公开(公告)号：US20230358299A1

公开(公告)日：2023-11-09

申请号：US18224435

申请日：2023-07-20

Applicant: Cummins Inc.

Inventor： James A. Dods ,  Michael J. Cooper ,  Paul A. Leggott ,  Graham Dowson

IPC: F16H7/06 ,  F16H55/30

CPC classification number: F16H7/06 ,  F16H55/30 ,  F01L1/022

Abstract: The present disclosure provides a captive sprocket system for an engine, comprising: a sprocket including a first sprocket gear, a second sprocket gear and a retaining disc having a diameter and a thickness; a cylinder block having a bore with a central opening and a plurality of threaded bosses, the plurality of threaded bosses together forming an axial support surface and a radial location surface, the axial support surface and the radial location surface being sized to receive the retaining disc of the sprocket to support and locate the sprocket; and a plurality of captivation screws configured to be received by the plurality of threaded bosses, each captivation screw having a head with a lower surface which, when the captivation screw is received by a threaded boss, overlies the retaining disc and retains the sprocket in the bore.

公开(公告)号：US20200278083A1

公开(公告)日：2020-09-03

申请号：US16647836

申请日：2018-10-26

Applicant: CUMMINS INC.

Inventor： James A. Dods ,  Paul Andrew Leggott

IPC: F16N39/02 ,  B01D35/18 ,  B01D35/147 ,  B01D35/30 ,  B01D35/00 ,  F16N39/06 ,  F28F3/08

Abstract: A lubricant filter housing comprises a top plate defining a first opening. A base plate is positioned opposite the top plate. The lubricant filter housing further comprises at least one sidewall which cooperatively with the top plate and the base plate defines an internal volume. A plurality of plates are axially positioned in the internal volume between the top plate and the base plate. Each plate defines a plate opening axially aligned with the first opening which cooperatively with the first opening and a portion of the base plate, defines an internal cavity for housing a filter element. The plates define a first set of fluid channels structured to deliver a lubricant to the internal cavity, and a second set of fluid channels structured to provide a coolant around the first set of fluid channels.

公开(公告)号：US10724452B2

公开(公告)日：2020-07-28

申请号：US16333474

申请日：2017-09-19

Applicant: CUMMINS INC.

Inventor： James A. Dods ,  John Jerl Purcell ,  John Peter Jones ,  John R. Anderson ,  Paul Andrew Leggott ,  Graham Dowson

IPC: F02D41/14 ,  F02D41/00 ,  F02M26/41 ,  F02M26/47 ,  F02D41/18 ,  F02F1/24

Abstract: A cylinder head defines an EGR crossover tube integrally formed in the cylinder head. The EGR crossover tube includes a first end fluidly coupled to an exhaust port of an engine. A second end is fluidly coupled to an intake port of the engine. A Venturi tube configuration is positioned between the first and second ends. A first sensor port extends through the cylinder head to the EGR crossover tube. The first sensor port is positioned at a restriction of the Venturi tube configuration. A second sensor port extends through the cylinder head to the EGR crossover tube. The second sensor port is positioned proximate the first end. A differential pressure sensor includes a first pressure sensor positioned in the first sensor port and a second pressure sensor positioned in the second sensor port.

公开(公告)号：US11746859B2

公开(公告)日：2023-09-05

申请号：US17057178

申请日：2019-05-23

Applicant: Cummins Inc.

Inventor： James A. Dods ,  Michael J. Cooper ,  Paul A. Leggott ,  Graham Dowson

IPC: F16H7/06 ,  F16H55/30 ,  F01L1/02 ,  F01L1/047 ,  F02B67/06

CPC classification number: F16H7/06 ,  F16H55/30 ,  F01L1/022 ,  F01L1/047 ,  F02B67/06 ,  F16H2055/306

Abstract: The present disclosure provides a captive sprocket system for an engine, comprising: a sprocket including a first sprocket gear, a second sprocket gear and a retaining disc having a diameter and a thickness; a cylinder block having a bore with a central opening and a plurality of threaded bosses, the plurality of threaded bosses together forming an axial support surface and a radial location surface, the axial support surface and the radial location surface being sized to receive the retaining disc of the sprocket to support and locate the sprocket; and a plurality of captivation screws configured to be received by the plurality of threaded bosses, each captivation screw having a head with a lower surface which, when the captivation screw is received by a threaded boss, overlies the retaining disc and retains the sprocket in the bore.

公开(公告)号：US20220145791A1

公开(公告)日：2022-05-12

申请号：US17648733

申请日：2022-01-24

Applicant: Cummins Inc.

Inventor： James A. Dods ,  Nathaniel P. Hassall ,  Adam C. Cecil ,  Aaron S. Quinton

IPC: F01P3/06 ,  F01P7/14

Abstract: Systems and devices are disclosed for controlling fluid flow to piston cooling nozzles with a fluid flow control device configured to open when an internal combustion engine requires piston cooling at high speed but remains open for a period of time after the engine speed drops below a threshold to prevent heat soak damage to the pistons.

公开(公告)号：US20230313714A1

公开(公告)日：2023-10-05

申请号：US18190454

申请日：2023-03-27

Applicant: Cummins Inc.

Inventor： James A. Dods ,  Brett A. Heald ,  Alan Ronald Bennett

IPC: F01L1/24

CPC classification number: F01L1/2416

Abstract: Valve actuation mechanisms are provided for hydraulically controlling cylinder deactivation and variable valve lift operations. The valve actuation mechanisms include a hydraulic circuit that is selectively pressurized to secure a reciprocating member in an extended position to transfer motion from the camshaft lobe to the intake valves or exhaust valves, and vented to allow the reciprocating member to reciprocate.

公开(公告)号：US11649757B2

公开(公告)日：2023-05-16

申请号：US17648733

申请日：2022-01-24

Applicant: Cummins Inc.

Inventor： James A. Dods ,  Nathaniel P. Hassall ,  Adam C. Cecil ,  Aaron S. Quinton

IPC: F01P3/06 ,  F01P7/14

CPC classification number: F01P3/06 ,  F01P7/14 ,  F01P2007/146 ,  F01P2025/04 ,  F01P2025/60

Abstract: Systems and devices are disclosed for controlling fluid flow to piston cooling nozzles with a fluid flow control device configured to open when an internal combustion engine requires piston cooling at high speed but remains open for a period of time after the engine speed drops below a threshold to prevent heat soak damage to the pistons.

公开(公告)号：US11215321B2

公开(公告)日：2022-01-04

申请号：US16647836

申请日：2018-10-26

Applicant: CUMMINS INC.

Inventor： James A. Dods ,  Paul Andrew Leggott

IPC: B01D35/30 ,  F16N39/02 ,  B01D35/00 ,  B01D35/147 ,  B01D35/18 ,  F16N39/06 ,  F28F3/08 ,  F01M5/00 ,  F01M11/03

Abstract: A lubricant filter housing comprises a top plate defining a first opening. A base plate is positioned opposite the top plate. The lubricant filter housing further comprises at least one sidewall which cooperatively with the top plate and the base plate defines an internal volume. A plurality of plates are axially positioned in the internal volume between the top plate and the base plate. Each plate defines a plate opening axially aligned with the first opening which cooperatively with the first opening and a portion of the base plate, defines an internal cavity for housing a filter element. The plates define a first set of fluid channels structured to deliver a lubricant to the internal cavity, and a second set of fluid channels structured to provide a coolant around the first set of fluid channels.

公开(公告)号：US20210207690A1

公开(公告)日：2021-07-08

申请号：US17057178

申请日：2019-05-23

Applicant: Cummins Inc.

Inventor： James A. Dods ,  Michael J. Cooper ,  Paul A. Leggott ,  Graham Dowson

IPC: F16H7/06 ,  F16H55/30

Abstract: The present disclosure provides a captive sprocket system for an engine, comprising: a sprocket including a first sprocket gear, a second sprocket gear and a retaining disc having a diameter and a thickness; a cylinder block having a bore with a central opening and a plurality of threaded bosses, the plurality of threaded bosses together forming an axial support surface and a radial location surface, the axial support surface and the radial location surface being sized to receive the retaining disc of the sprocket to support and locate the sprocket; and a plurality of captivation screws configured to be received by the plurality of threaded bosses, each captivation screw having a head with a lower surface which, when the captivation screw is received by a threaded boss, overlies the retaining disc and retains the sprocket in the bore.

公开(公告)号：US20190264626A1

公开(公告)日：2019-08-29

申请号：US16333474

申请日：2017-09-19

Applicant: CUMMINS INC.

Inventor： James A. Dods ,  John Jerl Purcell ,  John Peter Jones ,  John R. Anderson ,  Paul Andrew Leggott ,  Graham Dowson

IPC: F02D41/00 ,  F02D41/14 ,  F02D41/18 ,  F02F1/24 ,  F02M26/41 ,  F02M26/47

Abstract: A cylinder head defines an EGR crossover tube integrally formed in the cylinder head. The EGR crossover tube includes a first end fluidly coupled to an exhaust port of an engine. A second end is fluidly coupled to an intake port of the engine. A Venturi tube configuration is positioned between the first and second ends. A first sensor port extends through the cylinder head to the EGR crossover tube. The first sensor port is positioned at a restriction of the Venturi tube configuration. A second sensor port extends through the cylinder head to the EGR crossover tube. The second sensor port is positioned proximate the first end. A differential pressure sensor includes a first pressure sensor positioned in the first sensor port and a second pressure sensor positioned in the second sensor port.