Pistonless Pump For Rocket Pdf Download _TOP_
Nearly all of the hardware in this pump consists of pressure vessels, so the weight is low.There are less than 10 moving parts , and no lubrication issues which might cause problems with other pumps. The design and constr. Of this pump is st, forward and no precision parts are required .This device has advantage over standard turbopumps in that the wt. is about the same, the unit,engg.and test costs are less and the chance for catastrophic failure is less.This pump has the advantage over pressure fed designs in that the wt. of the complete rocket is much less, and the rocket is much safer because the tanks of rocket fuel do not need to be at high pressure.
Pistonless Pump For Rocket Pdf Download
The pump could be started after being stored for an extended period with high reliability.It can be used to replace turbopumps for rocket booster opn. or it can be used to replace high pressure tanks for deep space propulsion.It can also be used for satellite orbit changes and station keeping.
This system would require a supply of gaseous or liquid Helium which would be heated by a heat exchanger mounted on the combustion chamber before it was used to pressurize the fuel, as in the Ariane rocket.. The volume of gas required would be equivalent to a standard pressure fed design, with a small additional amount to account for ullage in the pump chambers. The rocket engine itself could be a primarily ablative design, as in the NASA Fastrac, scorpious rocket or in recent rocket engine tests.
NASA has designed,built and tested a simple, light weight pump (dual pistomless pump) for use in liquid propelled rocket where a reliable pump with minimal moving parts is needed. This pump has the potential to reduce the cost and increase the reliability of rocket fuel pumps by a factor of 20 to 100.