JET ENGINE Russian patent published in 1999 - IPC

FIELD: aerospace equipment, solid-fuel jet engines. SUBSTANCE: technical object of invention consists in increased specific thrust pulse of engine, in increased power and simplification of design which are achieved thanks to manufacture of solid-fuel charge in jet engine that includes body, combustion chamber with solid-fuel charge and nozzle in the form of propellant grain. Central combustion chamber is formed in propellant grain in the form of conical recess, additional combustion chambers located in end face part of propellant grain are formed around central chamber. EFFECT: increased specific thrust pulse, increased power and simplification of design of engine. 4 cl, 2 dwg