公开(公告)号：US20180128117A1

公开(公告)日：2018-05-10

申请号：US15786815

申请日：2017-10-18

Applicant: ROLLS-ROYCE plc

Inventor： Anthony J. RAWLINSON ,  Salwan SADDAWI

IPC: F01D5/18

CPC classification number: F01D5/189 ,  F01D9/02 ,  F05D2240/121 ,  F05D2240/122 ,  F05D2240/303 ,  F05D2240/304 ,  F05D2250/32 ,  F05D2260/201 ,  Y02T50/676

Abstract: A self-sealing impingement cooling tube comprises a perimeter wall (51) defining a first end (54) and a second end (53), for example these may be a trailing edge and leading edge ends of an aerofoil. First and second wall sections extend from the first end (54) to the second end, the first and second wall sections joining at the first end. An adjustable gap (53) resides between the wall sections at the second end. One or both of the first and second wall sections is resiliently deformable such that the first and second wall sections can be positioned closer together and the adjustable gap (53) simultaneously reduced whereby to enable the tube to be inserted into a cavity which has a dimension smaller than the distance between the first and second wall sections when the perimeter wall (51) is not under load.

公开(公告)号：US20200224875A1

公开(公告)日：2020-07-16

申请号：US16720412

申请日：2019-12-19

Applicant: ROLLS-ROYCE plc

Inventor： Alexander V. MURRAY ,  Peter T. IRELAND ,  Eduardo ROMERO ,  Anthony J. RAWLINSON

IPC: F23R3/00

Abstract: There is disclosed wall cooling system 50 having a double-wall geometry. A first wall 55 and a second wall 60 extend over a plan area with the second wall spaced from the first wall by a gap. The first wall 55 has multiple upstanding members 65 spanning the gap and contacting the second wall 60 such that the first and second walls are mechanically and thermally connected. The first wall 55 is shaped so as to provide a two-dimensional array of crests 85 and recesses 90. The crests 85 are spaced from the second wall 60. The first wall 55 has a plurality of through-holes 70 for flow of coolant through the first wall and into the gap. The cooling system 50 is suitable for use in a gas turbine engine 10, for example in the turbine 17, 19.

公开(公告)号：US20180100403A1

公开(公告)日：2018-04-12

申请号：US15705804

申请日：2017-09-15

Applicant: ROLLS-ROYCE plc

Inventor： Anthony J. RAWLINSON

IPC: F01D9/04 ,  F01D5/30 ,  F01D5/08

CPC classification number: F01D9/044 ,  F01D5/081 ,  F01D5/303 ,  F01D5/3061 ,  F05D2230/237 ,  F05D2230/64 ,  F05D2240/10 ,  F05D2240/12 ,  F05D2240/81 ,  F05D2260/30

Abstract: A stator assembly comprises an annular platform (1) defining a boundary of an annulus and a plurality of guide vanes (2) for arranging in a circumferential array on the annular platform (1). The platform (1) includes a circumferential array of slots each slot having, at a first end, walls converging (3) from an annulus facing side towards an opposite side of the platform and then extending parallel (4) towards a second end. One or more cooling holes (5) is arranged in a wall (3,4) of the slot. Each vane (2) includes a root portion (7) which converges in a first region (8) distal to the root end and then extends parallel towards the root end in a second region (9). The root portion (7) is configured to engage in a slot of the platform (1) with the first region (8) abutting a convergent wall portion (3) of the slot and the second region (9) spaced from a parallel wall (4) of the slot. At least one bore (11a, 12a) is provided in a parallel wall (4) of each slot and at least one bore (11b, 12b) is also provided in the second region of the root portion (7). The bores (11a, 11b; 12a, 12b) in the two components are positioned to align when a vane (2) is engaged in a slot. The aligning bores (11a, 11b; 12a, 12b) together are configured to receive a pin (13) for mechanically securing the vane in the slot. A braze joint (14) may be added between the root portion (7) and parallel slot walls 4.