Patent ID: 8875484

Claim:
A turbomachine combustion chamber including at least one ignition plug carried by an outer casing and extending within guide means carried by a wall of the chamber, the wall forming a body of revolution, and including a tubular guide having the plug passing axially therethrough and mounted with axial and transverse clearance on a chimney fastened to the wall of the chamber and opening out into the chamber, the guide extending at least in part in an air flow stream outside the chamber, wherein the guide means comprise a deflector reducing aerodynamic pressure of the air flow stream on the guide and reducing a contact pressure of the guide on the plug, a distance between the wall of the chamber and a free outer edge of the deflector being greater than a distance between the wall of the chamber and a free outer edge of a portion of the guide that extends in the air flow stream and surrounding an upstream portion of the guide that is situated in the air flow stream, relative to a flow direction in the air flow stream.