OXYGEN-HYDROGEN LIQUID-PROPELLANT ENGINE Russian patent published in 2013 - IPC F02K9/48 

FIELD: engines and pumps.

SUBSTANCE: in oxygen-hydrogen liquid-propellant engine containing a combustion chamber having a regenerative cooling system of the nozzle with fuel, two turbo-pump units, including an oxidiser turbo-pump unit and a fuel turbo-pump unit; at that, all turbo-pump units contain the main turbine, pumps; at that, it additionally includes at least one additional fuel turbo-pump unit, fuel pumps of all turbo-pump units are connected in series, main turbines of all fuel turbo-pump units are also connected in series; at that, oxidiser and fuel turbo-pump units have gas generators structurally combined with their turbo-pump units.

EFFECT: improving specific characteristics of a liquid-propellant engine and reducing the costs for start-up of a rocket.

21 cl, 20 dwg