LIQUID-PROPELLANT ROCKET ENGINE CHAMBER Russian patent published in 2019 - IPC F02K9/52 

FIELD: rocket equipment.

SUBSTANCE: invention relates to rocket engine building and can be used in making gas-free liquid-propellant rocket engines (LPRE) operating on cryogenic fuel components. Chamber of liquid-propellant rocket engine comprises cooled nozzle, mixing head consisting of housing, collector, bottom and coaxial-jet nozzles located uniformly along concentric circles, installed between nozzle and mixing head of heat exchange elements made in form of two coaxially installed pipes, on one of which slots are made, at that heat exchange element pipe ends are secured in tube plates forming fuel feed and discharge manifolds used for turbine pump turbine drives secured at mixing head and chamber nozzle. Outlet part of every coaxial jet nozzle is connected with heat exchange element.

EFFECT: invention provides increase in LPRE chamber pressure due to improved heat exchange between fuel combustion products and fuel component used to drive turbines of turbo-pump units.

1 cl, 4 dwg