Page 1 of 2 - Rocket engine with electric pumps - posted in Engineering: Hello dear friends!   As an alternative to heavy pressurized tanks and to complicated turbopumps, an electric pump can feed the propellants in the chamber(s). Conceivable at small chemical thrusters, where a high pressure improves the efficiency and injects enthalpy from the Solar panels.

Scale up: electronics can control 1MW motors from the mains voltage. A 70% efficient centrifugal pump brings then 72kg/s...