DEVICE FOR PRESSURISING PROPELLANT RESERVOIRS OF ROCKET ENGINE Russian patent published in 2018 - IPC F02K9/50 F02K9/94 

FIELD: internal combustion engines.

SUBSTANCE: invention relates to pressurising propellant reservoirs of rocket engines. Device comprises two heat exchangers suitable for vaporizing first and second propellant components, respectively, before their reintroduction in a gaseous form into reservoirs intended therefor. Heat exchangers interact respectively with the first and second gas generators configured to supply a mixture of rocket fuel components therein to provide combustion, wherein the second gas generator is configured to supply it, at least in part, with gases exiting the first gas generator.

EFFECT: invention provides pressurisation of the two fuel reservoirs by re-injecting the evaporated propellant components into the reservoirs while maintaining energy efficiency.

14 cl, 2 dwg