公开(公告)号：US09957811B2

公开(公告)日：2018-05-01

申请号：US14872511

申请日：2015-10-01

Applicant: ROLLS-ROYCE PLC

Inventor： Paul A Hucker ,  Stephen C Harding ,  Alan P Geary

IPC: F01D5/00 ,  F01D5/18 ,  F01D9/06 ,  F23R3/00

CPC classification number: F01D5/186 ,  F01D5/188 ,  F01D9/065 ,  F05B2260/202 ,  F05D2240/81 ,  F05D2260/202 ,  F23R3/002 ,  F23R3/005 ,  F23R2900/00018 ,  F23R2900/03041 ,  F23R2900/03042 ,  F23R2900/03043

Abstract: 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.

公开(公告)号：US11293640B2

公开(公告)日：2022-04-05

申请号：US16819354

申请日：2020-03-16

Applicant: ROLLS-ROYCE plc

Inventor： Paul A Hucker ,  Iain Morgan ,  Alan P Geary

IPC: F23R3/28 ,  F23R3/00 ,  B33Y80/00

Abstract: The present relates to combustor apparatus for a gas turbine engine comprising a bulkhead (34) an inner support ring (70) and an outer support ring (84) at end upstream end thereof. The bulkhead (34) has an inner surface (40), when in use is provided on an internal surface of a combustor (16) and exposed to combustion products and an outer surface (41) provided on an external surface of the combustor when in use; an inner mating feature to cooperate with the inner support ring (70); and an outer mating feature to cooperate with the outer support ring (84). In use, the inner and outer mating features prevent axial motion of the bulkhead relative to the inner (70) and outer (84) support rings.