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1.发明授权High efficiency and durable ball bearing system with reduced turbine end heat transfer 有权高效率和耐用的滚珠轴承系统，减少涡轮机端部传热公开(公告)号：US09212700B1
公开(公告)日：2015-12-15
申请号：US14573775
申请日：2014-12-17
Applicant: BorgWarner Inc.
Inventor： Michael Bucking , Raj Chandramohanan
CPC classification number: F16C37/007 , F01D25/16 , F02C6/12 , F02C7/06 , F05D2220/40 , F16C19/184 , F16C33/6681 , F16C33/6685 , F16C2360/24
Abstract: A product for use with a turbocharger is disclosed. According to a number of variations, the product may include a bearing housing with a bearing assembly positioned in the bearing housing. A shaft may extend through the bearing assembly for rotation. A turbine wheel may be exposed to high temperature exhaust gases and may be connected to the shaft. The product may include a number of features to manage heat transfer and protect the bearing assembly from excessive temperatures that may otherwise result from exposure to the exhaust gases.
Abstract translation: 公开了一种用于涡轮增压器的产品。 根据多种变型，产品可以包括轴承壳体，轴承组件定位在轴承壳体中。 轴可以延伸穿过轴承组件以进行旋转。 涡轮机叶轮可能暴露于高温废气中，并可能连接到轴上。 该产品可以包括用于管理热传递的许多特征，并且保护轴承组件免受可能由于暴露于废气而导致的过高的温度。
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Patent Agency Ranking
公开(公告)号：US11215111B2
公开(公告)日：2022-01-04
申请号：US16851304
申请日：2020-04-17
Applicant: BorgWarner Inc.
Inventor： Raj Chandramohanan
Abstract: A turbocharger includes a shaft extending along an axis, a compressor wheel coupled to a first end of the shaft, a turbine wheel coupled to a second end of the shaft and having a first diameter; and a bearing housing extending about the shaft. The bearing housing is disposed between the compressor wheel and the turbine wheel. The bearing housing having a thermal dam having a volume extending circumferentially about the shaft and disposed proximate to the second end of the shaft between the compressor wheel and the turbine wheel. The thermal dam has a second diameter extending radially from the shaft. Moreover, the second diameter of the thermal dam is between 1.1 and 1.2 times greater than the first diameter of the turbine wheel.
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公开(公告)号：US20210324788A1
公开(公告)日：2021-10-21
申请号：US16851304
申请日：2020-04-17
Applicant: BorgWarner Inc.
Inventor： Raj Chandramohanan
Abstract: A turbocharger includes a shaft extending along an axis, a compressor wheel coupled to a first end of the shaft, a turbine wheel coupled to a second end of the shaft and having a first diameter; and a bearing housing extending about the shaft. The bearing housing is disposed between the compressor wheel and the turbine wheel. The bearing housing having a thermal dam having a volume extending circumferentially about the shaft and disposed proximate to the second end of the shaft between the compressor wheel and the turbine wheel. The thermal dam has a second diameter extending radially from the shaft. Moreover, the second diameter of the thermal dam is between 1.1 and 1.2 times greater than the first diameter of the turbine wheel.
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公开(公告)号：US11506078B1
公开(公告)日：2022-11-22
申请号：US17523120
申请日：2021-11-10
Applicant: BorgWarner Inc.
Abstract: A turbocharger includes a shaft, a compressor wheel, a turbine wheel, and a bearing assembly including an inner race, a first outer race spaced from the inner race, a second outer race spaced from the inner race, a first rolling element disposed between the first outer race and the inner race, and a second rolling element disposed between the second outer race and the inner race. The bearing assembly includes a first biasing member configured to bias the first outer race toward the second outer race and against the first rolling element, and preload the first rolling element with a preloading force, and a second biasing member configured to bias the second outer race toward the first outer race and against the second rolling element, and preload the second rolling element with a second preloading force. The first preloading force is different than the second preloading force.
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公开(公告)号：US11536159B1
公开(公告)日：2022-12-27
申请号：US17553901
申请日：2021-12-17
Applicant: BorgWarner Inc.
Abstract: A bearing assembly for supporting rotation of a shaft in a turbocharger includes an inner race extending along an axis. The inner race is configured to be coupled to the shaft. The bearing assembly also includes an outer race spaced radially from the inner race and a cage disposed radially between the inner race and the outer race. The bearing assembly further includes a rolling element disposed radially between the outer race and the inner race. The rolling element is disposed within the cage for supporting rotation of the shaft. The outer race defines a lubricant passageway configured to direct lubricant toward the cage.
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公开(公告)号：US20170298761A1
公开(公告)日：2017-10-19
申请号：US15131788
申请日：2016-04-18
Applicant: BorgWarner Inc.
Inventor： Jonathan Williams , Raj Chandramohanan , Robert Race
CPC classification number: F01D25/08 , F01D5/02 , F01D25/14 , F01D25/162 , F01D25/24 , F01D25/243 , F02B33/40 , F02B37/00 , F05D2220/40 , F05D2230/54 , F05D2230/60 , F05D2240/15 , F05D2240/40 , F05D2250/36 , F05D2300/5024 , Y02T10/144
Abstract: A heat shield (100) and method for assembling such is disclosed. The heat shield (100) may comprise an outer wall (122) and an inner wall (124). The outer wall (122) includes a first member (130), a flange (132) extending outward from the first member (130) and a first inner edge (134). The first member (130) extends from the flange (132) to the first inner edge (134). The inner wall (124) includes a second member (140), a rim (142) extending outward from the second member (140) and a second inner edge (144). The second member (140) extends from the rim (142) to the second inner edge (144). The inner wall (124) is spaced apart from the outer wall (122), the first and second edges form an air gap (146) between them, and the inner wall (124) and the outer wall (122) form a cavity (148).
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