Cooled component
AssigneeROLLS-ROYCE plc
InventorsPaul A. HUCKER, Stephen C. HARDING, Alan P. GEARY
Life of this patent
Estimating the term…
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AssigneeROLLS-ROYCE plc
InventorsPaul A. HUCKER, Stephen C. HARDING, Alan P. GEARY
Estimating the term…
A cooled gas turbine engine component comprises a wall having first and second surfaces. The second surface has a plurality of recesses and each recess has a planar upstream end surface arranged so that it hangs over the upstream end of the recess. Each recess has a depth equal to the required depth plus the thickness of the thermal barrier coating to be deposited. The wall has a plurality of angled effusion cooling apertures extending from the first surface towards the second surface. Each effusion cooling aperture has an inlet in the first surface and an outlet in the end surface of a corresponding one of the recesses in the second surface. Each recess has smoothly curved transitions from the end surface and side surfaces to the second surface. Blocking of the effusion cooling apertures by thermal barrier coating is reduced.
A cooled component comprising a wall having a first surface and a second surface, the second surface having a plurality of recesses, each recess having an upstream end and a downstream end, each recess having a planar upstream end surface arranged at an angle of more than 100° to the second surface such that the planar upstream end surface hangs over the upstream end of the recess, each recess having a smoothly curved transition from the planar upstream end surface to the second surface, each recess reducing in depth from the upstream end of the recess to the downstream end of the recess, each recess having side surfaces arranged at an angle of less than 80° to the second surface and each recess having smoothly curved transitions from the side surfaces to the second surface, the wall having a plurality of effusion cooling apertures extending there-through from the first surface towards the second surface, the effusion cooling apertures being arranged at an angle to the first surface, each effusion cooling aperture having an inlet in the first surface and an outlet in a corresponding one of the recesses in the second surface, each effusion cooling aperture extending from the first surface to the planar upstream end surface of the corresponding one of the recesses in the second surface.
Dependencies are inferred from the claim text.