WO2013001234A3 - Device for actuating a valve of an internal combustion engine - Google Patents

Device for actuating a valve of an internal combustion engine Download PDF

Info

Publication number
WO2013001234A3
WO2013001234A3 PCT/FR2012/051479 FR2012051479W WO2013001234A3 WO 2013001234 A3 WO2013001234 A3 WO 2013001234A3 FR 2012051479 W FR2012051479 W FR 2012051479W WO 2013001234 A3 WO2013001234 A3 WO 2013001234A3
Authority
WO
WIPO (PCT)
Prior art keywords
tappet
valve
actuating
actuator
combustion engine
Prior art date
Application number
PCT/FR2012/051479
Other languages
French (fr)
Other versions
WO2013001234A2 (en
Inventor
Nicolas Gelez
Julien Hobraiche
Gabriel KOPP
Original Assignee
Valeo Systemes De Controle Moteur
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 Valeo Systemes De Controle Moteur filed Critical Valeo Systemes De Controle Moteur
Priority to JP2014517890A priority Critical patent/JP2014518352A/en
Priority to US14/128,813 priority patent/US20140165936A1/en
Priority to EP12738538.3A priority patent/EP2723997A2/en
Publication of WO2013001234A2 publication Critical patent/WO2013001234A2/en
Publication of WO2013001234A3 publication Critical patent/WO2013001234A3/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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/06—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like the cams, or the like, rotating at a higher speed than that corresponding to the valve cycle, e.g. operating fourstroke engine valves directly from crankshaft
    • 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
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead 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
    • F01L1/20—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
    • F01L2820/00—Details on specific features characterising valve gear arrangements
    • F01L2820/03—Auxiliary actuators
    • F01L2820/031—Electromagnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

The invention relates to a cam actuator (2) for actuating at least one valve (3) slidably mounted in a mounting (1), the device comprising a tappet (8) which is to be mounted on a free end of a stem (3a) of the valve and which is mobile relative to the mounting (1); and a resilient return means (9) for the tappet, which to urge the tappet (8) against the cam (2), characterised in that the device comprises an electromagnetic locking means including an electromagnetic actuator (22) having a coil (24), preferably outside the tappet (8), and at least one pin (12) subjected to the magnetic field of the actuator (22), such that supplying power to the coil (24) causes the selective movement of the pin (12) between a locked position, in which the tappet (8) is translatably linked to the valve (3), and an unlocked position, in which the tappet (8) freely slides on the stem (3a) of the valve.
PCT/FR2012/051479 2011-06-27 2012-06-27 Device for actuating a valve of an internal combustion engine WO2013001234A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2014517890A JP2014518352A (en) 2011-06-27 2012-06-27 Device for operating a valve of an internal combustion engine
US14/128,813 US20140165936A1 (en) 2011-06-27 2012-06-27 Device for actuating a valve of an internal combustion engine
EP12738538.3A EP2723997A2 (en) 2011-06-27 2012-06-27 Device for actuating a valve of an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1155718 2011-06-27
FR1155718A FR2976971B1 (en) 2011-06-27 2011-06-27 VALVE ACTUATING DEVICE OF AN INTERNAL COMBUSTION ENGINE

Publications (2)

Publication Number Publication Date
WO2013001234A2 WO2013001234A2 (en) 2013-01-03
WO2013001234A3 true WO2013001234A3 (en) 2013-03-28

Family

ID=46579199

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2012/051479 WO2013001234A2 (en) 2011-06-27 2012-06-27 Device for actuating a valve of an internal combustion engine

Country Status (5)

Country Link
US (1) US20140165936A1 (en)
EP (1) EP2723997A2 (en)
JP (1) JP2014518352A (en)
FR (1) FR2976971B1 (en)
WO (1) WO2013001234A2 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2952037A1 (en) * 1979-12-22 1981-06-25 Audi Nsu Auto Union Ag, 7107 Neckarsulm Automobile engine with cylinders selectively cut-out at low load - uses engine oil pressure to control sliding plate blocking valve stem and has electromagnets attached to plungers in switch circuit
EP0338729A1 (en) * 1988-04-13 1989-10-25 Honda Giken Kogyo Kabushiki Kaisha Method for controlling valve operation in an internal combustion engine
EP0342007A1 (en) * 1988-05-10 1989-11-15 Honda Giken Kogyo Kabushiki Kaisha Device for switching valve operation modes in an internal combustion engine
WO1993018284A1 (en) * 1992-03-06 1993-09-16 F. Porsche Aktiengesellschaft Cylinder head for an internal combustion engine
US5351662A (en) * 1990-02-16 1994-10-04 Group Lotus Plc Valve control means
US6076491A (en) * 1994-05-03 2000-06-20 Lotus Cars Limited Valve control mechanism
DE10216815A1 (en) * 2001-09-10 2003-04-03 Mitsubishi Electric Corp Variable valve lift device for direct drive-style valve driving system, has tappet case in contact with cams that are driven rotationally due to internal combustion engine and reciprocally due to rotation of cam
DE102007047169A1 (en) * 2007-10-02 2009-04-09 Aft Atlas Fahrzeugtechnik Gmbh Variable mechanical valve controller for adjusting gas exchanging valve at reciprocating piston internal-combustion engine, has output elements and/or pivoted lever detachably connected with transmission shaft
DE102008014833A1 (en) * 2008-03-18 2009-09-24 Schaeffler Kg Detachable mechanical bucket tappet for valve gear of internal combustion engine, has piston moved in coupling direction by force of pressure spring that is operated at outer end surface, and moved in uncoupled direction by hydraulic unit
DE102008029331A1 (en) * 2008-06-20 2009-12-24 Schaeffler Kg Gas exchange valve deactivating device for internal-combustion engine, has transferring element i.e. bucket tappet, actuated by cam of cam shaft and comprising opening for passage of valve shank or retaining cap

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19528505A1 (en) 1995-08-03 1997-02-06 Schaeffler Waelzlager Kg Device for selectively actuating at least one gas exchange valve
KR100820701B1 (en) * 2006-12-14 2008-04-11 현대자동차주식회사 Variable valve lift apparatus

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2952037A1 (en) * 1979-12-22 1981-06-25 Audi Nsu Auto Union Ag, 7107 Neckarsulm Automobile engine with cylinders selectively cut-out at low load - uses engine oil pressure to control sliding plate blocking valve stem and has electromagnets attached to plungers in switch circuit
EP0338729A1 (en) * 1988-04-13 1989-10-25 Honda Giken Kogyo Kabushiki Kaisha Method for controlling valve operation in an internal combustion engine
EP0342007A1 (en) * 1988-05-10 1989-11-15 Honda Giken Kogyo Kabushiki Kaisha Device for switching valve operation modes in an internal combustion engine
US5351662A (en) * 1990-02-16 1994-10-04 Group Lotus Plc Valve control means
WO1993018284A1 (en) * 1992-03-06 1993-09-16 F. Porsche Aktiengesellschaft Cylinder head for an internal combustion engine
US6076491A (en) * 1994-05-03 2000-06-20 Lotus Cars Limited Valve control mechanism
DE10216815A1 (en) * 2001-09-10 2003-04-03 Mitsubishi Electric Corp Variable valve lift device for direct drive-style valve driving system, has tappet case in contact with cams that are driven rotationally due to internal combustion engine and reciprocally due to rotation of cam
DE102007047169A1 (en) * 2007-10-02 2009-04-09 Aft Atlas Fahrzeugtechnik Gmbh Variable mechanical valve controller for adjusting gas exchanging valve at reciprocating piston internal-combustion engine, has output elements and/or pivoted lever detachably connected with transmission shaft
DE102008014833A1 (en) * 2008-03-18 2009-09-24 Schaeffler Kg Detachable mechanical bucket tappet for valve gear of internal combustion engine, has piston moved in coupling direction by force of pressure spring that is operated at outer end surface, and moved in uncoupled direction by hydraulic unit
DE102008029331A1 (en) * 2008-06-20 2009-12-24 Schaeffler Kg Gas exchange valve deactivating device for internal-combustion engine, has transferring element i.e. bucket tappet, actuated by cam of cam shaft and comprising opening for passage of valve shank or retaining cap

Also Published As

Publication number Publication date
WO2013001234A2 (en) 2013-01-03
JP2014518352A (en) 2014-07-28
US20140165936A1 (en) 2014-06-19
EP2723997A2 (en) 2014-04-30
FR2976971B1 (en) 2015-01-16
FR2976971A1 (en) 2012-12-28

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