Self-pushing launching device for improving initial volume of low pressure chamber

Abstract

The invention discloses a self-pushing launching device for improving the initial volume of a low pressure chamber and belongs to the technical field of weapon launching devices. The self-pushing launching device for improving the initial volume of the low pressure chamber comprises a launching barrel, a guided missile, more than two hydraulic oil cylinders and a layer board, wherein the more thantwo hydraulic oil cylinders are located in the launching barrel, the cylinder ends of the hydraulic oil cylinders are fixed to the step surface of the launching barrel, and the piston rod ends of thehydraulic oil cylinders are integrally connected to the layer board in the bottom of the launching barrel; the guided missile is located in the launching barrel, the bottom of the guided missile leans against the layer board, and a laval spray tube in the bottom of the guided missile penetrates through a centre hole of the layer board; in an initial state, the piston rods of the hydraulic oil cylinders are in an elongated state, and the laval spray tube in the bottom of the guided missile is in contact with the bottom of the launching barrel. The device disclosed by the invention can improvethe initial volume of the low pressure chamber, reduce overload of the guided missiles in the launching process, reduce the temperature of the bottoms of the guided missiles and reduce the pressure ofthe inner side of the launching barrel.

Description

technical field [0001] The invention belongs to the technical field of weapon launching devices, and in particular relates to a self-bombing launching device for increasing the initial capacity of a low-pressure chamber. Background technique [0002] When the missile is launched, the engine combustion chamber is a high-pressure chamber, and the gas generated by the missile's own engine is directly sealed in the launch tube, so that the space at the bottom of the launch tube becomes a low-pressure chamber, and the gas in the low-pressure chamber is directly used to propel the missile. On the one hand, the gas accelerates through the Laval nozzle to form a reaction force; on the other hand, the gas fills the space of the low-pressure chamber so that the pressure rises to generate additional thrust. This launching method is called self-bombing launch. The launcher of this self-bombing launch method has a simple structure, saves space, and can increase the filling density and co...

AI Technical Summary

Problems solved by technology

However, due to the small initial capacity of the low-pressure chamber of the launching device using the self-bombing launching method, the missile will be overloaded during the launching process, the pressure on the inside of the launching tube will be too large, and the temperature of the missile bottom will be too high

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