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公开(公告)号：US10436216B2
公开(公告)日：2019-10-08
申请号：US15071418
申请日：2016-03-16
发明人： Tsuyoshi Uesugi , Koichi Yonezawa
摘要： A turbocharger includes a cooling passage. The cooling passage is arranged along a diffuser surface, which faces a diffuser passage in a compressor housing member. The compressor housing member is constituted by combining a first piece, a second piece, and a third piece, which are produced by die casting or the like. The cooling passage is defined by assembling the first piece and the second piece to each other.
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公开(公告)号：US11492922B2
公开(公告)日：2022-11-08
申请号：US17520265
申请日：2021-11-05
发明人： Takashi Tsukiyama , Tsuyoshi Uesugi
摘要： A turbocharger includes a turbine wheel, a turbine housing, a bearing housing, a compressor housing, a seal plate, a variable nozzle mechanism, a penetrating shaft, and a spring member. The variable nozzle mechanism is located within the turbine housing, and adjusts the amount of exhaust gas that flows toward the turbine wheel. The penetrating shaft extends through the bearing housing and is connected to the variable nozzle mechanism. The spring member pushes out the penetrating shaft toward the compressor housing. The bearing housing and the seal plate define a cooling chamber through which coolant flows. The spring member is located in the cooling chamber.
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公开(公告)号：US11162386B2
公开(公告)日：2021-11-02
申请号：US16430425
申请日：2019-06-04
发明人： Haruto Ura , Daisuke Terui , Keiichi Ohta , Tsuyoshi Uesugi
摘要： A turbocharger includes: a shaft connecting a compressor wheel and a turbine wheel; a thrust collar rotating together with the shaft; a thrust bearing holding the thrust collar for rotation; and a bearing housing holding the thrust bearing, wherein the bearing housing includes: an oil supply passage for supplying oil for lubrication to the thrust bearing; an oil discharge passage from which the oil supplied to the thrust bearing is discharged; a wall portion facing the thrust collar; and a groove portion formed in the wall portion and extending from the thrust collar toward a discharge port of the oil discharge passage.
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公开(公告)号：US09739165B2
公开(公告)日：2017-08-22
申请号：US14276411
申请日：2014-05-13
发明人： Tsuyoshi Uesugi , Hiroaki Ikegami
CPC分类号： F01D17/165 , F05D2220/40
摘要： Embodiments of the present invention may include a variable nozzle turbocharger having a variable nozzle mechanism for controlling a flow velocity of exhaust gas to a turbine wheel. The variable nozzle mechanism includes a plurality of variable nozzles, a unison ring and a biasing member. The variable nozzles each have a nozzle vane. The unison ring is configured to adjust a degree of opening of the variable nozzles through rotation of the unison ring. The biasing member biases the unison ring so as to open the variable nozzles.
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公开(公告)号：US11326475B2
公开(公告)日：2022-05-10
申请号：US17287042
申请日：2019-10-25
发明人： Tsuyoshi Uesugi , Takashi Tsukiyama
摘要： A turbocharger includes a compressor housing, a turbine housing, a bearing housing, a variable nozzle unit, and a fixing member. The variable nozzle unit includes a first plate, a second plate, a plurality of nozzle vanes, and an attitude changing mechanism. The fixing member includes an engagement portion that is engaged with at least one of the first plate and the second plate, a through shaft portion shaped to extend through the bearing housing toward the compressor housing, and a fixing portion that fixes an end portion of the through shaft portion on the compressor housing side to the hearing housing.
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6.发明授权公开(公告)号：US09261016B2
公开(公告)日：2016-02-16
申请号：US13692625
申请日：2012-12-03
发明人： Tsuyoshi Uesugi , Hiromu Iwata , Kenta Akimoto
CPC分类号： F02B37/24 , F01D17/165 , F02D41/263 , F05D2220/40
摘要： A flow rate adjustment method for a variable geometry turbocharger may include steps as follows. An adjustment apparatus drives an actuator to an abutment position where a power transmission member abuts a stopper. The apparatus acquires the abutment position opening amount based on an opening detection sensor's signal. The apparatus drives the actuator until the detection amount attains a pre-set amount, moving the power transmission member to a temporary control position. The apparatus acquires a temporary control position flow rate. It is acquired when an adjustment gas inflow apparatus causes the adjustment gas to flow into an exhaust turbine, and a flow rate measurement sensor measures the flow rate of the adjustment gas. The apparatus obtains a correction amount based on a difference between the temporary control position flow rate and a real control position flow rate, which is a proper flow rate corresponding to the pre-set amount.
摘要翻译： 可变几何涡轮增压器的流量调节方法可以包括以下步骤。 调节装置将致动器驱动到动力传递构件抵靠止动件的抵接位置。 该设备基于打开检测传感器的信号获取邻接位置打开量。 该装置驱动致动器，直到检测量达到预设量，将动力传递构件移动到临时控制位置。 该装置获取临时控制位置流量。 当调节气体流入装置使调节气体流入排气涡轮机时被获取，并且流量测量传感器测量调节气体的流量。 该装置基于临时控制位置流量与实际控制位置流量之间的差异获得校正量，该实际控制位置流量是与预设量对应的适当流量。
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公开(公告)号：US11434818B2
公开(公告)日：2022-09-06
申请号：US17426383
申请日：2020-01-16
发明人： Tsuyoshi Uesugi
摘要： A variable nozzle unit includes a first plate, a second plate, a plurality of nozzle vanes each having a rotary shaft portion and a vane, a plurality of vane arms, and a unison ring. Each vane arm includes an engaging portion. The plurality of vane arms includes at least one extension arm. The extension arm includes an extension portion that has a shape extending from the engaging portion toward the second plate. The second plate has a receiving portion that receives the extension portion. The receiving portion includes a pair of contact walls, wherein the contact walls are brought into contact with the extension portion respectively at a position where each of the nozzle vanes maximizes the flow passage area of the exhaust air passage and at a position where the nozzle vane minimizes the flow passage area of the exhaust air passage.
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公开(公告)号：US20190390713A1
公开(公告)日：2019-12-26
申请号：US16430425
申请日：2019-06-04
发明人： Haruto Ura , Daisuke Terui , Keiichi Ohta , Tsuyoshi Uesugi
摘要： A turbocharger includes: a shaft connecting a compressor wheel and a turbine wheel; a thrust collar rotating together with the shaft; a thrust bearing holding the thrust collar for rotation; and a bearing housing holding the thrust bearing, wherein the bearing housing includes: an oil supply passage for supplying oil for lubrication to the thrust bearing; an oil discharge passage from which the oil supplied to the thrust bearing is discharged; a wall portion facing the thrust collar; and a groove portion formed in the wall portion and extending from the thrust collar toward a discharge port of the oil discharge passage.
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公开(公告)号：US10107188B2
公开(公告)日：2018-10-23
申请号：US15259607
申请日：2016-09-08
发明人： Tsuyoshi Uesugi , Koichi Yonezawa
IPC分类号： F02B39/14 , F01D25/18 , F01M11/02 , F02B37/00 , F16C33/66 , F02B37/007 , F02B37/013
摘要： A forced induction apparatus for an engine includes a first forced induction device including a first bearing and a first oil passage that passes by the first bearing and a second forced induction device including a second bearing, a second oil passage that passes by the second bearing, and a drain passage that is in communication with the first oil passage. The second forced induction device is located below the first forced induction device, and the drain passage receives oil from the first oil passage and discharges the oil out of the second forced induction device.
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公开(公告)号：US10087820B2
公开(公告)日：2018-10-02
申请号：US15071433
申请日：2016-03-16
发明人： Tsuyoshi Uesugi , Koichi Yonezawa
摘要： A turbocharger includes a cooling passage. The cooling passage extends along a diffuser surface. Fluid for cooling the diffuser surface flows through the cooling passage. The turbocharger includes a water jacket, which is arranged at a connection portion between a blow-by gas recirculation passage and an intake passage. Coolant for warming blow-by gas flows through the water jacket. The cooling passage communicates with the water jacket. Coolant that has been drawn into the cooling passage flows through the water jacket after flowing through the cooling passage.
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