Method for producing a turbomachine blade made from a composite material
    1.
    发明授权
    Method for producing a turbomachine blade made from a composite material 有权
    由复合材料制成的涡轮机叶片的方法

    公开(公告)号:US08607454B2

    公开(公告)日:2013-12-17

    申请号:US13263176

    申请日:2010-03-26

    IPC分类号: B21K25/00 B23P15/04

    摘要: A method of fabricating a composite-material turbomachine blade having platform incorporated therein includes separately making a blade platform element that includes rigidified fiber reinforcement and that has a shape close to that of a platform of the blade to be fabricated, with at least one opening being formed through the platform element. The opening has the shape of the profile of the airfoil of the blade to be fabricated. Three-dimensional weaving is used to make a flexible fiber blank as a single piece that includes blade airfoil-and-root preform portions. The platform element is engaged, via its opening, on the flexible fiber blank while deforming it so as to assemble the platform element with the fiber blank. The fiber blank is shaped together with the platform element assembled thereon to obtain a blade preform of a shape that is close to the shape of the blade to be fabricated. After shaping, the blade preform is consolidated in its shape in a shaper. Additionally, final densification of the consolidated blade preform is performed in order to obtain a composite-material blade having an incorporated platform.

    摘要翻译: 制造具有并入其中的平台的复合材料涡轮机叶片的方法包括分别制造包括刚性纤维增强件并且具有接近待制造的叶片的平台的形状的叶片平台元件,其中至少一个开口 通过平台元件形成。 开口具有要制造的叶片的翼型的形状。 使用三维编织将柔性纤维坯料制成包括叶片翼型和根部预制件部分的单件。 平台元件通过其开口接合在柔性纤维坯料上,同时变形,以便将平台元件与纤维坯料组装。 纤维坯料与组装在其上的平台元件一起成形,以获得接近待制造的刀片形状的形状的刀片预制件。 在成形之后,刀片预成型件以整形器固结成其形状。 此外,为了获得具有并入的平台的复合材料刀片,进行固结刀片预成型件的最终致密化。

    TURBINE RING ASSEMBLY
    2.
    发明申请
    TURBINE RING ASSEMBLY 有权
    涡轮环组件

    公开(公告)号:US20120027572A1

    公开(公告)日:2012-02-02

    申请号:US13255436

    申请日:2010-03-01

    IPC分类号: F01D25/24

    摘要: A turbine ring assembly includes a ring support structure and a plurality of ring sectors, each including a single piece of ceramic matrix composite material. Each ring sector includes a first portion forming an annular base with an inside face defining an inside face of the turbine ring and an outside face from which there extends two tab-forming portions including ends that are engaged in housings in the ring support structure. The ring sectors present a section that is substantially π-shaped and the ends of the tabs are held without radial clearance by the ring support structure. The tabs can have a free length in meridian section that is not less than three times their mean width.

    摘要翻译: 涡轮环组件包括环支撑结构和多个环形部分,每个环形部分包括单片陶瓷基体复合材料。 每个环形部分包括形成环形基部的第一部分,其中限定了涡轮机环的内侧面的内侧面和外表面,两个突出部形成部分从该外侧面延伸,该突出部形成部分包括接合在环形支撑结构中的壳体中的端部。 环形部分呈现出基本上形状的部分,并且突片的端部由环形支撑结构保持而没有径向间隙。 翼片可以在子午线部分具有不小于平均宽度的三倍的自由长度。

    Turbine ring assembly
    4.
    发明授权
    Turbine ring assembly 有权
    涡轮环总成

    公开(公告)号:US09080463B2

    公开(公告)日:2015-07-14

    申请号:US13255436

    申请日:2010-03-01

    IPC分类号: F01D25/24 F01D9/04 F01D11/08

    摘要: A turbine ring assembly includes a ring support structure and a plurality of ring sectors, each including a single piece of ceramic matrix composite material. Each ring sector includes a first portion forming an annular base with an inside face defining an inside face of the turbine ring and an outside face from which there extends two tab-forming portions including ends that are engaged in housings in the ring support structure. The ring sectors present a section that is substantially π-shaped and the ends of the tabs are held without radial clearance by the ring support structure. The tabs can have a free length in meridian section that is not less than three times their mean width.

    摘要翻译: 涡轮环组件包括环支撑结构和多个环形部分,每个环形部分包括单片陶瓷基体复合材料。 每个环形部分包括形成环形基部的第一部分,其中限定了涡轮机环的内侧面的内侧面和外表面,两个突出部形成部分从该外侧面延伸,该突出部形成部分包括接合在环形支撑结构中的壳体中的端部。 环形部分呈现出基本上形状的部分,并且突片的端部由环形支撑结构保持而没有径向间隙。 翼片可以在子午线部分具有不小于平均宽度的三倍的自由长度。