Combustor floating collar mounting arrangement

A floating collar assembly for receiving a fuel nozzle or an igniter, the floating collar assembly comprising:

• a first floating collar and a second floating collar configured for mounting outside a combustor shell extending along an axis, the first floating collar and the second floating collar spaced-apart in a circumferential direction around the axis of the combustor shell, the first floating collar and the second floating collar each having an opening configured and sized for alignment with an opening in the combustor shell, and
• a retaining bracket configured for mounting to studs extending outwardly of the combustor shell, the retaining bracket having a first enlarged end portion covering the first floating collar and a second enlarged end portion covering the second floating collar, the first enlarged end portion and the second enlarged end portion joined by a bridge, the first enlarged end portion defining a first opening in registry with the opening of the first floating collar, the second enlarged end portion defining a second opening in registry with the opening of the second floating collar, a first tab projecting from the first enlarged end portion on a side of the first floating collar opposite to the bridge in the circumferential direction, a second tab projecting from the second enlarged end portion on a side of the second floating collar opposite to the bridge in the circumferential direction, the first and second floating collars disposed between the first and second tabs in the circumferential direction, the first tab and the second tab each defining a hole configured to receive an associated one of the studs, the first floating collar and the second floating collar configured to be trapped between the combustor shell or another structure external to the combustor shell and the retaining bracket when the retaining bracket is mounted to the combustor shell.