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A self-pressurization system for nitrous oxide decomposition

A nitrous oxide, self-pressurization technology, applied in the direction of machine/engine, rocket engine device, jet propulsion device, etc., to achieve the effect of reducing volume and weight, low price, and ensuring the ability to stabilize voltage

Active Publication Date: 2020-03-24
SHANGHAI XINLI POWER EQUIP RES INST
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Problems solved by technology

[0014] The problem to be solved by the present invention is the miniaturization and lightweight demand of the pressurization system for power devices such as various solid-liquid hybrid rocket engines, liquid engines, and multi-mode propulsion systems that use nitrous oxide as an oxidant; To solve the above problems, the present invention provides a self-pressurization system for nitrous oxide decomposition

Method used

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  • A self-pressurization system for nitrous oxide decomposition

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Embodiment Construction

[0020] Hereinafter, the present invention will be further described in conjunction with the drawings and embodiments.

[0021] Please refer to figure 1 , a nitrous oxide self-increasing system provided by the present invention includes: a nitrous oxide storage tank 1 with a pressurized air bag 11 inside, a diaphragm valve 2, a small supercharger 3, a flow regulator 4, and a controller 5. Decomposer 6, one-way valve 7, cooler 8, filter 9, voltage regulator 10, control subsystem (not marked in the figure) and various connecting pipelines.

[0022] The pressurized air bag 11 is pre-filled with an appropriate amount of pressurized gas (helium, nitrogen, etc.), and when the standby command of the power unit is issued, the diaphragm valve 2 is opened, and the liquid nitrous oxide in the nitrous oxide storage tank 1 is pressurized. Under the action of the airbag 11, it is delivered to each subsystem and before the decomposer, and enters the system standby state. After the official ...

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Abstract

A nitrous oxide decomposition self-pressurization system comprises a nitrous oxide storage container, a membrane valve, a small-size pressurizer, a flow adjuster, a controller, a decomposer, a check valve, a cooler, a filter and a voltage stabilizer. Based on the the prior art, the invention provides the nitrous oxide decomposition self-pressurization system and the self-pressurization of the system is realized by pressurizing the storage container by using the self-decomposition product of nitrous oxide. By means of the system, a power device that uses the system does not need to carry an extra pressurizing medium and special equipment, so that the structure volume and weight of the power device can be reduced and the requirement for a small-size and light-weight pressurizing system of various power devices such as a solid-liquid mixed rocket engine, a liquid engine and a multi-modal propulsion system that use nitrous oxide as an oxidizing agent can be met.

Description

technical field [0001] The invention relates to the field of propulsion of various aircrafts in aviation and spaceflight, in particular to power devices such as various solid-liquid hybrid rocket engines, liquid engines, and multi-mode propulsion systems using nitrous oxide as an oxidant. Background technique [0002] At room temperature, the saturated vapor pressure of liquid nitrous oxide is about 5MPa, and the density is about 800kg / m 3 , its decomposition temperature is 520°C, and the decomposition products are 1 part of nitrogen and 0.5 part of oxygen. Compared with oxidizers used in conventional rockets, nitrous oxide is non-toxic, colorless, and odorless. It is a green propellant and is easy to use and store. Utilizing the high saturated vapor pressure characteristics of nitrous oxide, it is possible to achieve self-supercharging without additionally carrying a pressurized medium (usually an inert gas that occupies a large volume) or a complicated supercharging struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/72F02K9/60
CPCF02K9/60F02K9/72
Inventor 王继裴晨曦潘科玮
Owner SHANGHAI XINLI POWER EQUIP RES INST
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