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    COMPONENTS INCLUDING STRUCTURES HAVING DECOUPLED LOAD PATHS
    1.
    发明公开
    COMPONENTS INCLUDING STRUCTURES HAVING DECOUPLED LOAD PATHS 审中-公开

    公开(公告)号：EP3437865A1

    公开(公告)日：2019-02-06

    申请号：EP18182936.7

    申请日：2018-07-11

    申请人： General Electric Company

    发明人： BARUA, Ananda ,  SUBRAMANIYAN, Arun Karthi ,  SUN, Changjie ,  ERNO, Daniel Jason ,  HALLMAN, Darren Lee

    IPC分类号： B33Y80/00 ,  B22F3/105 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/00 ,  B29C64/153 ,  B29C64/20

    摘要： A component (200) is provided. The component (200) includes a structure (202) including a plurality of unit cells (204) joined together, each unit cell (206) of the plurality of unit cells (204) having a mass density substantially similar to the mass density of every other unit cell (206) of the plurality of unit cells (204). The plurality of unit cells (204) includes a first portion (206) of unit cells (204) having a characteristic dimension (212) and a first portion (206) average stiffness, the characteristic dimension (212) of the first portion (206) of unit cells (204) having a first value. The plurality of unit cells (206) also includes a second portion (208) of unit cells (206) having the characteristic dimension (212) and a second portion (208) average stiffness, the characteristic dimension (212) of the second portion (208) of unit cells (206) having a second value different from the first value, wherein the second portion (208) average stiffness differs from the first portion (206) average stiffness.

    GEARS HAVING REDUCED ROLLER ELEMENT STRESS
    2.
    发明公开
    GEARS HAVING REDUCED ROLLER ELEMENT STRESS 审中-公开

    公开(公告)号：EP3358223A1

    公开(公告)日：2018-08-08

    申请号：EP18155340.5

    申请日：2018-02-06

    申请人： General Electric Company

    发明人： HALLMAN, Darren Lee

    IPC分类号： F16H55/17 ,  F16H57/08 ,  F02C7/36

    CPC分类号： F16H1/2836 ,  F02C7/36 ,  F03D80/70 ,  F05B2240/50 ,  F05B2260/40311 ,  F05D2260/40311 ,  F16C19/26 ,  F16C19/28 ,  F16C33/34 ,  F16C2360/31 ,  F16H55/17 ,  F16H57/08 ,  F16H2057/085

    摘要： A gear (204) having an axis of rotation includes a gear rim (306), with at least a portion (372) of the gear rim (306) configured to receive a load and define a loaded gear rim arc (376) corresponding to the portion of the gear rim (306). A bearing pin (302) extends axially through the gear rim (306), the gear rim (306) and the bearing pin (302) defining a roller element gap (313) therebetween. The gear rim (306) is configured to define a loaded roller element gap arc (378) substantially concentric with the loaded gear rim arc (376), the loaded element gap arc (378) having a loaded roller element gap arc length (358). The gear rim (306) is further configured to retain a loaded bearing portion (307) of the bearing (303) within the portion of the roller element gap (313) such that a loaded bearing portion (307) length is in a range from and including about 75% to and including about 125% of the loaded roller element gap arc (378) length.

    PASSIVE LUBRICATION SYSTEM FOR GAS TURBINE ENGINE GEARBOX DURING WIND MILLING
    3.
    发明公开
    PASSIVE LUBRICATION SYSTEM FOR GAS TURBINE ENGINE GEARBOX DURING WIND MILLING 审中-公开

    公开(公告)号：EP3530887A1

    公开(公告)日：2019-08-28

    申请号：EP19158776.5

    申请日：2019-02-22

    申请人： General Electric Company

    发明人： FISHER, Kenneth Lee ,  GHANIME, George Hanna ,  ERTAS, Bugra Han ,  HALLMAN, Darren Lee

    IPC分类号： F01D25/18 ,  F02C7/36

    摘要： A gearbox assembly 40 for a gas turbine engine 10 used in an aircraft having passive lubrication capabilities during wind milling includes a gearbox housing 44, a gear train assembly 50 housed within the gearbox housing 44, a lubricant in the gearbox housing 44 for lubricating the gear train assembly 50, and a first scavenge port 48 formed in the gearbox housing 44. The first scavenge port 48 is changeable between an open position and a closed position. Further, the first scavenge port 48 remains in the open position during normal operation of the gas turbine engine 10 to allow the lubricant 46 to drain from the gearbox housing 44. Upon occurrence of a loss of lubricant pressure in the gearbox assembly 40, the first scavenge port 48 is changed to the closed position to trap at least a portion of the lubricant in the gearbox housing 44. Thus, the trapped lubricant 46 provides passive lubrication to the gear train assembly 50 during the loss of lubricant pressure.

    SYSTEMS AND METHODS FOR ADVANCED ADDITIVE MANUFACTURING
    5.
    发明公开
    SYSTEMS AND METHODS FOR ADVANCED ADDITIVE MANUFACTURING 审中-公开

    公开(公告)号：EP3435182A1

    公开(公告)日：2019-01-30

    申请号：EP18182937.5

    申请日：2018-07-11

    申请人： General Electric Company

    发明人： BARUA, Ananda ,  SUBRAMANIYAN, Arun Karthi ,  ERNO, Daniel Jason ,  HALLMAN, Darren Lee

    IPC分类号： G05B19/4099

    摘要： A controller (106) for use in an additive manufacturing system (100) including a consolidation device (138) configured to consolidate material (109) is provided. The controller (106) is configured to receive a build file for a component (104, 200) including a plurality of build layers (116), wherein each build layer (116) includes a component outer perimeter (202), at least one build layer (116) generating function, at least one generating function variable, and at least one generating function constant. The controller (106) is configured to generate at least one control signal to control a power output throughout at least one scan path (152) of the consolidation device (138) across the material (109) for each build layer (116) of the plurality of build layers (116), the at least one scan path (152) generated based at least partially on the component (104, 200) outer perimeter (202), the at least one generating function, the at least one generating function variable, and the at least one generating function constant for each build layer (116).