Gas recovery type POGO suppressor for liquid rocket
A liquid rocket and gas recovery technology, which is applied in the direction of rocket engine devices, jet propulsion devices, machines/engines, etc., can solve the problems of small volume, low load capacity, and inability to work with variable energy, and achieve high pressure bearing design, weight reduction and Cost, simple effect of manufacture
Active Publication Date: 2021-02-19
SHANGHAI AEROSPACE SYST ENG INST
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[0026] The following will combine Figure 1 to Figure 5 The gas recovery type liquid rocket POGO suppressor of the present invention is further described in detail.
[0027] figure 1 Shown is a schematic diagram of a gas recovery type liquid rocket POGO suppressor according to a preferred embodiment of the present invention.
[0028] see figure 1 , the gas recovery type liquid rocket POGO suppressor of this embodiment is installed between the engine propellant inlet and the propellant delivery pipe, including a main body 1, an intake system 2, an exhaust system 3 and a rocket central controller 4;
[0029] The main body 1 communicates with the propellant tank of the liquid rocket through the propellant delivery pipe;
[0030] The air intake system 2 directly uses the gas in the cylinder of the liquid rocket pressurization system to output to the main body 1;
[0031] The exhaust system 3 directly discharges the gas in the main body 1 into the air pillow of the liquid rocke...
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The invention provides a gas recovery type POGO suppressor for a liquid rocket. The gas recovery type POGO suppressor for the liquid rocket is installed between an engine propellant inlet and a propellant conveying pipe, and comprises a main body, a gas inlet system, an exhaust system and a rocket central controller; the main body communicates with a propellant storage tank of the liquid rocket through the propellant conveying pipe; the gas inlet system directly introduces gas of a gas cylinder of a pressurization system of the the liquid rocket to the main body; the exhaust system directly exhausts the gas in the main body into a gas cushion of the propellant storage tank; and the rocket central controller controls the gas inlet system and the exhaust system, so that the gas flow of the gas inlet system is matched with that of the exhaust system, and a constant-volume gas cavity is formed in the main body. The gas recovery type POGO suppressor for the liquid rocket provided by the invention solves the problems that an existing metal film box type POGO suppressor is small in volume, low in bearing capacity and cannot work in an energy changeable mode.
Description
technical field [0001] The invention relates to liquid rocket POGO suppressor technology, in particular to a gas recovery type liquid rocket POGO suppressor. Background technique [0002] The POGO suppressor is a key device for suppressing the POGO effect (that is, longitudinally coupled vibration) of a large liquid launch vehicle. It is generally installed between the propellant delivery pipe and the propellant inlet of the engine. Through the flexible gas chamber, the natural frequency of the propellant delivery system is reduced, so that the natural frequency of the propellant delivery system and the natural frequency of the rocket body structure are separated from each other to achieve Inhibit the POGO effect of the rocket, and avoid failures such as load damage, astronaut discomfort, abnormal shutdown of the rocket engine, and even damage to the rocket body. [0003] At present, POGO suppressors of liquid launch vehicles in my country mainly use metal diaphragm boxes t...
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IPC IPC(8): F02K9/44F02K9/56F02K9/58F02K9/60
CPCF02K9/44F02K9/566F02K9/58F02K9/605
Inventor 吴雪蛟任枫汪彬李翔王树杰臧辉石玉鹏
Owner SHANGHAI AEROSPACE SYST ENG INST