Expansion section lateral drainage thrust vector control spray pipe

Abstract

The invention relates to an expansion section lateral drainage thrust vector control spray pipe. A thrust vector control system is mainly composed of a control system, a driving motor, a driving rod, a flow guide rod and a drainage pipe. A fuel gas drainage hole is formed in the expansion section of a spray pipe body, a drainage pipe is connected into the fuel gas drainage hole in an embedded mode, and a second flow guide rod through hole perpendicular to a second drainage channel is formed in the drainage pipe. A flow guide rod channel is arranged on the expansion section of the spray pipe body. The flow guide channel is blocked or opened by controlling the position of the flow guide rod, and when fuel gas in the spray pipe is sprayed out of the flow guide channels, reverse control torque is generated. A plurality of thrust vector control devices can be symmetrically arranged on the spray pipe, and each thrust vector control device can be opened and closed for multiple times; and when one drainage channel is independently opened or multiple drainage channels are asymmetrically opened, thrust vector control can be achieved. When the multiple drainage channels are symmetrically opened, lateral force in all directions counteracts one another, lateral torque is not generated, but the axial thrust of the engine can be reduced.

Description

technical field [0001] The invention belongs to the technical field of rocket engines, and in particular relates to a rocket engine nozzle thrust vector control structure. Background technique [0002] With the in-depth development of military-civilian integration, rocket technology is playing an increasingly important role in the field of weather detection. Weather detection rockets usually use solid rocket motors as power devices, and the thrust vector control nozzle of rocket motors uses rocket motors as power devices. The thrust vector control nozzle is an important part of the aircraft control system. The thrust vector control nozzle mainly completes three tasks: one is to provide a certain lateral force according to the predetermined procedure to make the aircraft fly according to the predetermined trajectory; Provide a certain lateral force to correct the attitude; the third is to change the flight trajectory according to the command. [0003] At present, common rock...

AI Technical Summary

Problems solved by technology

Gas rudder technology will bring greater engine total stroke loss, swing nozzle technology and secondary flow technology will bring greater structural complexity

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