in the future, it is still recommended to buy the four-cylinder engine model first.
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The three-cylinder car is not bad and can be bought.
The future development trend of three-cylinder engines is to develop in the direction of electrification, intelligence and energy saving. For the engine, other technologies are not mentioned, one less cylinder, the pollution emission generated by the fuel of one cylinder, will naturally come down.
If the engine reduces one cylinder, it will lose a set of cylinders, pistons, connecting rods, valves, etc., and in general, the manufacturing cost will also be reduced.
The three-cylinder engine is excellent in terms of fuel consumption control due to its structural advantages. Engine downsizing makes it smaller, more power dense, and more thermally efficient. The three-cylinder engine will have lower pump gas losses due to structural reasons, and because the cylinder block is smaller, the friction loss during operation will also be smaller, and the corresponding heat dissipation loss will also be reduced.
In the displacement range, because the number of cylinders is less than that of a four-cylinder engine, the single-cylinder volume of a three-cylinder engine with the same displacement is larger, and the power is better at low speeds; The number of cylinders is small, the mechanical friction is small, and the increase in the number of cylinders will reduce the efficiency of a single cylinder. The three-cylinder engine has a faster power response and stronger power performance than the four-cylinder engine.
A three-cylinder engine has less exhaust interference than a four-cylinder engine, and with the small inertia turbo technology, a three-cylinder engine will have better low-rev torque and less turbo lag than a four-cylinder engine.
The small size and light weight of the three-cylinder engine can reduce the overall weight of the vehicle, and the smaller size will also save space in the engine compartment and provide space for electrified components.
On the one hand, the hybrid system is larger, and the compact volume of the three-cylinder engine is more suitable for the hybrid system; On the other hand, a three-cylinder engine is more efficient.
Buick, Chevrolet, BMW these cars are three-cylinder engines, which can solve the problem of vibration, and can also buffer part of the pressure, so it is more stable when driving, but the driving experience is also very good, and it is safer.
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