SPACE ROCKET (VARIANTS) Russian patent published in 2003 - IPC

FIELD: rocketry; designing cases of launch vehicles. SUBSTANCE: proposed space rocket includes zero stage (with tail compartment), sustainer stage and altitude stage and orbital vehicle. Stage and orbital vehicle are secured together by means of connecting and adapter compartments provided with circular strakes and braces. According to one variant, all compartments are made in form of cellular structure with layers of spiral and circular belts forming inclined and circular stiffeners. External load- bearing envelopes of connecting and adapter compartments are provided with local circular strakes made from laminated composite material. Belt are made from unidirectional filaments fastened by polymer binder. Bearing circular strakes made in form of flat plates are located inside compartments and are provided with external and internal circular shelves and many intersection ribs. Ribs and shelves are made from reinforcing filaments on base of high-modulus fibers (carbon or boric fibers) fastened by means of polymer epoxy-containing binder. Brace securing units are fastened with internal circular shelves and walls of connecting and adapter compartments in area of adjacent circular ribs. According to another variant, launch vehicle is provided with tail compartment used as connecting or adapter compartment. EFFECT: enhanced strength and reliability; reduced mass. 4 cl, 8 dwg