FIELD: manufacture of engines. SUBSTANCE: section has housing 1 whose chamber 2 receives flame tube 3 connected with reducing branch pipe 5 secured on diaphragm 4 and casings 7 and 8 forming circular passage 6 around each branch pipe 5 and each flame tube. Casings 7 and 8 are rigidly interconnected. Other end of casing 7 is mounted for engagement with housing. Other end of casing 8 is articulated on the housing. Circular passage of casing 8 is brought in communication with chamber 2 of housing. EFFECT: enhanced reliability. 2 dwg, 1 tbl
