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WO2018217536A3 - Magnetic actuator for switching roller finger followers - Google Patents

Magnetic actuator for switching roller finger followers Download PDF

Info

Publication number
WO2018217536A3
WO2018217536A3 PCT/US2018/033177 US2018033177W WO2018217536A3 WO 2018217536 A3 WO2018217536 A3 WO 2018217536A3 US 2018033177 W US2018033177 W US 2018033177W WO 2018217536 A3 WO2018217536 A3 WO 2018217536A3
Authority
WO
WIPO (PCT)
Prior art keywords
rocker arm
actuator
permanent magnets
camshaft
magnetic actuator
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.)
Ceased
Application number
PCT/US2018/033177
Other languages
French (fr)
Other versions
WO2018217536A2 (en
Inventor
Dale Arden Stretch
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 Intelligent Power Ltd
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 Intelligent Power Ltd filed Critical Eaton Intelligent Power Ltd
Publication of WO2018217536A2 publication Critical patent/WO2018217536A2/en
Publication of WO2018217536A3 publication Critical patent/WO2018217536A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • 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
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L2013/10—Auxiliary actuators for variable valve timing
    • F01L2013/101—Electromagnets
    • 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
    • F01L2301/00—Using particular materials
    • 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
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F01L2303/01—Tools for producing, mounting or adjusting, e.g. some part of the distribution
    • 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

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)

Abstract

A valvetrain suitable for an internal combustion engine that includes a combustion chamber, a moveable valve having a seat formed within the combustion chamber, and a camshaft includes a latch assembly and a rocker arm assembly. The rocker arm assembly include a rocker arm and a cam follower configured to engage a cam on the camshaft as the camshaft rotates. The latch assembly includes a latch pin mounted on the rocker arm and an actuator mounted on a component distinct from the rocker arm. The actuator includes one or more permanent magnets. The actuator is operable to move the one or more permanent magnets to induce the latch pin to translate from a first position to a second position through magnetic forces provided by the one or more permanent magnets.
PCT/US2018/033177 2017-05-23 2018-05-17 Magnetic actuator for switching roller finger followers Ceased WO2018217536A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762510060P 2017-05-23 2017-05-23
US62/510,060 2017-05-23

Publications (2)

Publication Number Publication Date
WO2018217536A2 WO2018217536A2 (en) 2018-11-29
WO2018217536A3 true WO2018217536A3 (en) 2019-01-03

Family

ID=64396872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/033177 Ceased WO2018217536A2 (en) 2017-05-23 2018-05-17 Magnetic actuator for switching roller finger followers

Country Status (1)

Country Link
WO (1) WO2018217536A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021144148A1 (en) 2020-01-16 2021-07-22 Eaton Intelligent Power Limited Latch assembly and compact rocker arm assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6318318B1 (en) * 2001-05-15 2001-11-20 Ford Global Technologies, Inc. Rocker arm assembly
US6499451B1 (en) * 2001-12-17 2002-12-31 Delphi Technologies, Inc. Control system for variable activation of intake valves in an internal combustion engine
US6752107B2 (en) * 2000-12-07 2004-06-22 Meta Motoren-Und Energie-Technik Gmbh Apparatus for switching the operation of a change valve of a combustion engine
KR20130133545A (en) * 2012-05-29 2013-12-09 현대자동차주식회사 Engine that is equipped with variable valve device
US20140083380A1 (en) * 2012-09-21 2014-03-27 Otics Corporation Variable valve mechanism of internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6752107B2 (en) * 2000-12-07 2004-06-22 Meta Motoren-Und Energie-Technik Gmbh Apparatus for switching the operation of a change valve of a combustion engine
US6318318B1 (en) * 2001-05-15 2001-11-20 Ford Global Technologies, Inc. Rocker arm assembly
US6499451B1 (en) * 2001-12-17 2002-12-31 Delphi Technologies, Inc. Control system for variable activation of intake valves in an internal combustion engine
KR20130133545A (en) * 2012-05-29 2013-12-09 현대자동차주식회사 Engine that is equipped with variable valve device
US20140083380A1 (en) * 2012-09-21 2014-03-27 Otics Corporation Variable valve mechanism of internal combustion engine

Also Published As

Publication number Publication date
WO2018217536A2 (en) 2018-11-29

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