EP3976942A4 - Finger follower for lobe switching and single source lost motion - Google Patents

Finger follower for lobe switching and single source lost motion Download PDF

Info

Publication number
EP3976942A4
EP3976942A4 EP20813673.9A EP20813673A EP3976942A4 EP 3976942 A4 EP3976942 A4 EP 3976942A4 EP 20813673 A EP20813673 A EP 20813673A EP 3976942 A4 EP3976942 A4 EP 3976942A4
Authority
EP
European Patent Office
Prior art keywords
lost motion
single source
finger follower
lobe switching
source lost
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.)
Pending
Application number
EP20813673.9A
Other languages
German (de)
French (fr)
Other versions
EP3976942A1 (en
Inventor
John Mandell
Gabriel S. ROBERTS
Robb Janak
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.)
Jacobs Vehicle Systems Inc
Original Assignee
Jacobs Vehicle Systems Inc
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
Priority claimed from US16/706,226 external-priority patent/US11060426B2/en
Application filed by Jacobs Vehicle Systems Inc filed Critical Jacobs Vehicle Systems Inc
Publication of EP3976942A1 publication Critical patent/EP3976942A1/en
Publication of EP3976942A4 publication Critical patent/EP3976942A4/en
Pending 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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • 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
    • 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
    • F01L13/06—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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/04—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation using engine as brake
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
    • F01L2013/001—Deactivating cylinders
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/06—Cutting-out cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve Device For Special Equipments (AREA)
EP20813673.9A 2019-05-28 2020-05-28 Finger follower for lobe switching and single source lost motion Pending EP3976942A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962853599P 2019-05-28 2019-05-28
US16/706,226 US11060426B2 (en) 2018-12-06 2019-12-06 Finger follower for lobe switching and single source lost motion
PCT/IB2020/055090 WO2020240479A1 (en) 2019-05-28 2020-05-28 Finger follower for lobe switching and single source lost motion

Publications (2)

Publication Number Publication Date
EP3976942A1 EP3976942A1 (en) 2022-04-06
EP3976942A4 true EP3976942A4 (en) 2023-06-21

Family

ID=73553977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20813673.9A Pending EP3976942A4 (en) 2019-05-28 2020-05-28 Finger follower for lobe switching and single source lost motion

Country Status (5)

Country Link
EP (1) EP3976942A4 (en)
JP (1) JP7302018B2 (en)
CN (1) CN113891986B (en)
BR (1) BR112021022272A2 (en)
WO (1) WO2020240479A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11828205B2 (en) 2020-01-16 2023-11-28 Eaton Intelligent Power Limited Latch assembly and compact rocker arm assembly
US12025037B2 (en) 2021-03-05 2024-07-02 Eaton Intelligent Power Limited Bidirectional latch pin assembly, switchable rocker arm, and valvetrain assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140290608A1 (en) * 2011-11-06 2014-10-02 Eaton Corporation Latch pin assembly; rocker arm arrangement using latch pin assembly; and assembling methods
US20150275712A1 (en) * 2014-03-31 2015-10-01 Schaeffler Technologies AG & Co. KG Switchable finger follower with normally unlocked coupling element
WO2019012432A1 (en) * 2017-07-10 2019-01-17 Eaton Intelligent Power Limited Switching roller finger follower for valvetrain

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US383A (en) 1837-09-20 Henby a
US9347A (en) 1852-10-19 Bedstead
JP2007526423A (en) 2004-03-03 2007-09-13 ティムケン ユーエス コーポレーション Switchable finger follower assembly
US6966291B1 (en) * 2004-10-28 2005-11-22 Delphi Technologies, Inc. Latch timing mechanism for a two-step roller finger cam follower
US7712449B1 (en) * 2009-05-06 2010-05-11 Jacobs Vehicle Systems, Inc. Lost motion variable valve actuation system for engine braking and early exhaust opening
US8550047B2 (en) * 2009-06-09 2013-10-08 Honda Motor Co., Ltd. Valve control apparatus for internal combustion engine
US9347383B2 (en) 2013-02-26 2016-05-24 Jacobs Vehicle Systems, Inc. Intra-cylinder auxiliary actuation of engine valves through selective discontinuation of main valve events
BR112016012779B1 (en) * 2013-12-05 2021-12-07 Jacobs Vehicle Systems, Inc EQUIPMENT INCLUDING COLLAPSE AND EXTENSION MECHANISMS FOR ACTIVATION OF ENGINE VALVES
JP6378988B2 (en) 2014-09-22 2018-08-22 株式会社オティックス Variable valve mechanism for internal combustion engine
JP6652439B2 (en) * 2016-04-11 2020-02-26 株式会社オティックス Variable valve mechanism of internal combustion engine
KR101945286B1 (en) * 2017-08-10 2019-02-08 (주)모토닉 Variable valve lift actuator of engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140290608A1 (en) * 2011-11-06 2014-10-02 Eaton Corporation Latch pin assembly; rocker arm arrangement using latch pin assembly; and assembling methods
US20150275712A1 (en) * 2014-03-31 2015-10-01 Schaeffler Technologies AG & Co. KG Switchable finger follower with normally unlocked coupling element
WO2019012432A1 (en) * 2017-07-10 2019-01-17 Eaton Intelligent Power Limited Switching roller finger follower for valvetrain

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020240479A1 *

Also Published As

Publication number Publication date
WO2020240479A1 (en) 2020-12-03
CN113891986A (en) 2022-01-04
EP3976942A1 (en) 2022-04-06
BR112021022272A2 (en) 2021-12-28
CN113891986B (en) 2024-04-02
KR20210153721A (en) 2021-12-17
JP7302018B2 (en) 2023-07-03
JP2022531009A (en) 2022-07-05

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