Heat-proof stern room structure of rocket engine

Abstract

The invention provides a heat-proof stern room structure of a rocket engine. The heat-proof stern room structure comprises a stern room body, wherein an assembling hole for assembling an engine jet pipe is formed in the stern room body; a pressing ring is arranged at a position, corresponding to the assembling hole, on the stern room body; a fitting portion for filling a gap at a joint of the engine jet pipe and the stern room body is arranged on the side, facing the center of the assembling hole, of the pressing ring; the other side of the pressing ring is arranged on the stern room body; a heat-proof ring is arranged at a position, corresponding to the periphery of the assembling hole, on the stern room body; a fire blocking ring is arranged at a position, corresponding to the pressing ring, on the heat-proof ring; a filling gap is formed between the fire blocking ring and the fitting portion of the pressing ring; and a filler assembly is arranged in the filling gap. The heat-proof stern room structure of the rocket engine provided by the invention has good fireproof and heat-proof properties, and can effectively prevent tail flame of the rocket engine jet pipe from affecting equipment in an engine stern room; and it is ensured that the stern room can keep continuous and stable operation, and the overall safety and reliability of a rocket are improved.

Description

technical field [0001] The invention belongs to the field of rocket tail compartments, in particular to a rocket engine heat-proof tail compartment structure. Background technique [0002] The rocket body structure is an important part of the rocket. Its function is to connect the subsystems on the rocket, such as the payload, control system, power system and measurement system, to provide them with a reliable working environment and to withstand the ground. External forces during operation and flight maintain a good aerodynamic shape and maintain the integrity of the rocket. The rocket body structure is generally composed of several parts such as payload fairing, propellant storage tank, delivery system components, instrument cabin, interstage section, engine mount and tail compartment. The tail compartment is an important part of the rocket, and the interior is generally integrated with The rudder surface control mechanism and the control mechanism have certain requiremen...

AI Technical Summary

Problems solved by technology

The existing tail compartment structure is generally equipped with a heat-resistant layer structure on the side corresponding to the engine nozzle, but there is no effective fireproof sealing structure for the connection between the engine nozzle and the tail compartment body, and the single fireproof sealing structure is less affected by temperature changes. Large, the reliability of the single fire-proof sealing structure during the operation of the tail tank is not good, and it is easily damaged. The exhaust flame can easily enter or affect the tail tank through the connection between the engine nozzle and the tail tank body, resulting in damage to the tail tank or an increase in temperature. Greatly affected the stability of the tail compartment during operation

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