AIR FILM COOLING DEVICE FOR FLAME TUBE OF GAS TURBINE ENGINE

摘要

P AIR FILM COOLING DEVICE FOR A GAS TURBINE ENGINE FLAME TUBE FORMING A CONNECTING PART BETWEEN A DOWNSTREAM SECTION 1 AND AN UPPER SECTION 2 OF THE TUBE. IT IS CONSISTED OF AN EXTERNAL WALL 7 AND AN INTERNAL WALL 8 HAVING EACH A CYLINDRICAL PORTION 14, 15. THE EXTERNAL WALL HAS RADIAL ORIFICES 10. THE CYLINDRICAL PORTION 14 OF THE EXTERNAL WALL 7 IS CONNECTED IN DOWNWARD BY A PORTION CONICAL 16 TO THE AVAL SECTION 1 OF THE TUBE. THE EXTERNAL WALL, BEYOND THE CONICAL PORTION, AND THE INTERNAL WALL CONSTITUTING THE SLOT 13 IN THE FORM OF CANAL ANNULAIRE. THE UPPER PORTIONS OF THE INTERNAL AND EXTERNAL WALLS CONNECT TO THE UPSTREAM SECTION 2 OF THE FLAME TUBE BY CONICAL PORTIONS 17. / P