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公开(公告)号：US20200040839A1
公开(公告)日：2020-02-06
申请号：US16050596
申请日：2018-07-31
Applicant: CUMMINS INC.
Inventor： David M. Barnes , David J. Eckroth
Abstract: An internal combustion engine includes a cylinder head and a cylinder block. The cylinder head includes a first boss cylinder head conduit portion and a first boss cylinder head cavity portion. The first boss cylinder head conduit portion is configured to receive a first fastener without threadably engaging the first fastener. The first boss cylinder head conduit portion has a first diameter. The first boss cylinder head cavity portion is aligned with the first boss cylinder head conduit portion. The first boss cylinder head cavity portion is configured to receive the first fastener without threadably engaging the first fastener. The first boss cylinder head cavity portion has a second diameter greater than the first diameter. The cylinder block is coupled to the cylinder head. The cylinder block includes a first boss cylinder block threaded portion.
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公开(公告)号：US10024247B2
公开(公告)日：2018-07-17
申请号：US15081493
申请日：2016-03-25
Applicant: Cummins Inc.
Inventor： Darren Ting , David M. Barnes
Abstract: 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.
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公开(公告)号：US20170089248A1
公开(公告)日：2017-03-30
申请号：US15277823
申请日：2016-09-27
Applicant: Cummins Inc.
Inventor： Andrea M. Evans , Michael J. Ruth , David M. Barnes , Jason W. Mackey , Krishna Pradeep Chilumukuru , Rick Vaughan Lewis, JR.
CPC classification number: F01N13/009 , F01N3/021 , F01N3/106 , F01N3/2066 , F01N13/107 , F01N13/1805 , F01N2340/02 , F01N2340/04 , F02B75/22 , Y02A50/2325 , Y02T10/24
Abstract: An apparatus includes an internal combustion engine having a plurality of cylinders allocated between a first bank having a first cylinder head and a second bank having a second cylinder head. A medial space is defined between the first bank and the second bank. An exhaust system is in fluid receiving communication with the internal combustion engine and in fluid providing communication with the atmosphere. The exhaust system includes an aftertreatment system that is disposed at least in part at the medial space between the first bank and the second bank of the internal combustion engine.
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公开(公告)号：US12264604B2
公开(公告)日：2025-04-01
申请号：US17884546
申请日：2022-08-09
Applicant: Cummins Inc.
Inventor： Govindarajan Kothandaraman , Lyle E. Kocher , David M. Barnes , Scott Robert Bardakjy , J. Steven Kolhouse
Abstract: 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.
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公开(公告)号：US20250067199A1
公开(公告)日：2025-02-27
申请号：US18940402
申请日：2024-11-07
Applicant: Cummins Inc.
Inventor： Nathaniel P. Hassall , John Jerl Purcell, III , Stephen D. Cofer, JR. , David M. Barnes , Aaron S. Quinton , Reid M. Irish
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US12163449B2
公开(公告)日：2024-12-10
申请号：US18212657
申请日：2023-06-21
Applicant: Cummins Inc.
Inventor： Nathaniel P. Hassall , John Jerl Purcell, III , Stephen D. Cofer, Jr. , David M. Barnes , Aaron S. Quinton , Reid M. Irish
Abstract: 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.
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公开(公告)号：US20230175419A1
公开(公告)日：2023-06-08
申请号：US18104498
申请日：2023-02-01
Applicant: Cummins Inc.
Inventor： David M. Barnes , Kevin C. Augustin, SR.
CPC classification number: F01L1/026 , F01L1/20 , F16H57/12 , F16H2057/125
Abstract: 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.
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公开(公告)号：US11591937B2
公开(公告)日：2023-02-28
申请号：US16771086
申请日：2017-12-13
Applicant: Cummins Inc.
Inventor： David M. Barnes , Kevin C. Augustin, Sr.
Abstract: 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.
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公开(公告)号：US10794449B2
公开(公告)日：2020-10-06
申请号：US15564415
申请日：2015-04-14
Applicant: CUMMINS INC.
Inventor： David M. Barnes , Adam Jordan Pate
Abstract: Variable counterweight apparatuses, systems and methods. The variable counterweight system includes at least one rotatable actuator, a first variable counterweight assembly, and a second variable counterweight assembly. The first variable counterweight assembly is rotatably coupled to the rotatable actuator to rotate about a first axis. The first variable counterweight assembly is configured to geometrically reconfigure so as to change a first variable counterweight assembly center of gravity position with respect to the first variable counterweight assembly. The second variable counterweight assembly is rotatably coupled to the rotatable actuator to rotate about a second axis. The second variable counterweight assembly is configured to geometrically reconfigure so as to change a second variable counterweight assembly center of gravity position with respect to the second variable counterweight assembly.
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公开(公告)号：US09470177B2
公开(公告)日：2016-10-18
申请号：US14597671
申请日：2015-01-15
Applicant: Cummins Inc.
Inventor： Jeffrey D. Jones , Vipin Prabhakaran , David M. Barnes
CPC classification number: F02F1/24 , F02F1/242 , F02F1/42 , F02F1/4285 , F02F2001/008
Abstract: Rib configurations for increasing the structural efficiency of a cylinder head, which relates to a peak combustion pressure capability of the cylinder head. In addition to increasing peak combustion pressure, the rib configurations may also improve sealing of the cylinder head and may improve the durability of an associated cylinder head gasket.
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