Patent ID: 8677765

Claim:
A gas turbine combustion chamber comprising: a combustion chamber head made from a metallic material and mounting at least one burner, a combustion chamber wall made from a ceramic material and having an aperture, at least one chosen from an igniter plug and other combustion chamber attachments is arranged in the aperture of the combustion chamber wall, and a seal arranged in an area of the aperture, a metallic holding mechanism mounting the seal, the metallic holding mechanism supported from a component other than the combustion chamber wall; the holding mechanism having a rectangular cross-section and including both a radial degree of freedom and a degree of freedom transverse to the radial degree of freedom, enabling a relative movement of the seal with respect to the combustion chamber wall in both a radial direction and a direction transverse to the radial direction; wherein the holding mechanism comprises a leaf spring having a seal receiving aperture therethrough for receiving a portion of the seal; the seal having a longitudinal axis and an enlarged portion positioned between the holding mechanism and the combustion chamber wall, the enlarged portion having a dimension transverse to the longitudinal axis that is larger than a dimension of the seal receiving aperture such that the seal is retained between the holding mechanism and the combustion chamber wall.