High total impulse solid cool gas micro propulsion unit

Abstract

A high total impulse solid cool gas micro propulsion unit includes a gas chamber (1); the gas chamber (1) is a cylindrical housing with an opening at one end of the cylindrical housing; nozzles of all the micro cool gas propulsion devices (10) are arranged on the center of an end surface of the gas chamber (1) and side walls of the gas chamber (1) respectively; a gas chamber end cover (2) seals the opening end of the gas chamber (1); a temperature sensor (5), a pressure sensor (6) and a cool gas generator (7) are fixed in the gas chamber (1); the pressure sensor (6) and the temperature sensor (5) can acquire pressure parameters and temperature parameters in real time and send the parameter values to a control drive module (3); the control drive module (3) drives the cool gas generator (7) to generate gas to be injected into the gas chamber (1) according to the received pressure parameter values and the received temperature parameter values; and the control drive module (3) drives and controls the work pulse width of the micro cool gas propulsion devices (10). The high total impulse solid cool gas micro propulsion unit can improve the total impulse of the propulsion module, can improve the whole sealing performance, and can achieve multi-degree of freedom control.

Description

technical field [0001] The invention relates to a propulsion device. Background technique [0002] Due to its low cost, light weight, and flexible launch form, micro-nano satellites have begun to attract the attention of the international aerospace community and have developed rapidly. According to the assessment of SpaceWorks Consulting Company, it is estimated that the annual market demand for micro-nano satellites below 50kg will exceed 400 pieces. Construct a distributed space system through formation networking, etc., which can be used for mainstream aerospace services such as space environment detection, tactical reconnaissance, and communication enhancement. High-quality micro-nano satellites also have high application value. Due to the requirements of future space missions for orbit control, as well as the requirements of modular design and rapid assembly, it is necessary to develop modular and prepackaged micro-propulsion technology. [0003] Due to its safety, l...

AI Technical Summary

Problems solved by technology

However, the total gas production provided by the module is limited due to the use of granular charges

Ignition adopts the method of direct heating by hot wire, which has low efficiency and ignition reliability. Nanjing University of Science and Technology has also carried out research on solid cold gas propulsion technology. Its charge form is similar to that of T3 company. Control, filter through fine sand, activated carbon, etc., fragile, easy to produce residue by itself, pollute the gas source

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