Liquid fuel combustion apparatus

Claim 1

A LIQUID FUEL COMBUSTION APPARATUS FOR GAS TURBINES, COMPRISING AN AIR JACKET CASING HAVING UPSTREAM AND DOWNSTREAM ENDS WITH THE UPSTREAM END BEING ADAPTED TO RECEIVE AIR FROM A COMPRESSOR AND THE DOWNSTRAM END FOR CONNECTION TO A TURBINE HOUSING, AN ANNULAR FLAME TUBE MOUNTED WITHIN THE AIR JACKET CASING IN SPACED RELATIONSHIP THERETO FOR PROVIDING AN ANNULAR SPACE BETWEEN THE OUTSIDE OF THE TUBE AND THE INSIDE OF THE AIR JACKET CASING, SAID FLAME TUBE HAVING UPSTREAM AND DOWNSTREAM END PORTIONS WITH SAID DOWNSTREAM END PORTION BEING PROVIDED WITH A DILUTION ZONE, SAID DILUTION ZONE BEING CONSTITUTED BY A PLURALITY OF EQUI-ANGULARLY SPACED HOLLOW PARTITIONS DIVIDING SAID DOWNSTREAM END PORTION BETWEEN ADJACENT PARTITIONS INTO OUTLET DUCTS, EACH OF SAID HOLLOW PARTITIONS INCLUDING A PAIR OF SIDE WALLS, A DOWNSTREAM WALL AND AN UPSTREAM WALL WITH AIR BEING CAPABLE OF FLOW THROUGH THE PARTITIONS FROM THE OUTER ANNULAR SPACE WITHIN THE AIR JACKET CASING TO THE ANNULAR SPACE WITHIN THE AIR JACKET CASING ON THE INNER SIDE OF THE FLAME TUBE, EACH OF SAID UPSTREAM WALLS BEING CONCAVE AS VIEWED IN LONGITUDINAL CROSS-SECTION OF THE APPARTUS AND CONVEX AS VIEWED IN CROSS-SECTION IN A PLANE PREPENDICULAR TO THE LONGITUDINAL AXIS OF THE APPARATUS, AND SAID PARTITIONS HAVING APERTURES THEREIN THROUGH WHICH DILUTION AIR CAN ENTER THE FLAME TUBE IN A SUBSTANTIALLY CIRCUMFERENTIAL DIRECTION RELATIVE TO THE APPARAUTS AS AN ENTITY.