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    DIODE ELECTRICAL GROUND FOR FAN BLADES
    2.
    发明申请
    DIODE ELECTRICAL GROUND FOR FAN BLADES 审中-公开
    二极管用于风扇叶片的电气接地

    公开(公告)号：WO2014052211A1

    公开(公告)日：2014-04-03

    申请号：PCT/US2013/061105

    申请日：2013-09-23

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： HANSEN, James O. ,  GAROSSHEN, Thomas J. ,  WATSON, Thomas J.

    IPC: F01D5/30 ,  F02C7/00

    CPC classification number: F01D25/00 ,  B64D45/02 ,  F01D5/30 ,  F01D5/3007 ,  F01D25/007 ,  F05D2220/36 ,  F05D2270/54 ,  Y02T50/671 ,  Y02T50/673

    Abstract: A rotor has a rotor body with at least one slot receiving a blade. The blade has an outer surface, at least at some areas, formed of a first material and having an airfoil extending from a dovetail. The dovetail is received in the slot. A diode is in contact with a portion of the dovetail formed of a second material that is more electrically conductive than the first material. The diode is in contact with a rotating element that rotates with the rotor. The rotating element is formed of a third material. The first material is less electrically conductive than the third material. The diode and the rotating element together form a ground path from the portion of the dovetail into the rotor. An engine and a fan blade are also disclosed.

    Abstract translation: 转子具有转子体，其具有至少一个容纳刀片的槽。 至少在某些区域，叶片具有由第一材料形成并具有从燕尾形延伸的翼型件的外表面。 燕尾接收在槽中。 二极管与由与第一材料相比更导电的第二材料形成的燕尾形部分接触。 二极管与转子一起旋转的旋转元件接触。 旋转元件由第三材料形成。 第一种材料比第三种材料导电性差。 二极管和旋转元件一起形成从燕尾榫部分到转​​子的接地路径。 还公开了一种发动机和风扇叶片。

    ALUMINUM BRAZING OF HOLLOW TITANIUM FAN BLADES
    3.
    发明申请
    ALUMINUM BRAZING OF HOLLOW TITANIUM FAN BLADES 审中-公开

    公开(公告)号：WO2014099067A3

    公开(公告)日：2014-06-26

    申请号：PCT/US2013/061571

    申请日：2013-09-25

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： BALES, Daniel A. ,  WATSON, Thomas J.

    IPC: F04D29/38

    Abstract: A fan blade includes first and second titanium portions that are secured to one another with an aluminum alloy braze. A method of manufacturing a fan blade includes providing first and second titanium portions, applying an aluminum alloy braze to at least one of the first and second titanium portions, and heating the fan blade to melt the aluminum alloy braze and join the first and second portions to one another to provide a fan blade with an airfoil exterior contour.

    HYBRID METAL FAN BLADE
    5.
    发明申请
    HYBRID METAL FAN BLADE 审中-公开
    混合金属风扇叶片

    公开(公告)号：WO2014196987A2

    公开(公告)日：2014-12-11

    申请号：PCT/US2013/046819

    申请日：2013-06-20

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： DEAL, James L. ,  SCHIRRA, John J. ,  DROZDENKO, Lee ,  GRAVES, William R. ,  HANSEN, James O. ,  WEISSE, Michael A. ,  WATSON, Thomas J.

    IPC: F01D5/14 ,  F01D5/28 ,  F04D29/38

    CPC classification number: F01D5/288 ,  F01D5/147 ,  F04D29/023 ,  F04D29/324 ,  F05D2220/36 ,  F05D2230/23 ,  F05D2240/303 ,  F05D2300/121 ,  F05D2300/124 ,  F05D2300/174 ,  Y02T50/672

    Abstract: A fan blade comprises an airfoil portion and a sheath portion. The sheath portion has a sheath head section, a first sheath flank, and a second sheath flank, both flanks extending chordwise from the forward sheath section. The sheath portion is bonded to the airfoil portion such that the sheath head section covers the forward airfoil edge, defining a blade leading edge. The first sheath flank covers a portion of the first airfoil surface proximate the airfoil forward edge, jointly defining a blade suction surface. The second sheath flank covers a portion of the second airfoil surface proximate the airfoil forward edge, jointly defining a blade pressure surface. The first metallic material is an aluminum alloy containing between about 0.5 wt% and about 3.0 wt% of lithium.

    Abstract translation: 风扇叶片包括翼型部分和鞘部分。 护套部分具有鞘头部分，第一护套侧面和第二护套侧面，两个侧面从前鞘部分向翼伸出。 护套部分结合到翼型部分，使得鞘头部分覆盖前翼型边缘，限定叶片前缘。 第一护套侧面覆盖靠近翼型件前缘的第一翼型件表面的一部分，共同限定叶片抽吸表面。 第二护套侧面覆盖靠近翼型件前缘的第二翼型件表面的一部分，共同限定叶片压力表面。 第一种金属材料是含有约0.5wt％至约3.0wt％的锂的铝合金。

    POWDER METALLURGY ALLOY EXTRUSION
    6.
    发明申请
    POWDER METALLURGY ALLOY EXTRUSION 审中-公开
    粉末冶金合金挤压

    公开(公告)号：WO2014152172A1

    公开(公告)日：2014-09-25

    申请号：PCT/US2014/027033

    申请日：2014-03-14

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： DEMICHAEL, Thomas ,  TIMKO, Mark M. ,  WATSON, Thomas J.

    IPC: B22F3/02 ,  B22F5/04

    CPC classification number: B22F5/04 ,  B22F2998/10 ,  B22F2999/00 ,  B22F3/17 ,  B22F3/20 ,  B22F3/24 ,  B22F2003/247

    Abstract: A method for forming an article (60) by introducing one or more powders (331) into a bag (310). Vacuum is applied to the bag. The bag is sealed. The one or more powders in the sealed bag are forged to form a first precursor (604) of the article. The precursor is extruded into a shaped die to form at least a second precursor (606) of the article.

    Abstract translation: 一种通过将一种或多种粉末（331）引入袋（310）中来形成物品（60）的方法。 将真空施加到袋子上。 袋子被密封。 密封袋中的一种或多种粉末被锻造以形成制品的第一前体（604）。 将前体挤出成型模具以形成制品的至少第二前体（606）。

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