LIQUID-PROPELLANT ENGINE CHAMBER MIXING HEAD Russian patent published in 2012 - IPC F02K9/52 

FIELD: engines and pumps.

SUBSTANCE: mixing head of liquid-propellant engine (LPE) chamber includes housing, oxidiser supply unit and fuel supply unit. Injectors consisting of several coaxially installed sleeves forming annular cavities for supply of gaseous fuel and liquid oxidiser are installed in mixing head along concentric circles and connect the cavities of units to the cavity of combustion chamber. On each sleeve there is annular projection in which there made are perpendicular axes of mixing element, slots for fuel supply inside each annular fuel cavity and parallel slots for oxidiser supply to each annular oxidiser cavity. Annular cavities for supply of fuel components on the side of combustion chamber cavity are covered with spacer plates in which there made are holes for supply of fuel components to combustion zone, mainly to combustion chamber cavity. All sleeves on the side opposite to combustion zone are installed close to each other; at that, in their end walls there made are channels connecting the oxidiser cavity to annular oxidiser cavities formed with coaxially installed sleeves.

EFFECT: higher combustion efficiency of fuels of various types at smaller number of mixing elements on injector head.

2 dwg