FIELD: power engineering; heat exchanger apparatus at preset thermal power. SUBSTANCE: combustion chamber 2 with nozzle 4 fitted in front of it is introduced in air supply branch pipe 1 at circular clearance 10. Passage 11 of nozzle 4 is circular in shape with narrowing inlet cylindrical central part and widening outlet part. Central air supply tube 7 is mounted along axis of nozzle 4 with ignition torch 9 mounted coaxially in this tube forming air supply passage 13. Cylindrical part of nozzle passage 11 is provided with system of holes 6 of fuel manifold 5. Besides that, nozzle passage 11 is provided with anti-flaming screen mounted at outlet of its widening portion and slightly sunken in it. EFFECT: enhanced reliability. 3 cl, 1 dwg
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