LIQUID-PROPELLANT THRUST CHAMBER AND ITS CASING Russian patent published in 2000 - IPC

FIELD: manufacture of rocket engines; aircraft engine manufacture. SUBSTANCE: chamber includes casing, ignition devices and injector assembly. Injector assembly includes inner injector face, center face, outer face and bipropellant injectors secured in inner injector face and center face. Part of bipropellant injectors projects beyond inner injector face and other part of injectors is sunken in injector face. Ignition devices include spray nozzles mounted in load-bearing casing behind inner injector face. Axes of spray orifices of spray nozzles are located at acute angle relative to outlet of load-bearing casing and are deflected in transversal plane from longitudinal axis of load-bearing casing in similar direction. Casing of chamber includes combustion chamber and nozzle made from load-bearing envelope and injector wall. Regenerative cooling passage is located between load-bearing envelope and injector wall. Ring slot of curtain belt is made in inner injector wall before nozzle throat section. Regenerative cooling passage has branched inlet. One of its branches is communicated with cavity of cooling passage between nozzle throat section and its exit section; second branch is communicated with cavity of cooling passage before nozzle throat section and third branch is communicated with cavity of cooling passage before ring slot of curtain belt. EFFECT: improved service characteristics of engine; increased service life of engine at repeated lighting-up. 12 cl, 9 dwg