EP2326804B1 - Nockenwellenversteller - Google Patents

Nockenwellenversteller Download PDF

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Publication number
EP2326804B1
EP2326804B1 EP09780889A EP09780889A EP2326804B1 EP 2326804 B1 EP2326804 B1 EP 2326804B1 EP 09780889 A EP09780889 A EP 09780889A EP 09780889 A EP09780889 A EP 09780889A EP 2326804 B1 EP2326804 B1 EP 2326804B1
Authority
EP
European Patent Office
Prior art keywords
camshaft
bearing
adjuster
camshaft adjuster
hydraulic
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.)
Active
Application number
EP09780889A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2326804A1 (de
Inventor
Joachim Dietz
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
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
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Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP2326804A1 publication Critical patent/EP2326804A1/de
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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
    • 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
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L2001/0476—Camshaft bearings
    • 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
    • F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control 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
    • 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
    • F01L1/3442—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 hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves
    • F01L2001/34433—Location oil control valves

Definitions

  • the invention relates to a camshaft adjuster of an internal combustion engine, in particular a hydraulic camshaft adjuster.
  • a cylinder head for a valve-controlled internal combustion engine in which bearing blocks are provided for the intake and exhaust camshaft.
  • a bearing bush is provided in the bearing block to compensate for the mounting recesses needed in the bearing block and to allow the hydraulic oil supply of the camshaft adjuster in the bearing point.
  • the bushing has two axially juxtaposed openings for the Two-channel oil supply of the camshaft adjuster and a lubricant port for lubrication of the bearing point.
  • the DE 10 2004 053 572 B4 describes a hydraulic camshaft adjuster with a dual-channel oil guide in the camshaft.
  • two oil guide channels are formed, via which in each case an oil pressure chamber (depending on the desired adjustment direction) is supplied with hydraulic oil.
  • the oil guide channels extend through the camshaft and via external lines to an oil pump and an oil control valve.
  • the DE 198 17 319 A1 describes a hydraulic phaser in which a central spool is provided to supply hydraulic fluid to the working chambers of the vane phaser.
  • the central spool replaces the external valve and is integrated as a 4/2-way valve in the central mounting screw for the camshaft, which in the camshaft only a radial oil guide channel is required and the axial length of the camshaft adjuster is reduced.
  • the DE 10 2006 036 851 A1 shows a camshaft which is mounted in the cylinder head by rolling bearings. This camshaft is driven by a sprocket, which is rotatably connected at one end of the camshaft with the camshaft.
  • the object of the invention is to optimize a camshaft bearing point on the side of a hydraulic camshaft adjuster with regard to the occurring friction losses.
  • the rolling bearing is preferably a ball bearing.
  • the bearing of the invention the camshaft applicable to a wellgelzellenversteller with central pressure medium supply via a spool.
  • the space available for the arrangement of a rolling bearing can be used. But even with camshaft adjusters with axial oil guide channels, the invention can be applied.
  • the supply of hydraulic oil into the adjuster takes place on the side facing away from the camshaft. Also in this case, no oil guide channel in the camshaft is necessary, which reduces the axial space and still allows a rolling bearing of the camshaft.
  • Fig. 1 shows a camshaft adjuster 01.
  • the camshaft adjuster is designed as diegelzellenversteller in a known manner and arranged in the cylinder head of an internal combustion engine. It comprises an outer rotor 02, which is rotatably connected to a sprocket 03.
  • the sprocket 03 is connected via a chain with a crankshaft and is driven during operation of the internal combustion engine of this (not shown).
  • the camshaft adjuster 01 further comprises an inner rotor 04, which is rotatably connected to a camshaft 06.
  • the attachment of the inner rotor 04 on the camshaft 06 is realized via a central screw 07.
  • interlocking wings 08 are provided which form two pressure chambers 09 for the adjustment in the direction of "early” or “late” in ring sectors.
  • For adjustment is pumped depending on the desired adjustment in one of the pressure chambers 09 hydraulic oil, whereby a rotation between the inner rotor 04 and outer rotor 02, and thus an adjustment of the phase position of the camshaft 06 relative to the sprocket 03 and thus against the crankshaft.
  • a lock element (not shown) locks the phaser when the engine is stopped. During operation, this lock is hydraulically unlocked.
  • a control slide 11 is arranged in the central screw 07 coaxially with its longitudinal axis.
  • the spool 11 is axially displaceable by an actuator 12.
  • the actuator 12 is preferably a solenoid, which moves an armature 13.
  • the spool 11 forms with its annular channels 14 and radial bores 16 in the central screw 07 a multi-way valve, with which the flow of hydraulic oil to the one or the other pressure chamber 09 controlled and thus an adjustment is realized.
  • channels 17 are provided which allow the hydraulic oil flow from a radial channel 18 of the camshaft 06 via an axial passage 19 to the pressure chambers 09 via the spool 11.
  • a rolling bearing 22 is preferably arranged according to the invention adjacent to the radial channel 18 in the camshaft bearing point 23 of the cylinder head.
  • the hydraulic oil supply can take place via an axial passage in the camshaft 06.
  • the hydraulic oil supply can take place via an axial passage in the camshaft 06.
  • the adjuster bearing according to the invention of the camshaft in a rolling bearing can also be applied to other camshaft adjuster, if the axial space is available.

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)
EP09780889A 2008-08-21 2009-07-21 Nockenwellenversteller Active EP2326804B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008039038.0A DE102008039038B4 (de) 2008-08-21 2008-08-21 Nockenwellenversteller
PCT/EP2009/059371 WO2010020507A1 (de) 2008-08-21 2009-07-21 Nockenwellenversteller

Publications (2)

Publication Number Publication Date
EP2326804A1 EP2326804A1 (de) 2011-06-01
EP2326804B1 true EP2326804B1 (de) 2012-05-16

Family

ID=41055314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09780889A Active EP2326804B1 (de) 2008-08-21 2009-07-21 Nockenwellenversteller

Country Status (6)

Country Link
US (1) US8967104B2 (ko)
EP (1) EP2326804B1 (ko)
KR (1) KR101573102B1 (ko)
CN (1) CN102132015B (ko)
DE (1) DE102008039038B4 (ko)
WO (1) WO2010020507A1 (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012214963A1 (de) 2012-08-23 2014-02-27 Schaeffler Technologies AG & Co. KG Radiale Nockenwellendruckmittelübertragung
DE102012214960A1 (de) 2012-08-23 2014-02-27 Schaeffler Technologies AG & Co. KG Wälzlager mit radialer Druckmittelübertragung
DE102013207383A1 (de) 2013-04-24 2014-10-30 Schaeffler Technologies Gmbh & Co. Kg Nockenwellenverstelleinrichtung

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005603B4 (de) * 2010-01-25 2021-05-20 Schaeffler Technologies AG & Co. KG Nockenwellenverstellanordnung mit einem als Wälzlager ausgebildetem Nockenwellenlager
DE102010012479A1 (de) * 2010-03-24 2011-09-29 Schaeffler Technologies Gmbh & Co. Kg Steuerventil einer Vorrichtung zur Veränderung der relativen Winkellage einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine
DE102011081484A1 (de) * 2011-08-24 2013-02-28 Mahle International Gmbh Lagerbock
DE102012201573A1 (de) * 2012-02-02 2013-08-08 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
DE102012210016A1 (de) * 2012-06-14 2013-12-19 Schaeffler Technologies AG & Co. KG Nockenwellenverstelleranordnung
GB2504100A (en) * 2012-07-17 2014-01-22 Mechadyne Internat Ltd A concentric camshaft supported by roller bearings
DE102012221876B4 (de) 2012-11-29 2021-01-07 Schaeffler Technologies AG & Co. KG Nockenwellenverstellvorrichtung
DE102013016907A1 (de) 2013-06-28 2014-12-31 Daimler Ag Nockenwellenversteller für eine Brennkraftmaschine
DE102013212935B4 (de) 2013-07-03 2024-02-08 Schaeffler Technologies AG & Co. KG Aktuator-Nockenwellenversteller-System für einen trockenen Riementrieb
DE102013216184B4 (de) * 2013-08-14 2020-11-26 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
KR101518897B1 (ko) 2013-09-06 2015-05-11 현대자동차 주식회사 가변 밸브 타이밍 기구를 갖는 엔진
DE102013020770A1 (de) 2013-12-11 2015-06-11 Daimler Ag Zylinderkopfvorrichtung für eine Brennkraftmaschine
DE102018101972A1 (de) * 2017-03-21 2018-09-27 ECO Holding 1 GmbH Nockenwellenversteller für eine Nockenwelleneinrichtung und Nockenwelleneinrichtung
DE102017209671A1 (de) * 2017-06-08 2018-12-13 Aktiebolaget Skf Wälzlageranordnung insbesondere für eine Nockenwelle
DE102017122425A1 (de) * 2017-09-27 2019-03-28 ECO Holding 1 GmbH Bausatz mit einem Nockenwellenversteller
DE102020121608A1 (de) 2020-08-18 2022-02-24 Schaeffler Technologies AG & Co. KG Nockenwellenverstelleinheit und Verfahren zum Betrieb der Nockenwellenverstelleinheit

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US3063306A (en) * 1960-03-16 1962-11-13 Westinghouse Air Brake Co Adjustable cam device
JPS58162708A (ja) * 1982-03-24 1983-09-27 Toyota Motor Corp 内燃機関のバルブタイミング制御装置
IT1152959B (it) * 1982-05-17 1987-01-14 Alfa Romeo Spa Dispositivo per la variazione automatica della fasatura di un albero a camme
US5088456A (en) * 1990-01-30 1992-02-18 Atsugi-Unisia Corporation Valve timing control system to adjust phase relationship between maximum, intermediate, and minimum advance position
US5934234A (en) * 1996-10-24 1999-08-10 Honda Giken Kogyo Kabushiki Kaisha Assembly structure of a shaft having a fixed sprocket
DE19752381A1 (de) 1997-11-26 1999-05-27 Volkswagen Ag Zylinderkopf für eine Brennkraftmaschine mit Pumpedüse-Einheit
JP4070857B2 (ja) 1997-12-17 2008-04-02 トヨタ自動車株式会社 内燃機関のバルブ特性制御装置
DE19817319C2 (de) * 1998-04-18 2001-12-06 Daimler Chrysler Ag Nockenwellenversteller für Brennkraftmaschinen
DE10002512A1 (de) 2000-01-21 2001-07-26 Porsche Ag Zylinderkopf für eine ventilgesteuerte Brennkraftmaschine
DE10038354C2 (de) 2000-08-05 2003-03-20 Atlas Fahrzeugtechnik Gmbh Steuereinrichtung zum Verstellen des Drehwinkels einer Nockenwelle
DE10108055C1 (de) * 2001-02-20 2002-08-08 Siemens Ag Verfahren zum Steuern einer Brennkraftmaschine
DE10134320A1 (de) * 2001-07-14 2003-01-23 Ina Schaeffler Kg Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine, insbesondere Rotationskolben-Verstelleinrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle
JP2005155541A (ja) 2003-11-27 2005-06-16 Mitsubishi Electric Corp バルブタイミング調整装置およびその組立装置
JP2006170117A (ja) * 2004-12-17 2006-06-29 Yamaha Motor Co Ltd バルブタイミング制御装置ならびにそれを備えるエンジン装置および車両
CN101968073B (zh) * 2005-08-05 2012-07-18 诺伊曼尔·泰克福尔控股有限公司 用于制造功能体的方法
DE102006036851A1 (de) * 2005-08-05 2007-06-28 Neumayer Tekfor Holding Gmbh Welle wie Nockenwelle für Brennkraftmaschinen, Verfahren zur Herstellung solcher Wellen, sowie damit ausgerüstete Brennkraftmaschinen
DE102005059841A1 (de) 2005-12-15 2007-07-05 Schaeffler Kg Nockenwellenversteller
DE102005060111A1 (de) * 2005-12-16 2007-07-05 Schaeffler Kg Nockenwellenverstellerzuleitung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012214963A1 (de) 2012-08-23 2014-02-27 Schaeffler Technologies AG & Co. KG Radiale Nockenwellendruckmittelübertragung
DE102012214960A1 (de) 2012-08-23 2014-02-27 Schaeffler Technologies AG & Co. KG Wälzlager mit radialer Druckmittelübertragung
DE102013207383A1 (de) 2013-04-24 2014-10-30 Schaeffler Technologies Gmbh & Co. Kg Nockenwellenverstelleinrichtung
WO2014173396A1 (de) 2013-04-24 2014-10-30 Schaeffler Technologies Gmbh & Co. Kg Nockenwellenverstelleinrichtung
DE102013207383B4 (de) 2013-04-24 2022-03-24 Schaeffler Technologies AG & Co. KG Nockenwellenverstelleinrichtung

Also Published As

Publication number Publication date
DE102008039038A1 (de) 2010-02-25
DE102008039038B4 (de) 2021-01-28
KR101573102B1 (ko) 2015-11-30
US8967104B2 (en) 2015-03-03
CN102132015A (zh) 2011-07-20
KR20110059594A (ko) 2011-06-02
CN102132015B (zh) 2013-10-30
WO2010020507A1 (de) 2010-02-25
US20110139101A1 (en) 2011-06-16
EP2326804A1 (de) 2011-06-01

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