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Open-type liquid oxygen kerosene engine system and thrust adjusting method thereof

An engine system and thrust adjustment technology, which is applied to machines/engines, rocket engine devices, mechanical equipment, etc., can solve problems such as lack of thrust adjustment capabilities, inability to meet the multi-task requirements of launch vehicles, and single functions, and achieve improved thrust, The effect of high reliability and simple adjustment logic

Active Publication Date: 2022-02-15
XIAN AEROSPACE PROPULSION INST
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Problems solved by technology

[0004] The present invention provides an open liquid oxygen kerosene engine system and its thrust in order to solve the technical problem that the existing open cycle liquid oxygen kerosene engine system does not have the thrust adjustment capability, cannot meet the multi-task requirements of the launch vehicle, and can realize single function. adjustment method

Method used

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  • Open-type liquid oxygen kerosene engine system and thrust adjusting method thereof
  • Open-type liquid oxygen kerosene engine system and thrust adjusting method thereof
  • Open-type liquid oxygen kerosene engine system and thrust adjusting method thereof

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Embodiment Construction

[0033] 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.

[0034] Aiming at the variable thrust requirements in the actual use of the open cycle liquid oxygen kerosene engine, the present invention proposes an open type liquid oxygen kerosene engine system capable of adjusting thrust in a wide range and its thrust adjustment method to meet different flight mission requirements , Improve the adaptability of the engine for various m...

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Abstract

The invention belongs to an engine system and a thrust adjusting method thereof, and provides an open-type liquid oxygen kerosene engine system and a thrust adjusting method thereof in order to solve the technical problems that existing open type circulation liquid oxygen kerosene engine systems do not have the thrust adjusting capacity, cannot meet the multi-task requirement of a carrier rocket and is single in achievable function. An oxygen auxiliary path double-station valve is arranged on an oxygen auxiliary pipeline, a fuel auxiliary path regulator is arranged on a fuel auxiliary pipeline, the flow and the mixing ratio of a propellant entering a fuel gas generator can be regulated through the oxygen auxiliary path double-station valve and the fuel auxiliary path regulator, and the temperature and the flow of fuel gas generated by the fuel gas generator are changed, so that the power of a turbine is influenced, the flow and the pressure of the propellant entering a thrust chamber are changed, and the purpose of adjusting the thrust of an engine in a large range is achieved.

Description

technical field [0001] The invention belongs to an engine system and a thrust adjustment method thereof, in particular to an open liquid oxygen kerosene engine system and a thrust adjustment method thereof. Background technique [0002] Conventional launch vehicles mostly use conventional propellant open-cycle engines. This type of engine system has a simple structure and is easy to use and maintain. However, the conventional propellants used are highly toxic and expensive, and are already facing the need for replacement. The new generation of launch vehicles mainly adopt liquid oxygen kerosene propellant afterburning cycle engines. This type of propellant has high specific impulse performance, low cost, convenient use and maintenance, and is non-toxic and pollution-free. high cost. [0003] The Chinese patent with the publication number CN111502864 discloses an open cycle liquid oxygen kerosene engine system and its use method. It uses a liquid oxygen kerosene propellant w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/46F02K9/48F02K9/58
CPCF02K9/46F02K9/48F02K9/58
Inventor 刘上王通韩红伟姜垒陈达冯耀辉韩豹
Owner XIAN AEROSPACE PROPULSION INST
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