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I worked in a company that makes pumps with magnetic bearings for high purity applications, i.e. semiconductor manufacturing. The impeller is a magnet completel
by donquichotte 10y ago
I worked in a company that makes pumps with magnetic bearings for high purity applications, i.e. semiconductor manufacturing. The impeller is a magnet completely coated in a really inert material, e.g. PTFE, so no metallic (bearings, shafts) parts touch the liquids.
Efficiency is pretty low with these types of bearings, we got like 60-80%. Not sure if this is ideal for a satellite.
- johnm1019 10y agoIt's always better to have more options. Now they can weigh the tradeoff of taking more power from the solar panels in exchange for size+weight reductions of the craft and possibly an increased service life. Another tool in the box. Electricity is the only thing a spacecraft can get more of once it's up there.