SYSTEM FOR CONTROLLING SPEED OF ROTATION OF LOW PRESSURE ROTOR OF GAS TURBINE ENGINE Russian patent published in 1994 - IPC

FIELD: gas turbine engine engineering. SUBSTANCE: slag-metal melt 34 is treated by plasma flame 35 in homogenizing chamber 6 after plasma treating of scrap 33 in well 2 and enters crucible 14 through hydraulic gate 16. Discharging and collecting of melt 34 is implemented by vacuum suction using submerged pipe 26 with crystallizer 27. The pipe can reciprocate in pressure tight chamber 17 and inductive crucible 14 through sealed opening 18. Ashes and slime from afterburning chamber 9, filter 11 and cooling system 10 are fed to melt 34 through submerged pipe 26 and branch pipe 32 before suction. Casting 36 is thermally treated by using inductive heater 21 and directed for burial. EFFECT: enhanced radiative safety. cl, dwg