MIXING HEAD OF LIQUID-PROPELLANT ENGINE CHAMBER Russian patent published in 2017 - IPC F02K9/52 

FIELD: rocket technics.

SUBSTANCE: invention relates to rocketry, namely to chambers of liquid-propellant rocket engines (LPE), and can be used in designing highly efficient mixing heads and LPE chambers for promising launch vehicles. Mixing head of a liquid-propellant engine chamber comprises an outer, a mid and a combustion bottom interconnected with nozzles, studs, by soldering and welding. Fuel and oxidant nozzles are located chequer-wise in the combustion bottom with the transition in the peripheral portion of the head to circumferentially spaced. Arranged on sides of a square in the central part of the mixing head and nozzles at each side of the square on beams extending from the square to the periphery are made extending into the combustion cavity of the chamber beyond the combustion bottom to make anti-pulsation partitions. Every peripheral nozzle extending relative to the combustion bottom is a fuel nozzle and is located at points of intersection of the circle of studs with the said beams of the extending nozzles location. Beams are an extension of the sides of the square and connect its tops to the peripheral zone of the mixing head. Studs are arranged on the circle in the mixing head peripheral zone, herewith in each stud there are made at least three channels connecting the combustion chamber cavity with the cavity formed by the mid and the combustion bottoms, herewith the outlet part of the said channels is located parallel to the axis of the combustion chamber.

EFFECT: invention provides higher reliability and stability of operation of the mixing head, as well as increased specific burst of the LPE.

1 cl, 3 dwg