公开(公告)号：US11286784B2

公开(公告)日：2022-03-29

申请号：US17149128

申请日：2021-01-14

Applicant: ROLLS-ROYCE PLC

Inventor： Soumyik Bhaumik ,  Rohit Chouhan

IPC: F01D5/14

Abstract: An aerofoil assembly includes a platform and one or more aerofoils extending radially outward from the platform. The platform has a first edge, a second edge, and a platform surface disposed between the first edge and the second edge. The one or more aerofoils are disposed between the first edge and the second edge. Each of the one or more aerofoils has a leading edge proximal to the first edge and a trailing edge distal to the first edge. The platform defines one or more recesses disposed between the leading edge of each of the one or more aerofoils and the first edge.

公开(公告)号：US11739647B2

公开(公告)日：2023-08-29

申请号：US18073143

申请日：2022-12-01

Applicant: ROLLS-ROYCE plc

Inventor： Soumyik Bhaumik

IPC: F01D5/22 ,  F01D5/18

CPC classification number: F01D5/181 ,  F01D5/225 ,  F05D2220/32 ,  F05D2240/30 ,  F05D2260/20

Abstract: A turbine blade including an aerofoil and a shroud. The shroud includes a first abutment surface configured to face a second abutment surface of a first circumferentially adjacent turbine blade. The shroud further includes a second abutment surface configured to face a first abutment surface of a second circumferentially adjacent turbine blade. The shroud further includes an inner platform surface extending at least circumferentially between the first abutment surface and the second abutment surface. The shroud further includes a first recessed surface extending at least radially and circumferentially from the first abutment surface to the inner platform surface. The first recessed surface defines a first recessed region configured to receive a flow of a cooling fluid from the first circumferentially adjacent turbine blade.

公开(公告)号：US11371356B2

公开(公告)日：2022-06-28

申请号：US17149142

申请日：2021-01-14

Applicant: ROLLS-ROYCE PLC

Inventor： Rohit Chouhan ,  Soumyik Bhaumik

IPC: F01D5/14 ,  F01D5/02

Abstract: An aerofoil assembly includes a platform and a plurality of aerofoils extending radially outward from the platform. The platform has a first edge, a second edge, and a platform surface disposed between the first edge and the second edge. Each aerofoil has a leading edge proximal to the first edge and a trailing edge distal to the first edge. A pitch spacing is defined between the leading edges of adjacent aerofoils along the platform surface. A mid-pitch location is defined midway along the pitch spacing. The platform defines one or more recesses disposed between the leading edges of the plurality of aerofoils and the first edge. Each of the one or more recesses is disposed proximal to the mid-pitch location between adjacent aerofoils.