| 摘要 |
FIELD: engines and pumps.SUBSTANCE: acoustic damping device for a combustion chamber contains internal and external shells. The internal shell is designed with a possibility of use at the first temperature during operation. The external shell is designed with a possibility of operation at the second temperature below the first temperature during operation. The acoustic damping device also contains a set of flexible plates and at least one hollow housing with internal volume, and each hollow housing is attached to one of a set of flexible plates. The acoustic damping device is designed with a possibility of attachment both to the internal cover, and to the external cover so that the internal volume of at least one hollow housing is interconnected with the chamber formed by the internal shell. The set of flexible plates compensates expansion and compression of the internal shell with reference to the external shell.EFFECT: invention is aimed at minimising of oscillations of pressure waves in the combustion chamber, and also allows to minimise pressure losses in a cooling air flow.19 cl, 8 dwg |
