EP3314097A4 - Switching rocker arm for internal exhaust gas recirculation with simple latch control - Google Patents

Switching rocker arm for internal exhaust gas recirculation with simple latch control Download PDF

Info

Publication number
EP3314097A4
EP3314097A4 EP16818668.2A EP16818668A EP3314097A4 EP 3314097 A4 EP3314097 A4 EP 3314097A4 EP 16818668 A EP16818668 A EP 16818668A EP 3314097 A4 EP3314097 A4 EP 3314097A4
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
rocker arm
gas recirculation
latch control
internal exhaust
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.)
Granted
Application number
EP16818668.2A
Other languages
German (de)
French (fr)
Other versions
EP3314097B1 (en
EP3314097A1 (en
Inventor
Matthew Vance
Guruprasath ALAGARSAMY
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 Intelligent Power Ltd
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 EP3314097A1 publication Critical patent/EP3314097A1/en
Publication of EP3314097A4 publication Critical patent/EP3314097A4/en
Application granted granted Critical
Publication of EP3314097B1 publication Critical patent/EP3314097B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F01L13/0021—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 by modification of rocker arm ratio
    • 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
    • F01L1/181—Centre 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
    • 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
    • F01L13/0015—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
    • F01L1/12—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
    • 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
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • F01L2800/10—Providing exhaust gas recirculation [EGR]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP16818668.2A 2015-06-29 2016-06-29 Switching rocker arm for internal exhaust gas recirculation with simple latch control Active EP3314097B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1943DE2015 2015-06-29
PCT/US2016/040058 WO2017004179A1 (en) 2015-06-29 2016-06-29 Switching rocker arm for internal exhaust gas recirculation with simple latch control

Publications (3)

Publication Number Publication Date
EP3314097A1 EP3314097A1 (en) 2018-05-02
EP3314097A4 true EP3314097A4 (en) 2019-03-13
EP3314097B1 EP3314097B1 (en) 2020-04-29

Family

ID=57609147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16818668.2A Active EP3314097B1 (en) 2015-06-29 2016-06-29 Switching rocker arm for internal exhaust gas recirculation with simple latch control

Country Status (5)

Country Link
US (1) US20180119584A1 (en)
EP (1) EP3314097B1 (en)
JP (1) JP2018519466A (en)
CN (1) CN107787394A (en)
WO (1) WO2017004179A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016115100A1 (en) 2015-01-13 2016-07-21 Eaton Corporation Switching rocker arm
USD857752S1 (en) * 2015-07-13 2019-08-27 Eaton Corporation Rocker arm
JP6571569B2 (en) 2016-03-18 2019-09-04 株式会社オティックス Variable valve mechanism for internal combustion engine
WO2020020492A1 (en) * 2018-07-27 2020-01-30 Eaton Intelligent Power Limited Center pivot latched deactivating rocker arm

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6532920B1 (en) * 2002-02-08 2003-03-18 Ford Global Technologies, Inc. Multipositional lift rocker arm assembly
US20030209217A1 (en) * 2002-05-08 2003-11-13 Hendriksma Nick J. Two-step finger follower rocker arm assembly
DE10310219A1 (en) * 2003-03-08 2004-09-16 Daimlerchrysler Ag Mechanism coupling or de-coupling components operating engine valve, includes electromagnet fastened to cylinder head of engine
US20110226209A1 (en) * 2010-03-19 2011-09-22 Eaton Corporation Switching rocker arm
US20130186358A1 (en) * 2012-01-23 2013-07-25 Schaeffler Technologies AG & Co. KG Roller finger follower with swivelable valve pallet
US20130239919A1 (en) * 2012-03-16 2013-09-19 Schaeffler Technologies AG & Co. KG Three arm finger follower with cam switching profile and compression lost motion springs

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003042506A1 (en) * 2001-11-14 2003-05-22 Ina-Schaeffler Kg Rocker arm in a valve train on an internal combustion engine
DE10318295A1 (en) * 2003-04-23 2004-11-11 Ina-Schaeffler Kg Drag lever of a valve train of an internal combustion engine
US7047925B2 (en) * 2004-03-03 2006-05-23 Delphi Technologies, Inc. Dual feed hydraulic lash adjuster
US7318402B2 (en) * 2005-11-21 2008-01-15 Eaton Corporation Dual lift rocker arm latch mechanism and actuation arrangement therefor
JP4896817B2 (en) * 2006-07-25 2012-03-14 本田技研工業株式会社 Variable valve operating device for internal combustion engine
US8733311B2 (en) * 2010-02-12 2014-05-27 Schaeffler Technologies AG & Co. KG Switchable roller finger follower
EP2770174B1 (en) * 2013-02-22 2017-05-10 Eaton Corporation Variable valve actuation rocker arm assembly
CN203547817U (en) * 2013-11-14 2014-04-16 东风汽车公司 Variable rocker arm

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6532920B1 (en) * 2002-02-08 2003-03-18 Ford Global Technologies, Inc. Multipositional lift rocker arm assembly
US20030209217A1 (en) * 2002-05-08 2003-11-13 Hendriksma Nick J. Two-step finger follower rocker arm assembly
DE10310219A1 (en) * 2003-03-08 2004-09-16 Daimlerchrysler Ag Mechanism coupling or de-coupling components operating engine valve, includes electromagnet fastened to cylinder head of engine
US20110226209A1 (en) * 2010-03-19 2011-09-22 Eaton Corporation Switching rocker arm
US20130186358A1 (en) * 2012-01-23 2013-07-25 Schaeffler Technologies AG & Co. KG Roller finger follower with swivelable valve pallet
US20130239919A1 (en) * 2012-03-16 2013-09-19 Schaeffler Technologies AG & Co. KG Three arm finger follower with cam switching profile and compression lost motion springs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2017004179A1 *

Also Published As

Publication number Publication date
JP2018519466A (en) 2018-07-19
EP3314097B1 (en) 2020-04-29
CN107787394A (en) 2018-03-09
EP3314097A1 (en) 2018-05-02
US20180119584A1 (en) 2018-05-03
WO2017004179A1 (en) 2017-01-05

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