System for ventilating the wall of a combustion chamber in a turbomachine

The system has an L-sectioned annular downstream end-piece (28) connected to an annular diffuser (12) and extending towards downstream to an air injection unit (42) for ventilating a turbine. An annular convection metal sheet (100) is arranged radially between a tapered shaped annular combustion cha...

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Bibliographische Detailangaben
Hauptverfasser:	Hernandez, Didier, Commaret, Patrice, Locatelli, David
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	The system has an L-sectioned annular downstream end-piece (28) connected to an annular diffuser (12) and extending towards downstream to an air injection unit (42) for ventilating a turbine. An annular convection metal sheet (100) is arranged radially between a tapered shaped annular combustion chamber (14) and the end-piece. The sheet extends axially from the diffuser to the unit along a radial internal wall (48) of the chamber to delimit an annular internal air flowing stream (90), with the wall. The stream supplies air through holes in the wall of the chamber and the unit.