FIELD: mechanical engineering; engines. SUBSTANCE: proposed gas-turbine engine, particularly, its nozzle assembly with axial flowing of gas, has number of adjacent segments spaced over circumference. Each segment has first surface which is in contact with hot gas flow, and opposite surface, in contact with cooling air flow. Each end face surface of segment is adjacent to end face surface of other segment. Neighbor segments are installed with clearance. Each end face surface is provided with slot supplementing the slot made on end face surface of adjacent segment. Each slot has hot and cold side surfaces and sealing insert to be installed in slots between neighbor segments. Several hot grooves are made on each hot side surface of slots. Each hot groove communicates with cooling air supply line and opens into clearance arranged in staggered order relative to hot groove outlet in neighbor segment. Outlet of cooling air, delivered through hot groove into clearance, is arranged in staggered manner relative to outlet of air from hot groove of neighbor segment. EFFECT: improved cooling at minimum reduction of efficiency. 8 cl, 4 dwg
