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Structure of ramjet engine
The publisher:admin Release time:2015-4-15 9:35:10 Reading:66Time

    Structure is simple, the ramjet engine thrust to weight ratio, light weight, low cost. But because there is nocompressor, can not start in the static condition, so should not be used as ordinary aircraft power plant, and often with other engine coordination use, a combined power plant. Such as the ramjet and rocket enginecombination ,  ramjet  and  turbojet or turbofan engine combination. Installation of combined power plant  onaircraft , rocket engines, turbojet or turbofan engine during takeoff, the flight speed is enough to make the normal work of ramjet engine, and then use the ramjet engine with closed work; during the landing phase,when the aircraft flight speed reduced to ramjet engine is not working properly again, starting with the engine. If the ramjet engine as power device of an aircraft when used alone, the vehicle must be carried by other aircraft into the air with a certain speed, can press after starting the engine running. Ramjet engine orcombined ramjet engine for missiles and supersonic or subsonic target drone.

    Working principle

    Ramjet engine has three main components -- the diffuser, combustion chamber and nozzle. Although it onlyconsists of three pipeline very simple shaped components, but it can be a very large thrust, and increase the thrust with the flight speed increases rapidly. For example, a cross section of only 1 square meters of theramjet engine at 11 km altitude, with the speed of 3.5 times the speed of sound (M=3.5), the flight can produce thrust is about 30000 kg (30 tons). Then it promote the power to 414000 horsepower, which is equivalent to 200 of the power of locomotive. If in the low altitude flight, as the density of air power to increase. The engine has multiple? Up to no more than 1 tons. From here we can see strong work ability.

    Because it has such excellent characteristics -- thrust, light weight, so it is suitable for high speed flight. The current maximum speed is about 4 times the speed of sound (equivalent to 4400 km / h), the height of up to 30 km. But this is not the limit value, estimation of its flight altitude, speed and improve the.

 
 

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