[go: up one dir, main page]

GB2625019B - Rocker systems with cylinder deactivation and selective valve lift capabilities - Google Patents

Rocker systems with cylinder deactivation and selective valve lift capabilities Download PDF

Info

Publication number
GB2625019B
GB2625019B GB2403982.8A GB202403982A GB2625019B GB 2625019 B GB2625019 B GB 2625019B GB 202403982 A GB202403982 A GB 202403982A GB 2625019 B GB2625019 B GB 2625019B
Authority
GB
United Kingdom
Prior art keywords
valve lift
cylinder deactivation
selective valve
lift capabilities
rocker systems
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.)
Active
Application number
GB2403982.8A
Other versions
GB2625019A (en
GB202403982D0 (en
Inventor
J Mitchum Gregory
C Cecil Adam
M Barnes David
Robert Bardakjy Scott
P Hassall Nathaniel
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.)
Cummins Inc
Original Assignee
Cummins 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
Application filed by Cummins Inc filed Critical Cummins Inc
Priority to GB2418183.6A priority Critical patent/GB2636927A/en
Publication of GB202403982D0 publication Critical patent/GB202403982D0/en
Publication of GB2625019A publication Critical patent/GB2625019A/en
Application granted granted Critical
Publication of GB2625019B publication Critical patent/GB2625019B/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
    • 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
    • F01L1/047—Camshafts
    • 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
    • F01L1/20—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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/205—Adjusting or compensating clearance by means of shims or the like
    • 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
    • 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
    • F01L1/047—Camshafts
    • F01L2001/0471—Assembled camshafts
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
GB2403982.8A 2021-09-01 2022-09-01 Rocker systems with cylinder deactivation and selective valve lift capabilities Active GB2625019B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2418183.6A GB2636927A (en) 2021-09-01 2022-09-01 Rocker systems with cylinder deactivation and selective valve lift capabilities

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163239539P 2021-09-01 2021-09-01
PCT/US2022/075811 WO2023034896A1 (en) 2021-09-01 2022-09-01 Rocker systems with cylinder deactivation and selective valve lift capabilities

Publications (3)

Publication Number Publication Date
GB202403982D0 GB202403982D0 (en) 2024-05-01
GB2625019A GB2625019A (en) 2024-06-05
GB2625019B true GB2625019B (en) 2025-02-12

Family

ID=83438570

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2418183.6A Pending GB2636927A (en) 2021-09-01 2022-09-01 Rocker systems with cylinder deactivation and selective valve lift capabilities
GB2403982.8A Active GB2625019B (en) 2021-09-01 2022-09-01 Rocker systems with cylinder deactivation and selective valve lift capabilities

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB2418183.6A Pending GB2636927A (en) 2021-09-01 2022-09-01 Rocker systems with cylinder deactivation and selective valve lift capabilities

Country Status (7)

Country Link
US (2) US20240360777A1 (en)
EP (1) EP4396448A1 (en)
JP (1) JP7627388B2 (en)
KR (1) KR20240051244A (en)
CN (1) CN118119765A (en)
GB (2) GB2636927A (en)
WO (1) WO2023034896A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20250107265A (en) * 2022-12-17 2025-07-11 자콥스 비히클 시스템즈, 인코포레이티드. A valve actuation system comprising a rocker assembly sharing an output rocker.
US12018599B1 (en) * 2022-12-17 2024-06-25 Jacobs Vehicle Systems, Inc. Valve actuation system comprising rocker assemblies with one-way coupling therebetween

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120325167A1 (en) * 2010-03-11 2012-12-27 Eiichi Kamiyama Valve drive system of internal combustion engine
DE102017205814A1 (en) * 2017-04-05 2018-10-11 Avl List Gmbh Mechanical valve actuator
WO2019025511A1 (en) * 2017-08-01 2019-02-07 Avl List Gmbh COUPLING DEVICE FOR A VALVE CONTROL DEVICE
US10781729B1 (en) * 2019-05-09 2020-09-22 Schaeffler Technologies AG & Co. KG Switchable rocker arm

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4768467A (en) * 1986-01-23 1988-09-06 Fuji Jukogyo Kabushiki Kaisha Valve operating system for an automotive engine
JPS62203913A (en) * 1986-02-28 1987-09-08 Fuji Heavy Ind Ltd Tappet valve device for automobile engine
JPH036801Y2 (en) * 1986-11-18 1991-02-20
JPH01155012A (en) * 1987-12-12 1989-06-16 Fuji Heavy Ind Ltd Valve system for internal combustion engine
CA1323533C (en) * 1987-12-28 1993-10-26 Toshihiro Oikawa Valve operating system for internal combustion engines
JP2577252B2 (en) * 1988-10-11 1997-01-29 本田技研工業株式会社 Valve train for internal combustion engine
JP2810442B2 (en) * 1989-09-25 1998-10-15 日産自動車株式会社 Engine Valve Actuator
JPH03258904A (en) * 1990-03-07 1991-11-19 Nissan Motor Co Ltd Valve system of engine
JPH06123208A (en) * 1992-10-09 1994-05-06 Nissan Motor Co Ltd Engine valve actuation
JP2762214B2 (en) * 1993-08-19 1998-06-04 本田技研工業株式会社 Valve train for internal combustion engine
US5613469A (en) * 1995-12-26 1997-03-25 Chrysler Corporation Controls apparatus for engine variable valve system
JP4050571B2 (en) * 2002-08-08 2008-02-20 本田技研工業株式会社 Valve operating device for internal combustion engine
JP4137731B2 (en) * 2003-07-28 2008-08-20 本田技研工業株式会社 Valve control device for internal combustion engine
JP4286235B2 (en) * 2005-04-20 2009-06-24 株式会社オティックス Variable valve mechanism for internal combustion engine
JP4476241B2 (en) * 2005-06-20 2010-06-09 日立オートモティブシステムズ株式会社 Valve operating device for internal combustion engine
KR101230883B1 (en) * 2006-05-25 2013-02-07 현대자동차주식회사 Two step various valve lift system
JP5110690B2 (en) * 2006-12-15 2012-12-26 現代自動車株式会社 Rocker arm device for cylinder deactivation
US20080271693A1 (en) * 2007-05-02 2008-11-06 Edelmayer Thomas C Deactivating rocker arm / mechanical lash adjustment system
JP4931758B2 (en) * 2007-10-05 2012-05-16 株式会社オティックス Variable valve mechanism
GB2470025A (en) * 2009-05-06 2010-11-10 Thomas Tsoi Hei Ma Switchable valve actuation system for a selectable 2-stroke/ 4-stroke i.c engine
US8550047B2 (en) * 2009-06-09 2013-10-08 Honda Motor Co., Ltd. Valve control apparatus for internal combustion engine
JP6244473B2 (en) * 2014-10-03 2017-12-06 ヤマハ発動機株式会社 Engine valve gear and rocker arm manufacturing method
JP6326348B2 (en) * 2014-10-21 2018-05-16 株式会社オティックス Variable valve mechanism for internal combustion engine
DE102015015087A1 (en) * 2015-11-20 2017-05-24 Man Truck & Bus Ag Variable valve train with a rocker arm
WO2020118215A1 (en) * 2018-12-06 2020-06-11 Jacobs Vehicle Systems, Inc. Finger follower for lobe switching and single source lost motion
CN110685768B (en) * 2019-10-18 2021-07-20 姬腾飞 Variable valve driving device of engine and engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120325167A1 (en) * 2010-03-11 2012-12-27 Eiichi Kamiyama Valve drive system of internal combustion engine
DE102017205814A1 (en) * 2017-04-05 2018-10-11 Avl List Gmbh Mechanical valve actuator
WO2019025511A1 (en) * 2017-08-01 2019-02-07 Avl List Gmbh COUPLING DEVICE FOR A VALVE CONTROL DEVICE
US10781729B1 (en) * 2019-05-09 2020-09-22 Schaeffler Technologies AG & Co. KG Switchable rocker arm

Also Published As

Publication number Publication date
US20240360777A1 (en) 2024-10-31
GB2636927A (en) 2025-07-02
GB2625019A (en) 2024-06-05
JP7627388B2 (en) 2025-02-05
WO2023034896A1 (en) 2023-03-09
JP2024530796A (en) 2024-08-23
GB202403982D0 (en) 2024-05-01
GB202418183D0 (en) 2025-01-22
CN118119765A (en) 2024-05-31
EP4396448A1 (en) 2024-07-10
KR20240051244A (en) 2024-04-19
US20240401506A1 (en) 2024-12-05

Similar Documents

Publication Publication Date Title
GB2625019B (en) Rocker systems with cylinder deactivation and selective valve lift capabilities
AR118692A1 (en) SEAT VALVE FOR FRACTURING MULTIPLE MATERIALS
MX344756B (en) Rocker arm providing cylinder deactivation.
MX2010003473A (en) Piloted poppet valve.
GB2618032B (en) Electrical gas lift valves and assemblies
EP4249781A4 (en) CONTROL VALVE AND CONTROL VALVE SYSTEM
EP4160061A4 (en) Actuator and reversing valve
GB202401680D0 (en) Valve, method and system
EP4330569C0 (en) Lift type valve arrangements
EP4158229A4 (en) PRESSURE REDUCING AND RELIEF VALVE
EP4372256A4 (en) One-way valve and valve island
EP4010574A4 (en) COMBINED POSITIVE FEED AND CYLINDER DEACTIVATION OPERATION WITH SECONDARY VALVE EVENT
WO2021156008A3 (en) Cylinder deactivation mechanisms for pushrod valve train systems and rocker arms
EP4248069A4 (en) ROCKER ARM CONTROL IN IDLE ENGINE VALVE ACTUATION SYSTEMS
MX2016003472A (en) Hydraulic circuit for valve deactivation.
EP4107416C0 (en) ACTUATOR AND VALVE ARRANGEMENT
EP4119822A4 (en) Manifold electromagnetic valve and valve base
EP4146918A4 (en) VALVE ACTUATION SYSTEM WITH LOST WAVE AND HIGH LIFT TRANSFER COMPONENTS IN A MAIN MOTION LOAD PATH
PL4234824T3 (en) Check valve with venting device
EP4253814A4 (en) ELECTROMAGNETIC VALVE
EP4160027C0 (en) RELIEF VALVE AND BUFFER OIL CYLINDER WITH COMBINED VALVE
EP4446633A4 (en) ELECTROMAGNETIC VALVE
PL4040061T3 (en) Bistable valve
EP4119821A4 (en) Manifold solenoid valve and valve base
PL4179244T3 (en) Valve interconnector, assembly and interconnector system comprising the same