Patent ID: 7926280

Claim:
A floating collar and combustor arrangement for receiving a fuel nozzle, comprising: a combustor having an opening defined in a dome thereof for receiving the fuel nozzle, the combustor having an inner surface and an outer surface; a heat shield mounted to said dome inside said combustor at a distance from said inner surface, a floating collar axially trapped between the heat shield and the inner surface of the combustor such that relative axial movement is substantially restrained but relative radial movement is permitted, the floating collar having a central aperture substantially aligned with the opening in the dome; and a nozzle cap adapted to be mounted on said fuel nozzle for providing an axial interface between the floating collar and the fuel nozzle, the nozzle cap being axially moveable in said central aperture of said floating collar, said nozzle cap having axially spaced-apart leading and trailing end portions, and wherein said nozzle cap is provided at said trailing end portion with a catch which is adapted to abut said floating collar to prevent a tip of the fuel nozzle from being over-inserted into the combustor.