CHAMBER OF LIQUID-PROPELLANT ENGINE Russian patent published in 2013 - IPC F02K9/52 

FIELD: engines and pumps.

SUBSTANCE: chamber of a liquid-propellant rocket engine comprises a regeneratively cooled combustion chamber with critical section and a nozzle, a mixing head comprising a body, a unit of oxidant supply, mostly, oxygen, a unit of main fuel supply, a unit of additional fuel supply, a unit of a flame bottom. In the specified units along concentric circumferences there are coaxial jet nozzles installed, which create central and peripheral areas. The coaxial jet nozzles include a hollow tip, which connects the oxidant cavity with the combustion zone, a bushing covering the tip with a gap and connecting the cavity of the first fuel with the combustion zone, at the same time in tips of nozzles of the central zone in the outlet part there are radially arranged slots made in the form of alternating ledges and grooves, besides, in the bushing, between ledges of the tip, there are channels, the output part of which opens towards the combustion area, the inlet one connects with the cavity of additional fuel.

EFFECT: higher cost-effectiveness of a working process.

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