FIELD: gas turbines. SUBSTANCE: proposed quasiadiabatic ceramic nozzle assembly of high- temperature gas turbine contains peripheral and root ceramic rings, nozzle vanes and peripheral and root metal carrying rings. Peripheral and root ceramic rings are split, forming separate sectors-webs between cuts. Pair-mated right-hand and left-hand ends of sectors-webs are provided with suction faces and pressure surfaces forming adjacent profiled space identical in shape to corresponding end of airfoil portion of ceramic nozzle vane when adjacent sectors-webs are butt- joined. Peripheral metal carrying ring is made up of symmetrical left-hand and right-hand rings connected by fasteners with metal spacers-washers installed between and clamped. Root metal carrying ring is provided dovetail slot from outside and cross mounting cuts, and at least one ring fixing tooth from inner side. EFFECT: improved reliability of ceramic nozzle assembly. 14 cl, 7 dwg
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