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EP3289190A4 - Switching rocker arm assembly having eccentric axle for lash adjustment - Google Patents

Switching rocker arm assembly having eccentric axle for lash adjustment Download PDF

Info

Publication number
EP3289190A4
EP3289190A4 EP16787046.8A EP16787046A EP3289190A4 EP 3289190 A4 EP3289190 A4 EP 3289190A4 EP 16787046 A EP16787046 A EP 16787046A EP 3289190 A4 EP3289190 A4 EP 3289190A4
Authority
EP
European Patent Office
Prior art keywords
rocker arm
arm assembly
switching rocker
eccentric axle
lash adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16787046.8A
Other languages
German (de)
French (fr)
Other versions
EP3289190A1 (en
Inventor
Brent L. Rehm
Jr. James Edward Mccarthy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Corp
Original Assignee
Eaton Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Corp filed Critical Eaton Corp
Publication of EP3289190A1 publication Critical patent/EP3289190A1/en
Publication of EP3289190A4 publication Critical patent/EP3289190A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L2001/186—Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • F01L2001/467—Lost motion springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00—Valve arrangements comprising rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)
EP16787046.8A 2015-04-27 2016-04-27 Switching rocker arm assembly having eccentric axle for lash adjustment Withdrawn EP3289190A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562153004P 2015-04-27 2015-04-27
PCT/US2016/029515 WO2016176300A1 (en) 2015-04-27 2016-04-27 Switching rocker arm assembly having eccentric axle for lash adjustment

Publications (2)

Publication Number Publication Date
EP3289190A1 EP3289190A1 (en) 2018-03-07
EP3289190A4 true EP3289190A4 (en) 2019-01-02

Family

ID=57199734

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16787046.8A Withdrawn EP3289190A4 (en) 2015-04-27 2016-04-27 Switching rocker arm assembly having eccentric axle for lash adjustment

Country Status (6)

Country Link
US (1) US20180045081A1 (en)
EP (1) EP3289190A4 (en)
JP (1) JP2018514688A (en)
KR (1) KR20170140263A (en)
CN (1) CN107532485A (en)
WO (1) WO2016176300A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10253657B2 (en) * 2017-02-20 2019-04-09 Delphi Technologies Ip Limited Switchable rocker arm with a travel stop
WO2018207019A1 (en) * 2017-05-12 2018-11-15 Eaton Intelligent Power Limited Switchablen rocker arm with central springs
DE102017113481A1 (en) * 2017-06-20 2018-12-20 Schaeffler Technologies AG & Co. KG Disconnectable rocker arm for a valve train of an internal combustion engine
GB201721554D0 (en) * 2017-12-21 2018-02-07 Eaton Srl Rocker arm
DE102018102778B4 (en) * 2018-02-08 2024-05-23 Schaeffler Technologies AG & Co. KG Switchable rocker arm
US10472998B2 (en) * 2018-02-16 2019-11-12 Delphi Technologies Ip Limited Switchable rocker arm with lash adjustment
US11486272B2 (en) 2018-02-23 2022-11-01 Eaton Intelligent Power Limited Switching roller finger follower with re-settable starting position
US10519817B1 (en) 2018-08-29 2019-12-31 Delphi Technologies Ip Limited Switchable rocker arm with lash adjustment and travel stop
US11300014B2 (en) * 2018-12-06 2022-04-12 Jacobs Vehicle Systems, Inc. Valve actuation system comprising finger follower for lobe switching and single source lost motion
KR102533784B1 (en) * 2018-12-06 2023-05-16 자콥스 비히클 시스템즈, 인코포레이티드. Finger Follower for Lobe Transition and Single Source Lost Motion
US11208921B2 (en) * 2018-12-06 2021-12-28 Jacobs Vehicle Systems, Inc. Finger follower for lobe switching and single source lost motion
US10900385B2 (en) * 2019-01-29 2021-01-26 Delphi Technologies Ip Limited Switchable rocker arm
DE102020122920A1 (en) * 2020-09-02 2022-03-03 Schaeffler Technologies AG & Co. KG Switchable rocker arm for a valve drive of an internal combustion engine
KR20240011819A (en) * 2021-07-12 2024-01-26 자콥스 비히클 시스템즈, 인코포레이티드. Valve actuation system with finger followers for lobe switching and single-source lossy motion

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB113428A (en) * 1917-01-27 1918-05-16 Victor Jules Jouffret Henri
DE4220816A1 (en) * 1992-06-25 1994-01-05 Schaeffler Waelzlager Kg Adjustable valve control for IC engine - has adjustable intermediate member between cam and pivot lever along guide path
JPH1136833A (en) * 1997-07-22 1999-02-09 Otix:Kk Variable valve system mechanism
EP2418359A1 (en) * 2010-08-13 2012-02-15 Eaton Corporation Single lobe deactivating rocker arm

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04301105A (en) * 1991-03-28 1992-10-23 Suzuki Motor Corp Valve system of four-cycle engine
JPH10103028A (en) * 1996-09-27 1998-04-21 Nissan Diesel Motor Co Ltd Engine valve system
US6382151B2 (en) * 2000-02-24 2002-05-07 Delphi Technologies, Inc. Ring gear variable valve train device
JP5668953B2 (en) * 2010-03-19 2015-02-12 イートン コーポレーションＥａｔｏｎ Ｃｏｒｐｏｒａｔｉｏｎ Switchable rocker arm
CN102588030B (en) * 2011-01-05 2016-08-10 上海尤顺汽车部件有限公司 The auxiliary valve driving mechanism of electromotor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB113428A (en) * 1917-01-27 1918-05-16 Victor Jules Jouffret Henri
DE4220816A1 (en) * 1992-06-25 1994-01-05 Schaeffler Waelzlager Kg Adjustable valve control for IC engine - has adjustable intermediate member between cam and pivot lever along guide path
JPH1136833A (en) * 1997-07-22 1999-02-09 Otix:Kk Variable valve system mechanism
EP2418359A1 (en) * 2010-08-13 2012-02-15 Eaton Corporation Single lobe deactivating rocker arm

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2016176300A1 *

Also Published As

Publication number Publication date
US20180045081A1 (en) 2018-02-15
KR20170140263A (en) 2017-12-20
EP3289190A1 (en) 2018-03-07
JP2018514688A (en) 2018-06-07
CN107532485A (en) 2018-01-02
WO2016176300A1 (en) 2016-11-03

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Effective date: 20181203

RIC1 Information provided on ipc code assigned before grant

Ipc: F01L 13/00 20060101ALI20181127BHEP

Ipc: F01L 1/24 20060101ALI20181127BHEP

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