FIELD: engines and pumps.
SUBSTANCE: proposed method consists in feeding fuel components in combustion chamber via coaxial aligned-jet nozzle communicating oxidiser chamber with combustion zone and including sleeve covering with clearance the nozzle to communicate fuel zone with combustion zone arranged in mixing head in concentric circles to make central and peripheral zones. Note here that at first stage mode oxygen is fed into combustion chamber via hollow nozzle with developed outlet surface of aligned-jet nozzle while hydrogen is fed via shaped gap between said nozzle and said sleeve and kerosene is fed via channels made in said sleeve. Note also that outlet section of said channels opens into combustion chamber while their outlet communicates with kerosene unit chamber. Besides said chamber in said sleeve is connected with circular groove made at sleeve end and connected with combustion zone. Note here that at second and further stages oxygen is fed into combustion chamber via hollow nozzle with developed outlet surface of aligned-jet nozzle while hydrogen is fed via shaped gap between sais nozzle and said sleeve. Proposed nozzle comprises casing with hollow atomiser. Outlet of the latter has radial grooves composed by alternating recesses and ledges communicating oxidiser chamber with combustion zone, sleeve to house said atomiser with clearance and to connect hydrogen chamber with combustion zone. Note that said radial grooves are arranged so that perimetre of jet central part confined by generating lines of beams does not exceed 3s while beam length makes 2.3…2.5s, where s is beam thickness. Note also that the channels made between atomiser ledges with outlets open sleeve chamber and inlets communicated with kerosene chamber. Note also that the sleeve between nozzle ledges has channels with outlets open to fire zone.
EFFECT: better fuel mix mixing.
2 cl, 3 dwg
