公开(公告)号：US20230143650A1

公开(公告)日：2023-05-11

申请号：US18053952

申请日：2022-11-09

申请人： Cummins inc.

发明人： Edward D. Koeberlein ,  David M. Barnes ,  Michael T. Stanley

IPC分类号： F02M37/00 ,  F02M65/00 ,  F02M55/02

CPC分类号： F02M37/0052 ,  F02M65/006 ,  F02M55/025 ,  F02M2200/18

摘要： A fuel system cover is provided for an internal combustion engine. The fuel system cover is configured to be mounted on the cylinder head assembly to encapsulate a portion of the fuel system to provide leak prevention, mitigation, and detection capabilities.

公开(公告)号：US20220381166A1

公开(公告)日：2022-12-01

申请号：US17884546

申请日：2022-08-09

申请人： Cummins Inc.

发明人： Govindarajan Kothandaraman ,  Lyle E. Kocher ,  David M. Barnes ,  Scott Robert Bardakjy ,  J. Steven Kolhouse

IPC分类号： F01L13/00 ,  F01M1/02 ,  F01M5/00 ,  F01M1/16 ,  F01P3/06 ,  F01M1/10 ,  B01D35/00

摘要： Systems, devices, and methods are disclosed that during cylinder deactivation, including skipfire, at low engines speeds and low engine loads maintain adequate oil pressure of valvetrain components or hardware required for CDA and/or skipfire operation.

公开(公告)号：US20210062712A1

公开(公告)日：2021-03-04

申请号：US16961588

申请日：2018-01-12

申请人： Cummins Inc.

发明人： David M. Barnes ,  Kevin C. Augustin, Sr.

IPC分类号： F02B67/04 ,  F16C3/02 ,  F02F11/00 ,  F01M13/00 ,  F01M11/02 ,  F01M11/00

摘要： An idler shaft (100) used in an engine (10) having a gear cover (16) and a cylinder block (18). The idler shaft (100) includes an integral body (114) having a cylindrical shape. The idler shaft (100) is compressed between the gear cover (16) and the cylinder block (18) when assembled together such that the integral body (114) of the idler shaft (100) provides a clamp load and axial sealing between the gear cover (16) and the cylinder block (18). The idler shaft (100) further includes a passage way (116) fluidly connected to at least one of: the cylinder block (18) and the gear cover (16) for accommodating transmission of a fluid for the engine (10).

公开(公告)号：US20190360362A1

公开(公告)日：2019-11-28

申请号：US16303465

申请日：2017-09-25

申请人： CUMMINS INC.

发明人： Adam C. Cecil ,  David M. Barnes

IPC分类号： F01L1/24 ,  F01L1/26 ,  F01L1/18 ,  F01L13/06 ,  F01L1/344

摘要： A valve train assembly (16) includes a fuel injector (1), an intake rocker lever assembly (10), and an exhaust rocker lever assembly (14). The intake and exhaust rocker lever assemblies (10) can include an eccentric hydraulic lash adjuster (11) that is located in the nose (31) of the respective rocker lever assemblies (10). The rocker lever assemblies (10) are configured to allow a clearance area between a nose (31) of the intake rocker lever assembly (10) and the nose (31) of the exhaust rocker lever assembly (14). As such, the fuel injector (1) can be positioned in the clearance area, while still allowing the eccentric hydraulic lash adjusters to apply a load onto a corresponding valve bridge (2). For example, the eccentric hydraulic lash adjuster (11) can include an outer housing (20) and a pivot ball (21), wherein the pivot ball (21) is positioned at an offset (23) from a lateral centerline of the outer housing (20).

公开(公告)号：US20190271241A1

公开(公告)日：2019-09-05

申请号：US16346403

申请日：2017-10-31

申请人： Cummins Inc.

发明人： Nathaniel P. Hassall ,  John Jerl Purcell, III ,  Stephen D. Cofer, JR. ,  David M. Barnes ,  Aaron S. Quinton ,  Reid M. Irish

IPC分类号： F01M1/02 ,  F01M1/08 ,  F01M1/10 ,  F01M5/00 ,  F01M11/00

摘要： The present disclosure provides a lubrication system comprising: a pump having an inlet in fluid communication with a lubricant source and an outlet; a cooler having an inlet in fluid communication with the outlet of the pump and an outlet; a lubrication filter having an inlet in fluid communication with the outlet of the cooler and an outlet; a first delivery path in fluid communication with the outlet of the lubrication filter, the first delivery path being configured to deliver cooled, filtered lubricant to a bearing system of an engine; and a second delivery path in fluid communication with the outlet of the pump, the second delivery path being configured to deliver uncooled, unfiltered lubricant to piston cooling nozzles of the engine.

公开(公告)号：US09915222B2

公开(公告)日：2018-03-13

申请号：US14666489

申请日：2015-03-24

申请人： Cummins Inc.

发明人： Jason W. Mackey ,  David M. Barnes

IPC分类号： F01P1/04 ,  F02F3/00 ,  F02B3/06 ,  F02B23/06 ,  F02M61/14

CPC分类号： F02F3/003 ,  F02B3/06 ,  F02B23/0657 ,  F02B23/0672 ,  F02B23/0675 ,  F02F2003/0061 ,  F02M61/14 ,  Y02T10/125

摘要： A diesel engine includes a cylinder block having a cylinder cavity defined therein. A cylinder head is coupled to the cylinder block and includes a lower semi-hemispherical surface defined thereon that defines an upper boundary of a combustion chamber. The engine includes a piston slideably disposed within the cylinder cavity that includes a piston crown having an upper surface configured to define a first portion of a lower boundary of the combustion chamber. The upper surface of the piston crown includes an axi-symmetric semi-hemispherical shape configured to correspond to the lower semi-hemispherical surface of the cylinder head.

公开(公告)号：US20160281613A1

公开(公告)日：2016-09-29

申请号：US15081493

申请日：2016-03-25

申请人： Cummins Inc.

发明人： Darren Ting ,  David M. Barnes

IPC分类号： F02D13/04 ,  F01L13/06 ,  F01M9/10

CPC分类号： F02D13/04 ,  F01L1/053 ,  F01L1/18 ,  F01L1/181 ,  F01L13/06 ,  F01L2001/0537 ,  F01L2105/00 ,  F01M9/108

摘要： A valve train assembly is provided, comprising an exhaust camshaft having an exhaust lobe and a brake lobe, an exhaust lever mounted adjacent the exhaust lobe, a brake lever mounted adjacent the brake lobe, wherein the exhaust lever is coupled to the brake lever to provide simultaneous movement of the exhaust lever and the brake lever in response to the exhaust lobe and independent movement of the brake lever in response to the brake lobe.

摘要翻译： 提供了一种气门机构组件，其包括具有排气凸轮和制动凸轮的排气凸轮轴，邻近排气凸轮安装的排气杆，邻近制动凸轮安装的制动杆，其中排气杆联接到制动杆以提供 响应于排气门，排气杆和制动杆的同时运动以及响应于制动凸轮的制动杆的独立运动。

公开(公告)号：US20160032791A1

公开(公告)日：2016-02-04

申请号：US14448420

申请日：2014-07-31

申请人： Cummins, Inc.

发明人： Adam C. Cecil ,  David M. Barnes

IPC分类号： F01L1/344

CPC分类号： F01L1/3442 ,  F01L2001/3445 ,  F01L2001/34466 ,  F01L2001/34486

摘要： A variable valve timing system and methods of operation are provided. A primary valve train driver is configured to rotate about a primary axis. A primary camshaft includes a first plurality of cams positioned on the primary camshaft. The primary camshaft is coaxially coupled to the primary valve train driver. The first plurality of cams is configured to rotate about the primary axis. A primary camshaft phaser is coaxially coupled to the primary camshaft. The primary camshaft phaser is rotatably coupled to the primary valve train driver so as to rotate the primary camshaft phaser and the primary camshaft to a first phase angle. A secondary camshaft driver on the primary axis is coaxially coupled to the primary camshaft, and a secondary camshaft phaser is coaxially coupled to the primary camshaft and coupled to the secondary camshaft driver on the primary axis. The secondary camshaft phaser is rotatably coupled to the primary valve train driver so as to rotate the secondary camshaft driver on the primary axis to a second phase angle.

摘要翻译： 提供了可变气门正时系统和操作方法。 主阀列驱动器构造成围绕主轴线旋转。 主凸轮轴包括位于主凸轮轴上的第一多个凸轮。 主凸轮轴同轴联接到主阀系列驱动器。 第一组多个凸轮配置成围绕主轴旋转。 主凸轮轴相位器同轴地联接到主凸轮轴。 主凸轮轴相移器可旋转地联接到主气门机构驱动器，以使主凸轮轴相位器和主凸轮轴旋转到第一相位角。 主轴上的次级凸轮轴驱动器同轴联接到主凸轮轴，并且次级凸轮轴相位器同轴地联接到主凸轮轴并且联接到主轴上的次级凸轮轴驱动器。 次级凸轮轴相移器可旋转地联接到主气门机构驱动器，以使主凸轮轴驱动器在主轴上旋转到第二相位角。

公开(公告)号：US11927118B2

公开(公告)日：2024-03-12

申请号：US18104498

申请日：2023-02-01

申请人： Cummins Inc.

发明人： David M. Barnes ,  Kevin C. Augustin, Sr.

IPC分类号： F01L1/02 ,  F01L1/20 ,  F16H57/12

CPC分类号： F01L1/026 ,  F01L1/20 ,  F16H57/12 ,  F16H2057/125

摘要： The present disclosure provides a remote mount for an idler gear assembly, comprising: a gear mounting plate including a plurality of bores configured to receive a corresponding plurality of fasteners to mount a gear assembly to the gear mounting plate; and an attachment bracket including a plurality of mounting openings configured to receive a corresponding plurality of bolts to mount the remote mount to a cylinder head. The gear mounting plate supports the gear assembly such that a gear of the gear assembly rotates about an axis that is parallel to an axis of a crankshaft of an engine and the attachment bracket mounts to an upper surface of the cylinder head.

公开(公告)号：US10697332B2

公开(公告)日：2020-06-30

申请号：US16303465

申请日：2017-09-25

申请人： CUMMINS INC.

发明人： Adam C. Cecil ,  David M. Barnes

IPC分类号： F01L1/24 ,  F01L1/26 ,  F01L1/18 ,  F01L1/344 ,  F01L13/06

摘要： A valve train assembly (16) includes a fuel injector (1), an intake rocker lever assembly (10), and an exhaust rocker lever assembly (14). The intake and exhaust rocker lever assemblies (10) can include an eccentric hydraulic lash adjuster (11) that is located in the nose (31) of the respective rocker lever assemblies (10). The rocker lever assemblies (10) are configured to allow a clearance area between a nose (31) of the intake rocker lever assembly (10) and the nose (31) of the exhaust rocker lever assembly (14). As such, the fuel injector (1) can be positioned in the clearance area, while still allowing the eccentric hydraulic lash adjusters to apply a load onto a corresponding valve bridge (2). For example, the eccentric hydraulic lash adjuster (11) can include an outer housing (20) and a pivot ball (21), wherein the pivot ball (21) is positioned at an offset (23) from a lateral centerline of the outer housing (20).