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Re: Glitch worsens on Mars rover's robotic arm
There was a compressor developed for Mars with no moving mechanical parts (other than valves to control the flow of ambient and pressurized gas). Overnight (when it's cold) carbon dioxide is adsorbed in a porous material inside a pressure tank through a valve open to the Mars atmosphere. During the day (when it's warmer and electrical power from solar arrays is available) the valve is closed and heaters are used to drive off the CO2 from the adsorber. Pressure in excess of one Earth atmosphere could be produced this way. This concept was developed for an experiment intended to demonstrate the production of oxygen on the surface of Mars.
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