METHOD AND DEVICE FOR PROTECTING POWDER REACTION TURBINE OF GYRO-INSTRUMENT AGAINST DYNAMIC UNBALANCE Russian patent published in 1998 - IPC

FIELD: controlled projectiles. SUBSTANCE: turbine is balanced out with electric initiator simulator. Electric initiator is burned out in center of turbine space. Solid particles of combustion products are adsorbed. Powder gases are concentrated into jets and conveyed to charge surface. Initiator and charge are relatively revolved. Powder charge is loosely placed in reaction turbine casing. Electric initiator is placed in channel formed in charge. Afterburner in the form of shell is mounted on turbine shaft. A number of throttling ports are provided in side wall of shell. Ports are perpendicular to inner surface of charge. Shell is mounted so as to ensure clearance between outer surface of its side wall and powder charge. Passage area of throttling ports is larger than area of tangential nozzles provided in casing. EFFECT: increased operating time of gyro-instrument due to protection of turbine against dynamic unbalance when accelerated by powder gases. 3 cl, 2 dwg