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An open cycle liquid oxygen kerosene engine system and its application method

An engine system and open cycle technology, applied in the direction of machines/engines, rocket engine devices, mechanical equipment, etc., can solve the problems of poor reliability, many preparation steps, complex design of oxygen main valve and oxygen main circuit, etc., and achieve installation Convenience, simple flow path, and less ignition agent consumption

Active Publication Date: 2022-05-10
XIAN AEROSPACE PROPULSION INST
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing open cycle liquid oxygen kerosene engine system adopts a built-in gunpowder ignition device, which leads to many preparation steps before rocket launch, poor reliability in use, and relatively complicated design of the oxygen main valve and the oxygen main circuit. problem, provide an open cycle liquid oxygen kerosene engine system and its use method

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  • An open cycle liquid oxygen kerosene engine system and its application method
  • An open cycle liquid oxygen kerosene engine system and its application method

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Embodiment Construction

[0049]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0050] Such as figure 1 As shown, taking an embodiment of the present invention as an example, an open cycle liquid oxygen kerosene engine system includes a thrust chamber 1, a gas generator 5, an oxidant pump 12, a fuel pump 13, a turbine 14, an oxidant main valve 2, Fuel main valve 16, oxidant auxiliary valve 3, fuel auxiliary valve 8, propellant starter 11, pyrotechnic ...

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Abstract

The invention belongs to a liquid oxygen kerosene engine system and a method for using the same. The purpose of the present invention is to solve the problem that the current open cycle liquid oxygen kerosene engine system adopts a built-in gunpowder ignition device, which leads to many preparation steps before rocket launch, poor reliability in use, and an oxygen main valve. To solve the technical problem of complex oxygen main circuit design, an open cycle liquid oxygen kerosene engine system and its application method are provided. In the system of the present invention, the outlet of the oxidant pump is connected to the thrust chamber with an oxidant main valve interposed therebetween, the inlet port of the oxidant auxiliary channel is connected between the outlet of the oxidant pump and the main valve of the oxidant, the outlet port is connected to the gas generator, and the outlet of the fuel pump is connected to the main valve of the oxidizer. The thrust chambers are connected with a main fuel valve between them, the inlet of the auxiliary fuel circuit is connected between the outlet of the fuel pump and the main fuel valve, the outlet is connected with the gas generator, the turbine is equipped with a powder starter, and the gas generator is There is a pyrotechnic igniter, the outlet of the gas generator is connected to the turbine, and the thrust chamber adopts a chemical ignition method.

Description

technical field [0001] The invention belongs to a liquid oxygen kerosene engine system and a use method thereof, in particular to an open cycle liquid oxygen kerosene engine system and a use method thereof. 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 has been widely used in the new generation of launch vehicles. [0003] Due to its simple system and reliable structure, the open cycle liquid oxygen kerosene engine has a strong advantage in the application of liquid launch vehicles. In the Chinese patent with the publication number CN111502864A, an open cycle liquid oxygen kerosene engine system and its use method are disclosed. Through the engine system in this patent, the ignition of the open cycle liquid oxygen kerosene engine and the speed of the turbo pump can be realized. cli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/42F02K9/46F02K9/58F02K9/95
CPCF02K9/42F02K9/46F02K9/58F02K9/95
Inventor 刘上韩红伟童飞冯耀辉姜垒韩豹王艺杰
Owner XIAN AEROSPACE PROPULSION INST
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