THREE-COMPONENT LIQUID-PROPELLANT ENGINE Russian patent published in 2013 - IPC F02K9/48 

FIELD: engines and pumps.

SUBSTANCE: liquid-propellant engine containing an onboard computer, an oxidiser turbo-pump unit containing in its turn the main turbine, pumps and a start-up turbine, an oxidiser gas generator, as well as an external high-pressure air bottle connected via a high-pressure pipeline through a valve to the start-up turbine, and ignition devices on the combustion chamber and the oxidiser gas generator, according to the invention, contains in addition two turbo-pump units: a turbo-pump unit of the first fuel and a turbo-pump unit of the second unit; at that, the turbo-pump unit of the first fuel includes the second main turbine, a pump of the first fuel and the second start-up turbine and gas generator of the first fuel; at that, gas generator of the first fuel is structurally combined with the turbo-pump unit of the first fuel, and turbo-pump unit of the second fuel includes the third main turbine, the pump of the second fuel and the third start-up turbine, as well as gas generator of the second fuel, turbo-pump unit of oxidiser includes an oxidiser pump and an additional oxidiser pump.

EFFECT: improving specific characteristics and improving reliability of a liquid-propellant engine.

16 cl, 9 dwg