NASA NTRS · 19690000319
Hermetically sealed pump
Abstract
Mechanically simple, hermetically-sealed pump utilizes pumped fluid for lubrication. The rotor, having helical grooves on the outer surface, functions as both a bearing and pump.
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Ludwig, L. P., Strom, T. N.. 1969-08-01. Hermetically sealed pump. https://ntrs.nasa.gov/citations/19690000319
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