The analysis of operability of dilatometric microthruster with polymer working components

Abstract

The article describes the device of a dilatometric microthruster. The study of the device's operability with low power consumption is carried out. It is based on the designed prototype of the thruster in vacuum conditions. The results of the experiments showed that at the pressure of the working gas-air mixture at the thruster inlet of 1 atm. and with a mass flow rate of gas 2,33•10–7 kg/s, the device is able to produce a thrust value within 33 mkH, with a specific thrust pulse of 140 m/s. In turn, the power consumption of the device is only 0,81 W.

Keywords

• microthruster
• dilatometric microthruster
• cold gas
• energy efficiency
• thrust
• specific thrust impulse