Patent ID: 7101173
Filing Date: 2006-09-05
Classification: F02C,F23R,Y02T

Abstract:
1. A combustion chamber comprising a chamber wall disposed radially inside a casing, an igniter plug for igniting the air-fuel mixture, the plug being mounted on said casing and comprising a body with a free end that is disposed in an opening formed through said chamber wall with a sufficient amount of clearance to accommodate relative displacement between said casing and said chamber wall, and a sealing device provided between said body and the perimeter of said opening, said sealing device comprising an annular plug-guide surrounding the body of the plug and including a disk that is slidably mounted in an annular housing provided in a radially outer portion of an annular support secured to said perimeter, wherein the support is secured to the radially-outer portion of a chimney passing through said opening and presenting at its radially-inner end a collar bearing against the inside face of the chamber wall, and wherein a cooling circuit for said collar is provided.