Fuel injector mounting system
AssigneeROLLS-ROYCE plc
InventorMichael L Carlisle
Life of this patent
Estimating the term…
Abstract
A combustor is provided for mounting a fuel injector to a gas turbine engine. The combustor comprises an engine casing having an aperture formed therein. The system further comprises a fuel injector having a flange for mounting the fuel injector to the casing at the aperture so that the fuel injector extends into the engine. The flange is dismountably sealed to an inner side of the casing. The aperture and flange are configured so that, when dismounted, the fuel injector can be rotated into an orientation relative to the aperture which allows the flange to pass though the aperture and the fuel injector to be withdrawn from the casing.
Claims15
A combustor for a gas turbine engine, the combustor comprising:
- an engine casing having an aperture formed therein, and
- a fuel injector having a flange for mounting the fuel injector to the engine casing at the aperture so that the fuel injector extends into the gas turbine engine, wherein
- the flange is dismountably sealed to an inner side of the casing, and
- when dismounted, the fuel injector is rotatable into an orientation relative to the aperture to pass the flange through the aperture to withdraw the fuel injector though the aperture from the inside to the outside of the engine casing.
A method of assembling and/or disassembling a combustor, the combustor comprising an engine casing having an aperture formed therein, and a fuel injector having a flange for mounting the fuel injector to the engine casing at the aperture so that the fuel injector extends into the engine wherein the flange is dismountably sealed to a radially inner side of the engine casing, wherein the aperture is non-circular and has a major dimension and the flange is correspondingly non-circular and has a major dimension which is longer than the major dimension of the aperture such that the flange covers the aperture when the flange is sealed to the inner side of the engine casing with the major dimension of the aperture and the major dimension of the flange aligned with each other, and wherein a further dimension of the flange is shorter than the major dimension of the aperture, the method comprising the steps of:
- rotating the fuel injector into an orientation in which the further dimension of the flange is aligned with the major dimension of the aperture, and
- passing the flange through the aperture.
Dependencies are inferred from the claim text.