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    Multi-step bore turbocharger
    1.
    发明授权
    Multi-step bore turbocharger 有权

    公开(公告)号：US10746099B1

    公开(公告)日：2020-08-18

    申请号：US16374250

    申请日：2019-04-03

    Applicant: GM Global Technology Operations LLC

    Inventor： Louis Begin ,  Dingfeng Deng ,  Rachit Garg

    IPC: F02C6/12 ,  F02B39/14 ,  F04D29/12 ,  F02B33/40

    Abstract: A turbocharger includes a compressor housing, turbine housing, and center housing between the compressor and turbine housings. A turbine wheel is disposed in the turbine housing on a turbine shaft. A compressor wheel having a shank is disposed in the compressor housing on the turbine shaft. The shank has outer and reduced portions. The reduced portion has a smaller diameter than the outer portion. A backplate is mounted to the compressor housing adjacent the compressor wheel and defines a stepped cylindrical bore with a maximum diameter portion and a minimum diameter portion having a smaller diameter than the maximum portion. The outer portion is disposed in the maximum portion. The reduced portion is disposed in the minimum portion. The outer diameter of the shank is greater than or equal to the minimum diameter of the backplate, and the stepped cylindrical bore and the shank define a variable width gap.

    TURBOCHARGER BEARING HOUSING OIL GROOVE
    2.
    发明申请
    TURBOCHARGER BEARING HOUSING OIL GROOVE 有权
    涡轮增压器轴承壳油槽

    公开(公告)号：US20150285301A1

    公开(公告)日：2015-10-08

    申请号：US14503528

    申请日：2014-10-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Louis P. Begin ,  Dingfeng Deng ,  Ran Wu ,  Fanghui Shi

    IPC: F16C33/10 ,  F04D29/056 ,  F02M25/07

    CPC classification number: F16C17/18 ,  F01D25/166 ,  F01D25/18 ,  F04D29/057 ,  F04D29/063 ,  F05D2220/40 ,  F05D2250/13 ,  F05D2260/607 ,  F16C17/02 ,  F16C33/105 ,  F16C33/1065 ,  F16C2240/42 ,  F16C2360/24

    Abstract: A turbocharger for an internal combustion engine includes a bearing housing and a bearing bore defined by the bearing housing. The bearing bore has an annular bearing groove configured to receive a fluid. A journal bearing is disposed within the bore such that the annular bearing groove encircles the journal bearing and feeds the fluid thereto. The turbocharger also includes a rotating assembly having a shaft with a turbine wheel and a compressor wheel. The shaft has a longitudinal axis and is supported by the journal bearing for rotation within the bore about the axis. The annular bearing groove is characterized by a trapezoidal shape in a cross-sectional view of the bearing bore taken along and through the longitudinal axis. The trapezoidal shape is configured to generate Taylor vortices in the fluid for capturing debris carried by the fluid and keeping the debris from being fed to the journal bearing.

    Abstract translation: 用于内燃机的涡轮增压器包括轴承壳体和由轴承壳体限定的轴承孔。 轴承孔具有构造成接收流体的环形轴承槽。 轴颈轴承设置在孔内，使得环形轴承槽环绕轴颈轴承并将流体供给到轴颈轴承。 涡轮增压器还包括具有带有涡轮机叶轮和压缩机叶轮的轴的旋转组件。 轴具有纵向轴线并且由轴颈轴承支撑，用于围绕轴线在孔内旋转。 环形轴承槽的特征在于沿着并穿过纵向轴线的轴承孔的横截面视图中的梯形形状。 梯形形状构造成在流体中产生泰勒涡流，用于捕获由流体携带的碎屑并保持碎屑不被输送到轴颈轴承。

    Turbocharger thrust bearing debris trap
    4.
    发明授权
    Turbocharger thrust bearing debris trap 有权
    涡轮增压器推力轴承碎片陷阱

    公开(公告)号：US09382877B2

    公开(公告)日：2016-07-05

    申请号：US14520794

    申请日：2014-10-22

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Louis P. Begin ,  Ran Wu ,  Dingfeng Deng

    IPC: F02B33/44 ,  F16C32/06 ,  F02M25/07 ,  F04D29/051

    CPC classification number: F02M26/04 ,  F04D25/024 ,  F04D29/051 ,  F04D29/0513 ,  F05D2220/40 ,  F16C17/02 ,  F16C17/047 ,  F16C17/18 ,  F16C32/0651 ,  F16C33/1065 ,  F16C33/1075 ,  F16C2240/42 ,  F16C2360/24

    Abstract: A turbocharger for an internal combustion engine includes a bearing housing and a rotating assembly arranged therein. The rotating assembly includes a shaft with a turbine wheel and a compressor wheel. The turbocharger also includes a thrust bearing assembly operatively connected to the shaft, lubricated by pressurized oil from the engine, and configured to transmit thrust forces developed by the turbine wheel to the bearing housing. The thrust bearing assembly includes a thrust plate having a first thrust face and a thrust washer having a second thrust face. An oil film is generated between the first and second thrust faces, and the first and second thrust faces rotate relative to each other and transmit the thrust forces to the bearing housing. The thrust plate and/or the thrust washer include a circumferential groove configured to trap oil-borne debris and minimize an amount of the debris in the oil film.

    Abstract translation: 用于内燃机的涡轮增压器包括轴承壳体和布置在其中的旋转组件。 旋转组件包括具有涡轮机叶轮和压缩机叶轮的轴。 涡轮增压器还包括可操作地连接到轴的推力轴承组件，其由来自发动机的加压油润滑，并且构造成将由涡轮机叶轮产生的推力传递到轴承壳体。 推力轴承组件包括具有第一推力面的推力板和具有第二推力面的推力垫圈。 在第一和第二推力面之间产生油膜，并且第一和第二推力面相对于彼此旋转并将推力传递到轴承壳体。 推力板和/或止推垫圈包括周向凹槽，其构造成捕获油性碎屑并使油膜中碎屑的量最小化。

    Turbocharger for a vehicle engine
    5.
    发明授权
    Turbocharger for a vehicle engine 有权

    公开(公告)号：US10465604B2

    公开(公告)日：2019-11-05

    申请号：US15455699

    申请日：2017-03-10

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Louis P Begin ,  Dingfeng Deng ,  Ran Wu

    IPC: F02B33/44 ,  F02B39/14 ,  F02B37/00 ,  F02B33/40 ,  F01D25/18 ,  F16C33/66 ,  F16C17/18

    Abstract: A turbocharger for an internal combustion engine includes a center housing and a bore defined by the center housing. The bore has a primary annular groove and a secondary annular groove configured to receive a fluid. A journal bearing is disposed within the bore proximate to a proximate end of the shaft such that the journal bearing, together with the rotating shaft, feeds fluid to the primary and secondary annular grooves. The shaft is further coupled to a turbine wheel and a compressor wheel. The shaft has a longitudinal axis and is supported by the journal bearing for rotation within the bore about the axis. The primary and secondary annular grooves are each in fluid communication with a drain gallery.

    Turbocharger bearing housing oil groove
    9.
    发明授权
    Turbocharger bearing housing oil groove 有权
    涡轮增压器轴承座油槽

    公开(公告)号：US09494189B2

    公开(公告)日：2016-11-15

    申请号：US14503528

    申请日：2014-10-01

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Louis P. Begin ,  Dingfeng Deng ,  Ran Wu ,  Fanghui Shi

    IPC: F16C33/10 ,  F04D29/056 ,  F02M25/07 ,  F16C17/18 ,  F04D29/057 ,  F04D29/063 ,  F01D25/16 ,  F01D25/18 ,  F16C17/02

    CPC classification number: F16C17/18 ,  F01D25/166 ,  F01D25/18 ,  F04D29/057 ,  F04D29/063 ,  F05D2220/40 ,  F05D2250/13 ,  F05D2260/607 ,  F16C17/02 ,  F16C33/105 ,  F16C33/1065 ,  F16C2240/42 ,  F16C2360/24

    Abstract: A turbocharger for an internal combustion engine includes a bearing housing and a bearing bore defined by the bearing housing. The bearing bore has an annular bearing groove configured to receive a fluid. A journal bearing is disposed within the bore such that the annular bearing groove encircles the journal bearing and feeds the fluid thereto. The turbocharger also includes a rotating assembly having a shaft with a turbine wheel and a compressor wheel. The shaft has a longitudinal axis and is supported by the journal bearing for rotation within the bore about the axis. The annular bearing groove is characterized by a trapezoidal shape in a cross-sectional view of the bearing bore taken along and through the longitudinal axis. The trapezoidal shape is configured to generate Taylor vortices in the fluid for capturing debris carried by the fluid and keeping the debris from being fed to the journal bearing.

    Abstract translation: 用于内燃机的涡轮增压器包括轴承壳体和由轴承壳体限定的轴承孔。 轴承孔具有构造成接收流体的环形轴承槽。 轴颈轴承设置在孔内，使得环形轴承槽环绕轴颈轴承并将流体供给到轴颈轴承。 涡轮增压器还包括具有带有涡轮机叶轮和压缩机叶轮的轴的旋转组件。 轴具有纵向轴线并且由轴颈轴承支撑，用于围绕轴线在孔内旋转。 环形轴承槽的特征在于沿着并穿过纵向轴线的轴承孔的横截面视图中的梯形形状。 梯形形状构造成在流体中产生泰勒涡流，用于捕获由流体携带的碎屑并保持碎屑不被输送到轴颈轴承。

    Turbocharger bearing
    10.
    发明授权
    Turbocharger bearing 有权

    公开(公告)号：US10954996B2

    公开(公告)日：2021-03-23

    申请号：US16455061

    申请日：2019-06-27

    Applicant: GM Global Technology Operations LLC

    Inventor： Louis P. Begin ,  Dingfeng Deng ,  Yuchuan Liu

    IPC: H02K7/08 ,  H02K5/16 ,  F16C17/02 ,  F16C17/10 ,  F16C17/18 ,  F16C33/10 ,  F01D25/18 ,  F01D25/16 ,  F04D29/057 ,  F16C17/26

    Abstract: A fluid bearing for operably connecting a shaft to a center housing of a turbocharger is provided. The fluid bearing includes a single-piece bearing sleeve defining a bore between first and second ends that each form a thrust face. The sleeve includes first and second bearing portions proximal to an associated one of the first and second ends, and a shank connecting the first and second bearing portions. Each of the first and second bearing portions includes an outer bearing surface defining a maximum outer diameter, and each of the first and second bearing portions includes an inner bearing surface defining a minimum inner diameter for radially supporting the shaft in the bore. The inner bearing surface is a continuous surface free of grooves. The sleeve has a wall thickness defining oil passages spaced from the inner bearing surface and configured to supply oil to the thrust face.

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