ANNULAR COMBUSTION CHAMBER OF GAS TURBINE ENGINE Russian patent published in 2008 - IPC F23R3/50 

FIELD: engines and pumps.

SUBSTANCE: annular combustion chamber of gas turbine engine contains external and internal axial walls and chamber bottom connecting the aforesaid axial walls. Chamber bottom includes the multiple set of injection openings designed to ensure at least fuel injecting to combustion chamber from one side and the multiple set of channels ensuring at least initial formation of cooling air film along the hot internal surface of external axial wall and initial formation of cooling air film along the hot internal surface of the internal axial wall from the other side. The internal and external axial walls are perforated along the whole wall length to intensify cooling effect of air films. Each of the aforementioned external and internal axial walls includes the first zone of openings on the front side. The openings are made so that they can supply cooling air by counter flow inside combustion chamber.

EFFECT: high rate of even combustion chamber walls temperature and increase of cooling air films thickness formed from combustion chamber bottom.

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