公开(公告)号：US11162394B2

公开(公告)日：2021-11-02

申请号：US17008317

申请日：2020-08-31

Applicant: DEERE & COMPANY

Inventor： Neil S. Erickson ,  Alok N. Pandey ,  Eric J. Rego

IPC: F01L1/24 ,  F01L1/047 ,  F01L1/18 ,  F01L13/06 ,  F02F1/24 ,  F02F1/42 ,  F01L1/26 ,  F01L13/00

Abstract: A hydraulic lash adjuster for use in diesel engines including a cylinder head having a first valve, a second valve, and a valve bridge extending between and in contact with both the first valve and the second valve. Where the diesel engine includes a first rocker arm, and where at least one of the first valve and the second valve undergo an oil can valve deflection rate. The hydraulic lash is configured to selectively transmit force between the first rocker arm and the valve bridge, and where the hydraulic lash adjuster is normally in the open configuration, and where the hydraulic lash adjuster changes from the open configuration to a closed configuration at a critical velocity that is greater than the oil can valve deflection rate.

公开(公告)号：US20210062686A1

公开(公告)日：2021-03-04

申请号：US17008317

申请日：2020-08-31

Applicant: DEERE & COMPANY

Inventor： Neil S. Erickson ,  Alok N. Pandey ,  Eric J. Rego

IPC: F01L1/24 ,  F01L1/18 ,  F01L13/06 ,  F01L13/00 ,  F02F1/42 ,  F01L1/26 ,  F02F1/24 ,  F01L1/047

Abstract: A hydraulic lash adjuster for use in diesel engines including a cylinder head having a first valve, a second valve, and a valve bridge extending between and in contact with both the first valve and the second valve. Where the diesel engine includes a first rocker arm, and where at least one of the first valve and the second valve undergo an oil can valve deflection rate. The hydraulic lash is configured to selectively transmit force between the first rocker arm and the valve bridge, and where the hydraulic lash adjuster is normally in the open configuration, and where the hydraulic lash adjuster changes from the open configuration to a closed configuration at a critical velocity that is greater than the oil can valve deflection rate.

公开(公告)号：US20230212965A1

公开(公告)日：2023-07-06

申请号：US17569298

申请日：2022-01-05

Applicant: DEERE & COMPANY

Inventor： Kyle D. Redfern ,  Neil S. Erickson ,  Gregory J. Horton

IPC: F01L13/06 ,  F01L1/24 ,  F01L1/047 ,  F02D13/04

CPC classification number: F01L13/06 ,  F01L1/24 ,  F01L1/047 ,  F02D13/04 ,  F01L2305/00

Abstract: An engine braking system includes a camshaft, a follower, an exhaust armature, a lever, and a hydraulically actuated piston. The camshaft includes at least one cam. The cam has a lobe and a brake bump. The follower engages the cam. The exhaust armature is coupled to the follower. The lever is coupled to the exhaust armature. The hydraulically actuated piston moves the lever. Hydraulic actuation of the piston causes a change in lash distance between the cam and the follower. In an engine brake mode, the follower contacts the cam throughout rotation of the cam.

公开(公告)号：US20220268183A1

公开(公告)日：2022-08-25

申请号：US17503911

申请日：2021-10-18

Applicant: Deere & Company

Inventor： Neil S. Erickson

IPC: F01L13/06 ,  F01L1/24 ,  F01L13/00 ,  F01L1/18

Abstract: A Type II valvetrain and engine brake arrangement includes a hydraulic brake housing mountable to a valve block of the engine. A brake piston is coupled to a brake rod and a brake cam lobe and is movable between an activated position and a non-activated position. A finger follower is disposed relative to the brake housing so that the brake rod engages the finger follower at least when the brake piston is in the activated position. When the brake piston is in a non-activated position, the finger follower is configured to pivot about a pivot as the finger follower follows a valve cam lobe to effect lifting and seating of a cylinder valve of an engine cylinder. When the brake piston is in the activated position, the finger follower, at least in part, pivots from about the pivot and the brake rod engages an end of the finger follower to lift the cylinder valve and release compression from the engine cylinder.

公开(公告)号：US09638073B2

公开(公告)日：2017-05-02

申请号：US14752037

申请日：2015-06-26

Applicant: DEERE & COMPANY

Inventor： Neil S. Erickson ,  Christopher L. Bradshaw ,  Richard T. Hurban ,  Steven A. Reich ,  Micheal A. Langner

IPC: F01L1/18 ,  F01L1/20 ,  F01M9/10 ,  F01L1/24

CPC classification number: F01L1/182 ,  F01L1/146 ,  F01L1/18 ,  F01L1/183 ,  F01L1/20 ,  F01L1/2411 ,  F01L1/2422 ,  F01M9/105

Abstract: Valvetrain of an internal combustion engine, including a rocker support, a fulcrum, and a rocker. The rocker support is mounted to a cylinder head and fixed relative thereto. The rocker is positioned about the rocker support and partially in an axial aligning groove of the rocker support. The fulcrum is sandwiched between the rocker support and the rocker. The rocker oscillates about the fulcrum as forces are received and applied to a first and a second end of the rocker.

公开(公告)号：US12152515B2

公开(公告)日：2024-11-26

申请号：US17569298

申请日：2022-01-05

Applicant: DEERE & COMPANY

Inventor： Kyle D. Redfern ,  Neil S. Erickson ,  Gregory J. Horton

IPC: F01L13/06 ,  F01L1/047 ,  F01L1/053 ,  F01L1/18 ,  F01L1/24 ,  F01L1/26 ,  F01L13/00 ,  F02D13/04

Abstract: An engine braking system includes a camshaft, a follower, an exhaust armature, a lever, and a hydraulically actuated piston. The camshaft includes at least one cam. The cam has a lobe and a brake bump. The follower engages the cam. The exhaust armature is coupled to the follower. The lever is coupled to the exhaust armature. The hydraulically actuated piston moves the lever. Hydraulic actuation of the piston causes a change in lash distance between the cam and the follower. In an engine brake mode, the follower contacts the cam throughout rotation of the cam.

公开(公告)号：US11448104B2

公开(公告)日：2022-09-20

申请号：US17503911

申请日：2021-10-18

Applicant: Deere & Company

Inventor： Neil S. Erickson

IPC: F02D1/00 ,  F01L13/06 ,  F01L1/18 ,  F01L13/00 ,  F01L1/24

Abstract: A Type II valvetrain and engine brake arrangement includes a hydraulic brake housing mountable to a valve block of the engine. A brake piston is coupled to a brake rod and a brake cam lobe and is movable between an activated position and a non-activated position. A finger follower is disposed relative to the brake housing so that the brake rod engages the finger follower at least when the brake piston is in the activated position. When the brake piston is in a non-activated position, the finger follower is configured to pivot about a pivot as the finger follower follows a valve cam lobe to effect lifting and seating of a cylinder valve of an engine cylinder. When the brake piston is in the activated position, the finger follower, at least in part, pivots from about the pivot and the brake rod engages an end of the finger follower to lift the cylinder valve and release compression from the engine cylinder.

公开(公告)号：US11181018B1

公开(公告)日：2021-11-23

申请号：US17185536

申请日：2021-02-25

Applicant: Deere & Company

Inventor： Neil S. Erickson ,  John Mandell

IPC: F02D1/00 ,  F01L13/06 ,  F01L13/00 ,  F01L1/24 ,  F01L1/18

Abstract: A Type II valvetrain and engine brake arrangement includes a brake housing defining a hydraulic circuit and a follower piston chamber and a brake piston chamber. A follower piston in the follower piston chamber is configured to follow a rotating brake cam lobe. A brake piston in the brake piston chamber is in pressure responsive relation with the follower piston to move. A finger follower is disposed so that a brake rod coupled to the brake piston engages the finger follower at least when the brake piston is in an activated position. When the brake piston is the activated position, the finger follower pivots from a first end about a pivot as the finger follower follows a valve cam lobe to effect lifting and seating of a cylinder valve. When the brake piston is activated, the finger follower, at least in part, pivots from the first end about the pivot and the brake rod lifts the cylinder valve and released compression from the engine cylinder.

公开(公告)号：US10794235B1

公开(公告)日：2020-10-06

申请号：US16560546

申请日：2019-09-04

Applicant: Deere & Company

Inventor： Neil S. Erickson ,  Alok N. Pandey ,  Eric J. Rego

IPC: F01L1/24 ,  F01L1/047 ,  F01L1/18 ,  F01L13/06 ,  F02F1/24 ,  F02F1/42 ,  F01L1/26 ,  F01L13/00

Abstract: A hydraulic lash adjuster for use in diesel engines including a cylinder head having a first valve, a second valve, and a valve bridge extending between and in contact with both the first valve and the second valve. Where the diesel engine includes a first rocker arm, and where at least one of the first valve and the second valve undergo an oil can valve deflection rate. The hydraulic lash is configured to selectively transmit force between the first rocker arm and the valve bridge, and where the hydraulic lash adjuster is normally in the open configuration, and where the hydraulic lash adjuster changes from the open configuration to a closed configuration at a critical velocity that is greater than the oil can valve deflection rate.