| 摘要 |
FIELD: gas-turbine engine engineering. ^ SUBSTANCE: flame tube comprises shell and at least one unit for supplying coolant made of openings arranged in the peripheral direction in the shell. The unit for supplying coolant is additionally provided with the grooves connected with the openings. The grooves are made in the inner side of the shell in the peripheral direction at a distance one from the other . The distance ranges from 0.5h to 3h, depth L of each groove ranges from 3h to 15h, and width S of each groove ranges from 2h to 15h, where h is the height of the groove. ^ EFFECT: enhanced reliability. ^ 1 cl, 3 dwg |
