Gas turbine fuel nozzle seal
AssigneeGeneral Electric Company
InventorJonathan Munshi
Life of this patent
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Abstract
A fuel nozzle (10) for a gas turbine includes an annular nozzle body (12) having a forward end with interior and exterior surfaces; a gas tip (14) having a forward fuel discharge end and a rearward mounting end, the rearward mounting end at least partially receivable in the forward end of the nozzle body (12); a resilient seal (38) inserted between the nozzle body (12) and the gas tip (14); a seal ring (26) mounted on the rearward mounting end of the gas tip (14), adapted to axially compress the resilient seal (38) when the seal ring (26) is engaged with the nozzle body (12); and a locking sleeve (48) on the exterior surface of the nozzle body (12) for locking the seal ring ( 26 ) to the gas tip ( 14 ).
Claims13
A fuel nozzle for a gas turbine comprising:
- an annular nozzle body having a forward end with interior and exterior surfaces;
- a gas tip having a forward fuel discharge end and a rearward mounting end, the rearward mounting end at least partially receivable in said forward end of said nozzle body;
- a resilient seal inserted between said nozzle body and said gas tip;
- a seal ring mounted on said rearward mounting end of said gas tip, adapted to axially compress said resilient seal when the seal ring is engaged with said nozzle body;
- and
- means on said exterior surface of said nozzle body for locking said seal ring to said gas tip.
A method of assembling a gas tip to a fuel nozzle body in a fuel nozzle wherein the fuel nozzle comprises:
- an annular nozzle body having a forward end with interior and exterior surfaces;
- a gas tip having a forward fuel discharge end and a rearward mounting end, the rearward mounting end at least partially receivable in said forward end of said nozzle body;
- a resilient seal inserted between said nozzle body and said gas tip;
- an adjustable seal ring mounted on said rearward mounting end of said gas tip, adapted to axially compress said resilient seal when the seal ring is engaged with said nozzle body;
- a) attaching the seal ring to the gas tip;
- b) attaching the resilient seal to the gas tip axially behind the seal ring;
- c) attaching the gas tip, seal ring and resilient seal to the nozzle body;
- and
- d) moving the seal ring rearwardly to engage the nozzle body with the resilient seal axially compressed therebetween.
Dependencies are inferred from the claim text.