Combustion equipment

Combustion equipment for use in a gas turbine engine. The combustion equipment has an inner case and an outer case, wherein the outer case encloses the inner case so that a cavity is located between the inner and outer cases. The combustion equipment also has a fuel delivery device for use in delivering fuel into a combustion region within the inner case, wherein the fuel delivery device passes through a hole in the outer case and a corresponding hole in the inner case. The combustion equipment also has a seal assembly configured to seal the hole in the outer case through which the fuel delivery device passes so as to inhibit pressurised gas in the cavity located between the inner and outer cases from leaking out from the hole in the outer case when the combustion equipment is in use. The seal assembly includes a flexible sleeve that extends around the fuel delivery device and interconnects the inner case with the outer case, the flexible sleeve being configured to flex so as to permit relative movement of the inner and outer cases when the combustion equipment is in use.