公开(公告)号：US08696308B2

公开(公告)日：2014-04-15

申请号：US12899298

申请日：2010-10-06

申请人： Tim Denholm ,  James Alexander McEwen ,  Tom J. Roberts ,  Robert L. Holroyd ,  Christopher Normington ,  Arun Vijayakumar ,  Stephen Edward Garrett

发明人： Tim Denholm ,  James Alexander McEwen ,  Tom J. Roberts ,  Robert L. Holroyd ,  Christopher Normington ,  Arun Vijayakumar ,  Stephen Edward Garrett

IPC分类号： F01B25/02 ,  F03D7/00 ,  F04D15/00

CPC分类号： F01D17/162 ,  F01D17/143 ,  F01D17/165 ,  F05D2220/40 ,  F05D2250/25 ,  F05D2250/314

摘要： According to a first aspect of the present invention there is provided a variable geometry turbine comprising: a turbine wheel mounted for rotation about a turbine axis within a housing, the housing defining an annular inlet surrounding the turbine wheel and defined between first and second inlet sidewalls, the annular inlet being divided into at least two axially offset inlet portions; a cylindrical sleeve axially movable across the annular inlet to vary the size of a gas flow path through the inlet; and a guide for guiding the movement of the cylindrical sleeve, the guide being at least partially located within the inlet at a radially extent of the inlet portions, and extending in an axial direction parallel to the turbine axis.

摘要翻译： 根据本发明的第一方面，提供了一种可变几何涡轮机，其包括：涡轮机叶轮，其安装成围绕壳体内的涡轮机轴线旋转，壳体限定围绕涡轮机叶轮并限定在第一和第二入口侧壁之间的环形入口 所述环形入口被分成至少两个轴向偏移的入口部分; 圆柱形套筒可轴向移动穿过环形入口以改变通过入口的气体流动路径的尺寸; 以及用于引导所述圆柱形套筒的运动的引导件，所述引导件至少部分地位于所述入口的入口部分的径向范围内，并且在平行于所述涡轮机轴线的轴向方向上延伸。

公开(公告)号：US20130315718A1

公开(公告)日：2013-11-28

申请号：US13692787

申请日：2012-12-03

申请人： Cummins Ltd.

发明人： John F. Parker ,  Robert L. Holroyd ,  Tom J. Roberts ,  James Alexander McEwen ,  Tim Denholm ,  Simon Moore ,  Michael Voong ,  Christopher Normington ,  Arun Vijayakumar ,  Stephen Garrett

IPC分类号： F02B37/22

CPC分类号： F02B37/22 ,  F01D17/143 ,  F02B37/24 ,  F05D2220/40 ,  F05D2250/283 ,  Y02T10/144

摘要： A variable geometry turbine comprising a turbine wheel mounted for rotation about a turbine axis within a housing. The housing defines an annular inlet surrounding the turbine wheel and defined between first and second inlet sidewalls. The turbine further comprises a cylindrical sleeve that is axially movable across the annular inlet to vary the size of a gas flow path through the inlet. The annular inlet is divided into at least two axially offset inlet passages. The inner diameter of the sleeve is greater than the inner diameter of the inlet passages.

摘要翻译： 一种可变几何涡轮，包括安装用于围绕壳体内的涡轮机轴线旋转的涡轮机叶轮。 壳体限定围绕涡轮机叶轮并限定在第一和第二入口侧壁之间的环形入口。 涡轮进一步包括圆柱形套筒，其可轴向移动穿过环形入口以改变通过入口的气体流动路径的尺寸。 环形入口被分成至少两个轴向偏置的入口通道。 套筒的内径大于入口通道的内径。

公开(公告)号：US20130227944A1

公开(公告)日：2013-09-05

申请号：US13787414

申请日：2013-03-06

申请人： CUMMINS LTD

发明人： Tim Denholm ,  Toshihiko Nishiyama ,  Owen Alistair Ryder

IPC分类号： F02C9/00

CPC分类号： F02C9/00 ,  F01N5/04 ,  F02B37/002 ,  F02B37/005 ,  F02B37/04 ,  F02B39/10 ,  Y02T10/144 ,  Y02T10/16 ,  Y02T10/163

摘要： A method of operating a generator arrangement comprises selecting an operating mode as a function of at least one of: a speed of an engine, a temperature of at least a portion of the engine, a property of an exhaust fluid of the engine, and whether an engine braking command signal is received by the controller; controlling the flow of fluid from a first engine outlet to a first turbine by setting, based on the selected operating mode, an operating condition of a first flow control mechanism, the first turbine being part of a turbocharger having a compressor in fluid flow communication with an engine inlet; and controlling the flow of fluid from a second engine outlet to a second turbine by setting, based on the selected operating mode, an operating condition of a second flow control mechanism, the second turbine being parallel to the first turbine and being part of an electrical generator.

摘要翻译： 一种操作发电机装置的方法包括选择作为以下至少一个的功能的操作模式：发动机的速度，发动机的至少一部分的温度，发动机的废气的性质，以及是否 发动机制动指令信号由控制器接收; 通过基于所选择的操作模式设定第一流量控制机构的操作条件来控制流体从第一发动机出口到第一涡轮机的流动，所述第一涡轮机是涡轮增压器的一部分，所述涡轮增压器具有与流体流动连通的压缩机 发动机进气口 以及通过基于所选择的操作模式设定第二流量控制机构的操作条件来控制从第二发动机出口到第二涡轮机的流体流动，所述第二涡轮平行于所述第一涡轮并且是电气的一部分 发电机。

公开(公告)号：US20130180242A1

公开(公告)日：2013-07-18

申请号：US13723804

申请日：2012-12-21

申请人： Cummins Ltd.

发明人： Craig Robert Arthur Lancaster

IPC分类号： F02B47/08

CPC分类号： F02B47/08 ,  F01D25/164 ,  F01D25/18 ,  F01D25/22 ,  F01K23/065 ,  F01K23/10 ,  F01K25/08 ,  F01M1/12 ,  F01N5/02 ,  F02C1/08 ,  F02C6/12 ,  F02C6/18 ,  F02G5/02 ,  F05D2220/40 ,  F16C19/184 ,  F16C27/045 ,  F16C33/6659 ,  F16C2360/24 ,  Y02T10/16 ,  Y02T10/166

摘要： An engine assembly comprising an internal combustion engine and a waste heat recovery system, wherein the waste heat recovery system is configured to direct refrigerant around a loop which comprises: a heat exchanger configured to transfer heat from engine exhaust gases to the refrigerant such that the refrigerant is vaporised; a turbine configured to receive and be driven by the vaporised refrigerant; and a condenser configured to cool and condense the refrigerant for subsequent delivery in liquid form to the heat exchanger; wherein the turbine comprises a turbine wheel connected to a shaft which is held in a shaft housing, a bearing lubricated by liquid refrigerant being provided between the shaft and the shaft housing, and wherein squeeze film dampers which utilise the liquid refrigerant are provided between the bearing and the shaft housing.

摘要翻译： 一种包括内燃机和废热回收系统的发动机组件，其中所述废热回收系统被配置为引导围绕循环的制冷剂，所述循环包括：热交换器，其被配置为将热量从发动机废气传递到所述制冷剂，使得所述制冷剂 蒸发; 涡轮机，其被配置为接收并被所述蒸发的制冷剂驱动; 以及冷凝器，其被配置为冷却并冷凝所述制冷剂以便随后以液体形式输送到所述热交换器; 其中所述涡轮机包括连接到轴的涡轮机轮，所述轴被保持在轴壳体中，由所述轴和所述轴壳体之间的液体制冷剂润滑的轴承，并且其中使用所述液体制冷剂的挤压薄膜阻尼器设置在所述轴承 和轴壳体。

公开(公告)号：US12065938B2

公开(公告)日：2024-08-20

申请号：US17802877

申请日：2020-03-30

申请人： Cummins Ltd.

发明人： Stephen David Hughes

IPC分类号： F01D17/16 ,  F01D5/14 ,  F01D17/14

CPC分类号： F01D17/16 ,  F01D5/141 ,  F01D17/14 ,  F05D2220/40 ,  F05D2240/12 ,  F05D2260/60 ,  F05D2260/81

摘要： Variable geometry turbines having a turbine housing with an inlet and an outlet, a turbine wheel rotatably mounted between the inlet and the outlet, a movable wall member having an inlet passageway between the inlet of the turbine housing and the turbine wheel, and a plurality of vanes circumferentially spaced and extending across the inlet passageway, the plurality of vanes having a specified shape. Methods for designing configurations of vanes for variable geometry turbines.

公开(公告)号：US20240253141A1

公开(公告)日：2024-08-01

申请号：US18288481

申请日：2022-04-27

申请人： Cummins Ltd

发明人： Robert L. Holroyd ,  Thomas Roberts ,  Laura Sullivan ,  Aaron Matthew Holt ,  Ivan Scott Arbuckle ,  Philip Neil Dickinson

IPC分类号： B23H3/04 ,  B23H3/10 ,  B23H9/06 ,  B23H9/14 ,  B33Y10/00 ,  B33Y50/02 ,  B33Y80/00

CPC分类号： B23H3/04 ,  B23H3/10 ,  B23H9/06 ,  B23H9/14 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y80/00

摘要： An electrode assembly for electrochemically machining a cavity of a component is disclosed. The electrode assembly comprises: an electrode, a mounting body, and an urging means. The electrode comprises a plurality of conductive elements, including an outermost conductive element. The mounting body is coupled to the electrode and engageable with the component to align the electrode within the cavity. The urging means is configured to transition the electrode from a movable configuration to a conforming configuration. In the movable configuration the conductive elements are moveable relative to one another. In the conforming configuration adjacent conductive elements align to define a substantially continuous outer electrode surface.

公开(公告)号：US12037916B2

公开(公告)日：2024-07-16

申请号：US18019006

申请日：2021-07-30

申请人： Cummins Ltd.

发明人： Matthew Brookes ,  Stephen David Hughes ,  Mark R. Holden

IPC分类号： F01D17/16 ,  F01D9/02 ,  F01D25/24

CPC分类号： F01D25/246 ,  F01D9/02 ,  F01D17/16 ,  F05D2220/40 ,  F05D2230/642

摘要： There is provided an assembly for a turbocharger, the assembly comprising a turbine housing and a nozzle ring, wherein one of the turbine housing and the nozzle ring comprises a tongue and the other of the turbine housing and the nozzle ring comprises a corresponding slot, the tongue and slot being configured to engage and prevent relative rotation of the turbine housing and the nozzle ring. Also provided is a method of manufacturing a turbine housing, assembly for use in a turbocharger, or a turbocharger.

公开(公告)号：US12000337B2

公开(公告)日：2024-06-04

申请号：US17614274

申请日：2019-05-24

申请人： Cummins Ltd.

发明人： Thomas Daniel Morton

IPC分类号： F02C6/12 ,  F01D17/10 ,  F02B37/18 ,  F02C7/06

CPC分类号： F02C6/12 ,  F02B37/186 ,  F02C7/06 ,  F01D17/105 ,  F05D2220/40 ,  F05D2240/54 ,  F05D2260/57

摘要： There is disclosed a bush comprising an internal surface and an external surface. The internal surface defines a bore and is configured to support movement of a body received in the bore. The external surface defines an outer radius. The external surface comprises one or more recesses.

公开(公告)号：US20240125240A1

公开(公告)日：2024-04-18

申请号：US18397814

申请日：2023-12-27

申请人： Cummins Ltd.

发明人： Craig Stuart Thornhill Hasler

IPC分类号： F01D9/02 ,  F01D9/04 ,  F01D17/16 ,  F02B37/02 ,  F02B37/24

CPC分类号： F01D9/026 ,  F01D9/045 ,  F01D9/048 ,  F01D17/167 ,  F02B37/025 ,  F02B37/24 ,  F05D2220/40

摘要： A turbine assembly comprising a housing comprising first and second volutes which define a respective first and second flow passage. A circumferential outlet portion of each volute is defined by first and second tongues. The housing further comprises a first aperture in which a vane assembly is received. The vane assembly comprises a plurality of vanes circumferentially distributed about a turbine wheel-receiving bore, each vane comprising a leading edge and a trailing edge. Each vane has a fixed orientation. The vanes comprise a first vane and a second vane. The first vane having its leading edge disposed in closest proximity to a tip of the first tongue. The second vane having its leading edge disposed in closest proximity to a tip of the second tongue. The leading edge of each vane at least partly overlaps the tip of the proximate tongue circumferentially.

公开(公告)号：US11697997B2

公开(公告)日：2023-07-11

申请号：US17728855

申请日：2022-04-25

申请人： Cummins Ltd.

发明人： Matthew William Edwards ,  Karl Conlon ,  Simon David Moore ,  Christopher Parry ,  Andrew Sullivan ,  Paul Ghosh ,  Mark R. Holden ,  George E. Sandford ,  Nandakishore Arcot Madhusudan ,  Stephen David Hughes ,  Christopher J. Shaw

IPC分类号： F01D17/14 ,  F01D9/04 ,  F02B37/22 ,  F01D17/16

CPC分类号： F01D9/04 ,  F01D17/143 ,  F01D17/167 ,  F02B37/22 ,  F05D2220/40 ,  F05D2240/128

摘要： A turbine for a turbo-machine is proposed in which, at a gas inlet for a turbine wheel, vanes extend from a nozzle ring though slots in a shroud. The nozzle ring and shroud are relatively rotatable about a rotational axis of the turbine by at least 0.1 degrees. In use, the nozzle ring and shroud are relatively rotated to bring one side of the vane into close contact with one surface of the slot, to inhibit leakage of gas between the vane and the slot surface. For this purpose the respective surfaces of the nozzle and slot can be configured to closely conform to each other. If there is differential thermal expansion of the shroud and nozzle ring, the nozzle ring and shroud can relatively rotate, to withdraw the vane from the edge of the slot to relieve the pressure between them.