An integral solid rocket ramjet inlet outlet plug cover

Abstract

The invention discloses an integral solid rocket ramjet inlet outlet blank cover which comprises a supporting grid, a U-shaped bearing plate, a sealing gasket and a sealing ring. The supporting grid is mounted between a ramjet inlet and a supplemental combustion chamber shell. The U-shaped bearing plate is embedded in the supporting grid. The sealing gasket is mounted between the inlet and the supporting grid and used for sealing high-pressure gas of a supplemental combustion chamber. The sealing ring is mounted between the rubber sealing gasket and the supplemental combustion chamber shell. According to the integral solid rocket ramjet inlet outlet blank cover, the blank cover design of achieving automatic blowdown under ram-air is adopted, and the influence of bursting force generated when a fragile inorganic glass blank cover is opened on the missile attitude and the influence of an opened hinged blank cover stretching into a supplemental combustion chamber on combustion of the supplemental combustion chamber are avoided; the structure is simple and compact, and the influence on the molded surface of the inlet is small; and mounting is convenient, and use is simple and reliable.

Description

technical field [0001] The invention belongs to the technical field of aerospace power, and in particular relates to an integral solid rocket ramjet inlet port outlet plugging cover. Background technique [0002] The integral solid rocket ramjet inlet outlet plug is one of the key components in the conversion process of the solid rocket ramjet, and is installed between the inlet and the afterburner chamber. Its function is: in the boosting flight section of the integral solid impulse engine, the outlet plug of the inlet port bears the gas pressure in the afterburning chamber of the boosting working section to ensure reliable sealing. After the booster section is finished, the engine switches from the booster section to the ramming section, the inlet outlet plug is opened, and the intake ram air enters the afterburner smoothly to participate in the mixed combustion of the ramming section. There are two ways to open the intake port: 1) According to the step-up instruction, th...

AI Technical Summary

Problems solved by technology

The existing blocking cover can basically meet the above design requirements, but there are still many problems. For example, after the hinged blocking cover is opened, the blocking cover extends into the afterburning chamber, which will easily affect the combustion of the afterburning chamber. The blasting force will affect the attitude of the missile, and there are few blocking covers with complex structures, high manufacturing process requirements, and high manufacturing costs.

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