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    Casting pattern
    83.
    发明授权
    Casting pattern 有权

    公开(公告)号：US09616489B2

    公开(公告)日：2017-04-11

    申请号：US14427485

    申请日：2013-09-06

    Applicant: SNECMA

    Inventor： Dominique Coyez ,  Serge Fargeas

    IPC: B22C7/02 ,  B22C9/04 ,  B22D27/04 ,  C30B11/00 ,  C30B29/52 ,  B22C9/22 ,  B22D29/00

    CPC classification number: B22C7/02 ,  B22C9/04 ,  B22C9/22 ,  B22D27/045 ,  B22D29/00 ,  C30B11/002 ,  C30B29/52

    Abstract: A casting pattern for a lost-pattern casting, the pattern being in a shape of a turbine engine blade with a root and a body on either side of a platform that is substantially perpendicular to a main axis of the blade, and a method of producing a shell mold from the pattern, and a casting method using the shell mold. The blade body presents a pressure side, a suction side, a leading edge, and a trailing edge. The pattern also includes an expansion strip adjacent to the trailing edge, and a refractory core embedded in the pattern but presenting, both on the pressure side and on the suction side, a respective flush varnished surface between the trailing edge and the expansion strip. A web extends between the platform and the expansion strip and presents a free edge between them.

    Combustion chamber for a turbine engine
    85.
    发明授权
    Combustion chamber for a turbine engine 有权

    公开(公告)号：US09599344B2

    公开(公告)日：2017-03-21

    申请号：US14070698

    申请日：2013-11-04

    Applicant: SNECMA

    Inventor： Jacques Marcel Arthur Bunel ,  Gilles Ulryck

    IPC: F23R3/60 ,  F23R3/28 ,  F23R3/00

    CPC classification number: F23R3/60 ,  F23R3/002 ,  F23R3/283 ,  F23R2900/03044 ,  Y02T50/675

    Abstract: A combustion chamber (110) for a turbine engine, such as an airplane turboprop or turbojet, the combustion chamber comprising two coaxial annular walls, respectively an inner wall and an outer wall, that are connected together at their upstream ends by a chamber end wall (118) having an annular row of openings (119) for mounting fuel injection devices (120), the combustion chamber being characterized in that an annular metal sheet (130) is mounted upstream from the end wall and includes mounting orifices for receiving the above-mentioned injection devices, the sheet being substantially parallel to the end wall and co-operating therewith to define an annular air flow cavity (140).

    MULTILAYER WOVEN FIBROUS STRUCTURE INCLUDING A HOLLOW TUBULAR PART, PRODUCTION METHOD THEREOF AND COMPOSITE PART COMPRISING SAME
    87.
    发明申请
    MULTILAYER WOVEN FIBROUS STRUCTURE INCLUDING A HOLLOW TUBULAR PART, PRODUCTION METHOD THEREOF AND COMPOSITE PART COMPRISING SAME 审中-公开
    多层织物纤维结构，包括中空管状部件，其生产方法及包括其的复合部件

    公开(公告)号：US20170073857A1

    公开(公告)日：2017-03-16

    申请号：US15361278

    申请日：2016-11-25

    Applicant: SNECMA

    Inventor： Thierry GODON ,  Bruno Jacques Gerard DAMBRINE

    IPC: D03D11/02 ,  B32B5/06 ,  B32B1/08 ,  B32B5/02 ,  D03D3/02 ,  D03D25/00

    CPC classification number: D03D11/02 ,  B29B11/16 ,  B32B1/08 ,  B32B5/024 ,  B32B5/06 ,  B32B2262/103 ,  D03D3/00 ,  D03D3/02 ,  D03D11/00 ,  D03D25/005 ,  D10B2101/20 ,  D10B2505/02 ,  Y02T50/43 ,  Y10T428/13

    Abstract: A fiber structure made as a single piece by multilayer weaving using a method including weaving warp yarns of at least a first set of layers of warp yarns with weft yarns including at least some that are woven with extra length so as to have warp yarn end portions available that extend beyond the zone of weaving, the warp yarn end portions being returned to be woven with warp yarns by being reinserted in layers of warp yarns, and a hollow, or tubular, portion being formed by looping the first woven set of layers of warp yarns back onto itself and applying traction to the ends of the reinserted weft yarns so that a fiber preform for a part including a hollow portion can be obtained as a single piece.

    Abstract translation: 一种纤维结构体，通过使用包括至少第一组经纱层编织经纱的方法通过多层织造而制成单件，纬纱包括至少一些以额外长度织造的纬纱，以便具有经纱端部 可用的方式延伸超过织造区域，经纱端部通过重新插入经纱层而被返回以经纱织造，并且中空或管状部分是通过将第一组编织层 经纱回到自身上并将牵引力重新插入纬纱的端部，使得可以获得用于包括中空部分的部分的纤维预制件作为单件。

    Annular combustion chamber in a turbine engine
    89.
    发明授权
    Annular combustion chamber in a turbine engine 有权
    涡轮发动机中的环形燃烧室

    公开(公告)号：US09581334B2

    公开(公告)日：2017-02-28

    申请号：US14348966

    申请日：2012-10-22

    Applicant: SNECMA

    Inventor： Sebastien Alain Christophe Bourgois ,  Denis Jean Maurice Sandelis

    IPC: F23R3/02 ,  F02C7/266 ,  F23R3/16 ,  F23R3/18 ,  F23R3/50 ,  F02C7/264

    CPC classification number: F23R3/02 ,  F02C7/264 ,  F02C7/266 ,  F23R3/16 ,  F23R3/18 ,  F23R3/50

    Abstract: An annular combustion chamber of a turbine engine, the chamber including inner and outer coaxial walls forming two surfaces of revolution, which are connected together upstream by an annular chamber end wall including injection systems passing therethrough, each including an injector and at least one swirler for producing a rotating air stream that mixes downstream with fuel from the injector, and at least one ignition spark plug mounted in an orifice of the outer wall downstream from the injection systems. The spark plug is situated circumferentially between two adjacent injection systems that are configured to produce two air/fuel mixture sheets rotating in opposite directions.

    Abstract translation: 涡轮发动机的环形燃烧室，所述腔室包括形成两个旋转表面的内部和外部同轴壁，其由包括通过其中的喷射系统的环形室端壁连接在一起，每个包括喷射器和至少一个旋流器， 产生将来自喷射器的燃料与下游混合的旋转空气流和安装在喷射系统下游的外壁的孔中的至少一个点火火花塞。 火花塞周向地位于两个相邻的喷射系统之间，其被配置为产生沿相反方向旋转的两个空气/燃料混合物片。

    FUEL METER PROTECTED FROM ICING
    90.
    发明申请
    FUEL METER PROTECTED FROM ICING 有权
    燃油表受到保护

    公开(公告)号：US20170044993A1

    公开(公告)日：2017-02-16

    申请号：US14825566

    申请日：2015-08-13

    Applicant: SNECMA

    Inventor： Regis Michel Paul Deldalle ,  Anne Marie Cecile Barreau ,  Jean-Marie Brocard ,  Pierre Charles Mouton

    IPC: F02C9/26

    CPC classification number: F02C9/263 ,  F02M51/0653 ,  F02M61/168 ,  F02M63/0012 ,  F02M69/18

    Abstract: A fuel metering unit including a movable element including at least one fuel passage section opening upstream towards a fuel supply conduit and opening downstream towards a conduit of use through a metering slot with a flared profile having a narrow passage section flaring as far as a wide passage section, the movable element being able to be moved with respect to a fixed element between a low flow rate position in which the metering slot is for a large part obstructed and a high flow rate position in which the metering slot is for a large part exposed, the metering slot being made in the fixed element or in the movable element and its obstruction being obtained by covering the slot with a wall of the movable element or of the fixed element.

    Abstract translation: 一种燃料计量单元，包括可移动元件，所述可移动元件包括至少一个燃料通道部分，所述至少一个燃料通道部分朝向燃料供应管道上游打开，并通过计量槽向下游朝向使用的导管打开，其具有扩张形状，其具有狭窄的通道部分， 所述可移动元件能够相对于固定元件移动，所述可移动元件能够在其中计量槽被阻塞的较大部分的低流量位置和高流量位置之间移动，其中所述计量槽用于大部分暴露 ，计量槽被制成在固定元件或可移动元件中，并且其阻塞物通过用可移动元件或固定元件的壁覆盖槽来获得。

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