EP2981688A1 - Valve gear system for a combustion engine - Google Patents
Valve gear system for a combustion engineInfo
- Publication number
- EP2981688A1 EP2981688A1 EP14711154.6A EP14711154A EP2981688A1 EP 2981688 A1 EP2981688 A1 EP 2981688A1 EP 14711154 A EP14711154 A EP 14711154A EP 2981688 A1 EP2981688 A1 EP 2981688A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- partial
- drive device
- slide track
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims abstract description 8
- 230000009849 deactivation Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable 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
- 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
- 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
- Part cam width is intended in particular a width of the subregion of
- Guide engagement elements is assigned to one of the slide tracks 20, 21.
- the Ausspursegment the slide track 20 is arranged axially overlapping with the partial cam 14.
- the Ausspursegment that extends only in the circumferential direction is completely in the angular range in which the slide track 20 and the partial cam 14 are arranged overlapping.
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 |
---|---|---|---|
DE102013005803.1A DE102013005803A1 (en) | 2013-04-04 | 2013-04-04 | Valve train device for an internal combustion engine |
PCT/EP2014/000696 WO2014161633A1 (en) | 2013-04-04 | 2014-03-15 | Valve gear system for a combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2981688A1 true EP2981688A1 (en) | 2016-02-10 |
EP2981688B1 EP2981688B1 (en) | 2017-05-10 |
Family
ID=50336259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14711154.6A Active EP2981688B1 (en) | 2013-04-04 | 2014-03-15 | Valve gear system for a combustion engine |
Country Status (6)
Country | Link |
---|---|
US (1) | US9759099B2 (en) |
EP (1) | EP2981688B1 (en) |
JP (1) | JP6077712B2 (en) |
CN (1) | CN105074144B (en) |
DE (1) | DE102013005803A1 (en) |
WO (1) | WO2014161633A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017202723A1 (en) * | 2016-05-24 | 2017-11-30 | Thyssenkrupp Presta Teccenter Ag | Sliding module of a camshaft |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6233385B2 (en) * | 2015-10-29 | 2017-11-22 | トヨタ自動車株式会社 | Variable valve mechanism |
DE102018110705A1 (en) * | 2018-05-04 | 2019-11-07 | Man Truck & Bus Se | Variable valve train |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004037198A1 (en) * | 2004-07-30 | 2006-03-23 | Ina-Schaeffler Kg | Valve gear of an internal combustion engine |
DE102007048915A1 (en) * | 2007-10-12 | 2009-04-16 | Daimler Ag | Valve drive devices |
DE102008028513A1 (en) * | 2008-06-16 | 2009-12-24 | Audi Ag | Valve operation for gas exchange valves of an internal combustion engine with double-supported cam carriers |
DE102008054254A1 (en) * | 2008-10-31 | 2010-05-06 | Schaeffler Kg | Camshaft for a variable-stroke valve drive of an internal combustion engine |
DE102008064340A1 (en) | 2008-12-20 | 2010-06-24 | Audi Ag | Valve train for gas exchange valves of internal-combustion engine, has base camshaft comprising cylindrical shaft sections between adjacent external gearing sections, and cam carriers radially guided on one of cylindrical shaft sections |
DE102009007819A1 (en) * | 2009-02-07 | 2010-08-12 | Schaeffler Technologies Gmbh & Co. Kg | Valve gear of an internal combustion engine |
DE102010013216B4 (en) * | 2009-04-04 | 2022-04-28 | Schaeffler Technologies AG & Co. KG | Valve train of an internal combustion engine |
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 |
WO2011064852A1 (en) * | 2009-11-25 | 2011-06-03 | トヨタ自動車株式会社 | Variable valve device for internal combustion engine |
DE102010011897B4 (en) * | 2010-03-18 | 2016-08-25 | Thyssenkrupp Presta Teccenter Ag | Valve gear with camshaft with axially displaceable cam unit |
DE102010033087A1 (en) * | 2010-08-02 | 2012-02-02 | Schaeffler Technologies Gmbh & Co. Kg | Valve gear of an internal combustion engine |
DE102011011456A1 (en) * | 2011-02-17 | 2012-08-23 | Daimler Ag | Internal combustion engine valve train device |
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 |
-
2013
- 2013-04-04 DE DE102013005803.1A patent/DE102013005803A1/en not_active Withdrawn
-
2014
- 2014-03-15 EP EP14711154.6A patent/EP2981688B1/en active Active
- 2014-03-15 WO PCT/EP2014/000696 patent/WO2014161633A1/en active Application Filing
- 2014-03-15 CN CN201480019570.3A patent/CN105074144B/en active Active
- 2014-03-15 JP JP2016505726A patent/JP6077712B2/en active Active
-
2015
- 2015-09-26 US US14/866,872 patent/US9759099B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2014161633A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017202723A1 (en) * | 2016-05-24 | 2017-11-30 | Thyssenkrupp Presta Teccenter Ag | Sliding module of a camshaft |
US10948066B2 (en) | 2016-05-24 | 2021-03-16 | Thyssenkrupp Presta Teccenter Ag | Sliding module of a camshaft |
Also Published As
Publication number | Publication date |
---|---|
WO2014161633A1 (en) | 2014-10-09 |
US20160017763A1 (en) | 2016-01-21 |
JP6077712B2 (en) | 2017-02-08 |
JP2016514793A (en) | 2016-05-23 |
CN105074144B (en) | 2017-12-01 |
DE102013005803A1 (en) | 2014-10-09 |
CN105074144A (en) | 2015-11-18 |
EP2981688B1 (en) | 2017-05-10 |
US9759099B2 (en) | 2017-09-12 |
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