BONDER CHARGE Russian patent published in 2002 - IPC

FIELD: solid-propellant rocket engines. SUBSTANCE: bonded solid-propellant charge has organic plastic case of high aspect ratio with internal heat-protective coat and channel slotted charge bonder to it; it is made from propellant containing plasticizing agent; layer of heat-protective coat bonded with charge also contains plasticizing agent. Layer of heat-protective coat is divided along length of case into two parts: one part located opposite slots of charge contains mechanical inclusions of asbestos fiber. Heat-protective coat in rear part of case contains erosionresistant layers (for example, asbestos Dacron fabric coated with rubber). Liquid in between layer of heat-protective coat containing plasticizing agent and organic plastic case is layer of rubber containing neither plasticizing agent nor mechanical inclusions. EFFECT: reduced mass; enhanced reliability of change. 2 cl, 1 dwg