ROCKET ENGINE CHARGE Russian patent published in 2003 - IPC

FIELD: rocketry. SUBSTANCE: proposed charge for rocket engine burning from end face is made sectional, being composed of propellants featuring different burning rates. Said charge provides stepped thrust in rocket engine. Charge is made three-sectional from one kind of composite solid propellant with introduction of ultradispersed aluminum into each propellant section at the following ratio of ultradispersed aluminum relative to mixture with oxidizer, mass %: section 1 - 5 - 15% of with specific surface of aluminum particles or 5 - 10 sq.m/g; section 11 - 10 - 40% with specific surface of aluminum particles of 7-12 sq.m/g; section 111 - 3 - 60% with specific surface of aluminum particles of 10 -20 sq.m/g. Invention makes it possible to create charge manufactured by pressure casting method or method of pass-pressing, with propellant burning rates changing within wide range. EFFECT: provision of stepped thrust in rocket engine. 1 tbl, 3 dwg