A liquid rocket engine starter and its design method

A design method and technology of liquid rockets, applied in the direction of rocket engine devices, machines/engines, mechanical equipment, etc., can solve problems such as bulky and complex structures, achieve high specific impulse, reduce leakage links, and easy maintenance

Active Publication Date: 2022-01-04
北京天兵科技有限公司
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  • Abstract
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Problems solved by technology

lead to complex structure and bulky

Method used

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  • A liquid rocket engine starter and its design method

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0029] like figure 1 As shown, the present invention provides a kind of liquid rocket engine starter, comprises propellant storage tank 1, adds discharge valve 4, solenoid valve 5, gas generator 7 and igniter 6; Stores nontoxic and For the self-pressurized nitrous oxide-based composite propellant, both gaseous and liquid propellants are stored in the propellant storage tank 1. Since the saturated vapor pressure of the me...

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Abstract

The present invention relates to a kind of starter of liquid rocket engine and design method thereof, is provided with propellant storage tank, add discharge valve, solenoid valve, gas generator and igniter; Store nontoxic self-pressurized propellant in the propellant storage tank, because The saturated vapor pressure of the medium is relatively high, and the driving pressure of the propellant can be provided by using the pressure of the medium itself; there is a filling and discharging valve connected to the connecting pipeline between the storage tank and the solenoid valve to fill and discharge the non-toxic self-pressurized medium. After the solenoid valve Connect the inlet of the gas generator through the pipeline, ignite the propellant to generate gas, and the gas enters the downstream turbine casing at high speed, and drives the turbine to rotate to realize the start of the engine. The invention adopts the nitrous oxide-based composite propellant, which has the advantages of green and non-toxic, high saturated vapor pressure, high specific impulse, low use cost and easy maintenance. The starter is simple in structure, light in weight, non-toxic and pollution-free, can be started many times, and can be used repeatedly.

Description

technical field [0001] The invention relates to the technical field of liquid rockets, in particular to a liquid rocket engine starter and a design method thereof. Background technique [0002] With the rapid development of the aerospace industry, various technologies related to rockets have also achieved rapid progress. The liquid rocket engine is an important subsystem of the rocket, and the starter is an important component of the liquid rocket engine, which provides initial power for the engine to start. [0003] Among the liquid rocket engine starters commonly used at present, the solid starter cannot achieve multiple starts, and the gas starter has a large structural mass when used for multiple starts. The liquid starter needs to provide a complete set of extrusion system, which has a complex structure. Moreover, solid starters and liquid starters usually use toxic media, which do not meet the requirements of future rockets that are green, environmentally friendly, no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/95
CPCF02K9/95
Inventor 沈涌斌田伟枫康永来朱正辉
Owner 北京天兵科技有限公司
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