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You can refer to the contents of the World Aircraft Manual and Engine ManualTransport.
The thrust-to-weight ratio of the engine is about 14 tons, the thrust of the current DP30 is about 14 tons, and the maximum take-off weight of the Y-20 is about 220 tons, if it is replaced by WS20, according to the thrust of 18-20 tons, the maximum take-off weight can reach 280-300 tons, the fuselage can be extended, and the maximum carrying capacity can reach about 50 tons.
Motor. It is a type of energy that can convert other forms of energy into mechanical energy.
Machines such as internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines.
steam engines, etc.), jet engines, electric motors, etc. For example, the internal combustion engine usually converts chemical energy into mechanical energy. The engine is suitable for both power generation units.
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You can refer to the content of the world's aircraft manuals and engine manuals, and the thrust-to-weight ratio of transport aircraft engines is around.
The thrust of the current DP30 is about 14 tons, and the maximum take-off weight of the Y-20 is about 220 tons.
If you change to WS20, the maximum take-off weight can reach 280-300 tons based on a thrust of 18-20 tons.
The body can be extended, and the maximum carrying capacity can reach about 50 tons.
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Ship 20The engine is domestic. This engine is a turbofan developed on the basis of the "Taihang" engine.
20 large bypass ratio turbofan engine, the engine will be mainly used for Y-20 large transport aircraft base shouting.
In the future, it can also be used as the main power for large passenger aircraft, new twin-engine medium transport aircraft, and second-generation long-range anti-submarine patrol aircraft.
in the power system.
In terms of the Y-20 prototype, the Y-20 prototype will use imported Russian D-30KP2 engines, followed by turbofan 18 engines imitated by Chengdu Engine.
Advantages of the Ship 20 engine
Its nacelle hoisting layout can reduce the volume and weight of the voyage, and has a practical effect on increasing the carrying capacity of the Y-20. In addition, its full-authority digital control system "FADEC" uses sensors full of aviation engines to collect engine conditions, and then adjust fuel consumption and engine nozzles in real time to achieve the purpose of reducing fuel consumption.
The WS-20 can only solve the problem of fuel consumption, so that the Y-20 can go further on the existing basis, but it cannot fundamentally solve the problem of engine power. Because the WS-20 is essentially an imitation of the CFM56-7 core aircraft, the outside world speculates that its level is 13-16 tons, so the take-off weight of the Y-20 is limited by the engine thrust, and it is impossible for Bo Fan Ye to have a greater increase, resulting in the cabin volume can not be fully utilized.
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At present, the Y-20 still uses the D-30KP-2 engine that is imported from Russia, and it will definitely be replaced with a domestic engine in the future.
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Ship 20The engine was a domestic turbofan-20 (WS-20).
The Turbofan-20 (WS-20) is a large bypass ratio turbofan engine with a thrust range of 13,000 to 16,000 kilogram-force (kgf). This engine is China's "Taihang" engine based on the self-developed turbofan-20 large bypass ratio turbofan engine, the engine will be mainly used for the Y-20 large transport aircraft.
In the future, it can also be used as a large passenger aircraft.
The new twin-engine mid-range transport aircraft, a long-range stealth bomber with a flying wing layout and a second-generation long-range anti-submarine patrol aircraft.
The main motivator.
As a large multi-purpose transport aircraft, the aircraft can perform long-distance air transportation tasks of various materials and personnel under complex meteorological conditions. withChinese Air ForceCompared with the current Il-76, the Y-20's engine and electronic equipment have been greatly improved, the load capacity has also been increased, and the short runway take-off and landing performance is excellent.
The Y-20 aircraft was developed with reference to the aerodynamic shape and structural design of the Russian Il-76.
Incorporating some of the features of the American C-17. The Y-20 adopts a conventional layout, with a cantilevered upper wing, a leading edge sweep, and wingletless winglets, which has high extensibility, high reliability and safety. As a large multi-purpose transport aircraft, the Y-20 can perform long-distance air transportation tasks of various materials and personnel under complex meteorological conditions.
It's too late to believe.
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The Y-20 engine is domestic. It is the Chinese Ether Engine.
Based on the self-developed turbofan.
20 large bypass ratio turbofan engine. The automobile engine is the device that provides power for the car, and it is also the heart of the car, which determines the power, economy, stability and environmental protection of the car.
A generalization of a car engine.
The automobile engine is the device that provides power for the car, is the heart of the car, and determines the power, economy, stability and environmental protection of the car. According to different power**, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle motors, and hybrids.
Common gasoline engines and diesel engines belong to reciprocating piston internal combustion engines, which convert the chemical energy of fuel into mechanical energy of piston movement.
And output power to the outside world. The gasoline engine has high speed, small quality, low noise, easy starting, and low manufacturing cost; The diesel engine has a large compression ratio, high thermal efficiency, and better economic performance and emission performance than the gasoline engine. Hope.
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1. The Yun-20 engine is domestic.
2. The turbofan-20 (WS-20) is a large bypass ratio turbofan engine with a thrust range of 13,000 to 16,000 kilogram-force (kgf). This engine is based on China's "Taihang" engine, self-developed turbofan-20 large bypass ratio turbofan engine, the engine will be mainly used for Y-20 large transport aircraft, in the future, can also be used as a large passenger aircraft, a new twin-engine medium-sized transport aircraft, flying wing layout long-range stealth bomber and the second generation of long-range anti-submarine patrol aircraft main power.
3. In terms of power system, the Y-20 prototype will use the imported Russian D-30KP2 engine, and then the turbofan 18 (WS-18, D-30KP2 imitation model) engine imitated by Chengdu Engine will be used.
4. The performance of WS-18 in all aspects should be similar to that of CFM-56, with a weight of 2000 kg, while the weight of the D-30KP used by Il-76 is 2300 kg, especially the fuel consumption of the former is 20% lower than that of the latter. In this way, with the same fuel load, the range of the domestic military large transport aircraft is obviously greater than that of the Il-76. Or for the same voyage, the carrying capacity is more than that.
5. WS-18 engine has a single thrust of 1,000 Newtons, with a clamshell reversing thrust device. In the end, the supporting engine of the Y-20 transport aircraft will be a turbofan-20 (WS-20) engine, with a single thrust of about 160 kN.
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