公开(公告)号：US20240102396A1

公开(公告)日：2024-03-28

申请号：US18237935

申请日：2023-08-25

Applicant: ROLLS-ROYCE plc

Inventor： Bogachan ALPAN

IPC: F01D9/04 ,  F01D9/06

CPC classification number: F01D9/042 ,  F01D9/06 ,  F05D2240/81 ,  F05D2260/213

Abstract: A platform for a stator vane includes a platform body and a plug. The platform body defines: an inner surface, an outer surface offset from the inner surface, an internal fluid passageway disposed between the outer surface and the inner surface, and a core aperture extending from the outer surface to the internal fluid passageway. The plug 700 is configured to be secured to the platform body. The plug is configured to be partially disposed inside the core aperture and extend outside of the core aperture whilst secured to the platform body for improved heat transfer between a fluid conveyed by the internal fluid passageway and a fluid to which the outer surface is exposed.

公开(公告)号：US20240102393A1

公开(公告)日：2024-03-28

申请号：US18237938

申请日：2023-08-25

Applicant: ROLLS-ROYCE plc

Inventor： Bogachan ALPAN

IPC: F01D5/18 ,  F01D9/04

CPC classification number: F01D5/188 ,  F01D9/041 ,  F05D2220/323 ,  F05D2230/232 ,  F05D2240/80

Abstract: A platform for a stator vane includes a platform body and a plug. The platform body defines: an inner surface, an outer surface offset from the inner surface, an internal fluid passageway disposed between the outer surface and the inner surface, and a core aperture extending from the outer surface to the internal fluid passageway. The plug is configured to be secured to the platform body. The plug is configured to occupy no less than 50% of the core aperture by volume whilst secured to the platform body to at least partially eliminate recirculation of a fluid conveyed by the internal fluid passageway within the core aperture.

公开(公告)号：US20150377038A1

公开(公告)日：2015-12-31

申请号：US14736964

申请日：2015-06-11

Applicant: ROLLS-ROYCE PLC

Inventor： Bogachan ALPAN

IPC: F01D5/28 ,  F01D25/00 ,  B22C9/22 ,  B22D25/02 ,  B22C9/04 ,  B22C9/10

CPC classification number: F01D5/28 ,  B22C7/02 ,  B22C9/04 ,  B22C9/108 ,  B22C21/14 ,  F01D25/005

Abstract: A method locates and maintains a core in fixed space relationship within the interior of shell mould. The method provides at least one pin extending into the core with at least one axial end of pin protruding from the core. A wax pattern having an outer surface is formed by encasing the core and at least one protruding axial end of pin in wax such that at least one protruding axial end of the pin terminates at the outer surface of wax pattern. A shell mould is formed around the wax pattern such that, upon removal of the wax pattern, and in subsequent casting process for production of hollow metal components, at least one protruding axial end of the pin abuts the shell mould thus fixing the pin and maintaining position of the core relative to the mould. The protruding axial end of the pin has an enlarged head.

Abstract translation: 一种方法在壳模内部定位并保持固定空间关系的核心。 该方法提供至少一个延伸到芯中的销，其中至少一个从芯突出的销的轴向端部。 具有外表面的蜡图案通过将芯和芯的至少一个突出的轴向端包围在蜡中而形成，使得销的至少一个突出的轴向端终止于蜡图案的外表面。 在蜡图案周围形成壳模，使得在去除蜡图案时，并且在随后的用于生产中空金属部件的铸造工艺中，销的至少一个突出的轴向端抵靠壳模，从而固定销并保持 芯相对于模具的位置。 销的突出的轴向端部具有扩大的头部。

公开(公告)号：US20240117744A1

公开(公告)日：2024-04-11

申请号：US18467387

申请日：2023-09-14

Applicant: ROLLS-ROYCE plc

Inventor： Bogachan ALPAN ,  Jonathan M. PEACE ,  Thomas P. HOUGHTON

IPC: F01D5/18 ,  F01D9/04 ,  F01D25/12

CPC classification number: F01D5/187 ,  F01D9/041 ,  F01D25/12

Abstract: Disclosed is an aerofoil for a gas turbine engine comprising: a first conduit formed in the aerofoil; a second conduit formed in the aerofoil; and a dividing wall separating the first and second conduits, the dividing wall comprising a transfer port configured to permit fluid flow between the first and second conduits; wherein the dividing wall further comprises a reinforcing boss at least partially encircling the transfer port. Also disclosed is a gas turbine engine comprising the aerofoil and an aircraft comprising the gas turbine engine.

公开(公告)号：US20180119554A1

公开(公告)日：2018-05-03

申请号：US15855594

申请日：2017-12-27

Applicant: ROLLS-ROYCE PLC

Inventor： Bogachan ALPAN

IPC: F01D5/28 ,  B22C21/14 ,  B22C9/10 ,  B22C7/02 ,  F01D25/00 ,  B22C9/04

CPC classification number: F01D5/28 ,  B22C7/02 ,  B22C9/04 ,  B22C9/108 ,  B22C21/14 ,  F01D25/005

Abstract: A method locates and maintains a core in fixed space relationship within the interior of a shell mould. The method provides at least one pin extending into the core with at least one axial end of the pin protruding from the core. A wax pattern having an outer surface is formed by encasing the core and at least one protruding axial end of the pin in wax such that at least one protruding axial end of the pin terminates at the outer surface of the wax pattern. A shell mould is formed around the wax pattern such that, upon removal of the wax pattern, and in a subsequent casting process for production of hollow metal components, at least one protruding axial end of the pin abuts the shell mould, thus fixing the pin and maintaining a position of the core relative to the mould. The protruding axial end of the pin has an enlarged head.

公开(公告)号：US20170022817A1

公开(公告)日：2017-01-26

申请号：US15202120

申请日：2016-07-05

Applicant: ROLLS-ROYCE plc

Inventor： Bogachan ALPAN ,  Keith C. SADLER ,  David J. HUNT

IPC: F01D5/08 ,  F01D5/18 ,  F02K3/06

CPC classification number: F01D5/081 ,  F01D5/082 ,  F01D5/187 ,  F01D5/3015 ,  F01D11/006 ,  F02K3/06 ,  F05D2220/323 ,  F05D2240/301

Abstract: A turbine blade having labyrinth of internal channels for circulation of coolant, the novel labyrinth geometry includes; inlet arranged on axially upstream face of terminal portion leading to an upstream duct portion having first section adjacent the inlet and a second section, the second section having reduced cross section compared to first section; a first passage intersecting first section and extending through the blade body towards tip of the blade, a proximal end of leading edge passage arranged to capture incoming air flow; a main blade passage intersecting a downstream duct portion, the downstream duct portion arranged in axial alignment with the upstream duct portion but separate from upstream duct portion; and a restrictor passage intersecting with the mid-blade passage and extending towards a mid-blade duct portion, the mid-blade duct portion in axial alignment with the upstream and downstream duct portions and in fluid communication with the upstream duct portion.

Abstract translation: 具有用于冷却剂循环的内部通道迷宫的涡轮机叶片，该新颖的迷宫几何形状包括： 入口布置在端子部分的轴向上游面上，通向具有与入口相邻的第一部分的上游管道部分和第二部分，第二部分与第一部分相比具有减小的横截面; 第一通道与第一部分相交并且延伸穿过叶片本体朝向叶片的尖端，前缘通道的近端布置成捕获进入的空气流; 与下游管道部分相交的主叶片通道，下游管道部分与上游管道部分轴向对准，但与上游管道部分分离; 以及与所述中叶通道相交并且朝向中间叶片管道部分延伸的限流器通道，所述中间叶片管道部分与所述上游管道部分和所述下游管道部分轴向对准并且与所述上游管道部分流体连通。