TURBOMACHINE COMBUSTION CHAMBER PROVIDED WITH AIR DEFLECTION MEANS FOR REDUCING THE WAKE CREATED BY AN IGNITION PLUG

摘要

A device for cooling of an annular wall of a turbomachine combustion chamber provided with micro-perforations, and in particular the cooling of a region of the wall facing a wake induced by an ignition plug, the device includes, a deflector designed to divert air immersing the ignition plug towards a median plane of the wake and towards the annular wall of the combustion chamber, so as to increase the air pressure within the wake in proximity to the annular wall.

主权项

1. A combustion chamber module for a turbomachine, comprising:
an annular enclosure, an annular combustion chamber accommodated in said annular enclosure and including at least one annular wall delimiting said combustion chamber and including a plug port as well as a plurality of micro-perforations to let in cooling air in said combustion chamber for cooling said annular wall, and an ignition plug extending in said annular enclosure and through said plug port, said module being intended to receive an airflow coming from a turbomachine compressor and generally flowing from upstream to downstream of the combustion chamber within said annular enclosure, and a part of which is designed to bypass the combustion chamber by running along said annular wall thereof and by immersing said ignition plug which thus creates a wake, wherein said combustion chamber module further comprises deflection means extending from upstream to downstream by approaching a median plane of said wake and by approaching said annular wall of the combustion chamber, so as to divert, towards said median plane of said wake and towards said annular wall, part of the air immersing said ignition plug.