Cold Gas Microthruster

Cold Gas Microthruster

Low Power, High Performance, Attitude Control Reduces Solenoid Coil Heating

Marotta has developed a unique cold gas microthruster and electronics driver combination that is capable of very low power operation.  The resulting low power component provides an order of magnitude reduction in solenoid coil heating compared to an ordinary continuous duty solenoid.

As spacecraft become smaller, so do the corresponding power generation devices, such as solar arrays.  Satellite thermal management becomes a bigger issue because it is more difficult to dissipate heat from power consuming satellite components.  As a result, smaller micro-spacecraft demand that less power be consumed by spacecraft components. 

Features:
  • Less than 5 milliseconds response time
  • Operating temperatures -18°C to 50°C
  • GN2 or inert gas
  • Less than 1 watt peak power
  • Thruster Mass < 60 grams

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NASA TECH BRIEFS Article

“Cold Gas Micro-Thruster Enhances Satellite Thermal Management”

As spacecraft continually decrease in size, power generation devices such as solar arrays must also decrease in size, causing critical satellite thermal issues. Because it is more difficult to dissipate heat from power consuming satellite components, smaller micro-spacecraft demand that less power be consumed by spacecraft components…. Read More >>

 

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Note: The listed performance data may represent specific program requirements and not the design limitations of the technology.