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    PASSIVE LUBRICATION SYSTEM FOR GAS TURBINE ENGINE GEARBOX DURING WIND MILLING
    1.
    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.

    PLANET GEARBOX WITH CYLINDRICAL ROLLER BEARING WITH UNDER RACE LUBE SCHEME
    2.
    发明公开
    PLANET GEARBOX WITH CYLINDRICAL ROLLER BEARING WITH UNDER RACE LUBE SCHEME 审中-公开
    与滚子轴承及用油方案跑道下的行星齿轮

    公开(公告)号：EP3159578A1

    公开(公告)日：2017-04-26

    申请号：EP16193771.9

    申请日：2016-10-13

    申请人： General Electric Company

    发明人： HASTINGS, William Howard ,  FISHER, Kenneth Lee ,  BRADLEY, Donald Albert ,  DICKMAN, Joseph Robert

    IPC分类号： F16H57/08 ,  F02C7/36

    CPC分类号： F16H57/08 ,  F01D25/18 ,  F02C3/04 ,  F02C7/06 ,  F02C7/36 ,  F02K3/06 ,  F05D2260/40311 ,  F05D2260/98 ,  F16C19/28 ,  F16C33/60 ,  F16C2360/23 ,  F16C2361/61 ,  F16H1/28 ,  F16H57/0471 ,  F16H57/0479 ,  F16H57/0486 ,  F16H57/082 ,  F16H2057/085

    摘要： A planet gear rotatable on a planet bearing with cylindrical rollers (104) is mounted to a carrier (90, 92) of an epicyclic gearing arrangement. Either the cylindrical outer surface (101) of the support pin (96) or the opposing cylindrical inner surface (112) of the inner ring (102) of the planet bearing includes a network of interconnected grooves (121, 122, 123). The support pin (96) includes oil feed holes (126) intersecting the grooves (121, 122, 123). Passages (124) through the planet bearing's inner ring (102) also connect to the grooves (121, 122, 123). A gas turbine engine (10) includes a fan (38) and LP shaft (36), which couples a compressor (22) to a turbine (30). An epicyclic gearing arrangement has a single input from the LP shaft (36) coupled to a sun gear (80), a single output coupled to the fan's shaft (45), and a planet bearing with a network of interconnected grooves (121, 122, 123).

    摘要翻译： 在行星与圆筒滚子（104）承载的行星齿轮可旋转的基座被安装到行星齿轮传动装置的一个载体（90，92）。 任一所述支撑销（96）或行星轴承的内圈（102）的相对的圆筒形内表面（112）的圆柱形外表面（101）包括相互连接的凹槽（121，122，123）的网络。 支撑销（96）包括油进料孔（126）相交的沟槽（121，122，123）。 通道（124）通过行星的内轴承环（102），从而连接到所述凹槽（121，122，123）。 一种燃气涡轮发动机（10）包括风扇（38）和LP轴（36），其中一个耦合压缩机（22）到涡轮机（30）。 行星齿轮传动装置具有从耦合到太阳轮（80），一个单一的输出端耦合到所述风扇的轴（45）的LP轴（36）的单个输入和行星具有互连槽（121的网络轴承，122 ，123）。

    DOUBLE ROW CYLINDRICAL ROLLER BEARING WITH HIGH LENGTH TO DIAMETER RATIO ROLLERS
    3.
    发明公开
    DOUBLE ROW CYLINDRICAL ROLLER BEARING WITH HIGH LENGTH TO DIAMETER RATIO ROLLERS 审中-公开
    高径长双列圆柱滚子轴承直径比滚子

    公开(公告)号：EP3159576A1

    公开(公告)日：2017-04-26

    申请号：EP16190097.2

    申请日：2016-09-22

    申请人： General Electric Company

    发明人： HASTING, William Howard ,  FISHER, Kenneth Lee ,  BRADLEY, Donald Albert ,  DICKMAN, Joseph Robert

    IPC分类号： F16H1/28 ,  F02C7/36 ,  F16C19/28

    CPC分类号： F01D25/16 ,  F01D5/06 ,  F01D15/12 ,  F02C7/36 ,  F04D29/321 ,  F04D29/325 ,  F05D2220/32 ,  F05D2240/50 ,  F05D2260/40311 ,  F16C19/28 ,  F16C2360/23 ,  F16H1/28 ,  F16H57/08 ,  F16H2057/085 ,  Y02T50/671

    摘要： A planet gearbox is provided for connection to a carrier of an epicyclic gearing arrangement with a single input and single output and including a sun gear 80, a ring gear 86 and at least one double helix planet gear rotatable on a cylindrical roller bearing wherein the ratio of each cylindrical roller's length to each cylindrical roller's 104 diameter exceeds 1.0. A gas turbine engine 10 includes a shaft 36 coupling a compressor 22 of a compressor section to a turbine 30 of a turbine section. An epicyclic gearing arrangement has a single input from the shaft coupled to a sun gear, a single output from the carrier that is coupled to the shaft of a fan and includes a planet gearbox with cylindrical rollers having a length-to-diameter ratio exceeding 1.0.

    摘要翻译： 行星齿轮箱被提供用于连接到具有单输入和单输出的行星齿轮传动装置的行星架并且包括可在圆柱滚子轴承上旋转的太阳齿轮80，齿圈86和至少一个双螺旋行星齿轮， 每个圆柱滚子104的直径超过1.0。 燃气涡轮发动机10包括将压缩机部分的压缩机22连接到涡轮部分的涡轮30的轴36。 行星齿轮装置具有来自与太阳齿轮耦合的轴的单个输入，来自载体的单个输出，其耦合到风扇的轴并且包括具有长径比超过1.0的圆柱滚子的行星齿轮箱 。