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    Turbocharger thrust bearing
    1.
    发明授权
    Turbocharger thrust bearing 有权

    公开(公告)号：US10113587B1

    公开(公告)日：2018-10-30

    申请号：US15683275

    申请日：2017-08-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Rajasekhar Nicodemus ,  Fanghui Shi ,  Sudipto Ray ,  Dingfeng Deng ,  Louis Begin ,  Ran Wu

    IPC: F16C33/10

    Abstract: An improved thrust bearing for a turbocharger includes a first bearing surface, a second bearing surface, an internal passageway, a primary pad, and a plurality of secondary pads. The internal passageway fluidly connects the first and second bearing surfaces. The primary pad may be defined on the first bearing surface. The primary pad further defines a first aperture in fluid communication with the internal passageway and an oil feed defined in a turbocharger housing. The plurality of secondary pads may also be defined on the first bearing surface. Each secondary pad in the plurality of secondary pads may include a secondary surface area which is smaller than the primary surface area of the primary pad.

    Stacked planetary gear assembly with improved lubrication
    2.
    发明授权
    Stacked planetary gear assembly with improved lubrication 有权

    公开(公告)号：US09803742B1

    公开(公告)日：2017-10-31

    申请号：US15212926

    申请日：2016-07-18

    Applicant: GM Global Technology Operations LLC

    Inventor： Kothamasi Sumithra Raju ,  Sudipto Ray ,  Leonid Basin ,  Hai Xu ,  Avinash Singh

    IPC: F16H47/04 ,  F16H57/04 ,  F16H1/46 ,  F16H57/08

    CPC classification number: F16H57/043 ,  F16H1/46 ,  F16H57/0484 ,  F16H57/0486 ,  F16H57/082 ,  F16H2003/442

    Abstract: A radially stacked planetary gear assembly provides improved lubrication fluid flow to the planet gear bearings of an outer planetary gear set which is especially important when the housing or outer planetary gear carrier is stationary. The assembly includes radially aligned or stacked inner and outer planetary gear sets each having a sun gear, a ring gear and a carrier having planet gears in constant mesh with the sun and ring gears wherein the ring gear of the inner gear set is also the sun gear of the outer gear set and the outer carrier is the assembly housing. The sun gear is disposed on a transmission shaft having lubrication passages which aligns with pluralities of radial openings in a hub housing. A circular plate or guide adjacent one side of the housing includes channels which align with the openings and functions as a lubrication director, channeling lubrication from the transmission shaft and the pluralities of radial openings in the housing hub to the outer bearings, shafts and planet gears.

    COMPOUND NEURAL NETWORK ARCHITECTURE FOR STRESS DISTRIBUTION PREDICTION
    4.
    发明申请
    COMPOUND NEURAL NETWORK ARCHITECTURE FOR STRESS DISTRIBUTION PREDICTION 有权

    公开(公告)号：US20210174198A1

    公开(公告)日：2021-06-10

    申请号：US16709333

    申请日：2019-12-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Epaphroditus Rajasekhar Nicodemus ,  Sudipto Ray

    IPC: G06N3/08 ,  G06N3/04

    Abstract: A neural network architecture and a method for determining a stress of a structure. The neural network architecture includes a first neural network and a second neural network. A neuron of last hidden layer of the first neural network is connected to a neuron of a last hidden layer of the second neural network. A first data set is input into the first neural network. A second data set is input into the second neural network. Data from the last hidden layer of the first neural network is combined with data from the last hidden layer of the second neural network. The stress of the structure is determined from the combined data.

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