WO2011042391A1 - Nockenwellenanordnung - Google Patents
Nockenwellenanordnung Download PDFInfo
- Publication number
- WO2011042391A1 WO2011042391A1 PCT/EP2010/064751 EP2010064751W WO2011042391A1 WO 2011042391 A1 WO2011042391 A1 WO 2011042391A1 EP 2010064751 W EP2010064751 W EP 2010064751W WO 2011042391 A1 WO2011042391 A1 WO 2011042391A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- camshaft
- hollow shaft
- shaft
- cover element
- stator
- Prior art date
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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
-
- 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
-
- 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
-
- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
-
- 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
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/34413—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using composite camshafts, e.g. with cams being able to move relative to the camshaft
-
- 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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped 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
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
- F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49293—Camshaft making
Definitions
- the invention relates to a camshaft arrangement for changing the relative angular position of at least one first cam of a camshaft relative to a second cam of the camshaft, wherein the arrangement comprises an angle adjusting, which has a stator and a rotatable relative thereto arranged rotor, the rotor rotatably with a Shaft is connected, wherein the stator is rotatably connected to a hollow shaft, wherein the shaft and the hollow shaft are arranged concentrically to each other, wherein the at least one first cam is rotatably connected to the shaft and wherein the at least one second cam is non-rotatably connected to the hollow shaft ,
- Camshaft arrangements of this type are known as "cam-in-cam” systems, with which at least two cams of the camshaft-usually a number of respective cams-can be rotated relative to one another on the camshaft. to change the timing of the gas exchange valves of an internal combustion engine.
- camshaft systems are described, for example, in EP 1 945 918 B1, in GB 2 423 565 A and in WO 2009/098497 A1.
- connection of the hollow shaft with the stator in generic adjustment devices is a weak point, which can lead to a malfunction of the camshaft assembly in case of failure.
- the present invention is based on the A u fg abe, a camshaft assembly of the type mentioned in such a way that the connection between the stator and the hollow shaft is improved.
- a radially space-saving solution should be sought, since the available space is very limited.
- the solution to this problem by the invention is characterized in that the rotationally fixed connection between the stator and the hollow shaft via a fixedly connected to the stator cover element, wherein the cover member has a bore for receiving a cylindrical portion of the hollow shaft and wherein in the cylindrical contact surface between the cover member and the hollow shaft, a frictional and / or material connection is present.
- the bore is preferably arranged concentrically to the shaft and hollow shaft.
- the cover element is usually bolted to the stator.
- the non-positive connection can be produced by a press fit or a shrink fit between the bore and the cylindrical section.
- a particularly preferred embodiment provides that the cover element has a largely constant thickness in the axial direction of the shaft and hollow shaft, wherein the cover element is widened in its thickness in the region of the bore, to increase the length of the cylindrical contact surface.
- the cover element preferably has a flat end face, with the extended thickness then extending into the interior of the arrangement.
- the cohesive connection can be made by welding the cover element and the hollow shaft.
- the welding may be a laser beam or electron beam welding.
- the cohesive connection can also be produced by soldering the cover element and the hollow shaft. This is especially intended for a hard soldering. It is also possible that the cohesive connection is made by a bonding of the cover element and the hollow shaft.
- cover element and the hollow shaft can also be present both a non-positive and a cohesive connection.
- the shaft is preferably connected to the rotor by a screw connection, wherein the screw connection preferably comprises a coaxial with the shaft arranged central screw.
- the angle adjustment device is preferably designed as a hydraulic adjusting device.
- Fig. 1 shows the radial section through a camshaft arrangement of a
- Fig. 2 shows schematically the time course of the opening and closing of
- FIG. 3 schematically shows the time course of the opening and closing of the valves according to a second possible manner of operation
- Fig. 4 shows schematically the time course of the opening and closing of the
- Fig. 5 shows schematically the time course of the opening and closing of the
- a camshaft assembly 1 comprising a camshaft 2 having cams (not shown) cooperating in a known manner with gas exchange valves to control gas exchange in an internal combustion engine.
- An arrangement of this kind serves to vary the valve timing of an internal combustion engine. In most cases, hydraulically actuated adjusters are used.
- a first driving strategy the control of an intake valve is changed relative to an exhaust valve, or vice versa, which is mostly useful in SOHC (Single Overhead Camshaft) or OHV (Overhead Valves) engines. This allows the change of the intake phase or the exhaust phase with a single camshaft.
- SOHC Single Overhead Camshaft
- OHV Overhead Valves
- a second driving strategy is to change the timing of one set of intake valves relative to another set of single intake camshaft valves. This can be used when two or possibly three intake valves per cylinder are provided and it is desired to change the timing of one of the intake valves relative to the others on a cylinder.
- the timing of one set of exhaust valves is changed relative to another set of valves with a single exhaust camshaft. This can be used when two or possibly three exhaust valves per cylinder are provided, where it is desired to vary the timing of one exhaust valve relative to the other on a cylinder.
- the camshaft cams for example, the intake and exhaust valves of the internal combustion engine are arranged.
- the angle adjustment device 3 By means of the angle adjustment device 3, it is possible to rotate part of the cams relative to another part of the cams.
- the camshaft 2 consists of two coaxially arranged shaft elements, namely a shaft 6 and a hollow shaft 7, in which the shaft 6 is arranged coaxially.
- the located on the camshaft 2 cams are rotatably connected either to the shaft 6 or with the hollow shaft 7. Details of this can be found in EP 1 945 918 B1.
- the angle adjustment device 3 has a stator 4 and a rotor 5, which can be rotated relative to one another - in the exemplary embodiment by means of hydraulic actuation - by a defined angle.
- This generation of this twisting function is known in the prior art, reference being made by way of example to DE 103 44 816 A1.
- an impeller is present in which wings are formed or arranged in the wing.
- the wings are located in hydraulic chambers, which are incorporated in a rotor. By appropriate action on the respective side of the hydraulic chambers with hydraulic fluid, an adjustment of the rotor relative to the stator can take place.
- the rotor 6 is rotatably connected to the shaft 6, for which purpose a central screw 13 is used. By the central screw 13 a fixed radial and axial connection between the rotor 5 and shaft 6 is ensured.
- the stator 4 has a cover element 8, which is connected by means of screws 14 to the stator 4. With the lid member 8, the hollow shaft 7 is rotatably connected. The rotationally fixed connection between the stator 4 and the hollow shaft 7 takes place via the cover element 8 connected to the stator 4 in such a manner that the cover element 8 has a bore 9 for receiving a cylindrical portion 10 of the hollow shaft 7. It is provided that in the cylindrical contact surface 1 1 between the cover member 8 and the hollow shaft 7 is a non-positive and / or a cohesive connection.
- the hollow shaft 7 is seated with its cylindrical portion 10 by means of a press fit in the bore 9.
- This interference fit can be produced by axially pressing the cylindrical section 10 into the bore 9 and / or also by heat shrinking.
- the interference fit eliminates all axial and radial play between cover element 8 and hollow shaft 7.
- the cover element 8 is provided in the region of the bore 9 with a widening 15 extending in the axial direction. With this a sufficient contact length is ensured, so that the connection by means of press fit between the cover member 8 and the hollow shaft 7 is sufficiently strong. Accordingly, the substantially homogeneous thickness d of the cover element 8 is increased over its radial extent in the region of the bore 9 as a result of broadening 15 to the value D, preferably at least 1.5 times, more preferably at least 2 times, the value of d is.
- the outer end face 12 of the lid member 8 is formed largely flat, d. H. the widening 15 extends into the interior of the angle adjustment device 3.
- the angle adjustment device 3 On the side opposite the cover element 8, the angle adjustment device 3 is closed by a further cover element 16.
- the drive the Winkelverstellvorraum 3 and thus the camshaft 2 takes place in a known manner via a pinion 17 via a driven by the crankshaft of the internal combustion engine (not shown) chain.
- the pinion 17 is formed here as a separate component. However, it can also be designed integrated into the stator 4.
- FIGS. 2 to 5 The possible operation of an internal combustion engine through the camshaft arrangement is illustrated in FIGS. 2 to 5.
- the figures each show the course of the opening path that a cam exerts on a valve over time.
- the shaft 6 actuates the exhaust valves, and the control of the exhaust valves relative to the crankshaft of the engine may be adjusted.
- the actuation of the outlet valves can be seen in the left half of the figure in Fig. 2, while in the right half of the figure, the operation of the intake valves can be seen.
- the dashed curves for the exhaust valves and the displacement in the direction of the double arrow indicate that the adjustment of the angle adjustment device 3 is used for this purpose.
- Fig. 3 is for the same construction of the engine as in Fig. 2 to see what the course looks like when the shaft 6 actuates the intake valves. Again, the actuation of the exhaust valves can be seen in the left half of the picture and those of the inlet valves in the right half of the picture. Here, the phasing of the intake valves can now be varied relative to the crankshaft, again recognizable by the dashed curves and the double arrow.
- the optimized control d. H. the opening and closing, the intake valves depending on the speed and the load state of the internal combustion engine.
- the volumetric efficiency can be improved, resulting in improved engine torque development, as well as higher fuel efficiency and engine runnability.
- the duration of the opening of the exhaust valves can be changed, so that the opening time of the exhaust valves can be optimized.
- An early opening of the exhaust valves before bottom dead center (UT) allows a quick warm-up of the internal combustion engine, which reduces cold-start emissions.
- FIG. 5 An analogous solution to FIG. 4 is sketched in FIG. 5. Again, a DOHC engine is used. Here, the shaft 6 actuates one or more intake valves per cylinder, while the remaining intake valves are actuated by the hollow shaft 7.
- the solid lines in the right half of FIG. 5 in turn shows the control of one or more inlet valves with fixed control times, while the dashed lines and the double arrow indicate that the rest of the inlet valves can be temporally changed in their control by means of the angle adjustment device 3 ,
- the duration of the opening of the inlet valves can be changed here.
- the closing time of the intake valves can be optimized. This can be used to drive a Late Intake Valve Closing (LIVC) strategy.
- LIVC Late Intake Valve Closing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127008705A KR101650220B1 (ko) | 2009-10-05 | 2010-10-04 | 캠 샤프트 장치 |
CN201080044773.XA CN102549240B (zh) | 2009-10-05 | 2010-10-04 | 凸轮轴系统 |
BR112012007632A BR112012007632A2 (pt) | 2009-10-05 | 2010-10-04 | disposição de eixo de cames |
US13/500,335 US8627795B2 (en) | 2009-10-05 | 2010-10-04 | Camshaft arrangement |
EP10766253.8A EP2486248B1 (de) | 2009-10-05 | 2010-10-04 | Nockenwellenanordnung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24861609P | 2009-10-05 | 2009-10-05 | |
US61/248,616 | 2009-10-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011042391A1 true WO2011042391A1 (de) | 2011-04-14 |
Family
ID=43662139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/064751 WO2011042391A1 (de) | 2009-10-05 | 2010-10-04 | Nockenwellenanordnung |
Country Status (6)
Country | Link |
---|---|
US (1) | US8627795B2 (de) |
EP (1) | EP2486248B1 (de) |
KR (1) | KR101650220B1 (de) |
CN (1) | CN102549240B (de) |
BR (1) | BR112012007632A2 (de) |
WO (1) | WO2011042391A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013017303A1 (de) * | 2011-08-04 | 2013-02-07 | Schaeffler Technologies AG & Co. KG | Vormontage eines nockenwellenverstellers |
WO2014071927A1 (de) * | 2012-11-12 | 2014-05-15 | Schaeffler Technologies AG & Co. KG | Nockenwellenverstelleinrichtung |
DE102012024955A1 (de) | 2012-12-20 | 2014-06-26 | Volkswagen Aktiengesellschaft | Rotor-Stator-Einheit, Welle-in-Welle-System mit einer solchen Rotor-Stator-Einheit sowie Verfahren zur Montage einer Rotor-Stator-Einheit auf einem Welle-in-Welle-System |
CN104246153A (zh) * | 2012-05-18 | 2014-12-24 | 舍弗勒技术有限两合公司 | 凸轮轴单元 |
DE102013215553A1 (de) * | 2013-08-07 | 2015-02-12 | Mahle International Gmbh | Verfahren zur Montage einer verstellbaren Nockenwelle |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4883330B2 (ja) * | 2009-11-25 | 2012-02-22 | 三菱自動車工業株式会社 | 内燃機関の可変動弁装置 |
CN102852582B (zh) * | 2012-09-06 | 2016-03-02 | 浙江吉利汽车研究院有限公司杭州分公司 | 可变气门正时方法 |
US9506379B2 (en) * | 2013-03-11 | 2016-11-29 | Schaeffler Technologies AG & Co. KG | Concentric camshaft phaser |
DE102015110679B4 (de) * | 2015-07-02 | 2021-04-01 | Thyssenkrupp Ag | Verfahren zum Ausgleich von Toleranzen zwischen einem Stator und einem Rotor eines Phasenstellers für eine verstellbare Nockenwelle |
WO2019104491A1 (zh) * | 2017-11-28 | 2019-06-06 | 舍弗勒技术股份两合公司 | 用于凸轮轴相位器的盖元件和凸轮轴相位器 |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19757504A1 (de) * | 1997-12-23 | 1999-07-01 | Daimler Chrysler Ag | Gebaute Nockenwelle für eine Brennkraftmaschine |
GB2369175A (en) * | 2000-11-18 | 2002-05-22 | Mechadyne Plc | Variable phase coupling |
DE10344816A1 (de) | 2002-09-26 | 2004-05-06 | Aisin Seiki K.K., Kariya | Ventiltaktungssteuerungs- und Regelungseinrichtung |
US20050226736A1 (en) * | 2004-04-13 | 2005-10-13 | Lancefield Timothy M | Variable phase drive mechanism |
GB2423565A (en) | 2005-02-23 | 2006-08-30 | Mechadyne Plc | Inner camshaft of SCP assembly receives drive via sleeve on outer tube |
GB2424258A (en) * | 2005-03-18 | 2006-09-20 | Mechadyne Plc | Camshaft to phaser coupling |
GB2432645A (en) * | 2005-11-28 | 2007-05-30 | Mechadyne Plc | Variable phase drive coupling |
EP1803904A2 (de) * | 2005-12-21 | 2007-07-04 | Mahle International GmbH | Nockenwelle |
GB2433974A (en) * | 2006-01-04 | 2007-07-11 | Mechadyne Plc | Mounting of a SCP (single cam phaser) camshaft on an engine |
WO2008028902A1 (de) * | 2006-09-07 | 2008-03-13 | Mahle International Gmbh | Verstellbare nockenwelle |
EP1945918B1 (de) | 2005-11-02 | 2009-02-25 | Mechadyne plc | Nockenwellenanordnung |
WO2009098497A1 (en) | 2008-02-05 | 2009-08-13 | Mechadyne Plc | Oil feed arrangement for an scp camshaft |
DE102008019746A1 (de) * | 2008-04-19 | 2009-10-22 | Schaeffler Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102004054301A1 (de) * | 2004-11-09 | 2006-05-11 | Mahle Ventiltrieb Gmbh | Nockenwelle für insbesondere Kraftfahrzeugmotoren |
GB2424254B (en) | 2005-03-16 | 2007-02-14 | David Leigh | A live water pipe isolation unit |
DE102006022219B4 (de) * | 2006-05-11 | 2008-01-03 | Hydraulik-Ring Gmbh | Leckagedichter Nockenwellenversteller mit Rückstellfeder |
WO2010033417A2 (en) | 2008-09-19 | 2010-03-25 | Borgwarner Inc. | Cam torque actuated phaser using band check valves built into a camshaft or concentric camshafts |
-
2010
- 2010-10-04 WO PCT/EP2010/064751 patent/WO2011042391A1/de active Application Filing
- 2010-10-04 EP EP10766253.8A patent/EP2486248B1/de not_active Not-in-force
- 2010-10-04 US US13/500,335 patent/US8627795B2/en not_active Expired - Fee Related
- 2010-10-04 KR KR1020127008705A patent/KR101650220B1/ko active IP Right Grant
- 2010-10-04 CN CN201080044773.XA patent/CN102549240B/zh not_active Expired - Fee Related
- 2010-10-04 BR BR112012007632A patent/BR112012007632A2/pt not_active IP Right Cessation
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19757504A1 (de) * | 1997-12-23 | 1999-07-01 | Daimler Chrysler Ag | Gebaute Nockenwelle für eine Brennkraftmaschine |
GB2369175A (en) * | 2000-11-18 | 2002-05-22 | Mechadyne Plc | Variable phase coupling |
DE10344816A1 (de) | 2002-09-26 | 2004-05-06 | Aisin Seiki K.K., Kariya | Ventiltaktungssteuerungs- und Regelungseinrichtung |
US20050226736A1 (en) * | 2004-04-13 | 2005-10-13 | Lancefield Timothy M | Variable phase drive mechanism |
GB2423565A (en) | 2005-02-23 | 2006-08-30 | Mechadyne Plc | Inner camshaft of SCP assembly receives drive via sleeve on outer tube |
GB2424258A (en) * | 2005-03-18 | 2006-09-20 | Mechadyne Plc | Camshaft to phaser coupling |
EP1945918B1 (de) | 2005-11-02 | 2009-02-25 | Mechadyne plc | Nockenwellenanordnung |
GB2432645A (en) * | 2005-11-28 | 2007-05-30 | Mechadyne Plc | Variable phase drive coupling |
EP1803904A2 (de) * | 2005-12-21 | 2007-07-04 | Mahle International GmbH | Nockenwelle |
GB2433974A (en) * | 2006-01-04 | 2007-07-11 | Mechadyne Plc | Mounting of a SCP (single cam phaser) camshaft on an engine |
WO2008028902A1 (de) * | 2006-09-07 | 2008-03-13 | Mahle International Gmbh | Verstellbare nockenwelle |
WO2009098497A1 (en) | 2008-02-05 | 2009-08-13 | Mechadyne Plc | Oil feed arrangement for an scp camshaft |
DE102008019746A1 (de) * | 2008-04-19 | 2009-10-22 | Schaeffler Kg | Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013017303A1 (de) * | 2011-08-04 | 2013-02-07 | Schaeffler Technologies AG & Co. KG | Vormontage eines nockenwellenverstellers |
CN104246153A (zh) * | 2012-05-18 | 2014-12-24 | 舍弗勒技术有限两合公司 | 凸轮轴单元 |
WO2014071927A1 (de) * | 2012-11-12 | 2014-05-15 | Schaeffler Technologies AG & Co. KG | Nockenwellenverstelleinrichtung |
DE102012024955A1 (de) | 2012-12-20 | 2014-06-26 | Volkswagen Aktiengesellschaft | Rotor-Stator-Einheit, Welle-in-Welle-System mit einer solchen Rotor-Stator-Einheit sowie Verfahren zur Montage einer Rotor-Stator-Einheit auf einem Welle-in-Welle-System |
DE102013215553A1 (de) * | 2013-08-07 | 2015-02-12 | Mahle International Gmbh | Verfahren zur Montage einer verstellbaren Nockenwelle |
Also Published As
Publication number | Publication date |
---|---|
EP2486248A1 (de) | 2012-08-15 |
KR101650220B1 (ko) | 2016-08-22 |
CN102549240B (zh) | 2014-06-11 |
US20120192820A1 (en) | 2012-08-02 |
CN102549240A (zh) | 2012-07-04 |
KR20120089280A (ko) | 2012-08-09 |
US8627795B2 (en) | 2014-01-14 |
BR112012007632A2 (pt) | 2018-06-05 |
EP2486248B1 (de) | 2013-12-11 |
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