Method of supplying air to the combustion zone of a combustion chamber, and combustion chamber for carrying out this method

The method consists in the fact that the velocity of the air flow in the diffusor is reduced to a value which is not less than the predetermined velocity with which the air is supplied to the combustion zone of the combustion chamber, and that the splitting of the air flow into annular jets and the swirling of these jets in the flame-holding device is carried out without increasing the flow velocity of these jets. In the combustion chamber, the flame-holding device lies at least partly in the diffuser (5), and the stabilizer (7) and the blades of the swirling means (6) of the same have such a form that, over the section from the entrance into the diffuser (5) up to the exit from the swirling means (6), the area S of the passage cross-section of the combustion chamber changes in accordance with the expression dS/dx >/= 0, where x denotes an axial coordinate of the respective cross-section.