Internal heating nitrous oxide monopropellant gas generator

A nitrous oxide single gas generator technology, applied in jet propulsion devices, machines/engines, rocket engine devices, etc., can solve problems such as low power supply, achieve energy saving, improve heating efficiency, and high decomposition temperature.

Inactive Publication Date: 2011-02-23
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of catalyst performance, the threshold temperature for self-sustained catalytic decomposition of existing nitrous oxide catalysts is generally higher than 250°C, far excee

Method used

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  • Internal heating nitrous oxide monopropellant gas generator
  • Internal heating nitrous oxide monopropellant gas generator

Examples

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Embodiment Construction

[0012] The use mode of the present invention will be further described below in conjunction with the accompanying drawings.

[0013] Shown is an internally heated nitrous oxide monocomponent gas generator related to the present invention, including: 1. Armored internal heater, 2. Copper gasket, 3. Propellant conduit, 4. Front orifice plate , 5. Catalytic decomposition chamber, 6. Rear orifice plate, 7. Nozzle, 8. Catalytic bed, 9. Thermocouple nozzle, 10. Thermocouple.

[0014] The installation sequence of the gas generator is as follows: first install the thermocouple (10) from the side; then install the front orifice plate (4), copper gasket (2), armored inner heating Install the device (1) and tighten the thread; then fill the catalyst from the rear end of the catalytic decomposition chamber to form a catalytic bed (8), and install the rear orifice plate (6); finally install the nozzle pipe (7) from the rear end and tighten the thread.

[0015] During work, the two electro...

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Abstract

The invention relates to an internal heating nitrous oxide monopropellant gas generator. A high-temperature decomposition product of nitrous oxide gas can be applied by utilizing the characteristics of nontoxicity, non-pollution, high decomposition temperature and self-sustaining decomposition reaction of the nitrous oxide gas. The internal heating nitrous oxide monopropellant gas generator can be taken as a monopropellant thruster to be applied to the attitude control of satellites, and also can be taken as an oxidant source and an ignition device to be applied to the oxidant supply and ignition of a small liquid-propellant rocket engine or a solid-liquid rocket engine. Compared with the internal heating nitrous oxide monopropellant gas generator adopting the conventional external heating preheating mode, the internal heating nitrous oxide monopropellant gas generator adopting the unique heating mode and overall layout can effectively improve heating efficiency, save energy and ensure relatively long service life.

Description

【Technical field】 [0001] The invention relates to a small-sized internally heated nitrous oxide single-unit gas generator. The device uses nitrous oxide gas as a working medium, and can be used as a single-unit thruster for attitude control of satellites, and can also be used as an oxidant source And the ignition device is applied to the oxidant supply and ignition of small liquid rocket motor or solid-liquid rocket motor. 【Background technique】 [0002] In order to break through the many limitations of traditional micro-propulsion systems in terms of safety and performance, the use of nitrous oxide as a monopropellant has become one of the development directions for the development of non-toxic propellants. Nitrous oxide is non-toxic, non-corrosive, and has good stability at room temperature; and its saturated vapor pressure is high (about 50 atm), and it can be self-pressurized to realize propellant extrusion transportation; when it is used as liquefied gas for propulsion,...

Claims

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Application Information

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IPC IPC(8): F02K9/72F02K9/52
Inventor 蔡国飙孙威方杰李茂
Owner BEIHANG UNIV
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