What is the relationship between the number of cylinders in an engine and the engine speed?

Torque * RPM * n = power.

n is a constant. Power, which is used to describe how much work the engine does. If the power is larger, it proves that the engine is more functional in a unit time, and the more kinetic energy it can provide to the car.

Naturally, the car will run faster. Torsion is used to describe how hard an engine crankshaft turns. For example, if we use a wrench to tighten a screw, if we use more force on the wrench, the more torque will be experienced by the screw, and the less torque will be experienced.

So torsion is used to describe the moment of rotation of a rotating shaft. We can also easily understand its meaning from the unit of torque (N*m). The so-called XX Nm torque is equivalent to applying XX Nm force to a wrench with a length of 1 m to tighten the screw, and the screw is subjected to the torque of XX Nm and begins to rotate.

This means that the more torque you have, the more traction you can give to the car, and according to Newton's laws, it is easy to conclude that the more torque the engine, the faster the car accelerates and the more it can drag.

The unit of rotational speed, which we usually describe as xx revolutions, is minutes. This means that the crankshaft makes xx revolutions per minute. Therefore, with the same gear, the engine speed increases, and the speed of the car also increases.

After understanding the torque and speed, let's analyze the relationship between torque, speed, and power through the above formula.

As you can see from the above equation, power is the product of torque and rotational speed. And the power of the engine is determined by the energy. The more energy emitted by the gasoline burned in the cylinder under the same engine conditions, the more power it will have.

Therefore, the power of the engine with a large displacement is very large, because the larger the engine displacement, the more gasoline and air are drawn into the cylinder, and the more energy is released from combustion.

Therefore, the power of an engine depends on the size of the displacement and the ability of the engine to convert the thermal energy generated by combustion into mechanical energy. From the above formula, it can be analyzed that in the case of a certain power, the greater the torque, the lower the speed; The lower the torque, the higher the speed. With this feature, we can tune the car's engine according to the car's purpose.

If I need the car to be fast, I can make the engine rpm higher when I design and tune it, but then the torque will go down, so the acceleration will be reduced.

Is there a direct relationship between the cylinder of the car engine and the speed of the engine?

Generally speaking, the number of cylinders of the engine is not directly related to the speed of the engine, the number of revolutions of a work cycle crankshaft of a four-stroke engine is equal to 2 times the number of cylinders, while the number of revolutions of a two-stroke engine is equal to the number of cylinders when the whole engine completes a work cycle crankshaft is equal to the number of cylinders! 1. For an engine with the same number of cylinders and displacement, regardless of individual defects and the length of use, the speed should theoretically be the same under the premise of the same instantaneous fuel consumption, but the actual experimental results will not be the same due to the influence of individuals;

2. For two engines with the same displacement but different number of cylinders, because the work interval angle of the two cylinders of the engine with more cylinders is smaller than that of the two work interval angles with fewer cylinders, the engine speed with more cylinders is higher, and the mu is quiet.

3. The engine with a small number of cylinders but a large displacement and an engine with a large number of cylinders but a small displacement cannot be compared!

Hello, no direct relationship. The number of cylinders commonly used in automobile engines is cylinders. For BMW, a 4-cylinder engine is commonly used for engines with a displacement of less than 2 liters (now it is generally a 3-cylinder engine for Zhite), a 6-cylinder engine for about liters, a V8-cylinder engine for about liters, and a V12-cylinder engine for more than 5 liters.

Generally speaking, under the same cylinder diameter, the more cylinders, and the larger the displacement of the sudden start, the higher the power; At the same displacement, the more cylinders, the smaller the bore, and the corresponding increase in speed, resulting in greater power.

The number of cylinders has nothing to do with engine speed.

Generally speaking, the number of cylinders of the engine is not directly related to the speed of the engine, the number of turns of a work cycle crankshaft of the whole four-stroke engine is equal to 2 times the number of cylinders, and the number of turns of the crankshaft of the whole engine is equal to the number of cylinders! Therefore, 1. For an engine with the same number of cylinders and displacement, the speed should theoretically be the same under the premise of the same instantaneous fuel consumption, regardless of individual defects and the length of use, but the actual experimental results will not be the same due to the influence of individuals;

2. Two engines with the same displacement but different number of cylinders, because the work interval angle of the two cylinders of the engine with more cylinders is smaller than that of the two work interval angles with fewer cylinders, so the engine speed with more cylinders is higher, 3. The engine with a small number of cylinders but a large displacement and an engine with a large number of cylinders but a small displacement cannot be compared!

There is no direct relationship. The number of cylinders commonly used in automobile engines is cylinders. For BMW, 4-cylinder engines with a displacement of less than 2 liters are commonly used (now it is generally 3 cylinders), 6-cylinder engines are generally used for about liters, V8 cylinders for about liters, and closed-hole V12-cylinder engines for more than 5 liters.

Generally speaking, under the same cylinder diameter, the more cylinders, the larger the amount of branching stoves, and the higher the power; At the same displacement, the more cylinders, the smaller the bore, and the corresponding increase in speed, resulting in greater power.

The four-stroke four-cylinder engine does work once the engine output shaft rotates twice, the number of cylinders and the speed is not absolutely related, the speed is determined by the number of turns of the camshaft rotation: 1. The engine is composed of two major mechanisms, the crank connecting rod mechanism and the valve distribution mechanism, as well as five major systems such as cooling, lubrication, ignition, fuel for Lao Huai, and starting system, and the main defense and transportation components are cylinder block, cylinder head, piston, piston pin, connecting rod, crankshaft, flywheel, etc. The working chamber of a reciprocating piston internal combustion engine is called a cylinder, and the inner surface of the cylinder is cylindrical;

2. The piston that makes reciprocating motion in the cylinder is hinged with one end of the connecting rod through the piston pin, and the other end of the connecting rod is connected with the crankshaft, and the crankshaft is supported by the bearing on the cylinder body, which can rotate in the bearing to form a crank connecting rod mechanism;

3. When the piston is reciprocating in the cylinder, the connecting rod pushes the crankshaft to rotate. On the contrary, when the crankshaft rotates, the connecting rod journal moves in a circular motion in the crankcase, and the piston is driven up and down in the cylinder by carrying the beam through the connecting rod. Every time the crankshaft rotates, the piston runs up and down once, and the volume of the cylinder is constantly changing from small to large, and then from large to small, and so on.

4. The top end of the cylinder is closed with a cylinder head. The cylinder head is equipped with intake and exhaust valves. By opening and closing the intake and exhaust valves, the cylinder is filled and the cylinder is vented.

The opening and closing of the intake and exhaust valves are driven by camshafts. Camshafts are driven by a crankshaft through toothed belts or gears.

Millions of car purchase subsidies.

For family cars, the bore and stroke determine whether the engine is biased towards performance or fuel consumption. But in essence, engineers want to pursue performance, so they use large bore short strokes. In pursuit of low fuel consumption, the use of small bore and large stroke.

The small diameter of the cylinder and the large stroke can reduce fuel consumption. Nowadays, most family cars have a smaller cylinder diameter than the stroke, which is conducive to improving fuel economy. It can be understood from the following aspects:

1.The long-stroke engine provides a good mix of fuels in the low speed range. Therefore, at the same speed, the longer the stroke, the faster the piston and the more intense the intake air flow moves.

It can promote fuller and faster evaporation and mixing of fuels. As a result, long-stroke engines can achieve good combustion and emissions in the low rpm range. However, driving at low speeds is more fuel-efficient in most operating conditions.

2.The stroke is long, the work time of the combustion expansion of the mixture is longer, and the utilization rate of combustion energy is higher. The longer the stroke of the engine piston and the longer the running distance, the better the use of combustion pressure and thus the improvement of thermal efficiency.

So it's more fuel-efficient. 3.Low-speed torque has an advantage.

The long-stroke engine can output more torque, and the high gear and low revs can be used as much as possible to reduce fuel consumption during driving. Short stroke, large bore more pursuit of power and performance, mainly in the following two aspects: 1

The large intake valve is good for improving the intake efficiency at high speeds. The large intake valve can appropriately improve the intake efficiency at high speeds. 2.

Good high-speed performance and sensitive response. Due to the shorter piston running distance and lower piston running speed of short-stroke engine, it is easy to reach high speed and the speed response is more sensitive. In general, most of today's engines are designed with long strokes, but considering individual needs, choosing the right engine design can meet different needs.

The landlord asked this question very well Upstairs said so much I don't think I got to the point First of all, the displacement is large, the cylinder is more, the horsepower is right, but the horsepower is not equal to the speed, f1 Although the displacement is small, the eight-cylinder but the technology is advanced, and it can reach more than 10,000 speeds, but it is certain that the torque directly output by the engine is not as high as Bugatti, and the torque is increased by the gearbox, so it is so fast To put it bluntly, the displacement size of the cylinder and the speed can be converted between the large displacement and more cylinders are equal to the high horsepower**The speed can not be high, but the torque is high) The mobile phone replied Tired.

The performance of the engine depends on the coordination of all peripheral components.

1.The sound is generally more related to the exhaust system, but it is also related to the performance orientation, such as the sound of a car that pursues high rpm and low torque.

2.Horsepower is the power output of the engine, and it is related to many factors such as engine displacement, intake pressure, fuel injection volume, fuel injection pressure, ignition timing, camshaft angle, throttle opening timing, exhaust smoothness, speed and many other factors.

3.Horsepower is a unit used to measure horsepower.

4.Speed Theoretically, the greater the horsepower, the higher the top speed, but also consider factors such as wind resistance and vehicle weight5The engine has 4 strokes, the more cylinders, the more pistons in the power stroke at the same time, the better the smoothness of the output, but it does not mean that the more horsepower, the two have nothing to do Hope to be able to help you Hope to adopt.

The size of the horsepower is also related to the tuning of the engine, and the horsepower of the same engine may be different when used in different cars. It is obviously not appropriate for you to compare civilian engines with F1 engines, which are specially tuned. Secondly Bugatti's W16, do you know that those are two V8s?

The 300C's V8 is naturally aspirated, while Bugatti's two V8s are turbocharged, so should you be clear?

Displacement refers to the sum of the total volume of each cylinder, horsepower is the power has a certain conversion ratio, the number of cylinders is the working cylinder of the engine, and the speed is the rotation of the crankshaft.

If the air-fuel ratio is the same, of course, the larger the total cylinder volume of the engine, the more powerful it is. Because of the large displacement, the air intake is more, and the oil is sprayed more.

Must be the same form of engine comparison. It is also a naturally aspirated engine with a large volume and high power. Naturally aspirated and turbocharged are hard to say. Volkswagen is more powerful than naturally aspirated engines.

No, it is the volume of space that determines the power of the engine when the piston moves.

Cylinder volume is actually displacement. This sentence can be put in another way, the larger the displacement, the more power it has.

In fact, this is completely wrong. The power of the car is also related to the bore and stroke.

Cylinder volume = pix (bore 2) squared x stroke.

For cars with the same displacement, the bore and stroke may be different, but the cylinder volume is the same. The power of the stroke is small and the torque is large, and the power of the stroke is large and the torque is small.

Another simple example, the Toyota engine, the displacement engine codenamed 2gr, and the displacement engine of 1gr. The cylinder volume is obviously large, but the power is really large, 2gr 277 hp, 1gr, 244 hp.

The higher the number of cylinders, the smoother the operation, depending on the demand, such as the cabin layout, the more difficult it is.

The more cylinders, the more stable, the higher the fuel consumption, the more powerful the power, and the faster the speed.

Hello owner, from the grade of the car, it is right.

The more engine cylinders, the more stable the vehicle will be when working, and the engine will not produce large shock vibrations, if the number of cylinders is too small, the vehicle will have a "bang" vibration like a tractor. Also, the more cylinders there are, the faster the car accelerates and the more fuel it consumes.

In the case of the same cylinder size, the more cylinders, the larger the displacement and the higher the output.

The power output of the car depends on the engine. The engine adds fuel and air vapor to the cylinder, which is retracted by the piston, and then ignites and detonates to produce power to push the piston and generate power.