EP3222828A3 - Valve drive for an internal combustion engine - Google Patents

Valve drive for an internal combustion engine Download PDF

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Publication number
EP3222828A3
EP3222828A3 EP17158220.8A EP17158220A EP3222828A3 EP 3222828 A3 EP3222828 A3 EP 3222828A3 EP 17158220 A EP17158220 A EP 17158220A EP 3222828 A3 EP3222828 A3 EP 3222828A3
Authority
EP
European Patent Office
Prior art keywords
cam
camshaft
combustion engine
internal combustion
valve drive
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.)
Withdrawn
Application number
EP17158220.8A
Other languages
German (de)
French (fr)
Other versions
EP3222828A2 (en
Inventor
Patrick Altherr
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP3222828A2 publication Critical patent/EP3222828A2/en
Publication of EP3222828A3 publication Critical patent/EP3222828A3/en
Withdrawn legal-status Critical Current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
    • F01L1/02—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
    • F01L1/02—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
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • 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
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • 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
    • F01L13/0015—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
    • F01L2013/0052—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 with cams provided on an axially slidable sleeve
    • 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
    • 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

Die Erfindung betrifft einen Ventiltrieb (1) für eine Brennkraftmaschine,
- mit einer Nockenwelle (2) und einem Nockenfolger (3),
- mit zwei drehfest und axial im Abstand zueinander auf der Nockenwelle (2) angebrachten ersten Nocken (4a, 4a), die eine identische erste Nockenkontur aufweisen, und mit zwei drehfest und axial im Abstand zueinander auf der Nockenwelle (2) angeordneten zweiten Nocken (4b), die eine identische zweite Nockenkontur (17a, 17b) aufweisen, wobei sich die ersten und zweiten Nocken (4a, 4b) in axialer Richtung auf der Welle (2) abwechseln,
- wobei der Nockenfolger (3) axial verstellbar ist zwischen einer ersten Position, in welcher er mit den ersten Nocken (4a) antriebsverbunden ist, und einer zweiten Position, in welcher er mit den zweiten Nocken (4b) antriebsverbunden ist,
- wobei der Nockenfolger (3) eine mit der Nockenwelle (2) zusammenwirkende mechanische Verstelleinrichtung (7) zur axialen Verstellung des Nockenfolgers (3) zwischen der ersten und der zweiten Position aufweist.

Figure imgaf001
The invention relates to a valve drive (1) for an internal combustion engine,
with a camshaft (2) and a cam follower (3),
- With two rotationally fixed and axially spaced from each other on the camshaft (2) mounted first cam (4a, 4a) having an identical first cam contour, and with two rotatably and axially spaced from each other on the camshaft (2) arranged second cam ( 4b) having an identical second cam contour (17a, 17b), wherein the first and second cams (4a, 4b) alternate in the axial direction on the shaft (2),
- wherein the cam follower (3) is axially adjustable between a first position, in which it is drive-connected to the first cam (4a), and a second position, in which it is drive-connected to the second cam (4b),
- Wherein the cam follower (3) has a with the camshaft (2) cooperating mechanical adjusting device (7) for the axial displacement of the cam follower (3) between the first and the second position.
Figure imgaf001
EP17158220.8A 2016-03-23 2017-02-27 Valve drive for an internal combustion engine Withdrawn EP3222828A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016204889.9A DE102016204889A1 (en) 2016-03-23 2016-03-23 Valve train for an internal combustion engine

Publications (2)

Publication Number Publication Date
EP3222828A2 EP3222828A2 (en) 2017-09-27
EP3222828A3 true EP3222828A3 (en) 2017-10-18

Family

ID=58185439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17158220.8A Withdrawn EP3222828A3 (en) 2016-03-23 2017-02-27 Valve drive for an internal combustion engine

Country Status (5)

Country Link
US (1) US10329963B2 (en)
EP (1) EP3222828A3 (en)
JP (1) JP6793079B2 (en)
CN (1) CN107227983B (en)
DE (1) DE102016204889A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015009047U1 (en) * 2015-08-07 2016-08-03 Mahle International Gmbh Valve train for an internal combustion engine
DE102017205538A1 (en) * 2017-03-31 2018-10-04 Mahle International Gmbh Valve train for an internal combustion engine
DE102017011855A1 (en) * 2017-12-21 2019-06-27 Daimler Ag Valve train for an internal combustion engine, in particular a motor vehicle
DE102018000435B4 (en) * 2018-01-19 2020-12-03 Daimler Ag Valve drive for an internal combustion engine. in particular a motor vehicle
DE102018207457A1 (en) * 2018-05-15 2019-11-21 Mahle International Gmbh Valve train for an internal combustion engine
DE102018207460A1 (en) * 2018-05-15 2019-11-21 Mahle International Gmbh Bearing arrangement of a cam roller of a valve train

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62711U (en) * 1985-06-19 1987-01-06
JPS62184115U (en) * 1986-05-16 1987-11-21
JPH05163971A (en) * 1991-12-10 1993-06-29 Toyota Motor Corp Controller for multiple cylinder internal combustion engine
JPH0674011A (en) * 1992-07-03 1994-03-15 Mazda Motor Corp Valve timing controller of engine
DE102010002495A1 (en) * 2009-03-26 2010-11-04 Honda Motor Co., Ltd. Variable valve actuation mechanism
JP2010249123A (en) * 2009-03-23 2010-11-04 Otics Corp Variable valve train
DE102011004680A1 (en) * 2010-02-26 2011-09-01 Honda Motor Co., Ltd. Kipphebelstruktur

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6085205A (en) * 1983-10-17 1985-05-14 Nissan Motor Co Ltd Valve operation transfer device of internal-combustion engine
DE19945340A1 (en) 1999-09-22 2001-03-29 Schaeffler Waelzlager Ohg Valve gear for different strokes of gas change valve of internal combustion engine; has cam group of at least two cams on camshaft and cam follower with switch slider supported in grooves on camshaft
JP4752949B2 (en) * 2009-05-28 2011-08-17 トヨタ自動車株式会社 Variable valve operating device for internal combustion engine
EP2487341B1 (en) * 2009-10-06 2014-12-10 Yamaha Hatsudoki Kabushiki Kaisha Valve gear for engine
DE102010012471A1 (en) * 2010-03-24 2011-09-29 Schaeffler Technologies Gmbh & Co. Kg Positioning device e.g. double positioning device, for three speed stroke-variable valve train of combustion engine, has current signal lines passed through one of positioning pins whose outer ends are connected with plug pins
DE102010033089A1 (en) * 2010-08-02 2012-02-02 Schaeffler Technologies Gmbh & Co. Kg Variable valve drive system of internal combustion engine, has electric motor that is acted upon helical gear for shifting axle into one of positions of actuator mechanism
DE102012101619A1 (en) * 2012-02-28 2013-08-29 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Electromagnetic positioning device for camshaft adjustment in internal combustion engine, has mechanical latch unit for locking anchor unit when force exerted by anchor unit on coil unit exceeds predetermined value
JP5708591B2 (en) * 2012-05-14 2015-04-30 株式会社デンソー Electromagnetic actuator
JP6059080B2 (en) * 2013-05-16 2017-01-11 株式会社オティックス Variable valve mechanism for internal combustion engine
JP2015169183A (en) * 2014-03-11 2015-09-28 スズキ株式会社 Variable valve device of internal combustion engine
DE102014109243B3 (en) * 2014-07-02 2015-11-12 Thyssenkrupp Presta Teccenter Ag Valve drive with a sliding cam element

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62711U (en) * 1985-06-19 1987-01-06
JPS62184115U (en) * 1986-05-16 1987-11-21
JPH05163971A (en) * 1991-12-10 1993-06-29 Toyota Motor Corp Controller for multiple cylinder internal combustion engine
JPH0674011A (en) * 1992-07-03 1994-03-15 Mazda Motor Corp Valve timing controller of engine
JP2010249123A (en) * 2009-03-23 2010-11-04 Otics Corp Variable valve train
DE102010002495A1 (en) * 2009-03-26 2010-11-04 Honda Motor Co., Ltd. Variable valve actuation mechanism
DE102011004680A1 (en) * 2010-02-26 2011-09-01 Honda Motor Co., Ltd. Kipphebelstruktur

Also Published As

Publication number Publication date
JP6793079B2 (en) 2020-12-02
CN107227983B (en) 2020-11-06
JP2017172587A (en) 2017-09-28
US20170276027A1 (en) 2017-09-28
US10329963B2 (en) 2019-06-25
CN107227983A (en) 2017-10-03
DE102016204889A1 (en) 2017-09-28
EP3222828A2 (en) 2017-09-27

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