LIQUID-PROPELLANT ENGINE Russian patent published in 2012 - IPC F02K9/52 F02K9/60 

FIELD: engines and pumps.

SUBSTANCE: liquid-propellant engine includes chamber with mixing head including the housing, oxidiser supply unit, fuel supply unit and flame bottom. Coaxial spray injectors include hollow tip attaching the oxidiser cavity to combustion zone, sleeve enclosing the tip with a gap and attaching the fuel cavities to combustion zone. At that, in outlet part of the tip there located are pylons interacting with inner sleeve surface and aligning the tip relative to the sleeve, and located in mixing head along concentric circles and forming central and peripheral zones. Engine includes gas generator, turbo-pump unit, power supply and control units. In pylons of injector tips there made are channels one end of which opens to the tip cavity and the other one - to the combustion chamber cavity; discharge nozzle is installed in the outlet part of hollow tip with the possibility of being replaced.

EFFECT: improving combustion efficiency of fuel components by giving the form of shaped cross section to the outlet part of oxidiser jet without prominent central part.

2 cl, 3 dwg