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    STATOR SEGMENT CIRCUMFERENTIAL GAP SEAL
    41.
    发明申请
    STATOR SEGMENT CIRCUMFERENTIAL GAP SEAL 审中-公开

    公开(公告)号：US20190128274A1

    公开(公告)日：2019-05-02

    申请号：US15797577

    申请日：2017-10-30

    Applicant: United Technologies Corporation

    Inventor： Colin G. Amadon ,  Anthony R. Bifulco

    IPC: F04D29/08 ,  F04D29/54

    Abstract: A vane assembly for a gas turbine includes a first shroud segment, a second shroud segment, a first inner air seal, and a seal assembly. The first shroud segment has a first end face. The second shroud segment is disposed adjacent to the first shroud segment and has a second end face that faces towards and is spaced apart from the first end face by a gap. The first inner air seal extends into the first shroud segment and defines a first trench. The seal assembly at least partially received within the first trench.

    JEM STATOR OUTER PLATFORM SEALING AND RETAINER
    42.
    发明申请
    JEM STATOR OUTER PLATFORM SEALING AND RETAINER 审中-公开

    公开(公告)号：US20180202449A1

    公开(公告)日：2018-07-19

    申请号：US15406318

    申请日：2017-01-13

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Anthony R. Bifulco

    IPC: F04D29/08 ,  F02C3/04 ,  F04D29/52 ,  F04D29/54

    CPC classification number: F04D29/083 ,  F01D11/005 ,  F01D25/246 ,  F02C3/04 ,  F04D29/522 ,  F04D29/542 ,  F05D2220/32 ,  F05D2240/35

    Abstract: A system for retaining stators and reducing air leakage in a gas turbine engine having an axis includes a stator having an inner platform, an outer platform, a low pressure side, a high pressure side, and at least one foot, and designed to turn air. The system also includes a case positioned radially outward from the stator and having at least one recess designed to interface with the at least one foot to resist movement of the stator relative to the case. The system also includes a bladder positioned between the outer platform of the stator and the case and designed to receive pressurized fluid having a greater pressure than ambient pressures experienced at the low pressure side of the stator and to further resist movement of the stator relative to the case in response to receiving the pressurized fluid.

    Rotor With Blades Secured by Woven Fiber Attachment System
    44.
    发明申请
    Rotor With Blades Secured by Woven Fiber Attachment System 审中-公开
    带有叶片的转子由机织纤维附着系统固定

    公开(公告)号：US20160146023A1

    公开(公告)日：2016-05-26

    申请号：US14933129

    申请日：2015-11-05

    Applicant: United Technologies Corporation

    Inventor： Anthony R. Bifulco ,  Damon K. Brown ,  Nicholas Aiello

    IPC: F01D5/30 ,  F01D5/14

    CPC classification number: B23P15/006 ,  F01D5/282 ,  F01D5/34 ,  F05D2300/6033

    Abstract: A propulsive engine rotor configured for operation within a gas turbine includes a plurality of spaced airfoil blades circumferentially affixed to an outer hoop-style rim. At least two of the airfoil blades have an integral root configured to extend either through or at least radially inwardly from the rim. A woven fiber system provides that the blade roots are interdigitally wrapped by a plurality of woven fibers before impregnation and/or encapsulation of the fibers and wrapped roots within a ceramic or other composite matrix material to form a composite ring. The composite ring defines the interior body of the rotor, includes a bore through which passes the rotational axis of the rotor, and has a lower mass than the rotor rim. The woven fiber interface between the roots increases the tensile load capacity of the airfoil blades relative to the composite ring, and increases the self-sustaining radius of the rotor.

    Abstract translation: 构造成用于在燃气涡轮机内操作的推进式发动机转子包括多个间隔开的叶片叶片，周向地固定在外箍型轮缘上。 至少两个翼型叶片具有构造成从轮缘延伸穿过或至少径向向内延伸的整体根部。 编织纤维系统规定，在将纤维和包裹的根部浸入陶瓷或其它复合基质材料中以形成复合环之前，叶片根部被多个编织纤维叉指地包裹。 复合环限定转子的内部主体，包括通过转子的旋转轴线并且具有比转子轮辋更低的质量的孔。 根部之间的机织纤维界面增加了翼型相对于复合环的拉伸载荷能力，并提高了转子的自维持半径。

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