[AR] RE: [AR] Re: [AR] Re: [AR] Re: [AR] piston pumps and peroxide (was Re: [AR] “Transitioning...)

  • From: <mark.spiegl@xxxxxxxxx>
  • To: <arocket@xxxxxxxxxxxxx>
  • Date: Fri, 7 Apr 2023 16:48:23 -0500

I don't know about Flometrics piston pump, can you tell more? 

Piston-LESS

A Google search for "Flometrics pistonless pump" will yield a ton of material 
with enough detail to build one. It's a clever design. The pistonless pump 
appears moderately easy to fabricate. 

To me... the downside of the pistonless pump is the requirement to have a tank 
of high pressure gas drive the pump (N2, CO2, other). Once the tank/GSE/etc 
have been designed, does the pistonless pump offer any advantage over pressure 
feeding the propellants? Don't know.

https://patents.google.com/patent/US7611333B1
https://patents.google.com/patent/US7007456B2


--MCS



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