BR112021022272A2 - Rocker-follower for lobe switching and single-source lost motion - Google Patents

Rocker-follower for lobe switching and single-source lost motion

Info

Publication number
BR112021022272A2
BR112021022272A2 BR112021022272A BR112021022272A BR112021022272A2 BR 112021022272 A2 BR112021022272 A2 BR 112021022272A2 BR 112021022272 A BR112021022272 A BR 112021022272A BR 112021022272 A BR112021022272 A BR 112021022272A BR 112021022272 A2 BR112021022272 A2 BR 112021022272A2
Authority
BR
Brazil
Prior art keywords
lever
lost motion
follower
rocker
latch
Prior art date
Application number
BR112021022272A
Other languages
Portuguese (pt)
Inventor
S Roberts Gabriel
John Mandell
Robb Janak
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 BR112021022272A2 publication Critical patent/BR112021022272A2/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
    • F01L1/20—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
    • F01L1/12—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
    • F01L13/06—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
    • 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
    • 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
    • F02D13/04—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
    • 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)

Abstract

balancim-seguidor para comu tação de lobe e movimento perdido de fonte única. trata-se de um dedo de comutação que pode operar em dois ou três estados ou posições e cooperar com uma única fonte de movimento para obter métodos de operação de um motor em dois ou três modos correspondentes. os modos podem incluir desativação de cilindro, evento principal ou modos auxiliares, incluindo frenagem por movimento perdido, livc e eevo. um balancim para um comando de válvula de motor utiliza um conjunto de apoio ajustável que elimina o potencial de engate parcial durante a operação. um membro de engate de alavanca ou trava é disposto para moção no corpo de seguidor e interage com uma alavanca para fornecer uma geometria de contato constante. a trava pode apoiar a alavanca em uma ou mais posições precisas ou permitir que a alavanca gire livre da trava para o movimento perdido completo, como em aplicações de desativação de cilindro.rocker-follower for lobe switching and single-source lost motion. it is a switching finger that can operate in two or three states or positions and cooperate with a single source of motion to obtain methods of operating a motor in two or three corresponding modes. Modes can include cylinder deactivation, main event or auxiliary modes including lost motion braking, LIVC and EEVO. A rocker arm for an engine valve control uses an adjustable support assembly that eliminates the potential for partial engagement during operation. a lever or latch engagement member is arranged for movement in the follower body and interacts with a lever to provide a constant contact geometry. the latch may support the lever in one or more precise positions or allow the lever to rotate free of the latch for complete lost motion, as in cylinder deactivation applications.

BR112021022272A 2019-05-28 2020-05-28 Rocker-follower for lobe switching and single-source lost motion BR112021022272A2 (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 (1)

Publication Number Publication Date
BR112021022272A2 true BR112021022272A2 (en) 2021-12-28

Family

ID=73553977

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112021022272A BR112021022272A2 (en) 2019-05-28 2020-05-28 Rocker-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

Family Cites Families (14)

* 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
US9488075B2 (en) * 2011-11-06 2016-11-08 Eaton Corporation Latch pin assembly; rocker arm arrangement using latch pin assembly; and assembling methods
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
US9587530B2 (en) * 2014-03-31 2017-03-07 Schaeffler Technologies AG & Co. KG Switchable finger follower with normally unlocked coupling element
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
EP3940206B1 (en) * 2017-07-10 2023-09-27 Eaton Intelligent Power Limited Switching roller finger follower for valvetrain
KR101945286B1 (en) * 2017-08-10 2019-02-08 (주)모토닉 Variable valve lift actuator of engine

Also Published As

Publication number Publication date
WO2020240479A1 (en) 2020-12-03
CN113891986A (en) 2022-01-04
EP3976942A1 (en) 2022-04-06
CN113891986B (en) 2024-04-02
EP3976942A4 (en) 2023-06-21
KR20210153721A (en) 2021-12-17
JP7302018B2 (en) 2023-07-03
JP2022531009A (en) 2022-07-05

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Legal Events

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B06W Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]