公开(公告)号：US20150110608A1

公开(公告)日：2015-04-23

申请号：US14388943

申请日：2013-03-22

Applicant: BorgWarner Inc.

Inventor： Rajendra Vemula

IPC: F02B37/24 ,  F02B39/00

CPC classification number: F02B37/24 ,  F02B37/12 ,  F02B39/00 ,  Y02T10/144 ,  Y10T29/49321

Abstract: A variable geometry turbocharger includes a vane pack having rotatable vanes constrained by a pair of vane rings held together by a plurality of pins. A first end of each pin can be configured with a head. Each pin is received in a pair of aligned apertures in the vane rings such that the head of each pin engages one of the vane rings. A second end of each pin is deformed (e.g., by orbital riveting) such that it engages the other vane ring. Thus, a clamp load is applied to the vane rings, which can control the parallelism and distance between the vane rings so that the vanes can rotate with a minimum clearance without jamming. Also, the pins can maintain vane axle apertures in the vane rings in the correct angular position relative to each other. Such a vane pack configuration can reduce process time and cost.

Abstract translation: 可变几何形状的涡轮增压器包括具有可旋转的叶片的叶片组，所述叶片包含由被多个销保持在一起的一对叶片环约束的旋转叶片。 每个引脚的第一端可以配置一个头。 每个销被接收在叶片环中的一对对齐的孔中，使得每个销的头部接合叶片环中的一个。 每个销的第二端变形（例如，通过轨道铆接），使得其接合另一个叶片环。 因此，夹紧负载被施加到叶片环，这可以控制叶片环之间的平行度和距离，使得叶片可以以最小间隙旋转而不会卡住。 此外，销可以将叶片环中的叶片轴孔保持在相对于彼此的正确角度位置。 这样的叶片组构造可以缩短加工时间和成本。

公开(公告)号：US09995158B2

公开(公告)日：2018-06-12

申请号：US14759544

申请日：2013-12-19

Applicant: BorgWarner Inc.

Inventor： Kurt Henderson ,  Rajendra Vemula

IPC: F01D25/24 ,  F01D9/02 ,  F02B37/013 ,  F01D17/10

CPC classification number: F01D9/026 ,  F01D17/105 ,  F02B37/013 ,  F05D2220/40

Abstract: A turbocharger (10) for an internal combustion engine includes a symmetric twin-volute turbine housing (12) having first and second volutes (16, 18). A turbine wheel (22) is disposed within the symmetric twin-volute turbine housing (12) for rotation about a turbocharger axis (R1). A nozzle ring (42, 58) is fixedly secured to the symmetric twin-volute turbine housing (12). The nozzle ring (42, 58) includes a plurality of fixed vanes (44, 62, 66) disposed circumferentially around the turbocharger axis (R1). The plurality of fixed vanes (44, 62, 66) form nozzle passages leading from at least one of the first and second volutes (16, 18) to the turbine wheel (22) for directing exhaust gas against the turbine wheel (22) at an optimum angle.

公开(公告)号：US10385766B2

公开(公告)日：2019-08-20

申请号：US15325183

申请日：2015-07-07

Applicant: BorgWarner Inc.

Inventor： Jair Reyes ,  Rajendra Vemula ,  Guenther Guth

IPC: F02B37/24 ,  F01D17/16 ,  F02C6/12

Abstract: An adjustment ring (50) is configured to facilitate vane (30) position adjustment in a variable turbine geometry turbocharger (1), and is formed of an assembly of one or more first ring portions (60) that are formed of a first material, and one or more second ring portions (61) that are formed of a second material. The first material has different material properties than the second material. In some embodiments, high-wear portions of the adjustment ring (50) can selectively and cost-effectively be formed of wear-resistant material while remaining portions are formed of a conventional material. A cost-effective method of manufacturing multi-piece adjustment rings (50) is described.

公开(公告)号：US10138744B2

公开(公告)日：2018-11-27

申请号：US14370848

申请日：2013-01-10

Applicant: BorgWarner Inc.

Inventor： Rajendra Vemula ,  Robert Lotz ,  George Edward Heddy, III

IPC: F01D11/00 ,  F01D17/16 ,  F02B37/24 ,  F01D5/20 ,  F01D11/08

Abstract: A plurality of guide vanes (34) in a variable turbine geometry turbocharger (10) regulates a flow of exhaust gas. The guide vanes (34) are selectively adjustable between an open position to allow the flow of exhaust gas to drive a turbine wheel (24) and a closed position to block the flow of exhaust gas. A first flow feature (58) is disposed on first (44) and second (46) edges of the guide vanes (34) to disturb the flow of exhaust gas to prevent leakage of exhaust gas around the first (44) and second (46) edges. A second flow feature (64) is disposed on front (60) and rear (62) surfaces of the guide vanes (34) to channel the flow of exhaust gas between adjacent guide vanes (34) when the guide vanes (34) are in the open position to prevent swirling and/or cross flow of the exhaust gas.

公开(公告)号：US20150152741A1

公开(公告)日：2015-06-04

申请号：US14370848

申请日：2013-01-10

Applicant: BorgWarner Inc.

Inventor： Rajendra Vemula ,  Robert Lotz ,  George Edward Heddy, III

IPC: F01D11/00 ,  F02B37/24 ,  F01D17/16

CPC classification number: F01D11/00 ,  F01D5/20 ,  F01D11/08 ,  F01D17/16 ,  F01D17/165 ,  F02B37/24 ,  F05D2220/40 ,  F05D2240/125 ,  F05D2250/294 ,  Y02T10/144

Abstract: A plurality of guide vanes (34) in a variable turbine geometry turbocharger (10) regulates a flow of exhaust gas. The guide vanes (34) are selectively adjustable between an open position to allow the flow of exhaust gas to drive a turbine wheel (24) and a closed position to block the flow of exhaust gas. A first flow feature (58) is disposed on first (44) and second (46) edges of the guide vanes (34) to disturb the flow of exhaust gas to prevent leakage of exhaust gas around the first (44) and second (46) edges. A second flow feature (64) is disposed on front (60) and rear (62) surfaces of the guide vanes (34) to channel the flow of exhaust gas between adjacent guide vanes (34) when the guide vanes (34) are in the open position to prevent swirling and/or cross flow of the exhaust gas.

Abstract translation: 可变涡轮机几何形状涡轮增压器（10）中的多个导向叶片（34）调节废气流。 导向叶片（34）可以在打开位置之间选择性地调节，以允许废气流动来驱动涡轮机叶轮（24）和关闭位置以阻止废气流。 第一流动特征（58）设置在导叶（34）的第一（44）和第二（46）边缘上，以扰乱排气的流动，以防止废气在第一（44）和第二（46）周围的泄漏 ）边。 第二流动特征（64）设置在导向叶片（34）的前部（60）和后部（62）表面上，以在导向叶片（34）处于其中时引导相邻导向叶片（34）之间的废气流 打开位置以防止废气的旋转和/或交叉流动。