EP2464835A2 - Variable valve train for internal combustion engines for actuating gas exchange valves - Google Patents
Variable valve train for internal combustion engines for actuating gas exchange valvesInfo
- Publication number
- EP2464835A2 EP2464835A2 EP10760231A EP10760231A EP2464835A2 EP 2464835 A2 EP2464835 A2 EP 2464835A2 EP 10760231 A EP10760231 A EP 10760231A EP 10760231 A EP10760231 A EP 10760231A EP 2464835 A2 EP2464835 A2 EP 2464835A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- switching
- sleeves
- internal combustion
- sleeve
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 22
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 230000008901 benefit Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- 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
- F01L13/0042—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 being 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
-
- 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
Definitions
- variable valve train for realizing a changeover between the different cam profiles 9a, 9b and 9c is as follows.
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
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009037268A DE102009037268B3 (en) | 2009-08-10 | 2009-08-10 | Variable valve drive for internal combustion engines for actuating gas exchange valves |
PCT/DE2010/000932 WO2011018075A2 (en) | 2009-08-10 | 2010-08-03 | Variable valve train for internal combustion engines for actuating gas exchange valves |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2464835A2 true EP2464835A2 (en) | 2012-06-20 |
EP2464835B1 EP2464835B1 (en) | 2013-07-24 |
Family
ID=43530716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10760231.0A Not-in-force EP2464835B1 (en) | 2009-08-10 | 2010-08-03 | Variable valve train for internal combustion engines for actuating gas exchange valves |
Country Status (5)
Country | Link |
---|---|
US (1) | US8746195B2 (en) |
EP (1) | EP2464835B1 (en) |
JP (1) | JP5649239B2 (en) |
DE (1) | DE102009037268B3 (en) |
WO (1) | WO2011018075A2 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008029349A1 (en) * | 2008-06-20 | 2009-12-24 | Daimler Ag | Valve drive device |
DE102008029325A1 (en) * | 2008-06-20 | 2009-12-24 | Daimler Ag | Valve drive device |
DE102009037269B4 (en) | 2009-08-10 | 2011-06-01 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve train for internal combustion engines for actuating gas exchange valves |
DE102009037268B3 (en) | 2009-08-10 | 2011-04-07 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Variable valve drive for internal combustion engines for actuating gas exchange valves |
DE102009037270B4 (en) | 2009-08-10 | 2011-04-07 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve train for internal combustion engines for actuating gas exchange valves |
WO2011064845A1 (en) * | 2009-11-25 | 2011-06-03 | トヨタ自動車株式会社 | Variable valve gear for internal combustion engine |
US8955476B2 (en) | 2009-11-25 | 2015-02-17 | Toyota Jidosha Kabushiki Kaisha | Variable valve operating apparatus for internal combustion engine |
DE102011011457A1 (en) * | 2011-02-17 | 2012-08-23 | Daimler Ag | Internal combustion engine valve train device |
DE102011051480B4 (en) | 2011-06-30 | 2014-11-20 | Thyssenkrupp Presta Teccenter Ag | Camshaft with axially displaceable cam package |
DE102011108728B4 (en) | 2011-07-27 | 2013-02-07 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve train for internal combustion engines for actuating gas exchange valves |
DE102011054218B4 (en) * | 2011-10-06 | 2023-03-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Internal combustion engine and valve train for an internal combustion engine |
DE102011116117B4 (en) * | 2011-10-15 | 2023-11-09 | Mercedes-Benz Group AG | Valve drive device for an internal combustion engine |
DE102013005803A1 (en) | 2013-04-04 | 2014-10-09 | Daimler Ag | Valve train device for an internal combustion engine |
US9605603B2 (en) * | 2013-04-05 | 2017-03-28 | Ford Global Technologies, Llc | Position detection for lobe switching camshaft system |
US8863714B1 (en) | 2013-08-15 | 2014-10-21 | GM Global Technology Operations LLC | Camshaft assembly |
AT517816B1 (en) * | 2015-09-18 | 2019-10-15 | Avl List Gmbh | VARIABLE VALVE CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINES |
WO2017079383A1 (en) | 2015-11-06 | 2017-05-11 | Borgwarner Inc. | Valve operating system providing variable valve lift and/or variable valve timing |
US20180094554A1 (en) * | 2016-10-05 | 2018-04-05 | GM Global Technology Operations LLC | Variable camshaft |
DE102017011855A1 (en) * | 2017-12-21 | 2019-06-27 | Daimler Ag | Valve train for an internal combustion engine, in particular a motor vehicle |
CN112096474B (en) * | 2020-08-14 | 2022-02-01 | 东风汽车集团有限公司 | Variable wrap angle combined camshaft, engine and automobile |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3481314A (en) * | 1967-08-29 | 1969-12-02 | Georges G Lecrenn | Means for optimizing the performance of internal combustion engines |
DE3934848A1 (en) * | 1989-10-19 | 1991-04-25 | Ingelheim Peter Graf Von | Camshaft with single control for several valve timings - has hollow shaft with peripheral slits firmly coupled to drive wheel |
DE4230877A1 (en) * | 1991-09-30 | 1993-04-01 | Volkswagen Ag | Control for lift valve with two cams - comprises cam block containing two cams which is axially displaceable but non rotatable peripherally on camshaft |
AT408127B (en) | 1992-07-13 | 2001-09-25 | Avl Verbrennungskraft Messtech | Internal combustion engine with at least one camshaft that can be axially displaced by an adjusting device |
DE4331977A1 (en) | 1993-09-21 | 1995-03-23 | Porsche Ag | Variable valve timing |
DE4416505A1 (en) | 1994-05-10 | 1995-11-16 | Bayerische Motoren Werke Ag | Cam shaft with turnable cams |
DE19520117C2 (en) * | 1995-06-01 | 2002-04-11 | Porsche Ag | Valve train of an internal combustion engine |
JPH10280930A (en) * | 1997-04-09 | 1998-10-20 | Toyota Motor Corp | Valve system for internal combustion engine with multiple cylinder |
DE19825307A1 (en) | 1998-06-05 | 1999-12-09 | Bayerische Motoren Werke Ag | Valve control for an internal combustion engine |
JP2002004823A (en) * | 2000-06-23 | 2002-01-09 | Honda Motor Co Ltd | Valve system of internal combustion engine |
DE10054623A1 (en) * | 2000-11-03 | 2002-05-08 | Audi Ag | Device for changeover of cam pack on camshaft to operate gas exchange valves has actuating element in form of pin movable radially outwards and in extended state interacting with slide tracks in guide section |
WO2002081872A1 (en) * | 2001-04-05 | 2002-10-17 | Stephen William Mitchell | Variable valve timing system |
JP4100054B2 (en) * | 2002-06-20 | 2008-06-11 | トヨタ自動車株式会社 | Variable valve operating device for internal combustion engine |
DE102004011586A1 (en) * | 2003-03-21 | 2004-10-07 | Audi Ag | Valve gear for internal combustion engine has facility whereby in first and second axial positions of cam carrier first and second stop faces fixed on cam carrier bear against respective first and second stop faces fixed on cylinder head |
DE502004008185D1 (en) * | 2003-07-19 | 2008-11-20 | Porsche Ag | Valve train for an internal combustion engine |
US7198015B2 (en) * | 2005-05-24 | 2007-04-03 | George Wayne Mobley | Variable valve timing system |
DE102007016977A1 (en) * | 2007-04-10 | 2008-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Cam-operated valve stroke function adjusting device for use during operating and/or loading condition of internal combustion engine, has adjusting unit partially arranged within hollow shaft, and sleeve movable within shaft |
DE102007027979B4 (en) * | 2007-06-19 | 2015-07-23 | Audi Ag | Valve train for gas exchange valves of an internal combustion engine with camshaft tunnel bearings |
DE102007037747B4 (en) | 2007-08-10 | 2022-06-15 | Mercedes-Benz Group AG | Internal combustion engine valve train switching device |
DE102007054978B4 (en) * | 2007-11-17 | 2023-12-14 | Mercedes-Benz Group AG | Valve drive device |
DE102009017242B4 (en) | 2009-04-09 | 2011-09-22 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve train for internal combustion engines for actuating gas exchange valves |
DE102009034990A1 (en) * | 2009-07-28 | 2011-02-03 | Daimler Ag | Valve drive device |
DE102009037268B3 (en) | 2009-08-10 | 2011-04-07 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Variable valve drive for internal combustion engines for actuating gas exchange valves |
DE102009037270B4 (en) | 2009-08-10 | 2011-04-07 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve train for internal combustion engines for actuating gas exchange valves |
DE102009037269B4 (en) * | 2009-08-10 | 2011-06-01 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve train for internal combustion engines for actuating gas exchange valves |
DE102009055868A1 (en) * | 2009-11-26 | 2011-06-01 | Neumayer Tekfor Holding Gmbh | camshaft |
DE102010011897B4 (en) * | 2010-03-18 | 2016-08-25 | Thyssenkrupp Presta Teccenter Ag | Valve gear with camshaft with axially displaceable cam unit |
DE102011108728B4 (en) * | 2011-07-27 | 2013-02-07 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Valve train for internal combustion engines for actuating gas exchange valves |
-
2009
- 2009-08-10 DE DE102009037268A patent/DE102009037268B3/en not_active Expired - Fee Related
-
2010
- 2010-08-03 WO PCT/DE2010/000932 patent/WO2011018075A2/en active Application Filing
- 2010-08-03 EP EP10760231.0A patent/EP2464835B1/en not_active Not-in-force
- 2010-08-03 US US13/389,462 patent/US8746195B2/en not_active Expired - Fee Related
- 2010-08-03 JP JP2012524112A patent/JP5649239B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2011018075A2 * |
Also Published As
Publication number | Publication date |
---|---|
US20120138001A1 (en) | 2012-06-07 |
WO2011018075A2 (en) | 2011-02-17 |
US8746195B2 (en) | 2014-06-10 |
JP5649239B2 (en) | 2015-01-07 |
EP2464835B1 (en) | 2013-07-24 |
WO2011018075A3 (en) | 2011-04-21 |
JP2013501874A (en) | 2013-01-17 |
DE102009037268B3 (en) | 2011-04-07 |
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Inventor name: ARNOLD, THOMAS Inventor name: WERLER, ANDREAS Inventor name: WUTZLER, JOERG Inventor name: NEUKIRCHNER, HEIKO |
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