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公开(公告)号：US20180258843A1
公开(公告)日：2018-09-13
申请号：US15455699
申请日：2017-03-10
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Louis P. Begin , Dingfeng Deng , Ran Wu
CPC classification number: F02B39/14 , F01D25/18 , F02B33/40 , F02B37/00 , F05D2220/40 , F16C17/18 , F16C33/6685 , F16C2360/24 , Y02T10/144
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.
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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。
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公开(公告)号：US20150226110A1
公开(公告)日：2015-08-13
申请号：US14175316
申请日：2014-02-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yucong Wang , Louis P. Begin
IPC: F02B37/18
CPC classification number: F02B37/186 , F01D17/105 , F05D2220/40 , Y02T10/144
Abstract: A turbocharger for an internal combustion engine includes a rotating assembly having a turbine wheel disposed inside a turbine housing and a compressor wheel disposed inside a compressor cover. The turbocharger also includes a waste-gate assembly configured to selectively redirect at least a portion of the engine's post-combustion gases away from the turbine wheel. The waste-gate assembly includes a valve, a rotatable shaft connected to the valve, and a bushing fixed relative to the turbine housing and disposed concentrically around the shaft such that the shaft rotates inside the bushing to thereby selectively open and close the valve. The shaft is defined by an outer surface in contact with the bushing and the outer surface includes a coating composed of a ceramic-based material. An internal combustion engine employing such a turbocharger is also disclosed.
Abstract translation: 用于内燃机的涡轮增压器包括旋转组件，其具有设置在涡轮壳体内的涡轮机叶轮和设置在压缩机盖内的压缩机叶轮。 涡轮增压器还包括废门组件，其被配置为选择性地使发动机的后燃烧气体的至少一部分远离涡轮机轮。 废门组件包括阀，连接到阀的可旋转轴和相对于涡轮机壳体固定并且围绕轴同心设置的衬套，使得轴在衬套内旋转，从而选择性地打开和关闭阀。 轴由与衬套接触的外表面限定，并且外表面包括由陶瓷基材料组成的涂层。 还公开了一种使用这种涡轮增压器的内燃机。
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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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Patent Agency Ranking
公开(公告)号：US10190634B1
公开(公告)日：2019-01-29
申请号：US15646633
申请日：2017-07-11
Applicant: GM Global Technology Operations LLC
Inventor： Fanghui Shi , Dingfeng Deng , Ran Wu , Louis P. Begin , Yuli Huang
Abstract: A turbocharger including a housing and a rotary assembly disposed within the housing and including a turbine wheel and a compressor wheel attached to one another by a shaft. The rotary assembly being subject to aero-load in a lateral direction. A bearing is disposed in the housing and rotatably supports the shaft, the bearing including an inner bearing surface that engages the shaft and an outer bearing surface that engages the housing, the outer bearing surface having a pair of axially extending recessed grooves extending at least partially along the bearing. The pair of axially extending grooves being located perpendicular to the aero-load direction.
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公开(公告)号：US09546597B2
公开(公告)日：2017-01-17
申请号：US14490712
申请日：2014-09-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Julie Swartz , Robert Bielas , Louis P. Begin , Roman Mudel
CPC classification number: F02C7/06 , F01D17/105 , F02B37/183 , F02B37/186 , F02C6/12 , F05D2220/40 , F05D2240/54 , F05D2260/57 , F05D2300/30 , F05D2300/516 , Y02T10/144
Abstract: A turbocharger for an internal combustion engine includes a rotating assembly having a turbine wheel disposed inside a turbine housing and a compressor wheel disposed inside a compressor cover. The turbocharger also includes a waste-gate assembly configured to selectively redirect at least a portion of the engine's post-combustion gases away from the turbine wheel. The waste-gate assembly includes a valve, a rotatable shaft connected to the valve, and a bushing fixed relative to the turbine housing and disposed concentrically around the shaft such that the shaft rotates inside the bushing for opening and closing the valve. The bushing is defined by a length, an outer surface in contact with the turbine housing, and an inner surface in contact with the shaft. The inner surface includes a plurality of longitudinal grooves configured to counteract friction between the bushing and the shaft and avoid seizure of the shaft relative to the bushing.
Abstract translation: 用于内燃机的涡轮增压器包括旋转组件，其具有设置在涡轮壳体内的涡轮机叶轮和设置在压缩机盖内的压缩机叶轮。 涡轮增压器还包括废门组件，其被配置为选择性地使发动机的后燃烧气体的至少一部分远离涡轮机轮。 废门组件包括阀，连接到阀的可旋转轴和相对于涡轮机壳体固定并且围绕轴同心设置的衬套，使得轴在衬套内旋转以打开和关闭阀。 衬套由长度，与涡轮壳体接触的外表面以及与轴接触的内表面限定。 内表面包括多个纵向凹槽，其构造成抵消衬套和轴之间的摩擦，并避免相对于衬套卡住。
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公开(公告)号：US20160215785A1
公开(公告)日：2016-07-28
申请号：US14602405
申请日：2015-01-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Louis P. Begin , Dingfeng Deng , Isaac H. Y. Du
IPC: F04D29/056 , F04D17/10 , F04D25/04 , F02M25/07
CPC classification number: F04D29/056 , F01D25/166 , F02B37/00 , F04D25/024 , F05D2220/40 , F05D2240/53 , F16C17/02 , F16C17/18 , F16C17/26 , F16C27/02 , F16C2360/24
Abstract: A turbocharger for an internal combustion engine includes a bearing housing defining a bearing bore and a hybrid journal bearing system disposed within the bore. The hybrid journal bearing system includes first and second journal bearings. The first journal bearing is a semi-floating bearing and the second journal bearing is a full-floating bearing. The turbocharger also includes a shaft having a first end and a second end, wherein the shaft is supported by the journal bearing system for rotation about an axis within the bore. The turbocharger also includes a turbine wheel fixed to the shaft proximate to the first end and configured to be rotated about the axis by post-combustion gases emitted by the engine. Additionally, the turbocharger includes a compressor wheel fixed to the shaft proximate to the second end and configured to pressurize an airflow being received from the ambient for delivery to the engine.
Abstract translation: 用于内燃机的涡轮增压器包括限定轴承孔的轴承壳和设置在孔内的混合轴颈轴承系统。 混合轴颈轴承系统包括第一和第二轴颈轴承。 第一轴颈轴承是半浮动轴承，第二轴颈轴承是全浮动轴承。 涡轮增压器还包括具有第一端和第二端的轴，其中轴由轴颈轴承系统支撑以围绕孔内的轴线旋转。 涡轮增压器还包括涡轮机叶轮，其固定到靠近第一端的轴，并且构造成通过发动机排放的后燃烧气体围绕轴旋转。 另外，涡轮增压器包括压缩机叶轮，该压缩机叶轮固定到靠近第二端的轴上，并且构造成对从环境接收的气流进行加压以输送到发动机。
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公开(公告)号：US20160115909A1
公开(公告)日：2016-04-28
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: F02M25/07 , F04D29/051 , F16C32/06
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。
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公开(公告)号：US20150361985A1
公开(公告)日：2015-12-17
申请号：US14713498
申请日：2015-05-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Brian J. Edwards , Louis P. Begin , Carnell E. Williams
CPC classification number: F04D17/10 , F01D9/026 , F01D17/105 , F01D25/30 , F02B37/00 , F02B37/183 , F02B37/186 , F05D2220/40 , F05D2230/54 , F05D2250/324 , F05D2250/52 , Y02T10/144
Abstract: A turbocharger for an internal combustion engine includes a rotating assembly having a turbine wheel disposed inside a turbine housing and a compressor wheel disposed inside a compressor cover. The turbine housing defines a turbine outlet cavity, a turbine housing inlet, and a turbine housing outlet. The turbine housing inlet is configured to channel engine post-combustion gases to the turbine wheel and the turbine housing outlet is configured to exhaust the gases aft of the turbine wheel. A diffuser arranged inside the turbine outlet cavity is configured to channel the post-combustion gases aft of the turbine wheel and out to the turbine housing outlet, without discharging into the turbine outlet cavity.
Abstract translation: 用于内燃机的涡轮增压器包括旋转组件，其具有设置在涡轮壳体内的涡轮机叶轮和设置在压缩机盖内的压缩机叶轮。 涡轮机壳体限定涡轮机出口腔，涡轮机壳体入口和涡轮机壳体出口。 涡轮机壳体入口构造成将发动机后燃烧气体引导到涡轮机叶轮，并且涡轮机壳体出口构造成排出涡轮机叶轮后面的气体。 布置在涡轮机出口腔内部的扩散器构造成将涡轮机叶轮后部燃烧后的气体引导到涡轮机壳体出口，而不会排放到涡轮机出口腔中。
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