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WO2006004591A3 - Rocker arm system for engine valve actuation - Google Patents

Rocker arm system for engine valve actuation Download PDF

Info

Publication number
WO2006004591A3
WO2006004591A3 PCT/US2005/017038 US2005017038W WO2006004591A3 WO 2006004591 A3 WO2006004591 A3 WO 2006004591A3 US 2005017038 W US2005017038 W US 2005017038W WO 2006004591 A3 WO2006004591 A3 WO 2006004591A3
Authority
WO
WIPO (PCT)
Prior art keywords
rocker arm
primary
auxiliary
valve actuation
engine valve
Prior art date
Application number
PCT/US2005/017038
Other languages
French (fr)
Other versions
WO2006004591A2 (en
Inventor
James N Usko
Steve Sledesky
David Waldburger
Original Assignee
Jacobs Vehicle Systems Inc
James N Usko
Steve Sledesky
David Waldburger
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 Jacobs Vehicle Systems Inc, James N Usko, Steve Sledesky, David Waldburger filed Critical Jacobs Vehicle Systems Inc
Priority to JP2007513456A priority Critical patent/JP2007537396A/en
Publication of WO2006004591A2 publication Critical patent/WO2006004591A2/en
Publication of WO2006004591A3 publication Critical patent/WO2006004591A3/en

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
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/08—Shape of cams
    • 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
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the 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
    • 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • 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
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F01L13/065—Compression release engine retarders of the "Jacobs Manufacturing" type
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
    • F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
    • 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
    • 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]
    • 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
    • F01L2800/19—Valves opening several times per stroke

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)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Systems and methods for actuating engine valves are disclosed. The systems may include primary and auxiliary rocker arms disposed adjacent to each other on a rocker arm shaft. A rocker arm coupling assembly may be disposed between the auxiliary rocker arm and the primary rocker arm. The coupling assembly may include a piston having a curved surface disposed in a bore formed in the primary rocker arm, and a slot having a second radius of curvature formed in the auxiliary rocker arm. The piston may be selectively hydraulically locked into an extended position between the primary and auxiliary rocker arms so as to selectively transfer one or more auxiliary valve actuation motions from the auxiliary rocker arm to the primary rocker arm.
PCT/US2005/017038 2004-05-14 2005-05-13 Rocker arm system for engine valve actuation WO2006004591A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007513456A JP2007537396A (en) 2004-05-14 2005-05-13 Rocker arm system for engine valve operation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57081404P 2004-05-14 2004-05-14
US60/570,814 2004-05-14

Publications (2)

Publication Number Publication Date
WO2006004591A2 WO2006004591A2 (en) 2006-01-12
WO2006004591A3 true WO2006004591A3 (en) 2007-03-15

Family

ID=35783268

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/017038 WO2006004591A2 (en) 2004-05-14 2005-05-13 Rocker arm system for engine valve actuation

Country Status (4)

Country Link
US (1) US20050274341A1 (en)
JP (1) JP2007537396A (en)
CN (1) CN101084365A (en)
WO (1) WO2006004591A2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006002145A1 (en) * 2006-01-17 2007-07-19 Daimlerchrysler Ag Gas exchange valve actuating device
DE102006015893A1 (en) * 2006-04-05 2007-10-11 Daimlerchrysler Ag Gas exchange valve actuating device
EP2137386B1 (en) * 2007-03-16 2012-09-26 Jacobs Vehicle Systems, Inc. Engine brake having an articulate rocker arm and a rocker shaft mounted housing
CN101743384B (en) * 2007-06-01 2012-09-05 雅各布斯车辆系统公司 Variabale valve actuation system
CZ2007551A3 (en) * 2007-08-16 2009-02-25 HERBER@Libor Internal combustion engine reconstructed to compressor or air-operated motor
KR101047658B1 (en) * 2009-07-31 2011-07-07 기아자동차주식회사 Engine brake module
KR101057894B1 (en) * 2009-09-22 2011-08-22 기아자동차주식회사 Engine brake device of vehicle
KR101143559B1 (en) * 2009-09-25 2012-05-24 기아자동차주식회사 Apparaus of engine brake having combined oil passage
KR101134973B1 (en) * 2009-11-19 2012-04-09 기아자동차주식회사 Engine brake and engine provided with the same
JP5535695B2 (en) * 2010-03-08 2014-07-02 忠孝 山手 engine
KR101569663B1 (en) * 2011-05-26 2015-11-17 자콥스 비히클 시스템즈, 인코포레이티드. Primary and auxiliary rocker arm assembly for engine valve actuation
CN102817667B (en) * 2012-09-10 2016-02-03 浙江亿日气动科技有限公司 There is the frame type valve actuating device that auxiliary rocker arm application auxiliary cam drives
US9512786B2 (en) 2012-09-25 2016-12-06 Renault Trucks Valve actuation mechanism and automotive vehicle equipped with such a valve actuation mechanism
BR112015012320A2 (en) 2012-12-18 2017-07-11 Jacobs Vehicle Systems Inc rocker lock to control engine valve actuation
CN113167146B (en) 2018-12-07 2022-09-27 雅各布斯车辆系统公司 Valve actuation system including two rocker arms and a tightening mechanism
US11486274B2 (en) * 2018-12-07 2022-11-01 Jacobs Vehicle Systems, Inc. Valve actuation system comprising at least two rocker arms and a one-way coupling mechanism
CN113423923B (en) 2018-12-29 2023-01-06 潍柴动力股份有限公司 Engine variable valve drive mechanism and engine
BR112022015648A2 (en) 2020-02-21 2022-09-27 Jacobs Vehicle Systems Inc MOTOR VALVE Actuation WITH SWITCH CONTROL BETWEEN COOPERATIVE VALVE Actuation MOVEMENTS
US11333048B1 (en) * 2020-12-18 2022-05-17 Caterpillar Inc. Hydro-mechanical module for engine valve actuation system
CN117514405A (en) * 2022-08-04 2024-02-06 伊顿智能动力有限公司 swing arm
WO2024079642A1 (en) 2022-10-12 2024-04-18 Cummins Inc. Valve actuation system comprising a discrete lost motion device
US12018599B1 (en) 2022-12-17 2024-06-25 Jacobs Vehicle Systems, Inc. Valve actuation system comprising rocker assemblies with one-way coupling therebetween

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003010420A1 (en) * 2001-07-26 2003-02-06 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine valve control apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996550A (en) * 1997-07-14 1999-12-07 Diesel Engine Retarders, Inc. Applied lost motion for optimization of fixed timed engine brake system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003010420A1 (en) * 2001-07-26 2003-02-06 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine valve control apparatus

Also Published As

Publication number Publication date
JP2007537396A (en) 2007-12-20
WO2006004591A2 (en) 2006-01-12
US20050274341A1 (en) 2005-12-15
CN101084365A (en) 2007-12-05

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