Externally-mounted aircraft engine component
A component for an aircraft engine. The component is mountable externally to a core of the aircraft engine. The component includes an enclosure having a wall circumscribing a sealed inner chamber. The wall has an inner surface and an outer surface. The wall has a first wall portion welded to a second wall portion along a weld line extending about a perimeter of the enclosure. A mounting bracket is disposed on the outer surface for mounting the component to the core. A protrusion protrudes from one or more of the outer surface and the inner surface and extends along one or more of the outer surface and the inner surface concentrically with the weld line. Sn additional protrusion protrudes from one or more of the outer surface and the inner surface. The additional protrusion extends from the protrusion to the mounting bracket.
1 . A component for an aircraft engine, the component mountable externally to a core of the aircraft engine, the component comprising:
an enclosure having a wall circumscribing a sealed inner chamber, the wall having an inner surface and an outer surface, the wall having a first wall portion welded to a second wall portion along a weld line extending about a perimeter of the enclosure;
a mounting bracket disposed on the outer surface for mounting the component to the core;
a protrusion protruding outwardly from the outer surface and inwardly from the inner surface and extending along the outer surface and the inner surface concentrically with the weld line about the perimeter of the enclosure; and
an additional protrusion protruding from one or more of the outer surface and the inner surface, the additional protrusion extending along the one or more of the outer surface and the inner surface between a first additional protrusion end at the protrusion and a second additional protrusion end at the mounting bracket;
wherein the additional protrusion has a curved cross-sectional profile at a junction with the one or more of the outer surface and the inner surface.
2 . The component of claim 1 , wherein the protrusion has a width that varies along the perimeter of the enclosure.
3 . The component of claim 2 , wherein the width of the protrusion varies in two directions along the perimeter of the enclosure.
4 . The component of claim 1 , wherein the protrusion is disposed adjacent to the weld line.
5 . The component of claim 4 , wherein the protrusion is disposed axially between the weld line and the mounting bracket relative to an axis extending along a length of the component.
6 . The component of claim 1 , wherein the first wall portion is formed of cast metal and the second wall portion is formed of sheet metal.
7 . The component of claim 1 , wherein the protrusion has a width that is constant along the perimeter of the enclosure.
8 . The component of claim 1 , wherein the component is an oil tank, and wherein the additional protrusion extends along a direction aligned with a direction of stresses which the oil tank is subjected.