METHOD OF PROTECTION OF SOLID-PROPELLANT ROCKET ENGINE WITH CASE-BONDED CHARGE Russian patent published in 1998 - IPC

FIELD: protection of rocket engines operational loads. SUBSTANCE: method includes boosting the charge through gas saturation of fuel with easily dissolving gas and keeping the charge under pressure till equilibrium concentration is obtained followed by diffusion removal of gas at controlled reduction of pressure. EFFECT: improved strength serviceability and increased service life of charge due to compensation of braking stress at bonding boundary and reduction of level of tensile deformation; enhanced deformability of fuel in area adjoining charge duct. 1 tbl