LAUNCH VEHICLE Russian patent published in 1997 - IPC

FIELD: rocketry and space engineering working on propellant couple: unsymmetrical dimethylhydrazine (fuel) and nitric tetraxide (oxidizer). SUBSTANCE: launch vehicle 1 includes propellant tank 2 for nitrogen-containing liquid rocket propellant oxidizer tank 3, reservoir 4 for cross-linking agent of nitrogen-containing liquid rocket propellant system for supply of cross-linking agent to propellant tank 2 including pressure accumulator 5, bursting valve 6 electrically connected with launch vehicle control system, high-pressure manifold 8, low-pressure manifold 9, starting cut-off valve 10 electrically connected with control system of launch vehicle. Cross-linking agent reservoir 4 is provided with diaphragm 11 dividing reservoir 4 into gas chamber 12 connected hydraulically with pressure accumulator 5 and liquid chamber 13 connected with tank 2 by means of spraying device 14 and filling valve 15. Cross- linking agent reservoir 4 may be located in tank 2 and may be attached to launch vehicle case. Cross-linking agent NAVOLIT may be used as nitrogen-containing liquid rocket propellants. EFFECT: enhanced efficiency. 3 cl, 4 dwg