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Gas source inflating device of torch igniter of full-flow staged combustion cycle liquid oxygen methane engine

A technology of torch igniter and liquid oxygen methane, which is applied in the direction of rocket engine devices, jet propulsion devices, machines/engines, etc., can solve the problems of reducing engine performance, increasing envelope and weight, and achieving the goal of improving performance and integration Effect

Pending Publication Date: 2021-04-16
XIAN AEROSPACE PROPULSION INST
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems of the existing liquid oxygen methane engine ignition scheme, as the number of ignition times increases, it is necessary to equip a larger volume gas cylinder, increase the envelope and weight, and reduce the performance of the engine. Flow supplementary combustion cycle liquid oxygen methane engine torch igniter gas source charging device

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  • Gas source inflating device of torch igniter of full-flow staged combustion cycle liquid oxygen methane engine

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing.

[0019] like figure 1 As shown, the full-flow post-combustion cycle liquid oxygen methane engine torch igniter gas source charging device provided by the present invention includes an oxygen high pressure source, an oxygen heat exchange element, an oxygen cylinder, a methane high pressure source, a methane heat exchange element and a methane gas cylinder ;

[0020] The high-pressure oxygen source is taken from the back-end pipeline of the oxygen pump of the engine. The high-pressure oxygen source is connected to the filling port of the oxygen cylinder through the oxygen heat exchange element and the first one-way valve 1 in turn, and the gas outlet of the oxygen cylinder passes through the first switch valve 2 and the second Three one-way valves 5 are connected with the oxygen inlet of the torch igniter;

[0021] The methane high-pressure source is taken from the high-pres...

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Abstract

In order to solve the technical problems that according to an ignition scheme of an existing liquid oxygen methane engine, a larger-volume gas cylinder needs to be arranged along with demand increase of the ignition frequency, the envelope and the weight are increased, and the performance of the engine is reduced, the invention provides a gas source inflating device of a torch igniter of a full-flow staged combustion cycle liquid oxygen methane engine. The gas source inflating device provided by the invention can utilize a low-temperature propellant an the engine in working process of the engine; the low-temperature propellant is heated and vaporized by the heat generated in the working process of the engine; and the vaporized propellant is introduced into a supply gas cylinder for the igniter. When the gas source inflating device provided by the invention is used for repeatedly starting the torch igniter of the engine, the propellant can be supplemented into the supply gas cylinder, so that the volume of the supply gas cylinder does not need to be increased, and the performance and the integration level of an engine are improved.

Description

technical field [0001] The invention relates to an air source charging device for an engine flare igniter. Background technique [0002] With the continuous development of reusable technology and space-to-earth round-trip transportation technology, the multiple ignition capability of liquid rocket engines has gradually become a necessary condition. Currently, liquid oxygen methane engines generally use a gas-gas torch ignition scheme. The volume of the gas cylinder supplies the propellant to the flare igniter, so the number of ignitions is limited by the volume of the gas cylinder supplied by the flare igniter. As the number of ignitions increases, a larger volume gas cylinder is required, which increases the envelope and weight. Reduced engine performance. Contents of the invention [0003] In order to solve the technical problems of the existing liquid oxygen methane engine ignition scheme, as the number of ignition times increases, it is necessary to equip a larger vol...

Claims

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Application Information

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IPC IPC(8): F17C5/06F02K9/44
Inventor 武晓欣王春民张航李春红张相盟马键高新宇
Owner XIAN AEROSPACE PROPULSION INST
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