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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：US20180156064A1
公开(公告)日：2018-06-07
申请号：US15370521
申请日：2016-12-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Su Jung Han , Julie Swartz , Louis Begin , Zhe Li
CPC classification number: F01D25/145 , C04B35/48 , C23C28/3215 , C23C28/3455 , C23C28/36 , C23C30/00 , F01D25/24 , F05D2220/40 , F05D2230/90 , F05D2240/24 , F05D2300/173 , F05D2300/177 , F05D2300/20 , F05D2300/611
Abstract: Provided herein are thermal barrier coatings (TBC) and turbocharger heat shields comprising the same. The turbocharger heat shield can be metallic and include a front face having an aperture capable of accepting a turbocharger shaft. The TBC can include a bond coat applied to the turbocharger heat shield, an interfacial layer contacting the bond coat, and a ceramic top coat contacting the interfacial layer. The bond coat of the TBC can comprise nickel, at least about 4% aluminum, up to about 36% chromium. One or more of the one or more of the interfacial layer and the ceramic top coat can comprise aluminum oxide, titanium oxide, spinel, yttria-stabilized zirconia, gadolinium zirconate, and combinations thereof. One or more of the interfacial layer and the ceramic top coat can be free from yttria-stabilized zirconia and gadolinium zirconate. The TBC can have a total thickness of at least about 100 μm.
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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
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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