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Blowing-down system and blowing-down adapting part used for low-temperature liquid-propellant rocket engine

A rocket engine and blow-off system technology, which is applied to rocket engine devices, machines/engines, mechanical equipment, etc., can solve problems such as poor blow-off effect, complicated operation process, and increased flight failure of liquid rockets, so as to improve blow-off efficiency , Improve the effect of conversion efficiency

Active Publication Date: 2019-04-16
SHAANXI LANDSPACE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The blowing system of the existing liquid rocket engine not only has poor blowing effect, but also has complicated operation process, which affects the reliability of the liquid rocket and increases the risk of liquid rocket flight failure

Method used

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  • Blowing-down system and blowing-down adapting part used for low-temperature liquid-propellant rocket engine
  • Blowing-down system and blowing-down adapting part used for low-temperature liquid-propellant rocket engine
  • Blowing-down system and blowing-down adapting part used for low-temperature liquid-propellant rocket engine

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Embodiment Construction

[0027] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. Spatially relative terms such as "below", "beneath", "under", "lower", "above", "on", "higher", etc. are used to facilitate description to explain the relative The orientation of two elements means that these terms are intended to encompass different orientations of the device in addition to orientations other than those shown in the figures. In addition, for example, "one element is on / under another element" may mean that two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first", "second", etc. are also used to describe various elements, regions, sections, etc. and should not be taken as limitations. Similar terms refer to similar elements throughout the description.

[0028] As mentioned earlier, the blow-off system is an impo...

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Abstract

The invention provides a blowing-down system and a blowing-down adapting part used for a low-temperature liquid-propellant rocket engine. The blowing-down adapting part comprises a first main pipeline, a first self-locking electromagnetic valve, a third self-locking electromagnetic valve, a gas storage device and a blowing-down pipeline. The first self-locking electromagnetic valve and the third self-locking electromagnetic valve are arranged at different positions of the first main pipeline correspondingly; the gas storage device is connected with an air inlet of the first self-locking electromagnetic valve and an air outlet of the third self-locking electromagnetic valve correspondingly through a tee pipe; and the blowing-down pipeline is connected with the first main pipeline. By meansof the blowing-down adapting part, due to the fact that the self-locking electromagnetic valves are arranged at the upstream part and the downstream part of the storage device correspondingly, the electrifying time of the self-locking electromagnetic valves can be shortened, and therefore the electric quantity losses are reduced, and the work reliability of the blowing-down adapting part is improved.

Description

technical field [0001] The invention relates to the technical field of aerospace engines, in particular to a blow-off system and a blow-off adapter for cryogenic liquid rocket engines. Background technique [0002] During the multiple stages of the liquid rocket on the ground or after take-off, its liquid engine needs to be blown off by the ground blowing system or the arrow blowing system to ensure the flight safety of the liquid rocket. [0003] The main functions of the blowing system of the cryogenic liquid rocket engine may include: 1) Prevent the water vapor in the air from entering the inner cavity of the engine during the pre-cooling process to prevent icing, which will cause valve sticking, nozzle blockage, and turbo pump shafting. failures such as stagnation. 2) Prevent the oxidant and fuel in the turbo pump from channeling. 3) Reduce the engine shutdown aftereffect impulse. 4) It is convenient for the follow-up processing of the engine after the test. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/60
CPCF02K9/60
Inventor 张春本王菊金张小平李晨
Owner SHAANXI LANDSPACE TECH CO LTD
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