Linear spot scanning laser chemical micro-thruster

A technology of micro-propeller and linear light spot, which is applied in the directions of jet propulsion, machine/engine, rocket engine, etc., to achieve the effect of reducing structural mass, improving system safety, and reducing system complexity

Active Publication Date: 2020-04-17
SHANGHAI XINLI POWER EQUIP RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can only generate thrust in the order of μN

Method used

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  • Linear spot scanning laser chemical micro-thruster
  • Linear spot scanning laser chemical micro-thruster
  • Linear spot scanning laser chemical micro-thruster

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] The invention provides a laser chemical micro-propeller of line-spot scanning type. The propeller uses laser light to control the combustion of photosensitive propellants, and the combustion gas products are accelerated and ejected through the internal flow field of the engine, thereby generating mN-level thrust. The specific implementation scheme is: the laser chemical micro-propeller of the line spot scanning type is composed of a photosensitive propellant, a combustion chamber, a Laval nozzle, a rotating steering gear and a line spot laser; High-speed stepping and rotating motion, the line spot laser scans the photosensitive propellant, and the photosensitive propellant burns non-self-sustainingly in the combustion chamber in the irradiated area of ​​the line spot laser, and the gas generated by the combustion is ejected thro...

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Abstract

The invention relates to a linear spot scanning laser chemical micro-thruster capable of providing mN micro-thrust. The micro-thruster comprises a photosensitive propellant, a cylindrical combustion chamber, a Laval nozzle, a rotary steering gear and a linear spot laser. The rotary steering engine drives the linear spot laser to perform 360-degree stepping rotation, the linear spot laser scans andignites the photosensitive propellant in the cylindrical combustion chamber, and fuel gas is sprayed out via the Laval nozzle and generates mN thrust. The rotary steering gear can adjust the rotationangle and rotation speed, so that laser scanning speed of a linear spot is adjusted, the photosensitive propellant can be subjected to non-self-sustained combustion under laser irradiation, combustion and extinguishing of the propellant are achieved by turning on or turning off the laser, and thus, repeated start of thrust is achieved. The micro-thruster has small size and low weight, and can generate mN thrust under the vacuum condition, and the power demand of attitude control and orbit change of microsatellites is met.

Description

technical field [0001] The invention relates to the technical field of thruster design, in particular to a line-spot scanning type laser chemical micro-thrower, the charge of which is a solid photosensitive propellant. Background technique [0002] Existing micro-satellites are limited by the size and weight of the satellite, and it is difficult to install a liquid propulsion system and a high-power electric propulsion system. As a result, micro-satellites do not have the ability to adjust attitude and orbit, and severely limit the functions of micro-satellites. Installing a suitable propulsion system for micro-satellites will significantly improve the performance of micro-satellites in all aspects, enabling micro-satellites to achieve tasks such as formation flight and orbital maneuvering, and can increase the on-orbit life of micro-satellites by 1 to 2 times. [0003] The laser propulsion engine disclosed in patent CN102062019A is a liquid rocket engine with an adjustable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/10F02K9/95F02K9/26F02K9/34
CPCF02K9/10F02K9/26F02K9/34F02K9/95
Inventor 华佐豪郭宁陈伟康徐志敬王浩宇罗思璇王佳兴
Owner SHANGHAI XINLI POWER EQUIP RES INST
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