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Liquid propellant conveying system of blow-down rocket engine

A rocket engine and liquid propellant technology, which is applied in rocket engine devices, machines/engines, jet propulsion devices, etc., can solve the problems of complex pump pressure structure, high cost of high-pressure gas cylinders, high development time and cost, and achieves high processing efficiency. And the effect of low development difficulty, low cost and easy realization

Inactive Publication Date: 2010-06-16
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the extrusion system, the cost of high-pressure gas cylinders is high, while the pump pressure system has a complex structure, high development time and cost

Method used

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  • Liquid propellant conveying system of blow-down rocket engine
  • Liquid propellant conveying system of blow-down rocket engine
  • Liquid propellant conveying system of blow-down rocket engine

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Embodiment Construction

[0012] Below in conjunction with the accompanying drawings, the present invention will be further described with embodiments.

[0013] The schematic diagram of the system is as follows figure 1 As shown in the figure, the device for realizing the functions of the conveying system mainly includes: a storage tank 1, an electric explosion valve 2, an orifice 3, a flow control valve 4, a booster valve 5, a filling valve 6 and the connecting pipelines between them. devices and electro-explosive valve control systems. Flow control valves such as figure 2 As shown, it consists of a valve cover 7, a valve core 8, a spring 9, a bushing 10, a valve body 11, a tie rod 12, a mounting nut 13, an O-ring 14, an O-ring 15, and an O-ring 16. ; There is an oil storage tank on the valve core 8, which can store the sealing grease; the bushing 10 is designed with a type hole.

[0014] The space between the valve core and the valve cover is called the front cavity, and the space where the sprin...

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Abstract

The invention relates to a liquid propellant conveying system of a blow-down rocket engine, belonging to the field of the conveying system of the rocket engine. The conveying system comprises a conduit head (1), an electric explosion valve (2), an orifice (3), a flow control valve (4), a pressure increasing valve (5), a filling valve (6), a connecting pipeline and an electric explosion valve control circuit. The manipulation gas of the flow control valve (4) is the gas in the conduit head (1); the flow control valve is in the closing state before being started; the flow control valve (4) is started by the electric explosion valve (2); and the flow control valve (4) can control the flow after being started; when the pressure of the conduit head (1) falls, a valve core (8) is controlled to move by the pressure of the conduit head (1) so as to increase the valve opening and regulate the orifice size of the valves, thereby achieving the goal of flow stability; the orifice can prevent the valves from being opened, thereby improving the system reliability. The propellant conveying system has simple structure and low cost.

Description

【Technical field】 [0001] The invention relates to the field of rocket engine liquid propellant delivery systems, in particular to a drop pressure rocket engine liquid propellant delivery system with self-evaporating and pressurizing properties. 【Background technique】 [0002] In a liquid rocket motor or a solid-liquid hybrid rocket motor system, the liquid propellant is not stored in the thrust chamber. Therefore, for a liquid rocket motor or a solid-liquid hybrid rocket motor, there must be a delivery system to automatically transfer the liquid propellant to a certain pressure. According to certain requirements, it is sent into the thrust chamber. [0003] At present, there are two main types of liquid propellant delivery systems for rocket engines: squeeze type and pump pressure type. The extrusion conveying system consists of high-pressure gas cylinders, storage tanks, valve assemblies, automatic regulators, etc. The pump pressure conveying system is mainly composed of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/58
Inventor 蔡国飙袁宇李茂李君海俞南嘉
Owner BEIHANG UNIV
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