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Test run method of open circulation liquid oxygen kerosene engine system

An engine system and open cycle technology, which is applied in the direction of machines/engines, rocket engine devices, mechanical equipment, etc., can solve the problems of large propellant flow rate and high risk of ignition test of the whole engine, and achieve small propellant flow rate and reduce The risk of starting the whole machine and the effect of low pressure

Active Publication Date: 2020-08-07
XIAN AEROSPACE PROPULSION INST
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Problems solved by technology

[0004] However, since the thrust chamber of the open-cycle liquid oxygen kerosene engine is liquid / liquid combustion, the propellant flow rate entering the thrust chamber is large during ignition, and the risk of the ignition test of the whole engine is high. Therefore, there is an urgent need for an open-cycle engine. Test method

Method used

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  • Test run method of open circulation liquid oxygen kerosene engine system

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Embodiment Construction

[0071] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0072] In the description of the invention, it should be noted that the terms "first" and "second" are only used for description purposes, and should not be understood as indicating or implying relative importance.

[0073] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integral...

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Abstract

The invention discloses a test run method of an open circulation liquid oxygen kerosene engine system. According to the method, the starting process of an engine is verified step by step, and the complete machine starting risk at the beginning of developing the engine is reduced. The method comprises the main steps that 1, the engine system is built; 2, first thrust chamber extrusion ignition testrun is carried out; 3, second main system test run is carried out; and 4, third total-system test run is carried out.

Description

technical field [0001] The invention belongs to the technical field of liquid rocket engines, in particular to a test run method for an open cycle liquid oxygen kerosene engine system. Background technique [0002] As a non-toxic and non-polluting propellant combination for launch vehicles, liquid oxygen kerosene has the characteristics of high specific impulse performance, low cost, and convenient use and maintenance, and is widely used in current launch vehicles. Since the current generation of launch vehicle liquid oxygen kerosene main power engine is a supplementary combustion cycle, although the specific impulse performance of the engine is high, due to the high system pressure of the supplementary combustion cycle engine, the engine system is complicated, and the production and testing of components are difficult. The cost of production and use and maintenance is high, and the output is also low. Conventional launch vehicles in active service use conventional propella...

Claims

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Application Information

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IPC IPC(8): F02K9/96F02K9/46F02K9/95F02K9/60
CPCF02K9/46F02K9/60F02K9/95F02K9/96
Inventor 刘上韩红伟冯耀辉童飞王艺杰蒲光荣秦新华
Owner XIAN AEROSPACE PROPULSION INST
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