Combustor liners
AssigneeALSTOM Technology Ltd
InventorRené´ James Webb
Life of this patent
Estimating the term…
Abstract
A combustor liner for use in a gas turbine engine includes a first liner section and a second liner section. They are joined together by welding or a mechanical fixing along a common join line or weld. A heat shield extends along the join line to protect it from the high temperatures and thermal stresses that are experienced by the combustor liner during the operation of the gas turbine engine. The heat shield is spaced apart from the joint line to define a passage between the heat shield and the first and second liner sections for the introduction of a cooling fluid such as air. The heat shield and the exposed surfaces of the liner sections are coated with a thermal barrier coating.
Claims15
A combustor liner comprising a first liner section and a second liner section joined together along a common join line, and a heat shield that together with the first and second liner sections forms a substantially continuous inner surface of the combustor, the heat shield extending along the join line but spaced apart therefrom to define a passage between the heat shield and the first and second liner sections for the introduction of a cooling fluid, the passage being closed to a combustion chamber by the substantially continuous inner surface, thereby to restrain the cooling fluid from entering the combustion chamber.
A combustor liner comprising a first liner section and a second liner section joined together along a common join line, and a heat shield that together with the first and second liner sections forms a substantially continuous surface of the combustor, the heat shield extending along the join line but spaced apart therefrom to define a passage between the heat shield and the first and second liner sections for the introduction of a cooling fluid, the heat shield being separately formed and joined to at least one of the first and second liner sections.
A combustor liner comprising a first liner section and a second liner section joined together along a common join line, and a heat shield that together with the first and second liner sections forms a substantially continuous surface of the combustor, the heat shield extending along the join line but spaced apart therefrom to define a passage between the heat shield and the first and second liner sections for the introduction of a cooling fluid, wherein adjacent edges of the first and second liner sections include a first part and a second part defining a u-shaped channel, wherein the first parts of the first and second liner sections are joined together along the common join line, and wherein the second parts of the first and second liner sections extend along the join line to form the heat shield.
A combustor liner comprising a first liner section and a second liner section joined together along a common join line, and a heat shield that together with the first and second liner sections forms a substantially continuous surface of the combustor, the heat shield extending along the join line but spaced apart therefrom to define a passage between the heat shield and the first and second liner sections for the introduction of a cooling fluid, wherein the heat shield is separately formed and joined to at least one of the first and second liner sections, wherein adjacent edges of the first and second liner sections include a first part and a second part defining a u-shaped channel.
Dependencies are inferred from the claim text.