There are two common classification principles of aircraft engines: the principle of whether the air participates in the engine work and the principle that the engine generates propulsion power.
The principle of the aircraft engine is to inhale air, compress the air and mix it with fuel to produce high-temperature and high-pressure gas, and then convert the energy of gas into mechanical energy through the turbine to drive the aircraft forward. Specifically, aircraft engines are usually composed of intake ducts, compressors, combustion chambers, turbines and nozzles.
The working principle of the fighter turbofan jet engine The structure of the modern turbojet engine is composed of an intake duct, compressor, combustion chamber, turbine and tail nozzle. There is also a force combustion chamber between the turbine and tail nozzle of the fighter.
Advantages of turbofan engine: large thrust, high propulsion efficiency, low noise, low fuel consumption, The plane has a long range. Disadvantages: The fan has a large diameter and a large windward area, so the resistance is large, the engine structure is complex, and the design is difficult.
Vortex spray: the most basic, simple structure, small diameter, so the wind resistance is small. A large amount of heat is discharged from the tail nozzle if it is not used, which is fuel-consuming.Turboprop: Between the turboproper and the piston propeller, a free turbine is added after the turbine to drive the propeller to rotate, improve fuel utilization and save fuel.
Compared with the turbofan engine, the fuel economy of the turbojet engine is worse, but the high-speed performance is better than that of the turbofan, especially the high-speed performance. Basic parameters thrust-to-weight ratio: Thrust to weight ratio represents the ratio of engine thrust to the weight of the engine itself. The larger the performance, the better.
1. The turbine fan engine is the mainstream engine of civil aviation passenger aircraft at present. It generally adopts a high duct ratio (the ratio of the air flow of the connotation channel to the outer culvert) engine. Compared with the turbojet engine, this engine is more fuel-efficient. The propulsion efficiency in the subsonic state is higher than that of the turbojet engine, and the noise is low.
2. Civil airliners generally use turbofan engines, and fighter jets generally use turbojet engines. Both are jet engines. Among the two engines, turbine refers to the use of high-pressure gas to drive the turbine and then drive the compressor.
3. Piston propeller engine: that is, the engine of old-fashioned aircraft before World War II, relying on the piston to drive the propeller to rotate through the crankshaft, and it cannot reach supersonic speed. It is basically extinct now. It is only used by a few small civilian aircraft. This kind of engine uses aviation gasoline at the lowest cost.
4. Yes, Chinese passenger aircraft are generally imported from abroad, and now there are very few turbine jet engines. At present, it is known that the J8 is still in use.
5. The vortex fan now used in f22 in the United States is now capable of supersonic cruising without force.
6. Once the A380 is put into service, it will become the civil aircraft with the largest payload in aviation history. The original range of the model is 7,650 nautical miles to 8,000 nautical miles, and the range is planned to be expanded in the future, so it needs a reliable new thrust class (about 310 to 340 kN) aviation engine. .
Usually, the engine is naturally aspirated by NA, and there is an air filter in front of the air intake. After changing the turbocharge, a larger flow of air flow is required, so a larger caliber air filter is needed, which is the so-called winter mushroom head.
Different characteristics. Turbine engines are usually used in aerospace and navigation, and piston engines are usually used in the ground and navigation. Piston engines are characterized by high thermal efficiency (rely to turbine engines), large output torque and fast start-up, so they are suitable for ground.
The structure of the turbine/rocket engine is similar to that of the turbine/stamping jet engine. An important difference is that it prepares its own oxygen for combustion.This engine has a multi-stage turbine-driven low-pressure compressor, and the power that drives the turbine is generated by burning fuel and liquid oxygen in a rocket combustion chamber.
Different definitions (1) A turbojet engine is a kind of turbine engine. It is characterized by completely relying on gas flow to generate thrust. It is usually used as the power of high-speed aircraft, but the fuel consumption is higher than that of the turbine fan engine.
Car engines only increase the air intake, which in turn increases efficiency. The engine is still a piston.
Aircraft powered by turboprop engine. The fuel consumption rate is low. It is suitable for medium-speed (below 800 to 900 km/h) long-distance flight. Passenger aircraft, transport aircraft, coastal patrol aircraft and anti-submarine aircraft are mostly turboprop aircraft.
In terms of application, turboprop engines are suitable for long-flying drones at medium and high altitudes. Turboprop engine is a gas turbine engine commonly used in airplanes.
Turboprop engines are mainly used for aircraft with a speed of less than 800 kilometers per hour; turboshaft engines are mainly used as power for helicopters; turbine fan engines are mainly used for faster aircraft; turbojet engines are mainly used for supersonic aircraft.
The turbofan engine is mainly used in: civil aircraft. For example: Boeing 74737 and Airbus A380 and other civil aircraft.
Used for old-fashioned or light helicopters, old-fashioned or light propeller fixed-wing aircraft, power parachutes, rotorcraft, hovercraft, armored vehicles, etc.) It is characterized by simple manufacturing and maintenance technology, cheap, economical, and widely used in civil use.Two. Jet: Gas turbine engines are divided into five categories.
How to implement JIT with global data-APP, download it now, new users will receive a novice gift pack.
There are two common classification principles of aircraft engines: the principle of whether the air participates in the engine work and the principle that the engine generates propulsion power.
The principle of the aircraft engine is to inhale air, compress the air and mix it with fuel to produce high-temperature and high-pressure gas, and then convert the energy of gas into mechanical energy through the turbine to drive the aircraft forward. Specifically, aircraft engines are usually composed of intake ducts, compressors, combustion chambers, turbines and nozzles.
The working principle of the fighter turbofan jet engine The structure of the modern turbojet engine is composed of an intake duct, compressor, combustion chamber, turbine and tail nozzle. There is also a force combustion chamber between the turbine and tail nozzle of the fighter.
Advantages of turbofan engine: large thrust, high propulsion efficiency, low noise, low fuel consumption, The plane has a long range. Disadvantages: The fan has a large diameter and a large windward area, so the resistance is large, the engine structure is complex, and the design is difficult.
Vortex spray: the most basic, simple structure, small diameter, so the wind resistance is small. A large amount of heat is discharged from the tail nozzle if it is not used, which is fuel-consuming.Turboprop: Between the turboproper and the piston propeller, a free turbine is added after the turbine to drive the propeller to rotate, improve fuel utilization and save fuel.
Compared with the turbofan engine, the fuel economy of the turbojet engine is worse, but the high-speed performance is better than that of the turbofan, especially the high-speed performance. Basic parameters thrust-to-weight ratio: Thrust to weight ratio represents the ratio of engine thrust to the weight of the engine itself. The larger the performance, the better.
1. The turbine fan engine is the mainstream engine of civil aviation passenger aircraft at present. It generally adopts a high duct ratio (the ratio of the air flow of the connotation channel to the outer culvert) engine. Compared with the turbojet engine, this engine is more fuel-efficient. The propulsion efficiency in the subsonic state is higher than that of the turbojet engine, and the noise is low.
2. Civil airliners generally use turbofan engines, and fighter jets generally use turbojet engines. Both are jet engines. Among the two engines, turbine refers to the use of high-pressure gas to drive the turbine and then drive the compressor.
3. Piston propeller engine: that is, the engine of old-fashioned aircraft before World War II, relying on the piston to drive the propeller to rotate through the crankshaft, and it cannot reach supersonic speed. It is basically extinct now. It is only used by a few small civilian aircraft. This kind of engine uses aviation gasoline at the lowest cost.
4. Yes, Chinese passenger aircraft are generally imported from abroad, and now there are very few turbine jet engines. At present, it is known that the J8 is still in use.
5. The vortex fan now used in f22 in the United States is now capable of supersonic cruising without force.
6. Once the A380 is put into service, it will become the civil aircraft with the largest payload in aviation history. The original range of the model is 7,650 nautical miles to 8,000 nautical miles, and the range is planned to be expanded in the future, so it needs a reliable new thrust class (about 310 to 340 kN) aviation engine. .
Usually, the engine is naturally aspirated by NA, and there is an air filter in front of the air intake. After changing the turbocharge, a larger flow of air flow is required, so a larger caliber air filter is needed, which is the so-called winter mushroom head.
Different characteristics. Turbine engines are usually used in aerospace and navigation, and piston engines are usually used in the ground and navigation. Piston engines are characterized by high thermal efficiency (rely to turbine engines), large output torque and fast start-up, so they are suitable for ground.
The structure of the turbine/rocket engine is similar to that of the turbine/stamping jet engine. An important difference is that it prepares its own oxygen for combustion.This engine has a multi-stage turbine-driven low-pressure compressor, and the power that drives the turbine is generated by burning fuel and liquid oxygen in a rocket combustion chamber.
Different definitions (1) A turbojet engine is a kind of turbine engine. It is characterized by completely relying on gas flow to generate thrust. It is usually used as the power of high-speed aircraft, but the fuel consumption is higher than that of the turbine fan engine.
Car engines only increase the air intake, which in turn increases efficiency. The engine is still a piston.
Aircraft powered by turboprop engine. The fuel consumption rate is low. It is suitable for medium-speed (below 800 to 900 km/h) long-distance flight. Passenger aircraft, transport aircraft, coastal patrol aircraft and anti-submarine aircraft are mostly turboprop aircraft.
In terms of application, turboprop engines are suitable for long-flying drones at medium and high altitudes. Turboprop engine is a gas turbine engine commonly used in airplanes.
Turboprop engines are mainly used for aircraft with a speed of less than 800 kilometers per hour; turboshaft engines are mainly used as power for helicopters; turbine fan engines are mainly used for faster aircraft; turbojet engines are mainly used for supersonic aircraft.
The turbofan engine is mainly used in: civil aircraft. For example: Boeing 74737 and Airbus A380 and other civil aircraft.
Used for old-fashioned or light helicopters, old-fashioned or light propeller fixed-wing aircraft, power parachutes, rotorcraft, hovercraft, armored vehicles, etc.) It is characterized by simple manufacturing and maintenance technology, cheap, economical, and widely used in civil use.Two. Jet: Gas turbine engines are divided into five categories.
Real-time customs clearance alerts
author: 2024-12-23 22:00HS code-based broker fee negotiations
author: 2024-12-23 20:58Automotive supply chain transparency tools
author: 2024-12-23 20:53Shipping lane performance metrics
author: 2024-12-23 23:08Global trade index visualization
author: 2024-12-23 22:11Trade data for metal commodities
author: 2024-12-23 22:04294.29MB
Check546.56MB
Check137.41MB
Check643.19MB
Check786.18MB
Check414.13MB
Check196.43MB
Check673.62MB
Check457.24MB
Check295.76MB
Check973.53MB
Check173.41MB
Check985.26MB
Check991.89MB
Check893.15MB
Check341.81MB
Check666.27MB
Check915.91MB
Check924.47MB
Check775.38MB
Check995.61MB
Check615.22MB
Check133.25MB
Check582.95MB
Check737.93MB
Check853.19MB
Check464.26MB
Check198.87MB
Check379.67MB
Check628.96MB
Check653.73MB
Check435.54MB
Check397.13MB
Check126.61MB
Check252.64MB
Check845.25MB
CheckScan to install
How to implement JIT with global data to discover more
Netizen comments More
641 Agricultural machinery HS code lookups
2024-12-23 23:27 recommend
1121 HS code mapping to product categories
2024-12-23 23:14 recommend
2841 West African HS code trade guides
2024-12-23 21:52 recommend
461 HS code tagging in tariff databases
2024-12-23 21:23 recommend
2917 Best Asia-Pacific trade analysis
2024-12-23 21:06 recommend