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Paper on Turbopump Alternative
Peter Fairbrother wrote in message
One thing that might be done would be to introduce a very light piston, to thermally seperate the drive gas from the pumped fuel/propellant. A disk of foamed plastic, or the high-tech equivalent. This idea is stated in the patent. Quimby expanders are good for tolerance requirements, as the pressure difference is split between several seals. What is a Quimby expander? Greg |
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