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公开(公告)号:US09732800B2
公开(公告)日:2017-08-15
申请号:US14676277
申请日:2015-04-01
发明人: Dingfeng Deng , Louis P. Begin , Fanghui Shi
IPC分类号: F04D17/10 , F04D25/04 , F04D29/056 , F16C17/26 , F16C35/02 , F04D25/02 , F04D29/62 , F16C33/10
CPC分类号: F16C35/02 , F04D25/024 , F04D29/0563 , F04D29/624 , F05D2220/40 , F16C17/02 , F16C17/26 , F16C33/1085 , F16C2360/24
摘要: A turbocharger is provided including a housing with a turbine and a compressor disposed in the housing. A central shaft is connected between the turbine and the compressor and is rotatably supported by a first journal bearing disposed within the housing at a location adjacent to the turbine and a second journal bearing disposed within the housing at a location adjacent to the compressor. A spacer is disposed directly between and adjacent to the first journal bearing and the second journal bearing and is neither coupled to or integrally formed with the first journal bearing.
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公开(公告)号:US20160084163A1
公开(公告)日:2016-03-24
申请号:US14490712
申请日:2014-09-19
发明人: Julie Swartz , Robert Bielas , Louis P. Begin , Roman Mudel
CPC分类号: F02C7/06 , F01D17/105 , F02B37/183 , F02B37/186 , F02C6/12 , F05D2220/40 , F05D2240/54 , F05D2260/57 , F05D2300/30 , F05D2300/516 , Y02T10/144
摘要: 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.
摘要翻译: 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:US20190277159A1
公开(公告)日:2019-09-12
申请号:US15916331
申请日:2018-03-09
发明人: Yuli Huang , Fanghui Shi , Yuchuan Liu , Bo Yang , Louis P. Begin
摘要: A turbocharger assembly includes a center housing which defines a bore, a journal bearing, and a rotating assembly. The bore further defines primary and secondary annular grooves. The journal bearing may be disposed within the bore such that the annular groove encircles the journal bearing and feeds the fluid thereto. The rotating assembly includes a shaft, a turbine wheel and a compressor wheel. The turbine wheel is configured to be driven by the post-combustion gasses while the compressor wheel pressurizes the airflow for delivery to a combustion chamber. The shaft may be supported by one or more journal bearings for rotation within the bore about a longitudinal axis. The shaft includes a shaft surface which defines a standard region and a feature in a feature region. The feature is configured to generate a plurality of fictitious forces which stabilizes the turbocharger shaft.
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公开(公告)号:US09689397B2
公开(公告)日:2017-06-27
申请号:US14713498
申请日:2015-05-15
CPC分类号: F04D17/10 , F01D9/026 , F01D17/105 , F01D25/30 , F02B37/00 , F02B37/183 , F02B37/186 , F05D2220/40 , F05D2230/54 , F05D2250/324 , F05D2250/52 , Y02T10/144
摘要: 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.
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公开(公告)号:US09470106B2
公开(公告)日:2016-10-18
申请号:US13764280
申请日:2013-02-11
发明人: Louis P. Begin , Brian J. Edwards
CPC分类号: F01D25/24 , F01D25/16 , F05D2220/40
摘要: A turbocharger includes a turbine housing defining a turbine chamber and a compressor housing defining a compressor chamber. A turbine wheel is disposed in the turbine chamber and a turbine shaft is connected to the turbine wheel. A compressor wheel is disposed in the compressor chamber and connected to the turbine shaft. A compressor back plate is adjacent to the compressor wheel and a bearing cartridge is sandwiched directly between the compressor back plate and the turbine housing and rotatably supporting the turbine shaft.
摘要翻译: 涡轮增压器包括限定涡轮室的涡轮壳体和限定压缩机室的压缩机壳体。 涡轮机叶轮设置在涡轮机室中,涡轮轴连接到涡轮机叶轮。 压缩机叶轮设置在压缩机室中并连接到涡轮轴。 压缩机后板与压缩机叶轮相邻,并且轴承筒被直接夹在压缩机背板和涡轮机壳体之间并且可旋转地支撑涡轮机轴。
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公开(公告)号:US20150285301A1
公开(公告)日:2015-10-08
申请号:US14503528
申请日:2014-10-01
发明人: Louis P. Begin , Dingfeng Deng , Ran Wu , Fanghui Shi
IPC分类号: F16C33/10 , F04D29/056 , F02M25/07
CPC分类号: 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
摘要: 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.
摘要翻译: 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:US20220251970A1
公开(公告)日:2022-08-11
申请号:US17172409
申请日:2021-02-10
发明人: John A. Schultz , Louis P. Begin
摘要: A turbocharger for an internal combustion engine includes a bearing housing defining a bearing bore, a bearing system within the bore having first and second bearings, a turbine shaft having first and second ends, the turbine shaft supported by the bearing system for rotation about an axis within the bore, a compressor wheel fixed to the turbine shaft proximate to the second end, a turbine wheel fixed to the turbine shaft proximate to the first end, a turbine rotor hub fixed to the turbine shaft and including at least one annular seal ring groove, an annular oil slinger groove, and a plurality of annular lands formed therein, and an anti-coking coating applied to annular lands immediately adjacent to the at least one seal ring groove.
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公开(公告)号:US09897097B2
公开(公告)日:2018-02-20
申请号:US14602405
申请日:2015-01-22
发明人: Louis P. Begin , Dingfeng Deng , Isaac H. Y. Du
IPC分类号: F04D29/056 , F04D17/10 , F04D25/04 , F02M25/07 , F04D25/02 , F01D25/16 , F16C17/02 , F16C17/18 , F16C17/26 , F16C27/02 , F02B37/00
CPC分类号: F04D29/056 , F01D25/166 , F02B37/00 , F04D25/024 , F05D2220/40 , F05D2240/53 , F16C17/02 , F16C17/18 , F16C17/26 , F16C27/02 , F16C2360/24
摘要: 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.
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公开(公告)号:US09382877B2
公开(公告)日:2016-07-05
申请号:US14520794
申请日:2014-10-22
发明人: Louis P. Begin , Ran Wu , Dingfeng Deng
IPC分类号: F02B33/44 , F16C32/06 , F02M25/07 , F04D29/051
CPC分类号: 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
摘要: 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.
摘要翻译: 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:US10260516B2
公开(公告)日:2019-04-16
申请号:US15159420
申请日:2016-05-19
发明人: Fanghui Shi , Dingfeng Deng , Ran Wu , Louis P. Begin
IPC分类号: F01D25/16 , F04D29/056 , F02M26/04 , F04D17/10 , F04D29/42 , F04D29/66 , F16C25/00 , F04D29/057 , F16C17/24 , F16C17/26
摘要: A turbocharger includes 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. A bearing is disposed in the housing and rotatably supports the shaft. The bearing includes a pair of inner bearing surfaces that engage opposite ends of the shaft and a pair of outer bearing surfaces that engage the housing. The pair of inner bearing surfaces have a first axial dimension and the pair of outer bearing surfaces have a second axial dimension that is smaller than the first axial dimension.
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