What is the rotational speed of an airliner engine? 5

Civil aircraft turbofan engines have two rotors, so there are two speeds. The speed of the low-pressure rotor is called N1 speed, and the speed of the high-pressure rotor is called N2 speed. Both rpm pilots need to be monitored.

The engine speed is not the same for different models. Generally, the N2 speed is above 10,000 rpm, and the N1 speed is several thousand. For example, the common Boeing 737-800 aircraft uses the CFM56 7B engine with the following speeds:

n1 at 5,380 rpm** min). N2 rpm 15,183 rpm.

The world's largest civil aircraft engine, the Boeing 777's GE90 engine speed: N1 speed 10396rpm.

The speed of the engine of the passenger plane is about the same as that of the car, depending on the driving habits.

The general aviation piston engine is the maximum 10,000 rpm, and the civil turbofan engine is 30,000.

For example, the common Boeing 737-800 aircraft uses a CFM56 7B engine with an N1 rpm of 5,380 rpm** min). N2 rpm 15,183 rpm.

1. The maximum speed of the general aviation piston engine is 10,000 rpm, and that of the civil turbofan engine is 30,000. Turbojet engines work by the reverse thrust of the jet, and only the compressor has to turn to compress the air. The turboprop engine relies on the turbine to drive the propeller to work, the speed of the turbine is about 10,000 rpm, and the speed of the propeller is about 1,000 rpm.

The turbofan engine rotates at around 8,000 rpm.

2. The turbojet engine is the most commonly used mainstream engine for fighter jets, the engine is injected backward through the high-temperature gas generated, and then the engine is reversed to promote the aircraft to fly, one of the advantages of this engine is that it can bring extremely high flight speed, which is exactly what the fighter needs.

Civil aircraft turbofan engines have two rotors, so there are two speeds. The speed of the low-pressure rotor is called N1 speed, and the speed of the high-pressure rotor is called N2 speed. Both rpm pilots need to be monitored.

The engine speed is not the same for different models. Generally, the N2 speed is above 10,000 rpm, and the N1 speed is several thousand. For example, the common Boeing 737-800 aircraft uses the CFM56 7B engine with the following speeds:

n1 at 5,380 rpm** min). N2 rpm 15,183 rpm.

The world's largest civil aircraft engine, the Boeing 777's GE90 engine speed: N1 speed 10396rpm.

The general aviation piston engine is the maximum 10,000 rpm, and the civil turbofan engine is more than 30,000.

What you said must be the diesel engine of construction machinery, the diesel engine has a rate regulation, generally 8%, the maximum power speed is also called the rated speed, with the rated speed x speed adjustment rate plus the rated speed is the highest speed, the industry is called high idle speed, that is, the speed when the engine torque output is 0. According to the parameters you provide, it should be 2200 * 8% + 2200 = 2376, but we generally do engine tests according to less than or equal to 2460. The general is 2400-2420rpmNote that this is a parameter on the bench, after being installed on the car, due to the load, such as torque converter or gearbox, etc., the actual maximum speed is the load output, which will generally be less than the calculated value.

The rated speed is the specified speed, and the speed is not allowed to be exceeded;

And the maximum speed is its ultimate speed.

Rated speed: refers to the speed of the motor at the rated power. That is, the speed of the motor when it is fully loaded, so it is also called the speed of full load. It is represented by the symbol "n" and is in "conversion points".

Synchronous speed of the motor = 60 * frequency number of pole pairs.

8-pole: 60*50 4=750 rpm, the asynchronous speed is slightly reduced by about 735 rpm.

6 poles: 60 * 50 3 = 1000 rpm, the asynchronous speed is slightly reduced by about 980 rpm.

4-pole: 60*50 2=1500 rpm, the asynchronous speed is slightly reduced by about 1475 rpm.

2-pole: 60*50 1=3000 rpm, the asynchronous speed is slightly reduced by about 2970 rpm.

The speed of a small aircraft engine is generally 2000 to 20000.

Small aircraft use piston engines, and turbofans generally cruise at 10,000 revolutions per minute. With the increase of rotation speed and the increase of centrifugal force, the fracture of the blade is difficult to solve.

The aero-engine is a highly complex and precise thermodynamic machine with cavities, which provides the power required for aircraft to fly. As the heart of the aircraft, it is known as the "flower of industry", which directly affects the performance, reliability and economy of the aircraft, and is an important embodiment of a country's scientific and technological, industrial and national defense strength. At present, only a few countries in the world can independently develop high-performance aero engines, such as the United States, Russia, the United Kingdom, and France, and the technical threshold is very high.

Fixed-wingaircraft refers to an aircraft with wings and one or more engines that is propelled by its own power, and can be denser than air in space or the atmosphere. If the density of the aircraft is less than air, then it is a balloon or an airship. If there is no power unit and can only glide in the air, it is called a glider.

If the wing of the aircraft is not fixed, it is a *** or gyrocopter if it relies on the rotation of the wing to generate lift. Fixed-wing aircraft are the most common aircraft type. Power** includes piston engines, turboprops, turbofan engines or rocket engines, among others.

At the beginning of the 20th century, the Wright brothers of the United States made significant contributions to the history of aircraft development in the world. In 1903, the first manned flight under its own power, the "Flyer I", was built and successfully tested. They were awarded the U.S. Congressional Honor Award in 1909.

In the same year, they founded the "Wright Aircraft Company". Since the invention of airplanes, airplanes have increasingly become an indispensable means of transportation for modern civilization. It profoundly changed and affected people's lives, and opened the history of people's conquest of the blue sky.

At present, the highest speed used in the vehicle should be accompanied by the F1 engine. The engine of an Formula 1 car has about 900 moving parts and can rev at a top speed of 19,000 rpm, while the top speed of a normal car engine usually does not exceed 8,000 rpm.

When the engine of an Formula 1 car is running at maximum speed, the spark plugs are ignited 150 times per second, the pistons reciprocate 300 times, and the acceleration is up to 8,500g. Today, the most powerful engine in the F1 field has exceeded 900 horsepower, which is about 10 times the power of the civilian 1600cc displacement engine, and 4 times the motivation of the civilian 3000cc displacement engine.

Its mass does not exceed 100kg, while the mass of a normal 1600cc engine exceeds 120kg.

But now because the limit is 19,000, if there is no limit, it can reach 22,000.