ROCKET Russian patent published in 2003 - IPC

FIELD: rocket engineering. SUBSTANCE: rocket includes main stage, separable boost motor and adapter that joins them. Stern part of main stage comes in the form of double coaxial body closed on one side. Directing branch pipe and transition frame pressed against face of internal body by split nut and against face of motor by coupling nut are mounted for movement on internal body, on side of bottom part. Directing branch pipe and coupling nut are joined by U-shaped locks and are moved apart by spacer nut, split nut embraces telescopic piston and is integrated with it with the help of radial ring key. Front cover of motor has shape of sleeve which space communicates with combustion chamber of motor through hole and is insulated by rear bottom of telescopic piston which front bottom insulates space of internal body with pyrotechnic composition. Both bottoms of piston are united telescopically by means of external shells and central pipe union with formation of ring chamber connected to combustion chamber of motor through throttling hole and fixed against relative motion by stop. Central pipe union is fitted with ray igniter insulated from ring chamber by obturator on one side and open to precombustion chamber of igniter of pyrotechnic composition on other side. EFFECT: reliable separation of stages of rocket while their cross-section differ insignificantly and only after termination of operation of boost motor which prevents its action on main stage of rocket. 1 cl, 5 dwg