Mode-switchable solid combined engine and missile

Abstract

The invention discloses a mode-switchable solid combined engine and a missile. The mode-switchable solid combined engine comprises a gas generating assembly, a combustion chamber, a ramjet after-burning chamber and a tail spray pipe which are sequentially connected, wherein a containing cavity capable of accommodating an oxygen-enriched electric control solid propellant and an oxygen-lean electriccontrol solid propellant is arranged in the gas generating assembly, and an air inlet channel capable of opening and closing is arranged on the ramjet after-burning chamber. By arranging the gas generating assembly and the ramjet after-burning chamber simultaneously, and the air inlet channel capable of opening and closing is arranged on the ramjet after-burning chamber, so that the advantages ofhigh specific impulse and long range of a ramjet engine are achieved while the advantages of high maneuvering flight of a rocket engine is reserved, and the missile has the characteristics of supersonic cruise and high maneuvering flight.

Description

technical field [0001] The invention relates to the technical field of combination engines, in particular to a mode-switchable solid combination engine and missiles. Background technique [0002] Commonly used missile power systems include rocket engines and ramjet engines, and the propellants used include solid propellants and liquid propellants. The engine using solid propellant has become the preferred power device for missile weapons due to its advantages of simple structure, convenient use, low cost, fast combat response and high reliability. The solidification of power system has become the development trend of missile power devices. [0003] For missiles powered by solid rocket motors, during flight, the internal combustion process is less affected by the outside world, and can achieve high maneuverability and wide envelope flight. However, due to the need to carry the oxidant itself, the specific impulse is low, up to 240s. In order to significantly increase the fl...

AI Technical Summary

Problems solved by technology

[0004] First of all, the solid ramjet engine needs to inhale air as the working fluid. In order to ensure the normal operation of the air inlet, the flight attitude cannot be changed drastically, and it is difficult to achieve high maneuverability. The highest adjustment ratio of the adjustment method is only 12:1, which cannot guarantee the high working performance of the engine throughout the flight

Therefore, compared with missiles powered by rocket engines, although the cruising speed and range of missiles powered by solid ramjet engines can be greatly improved, their performance is greatly affected by flight conditions and their maneuverability is poor. When approaching high-speed maneuvering targets in the air, such as anti-missile interceptor missiles or modern fighter jets, their evasion and tracking capabilities are limited, which reduces the missile's survivability and killing capabilities

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