公开(公告)号：WO1995012056A1

公开(公告)日：1995-05-04

申请号：PCT/US1994009027

申请日：1994-08-05

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  STAHL, Matthew ,  KANE, Daniel, E. ,  MURDOCK, James, R. ,  HADDAD, Donald, E.

IPC: F01D11/08

CPC classification number: F01D25/246 ,  F01D11/005 ,  F01D11/08

Abstract: A shroud segment (42) for a gas turbine engine (12) includes a rail (54) engaged with adjacent support structure (52) to retain the segment (42) and to provide sealing between the segment (42) and the adjacent structure (52). The segment (42) is pressed against its support structure (52) by a resilient element (68) to provide effective sealing and retaining permitting differing thermal growth between the segment (42) and the support structure (52). In a particular embodiment, a shroud segment (42) includes a rail (54) along a forward edge. The rail (54) is engaged with a recess in the support structure (52) to retain the segment (42) and with a band (68) which positions the segment (42) and seals the forward edge.

Abstract translation: 用于燃气涡轮发动机（12）的护罩段（42）包括与相邻的支撑结构（52）接合以保持段（42）并且在段（42）和相邻结构（42）之间提供密封的轨道（54） 52）。 通过弹性元件（68）将节段（42）压靠其支撑结构（52），以提供有效的密封和保持，从而允许段（42）和支撑结构（52）之间的不同热增长。 在特定实施例中，护罩区段（42）包括沿着前边缘的轨道（54）。 轨道（54）与支撑结构（52）中的凹部接合，以保持段（42）和定位段（42）并密封前缘的带（68）。

公开(公告)号：WO1994012775A1

公开(公告)日：1994-06-09

申请号：PCT/US1993011350

申请日：1993-11-22

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  STAHL, Matthew ,  HASTINGS, William, J. ,  KANE, Daniel, E. ,  MURDOCK, James, R. ,  DIERBERGER, James, A.

IPC: F01D11/08

CPC classification number: F01D11/122 ,  F05D2260/201 ,  F05D2260/202

Abstract: An outer air seal assembly (44) cooled by a combination of impingement cooling and film cooling is disclosed. Various construction details are developed which provide impingement of cooling fluid on a radially outer side of an outer air seal assembly (44) and ejection of a film of cooling fluid over a radially inner surface (52) of the outer air seal assembly (44). In a particular embodiment, an outer air seal assembly (44) includes a substrate (54), an apertured cover (56) disposed outward of the substrate (54), and a layer of abradable material (58) extending radially inward of the substrate (54) and defining a flow surface (52). Cooling fluid is directed through the apertures (72), into a cavity (66), and impinges upon the outer surface of the substrate (54). A plurality of film cooling holes (76) extend through the substrate (54) and abradable layer (58) and provide fluid communication between the cavity (66) and flowpath (14). The cooling holes (76) are oriented to eject cooling in a film over the flow surface (52). In another embodiment, the cavity (66) includes a longitudinally extending chamber (112) disposed in an enlarged portion (108) of the air seal (46) to enhance cooling thereof and reduce stresses therewithin.

Abstract translation: 公开了通过冲击冷却和薄膜冷却的组合冷却的外部空气密封组件（44）。 开发了各种结构细节，其提供了在外部空气密封组件（44）的径向外侧上的冷却流体的冲击和在外部空气密封组件（44）的径向内表面（52）上的冷却流体膜的喷射， 。 在特定实施例中，外部空气密封组件（44）包括衬底（54），设置在衬底（54）外侧的有孔盖（56）和沿着衬底的径向向内延伸的可磨损材料层 （54）并限定流动表面（52）。 冷却流体被引导通过孔（72）进入空腔（66），并且撞击在基底（54）的外表面上。 多个膜冷却孔（76）延伸穿过基底（54）和可磨损层（58），并提供空腔（66）和流路（14）之间的流体连通。 冷却孔（76）被定向成喷射在流动表面（52）上的膜中的冷却。 在另一个实施例中，空腔（66）包括设置在空气密封件（46）的扩大部分（108）中的纵向延伸腔室（112），以增强其冷却并降低其中的应力。

公开(公告)号：WO1995013456A1

公开(公告)日：1995-05-18

申请号：PCT/US1994008289

申请日：1994-07-22

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： UNITED TECHNOLOGIES CORPORATION ,  STAHL, Matthew

IPC: F01D25/24

CPC classification number: F01D25/246

Abstract: A turbine shroud segment includes a center hook (70) along one edge which retains the segment to the turbine structure while permitting thermal distortion of the segment. In a particular embodiment, a segment includes a pair of spaced center hooks (70), a first lateral hook (72), and a second lateral hook (74) disposed oppositely of the first lateral hook. The spaced center hooks retain the segment and prevent radially inward movement of the center region of the segment. The lateral hooks provide supplemental retention while permitting the lateral edges of the segment to move radially outward in response to thermal distortion of the segment.

Abstract translation: 涡轮机护罩段包括沿着一个边缘的中心钩（70），其将该段保持在涡轮结构上，同时允许该段的热变形。 在一个具体实施例中，一段包括一对间隔开的中心钩（70），第一侧钩（72）和与第一侧钩相对设置的第二侧钩（74）。 间隔开的中心钩保持该段并防止该段的中心区域的径向向内移动。 侧钩提供补充保持，同时允许段的横向边缘响应于段的热失真而径向向外移动。

公开(公告)号：EP0725888A1

公开(公告)日：1996-08-14

申请号：EP94926491.0

申请日：1994-08-05

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： STAHL, Matthew ,  KANE, Daniel, E. ,  MURDOCK, James, R. ,  HADDAD, Donald, E.

IPC: F01D5 ,  F01D11 ,  F01D25 ,  F02C7

CPC classification number: F01D25/246 ,  F01D11/005 ,  F01D11/08

Abstract: A shroud segment (42) for a gas turbine engine (12) includes a rail (54) engaged with adjacent support structure (52) to retain the segment (42) and to provide sealing between the segment (42) and the adjacent structure (52). The segment (42) is pressed against its support structure (52) by a resilient element (68) to provide effective sealing and retaining permitting differing thermal growth between the segment (42) and the support structure (52). In a particular embodiment, a shroud segment (42) includes a rail (54) along a forward edge. The rail (54) is engaged with a recess in the support structure (52) to retain the segment (42) and with a band (68) which positions the segment (42) and seals the forward edge.

公开(公告)号：EP0728258B1

公开(公告)日：1998-06-03

申请号：EP95917224.8

申请日：1994-07-22

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： STAHL, Matthew

IPC: F01D25/24

CPC classification number: F01D25/246

Abstract: A turbine shroud segment includes a center hook (70) along one edge which retains the segment to the turbine structure while permitting thermal distortion of the segment. In a particular embodiment, a segment includes a pair of spaced center hooks (70), a first lateral hook (72), and a second lateral hook (74) disposed oppositely of the first lateral hook. The spaced center hooks retain the segment and prevent radially inward movement of the center region of the segment. The lateral hooks provide supplemental retention while permitting the lateral edges of the segment to move radially outward in response to thermal distortion of the segment.

公开(公告)号：EP0725888B1

公开(公告)日：2000-04-19

申请号：EP94926491.5

申请日：1994-08-05

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： STAHL, Matthew ,  KANE, Daniel, E. ,  MURDOCK, James, R. ,  HADDAD, Donald, E.

IPC: F01D11/08 ,  F01D25/24 ,  F01D11/00

CPC classification number: F01D25/246 ,  F01D11/005 ,  F01D11/08

Abstract: A shroud segment (42) for a gas turbine engine (12) includes a rail (54) engaged with adjacent support structure (52) to retain the segment (42) and to provide sealing between the segment (42) and the adjacent structure (52). The segment (42) is pressed against its support structure (52) by a resilient element (68) to provide effective sealing and retaining permitting differing thermal growth between the segment (42) and the support structure (52). In a particular embodiment, a shroud segment (42) includes a rail (54) along a forward edge. The rail (54) is engaged with a recess in the support structure (52) to retain the segment (42) and with a band (68) which positions the segment (42) and seals the forward edge.

公开(公告)号：EP0728258A1

公开(公告)日：1996-08-28

申请号：EP95917224.0

申请日：1994-07-22

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： STAHL, Matthew

IPC: F01D11 ,  F01D25 ,  F02C7

CPC classification number: F01D25/246

Abstract: A turbine shroud segment includes a center hook (70) along one edge which retains the segment to the turbine structure while permitting thermal distortion of the segment. In a particular embodiment, a segment includes a pair of spaced center hooks (70), a first lateral hook (72), and a second lateral hook (74) disposed oppositely of the first lateral hook. The spaced center hooks retain the segment and prevent radially inward movement of the center region of the segment. The lateral hooks provide supplemental retention while permitting the lateral edges of the segment to move radially outward in response to thermal distortion of the segment.