EP1452698B1 - Nockenwellenverstelleinrichtung für Brennkraftmaschinen von Kraftfahrzeugen - Google Patents

Nockenwellenverstelleinrichtung für Brennkraftmaschinen von Kraftfahrzeugen Download PDF

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Publication number
EP1452698B1
EP1452698B1 EP04004005A EP04004005A EP1452698B1 EP 1452698 B1 EP1452698 B1 EP 1452698B1 EP 04004005 A EP04004005 A EP 04004005A EP 04004005 A EP04004005 A EP 04004005A EP 1452698 B1 EP1452698 B1 EP 1452698B1
Authority
EP
European Patent Office
Prior art keywords
camshaft
gear
camshaft adjuster
adjuster
wheel
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.)
Expired - Lifetime
Application number
EP04004005A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1452698A1 (de
Inventor
Knecht Andreas
Polzin Ulf
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.)
Hilite Germany GmbH
Original Assignee
Hydraulik Ring 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 Hydraulik Ring GmbH filed Critical Hydraulik Ring GmbH
Publication of EP1452698A1 publication Critical patent/EP1452698A1/de
Application granted granted Critical
Publication of EP1452698B1 publication Critical patent/EP1452698B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01L1/34—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
    • F01L1/02—Valve drive
    • F01L1/022—Chain 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
    • F01L1/024—Belt 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
    • F01L1/026—Gear 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
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F01L2001/0537—Double overhead camshafts [DOHC]

Definitions

  • the invention relates to a camshaft adjusting device for internal combustion engines of motor vehicles according to the preamble of claim 1.
  • Camshaft adjusting devices are used in internal combustion engines of motor vehicles to control the opening time of the intake valves as a function of the power requirement of the internal combustion engine.
  • an intake camshaft adjuster 1 (FIG. 2) and / or an exhaust camshaft adjuster 2 are provided, which are drive-connected to a crankshaft 3 via an endlessly circulating chain 5.
  • the camshaft adjusters 1, 2 each have a stator in which a rotor is relatively rotatably accommodated, which rotatably seated on the respective camshaft 12, 29. The rotors are pressurized with media when they are to be rotated relative to the stator.
  • the stators of the two camshaft adjusters 1, 2 are each provided with a drive wheel 6, 6 'over which the chain 5 is guided. In cramped installation conditions, it is difficult and sometimes not possible to mount the chain 5.
  • camshaft drive devices are known in which the camshafts are drive-connected to one another via a toothed gearing, while one of these camshafts is driven by the crankshaft via an endless drive (US Pat. No. 4,610,224, DE 100 01 066 A, EP-A-0 420,290, EP-A-0 740 053).
  • the invention has the object of providing the generic camshaft adjusting so that they can be easily installed even in confined spaces.
  • the two camshaft adjusters are drive-connected to one another via the gearwheel transmission.
  • the drive wheel of a camshaft adjuster can be mounted in a positionally convenient manner, whereby even in cramped installation conditions, the endlessly revolving drive element can be easily mounted.
  • the drive wheel is axially adjacent to the gear and is connected to it, so that the two drive trains are arranged side by side and thus take up little space to complete.
  • the two camshaft adjusters each have a stator surrounding a rotor which is rotatable relative to the stator and rotatably seated on the respective camshaft.
  • the rotors of the camshaft adjusters can be adjusted by pressure medium in the desired direction relative to the stator, so as to change the opening timing of the intake valves of the internal combustion engine in this way.
  • the camshaft adjuster are directly engaged with each other via their gears.
  • the crankshaft is connected only to the one camshaft adjuster via the endless drive.
  • the gears of the two Nokkenwellenversteller engage in a common gear, which sits non-rotatably on an intermediate shaft. It is in turn drive-connected to the crankshaft via the endless drive.
  • the intermediate shaft is rotatably driven via the endless drive, whereby the camshaft adjuster are driven via the gear transmission.
  • the camshaft adjusting device has the intake camshaft adjuster 1 and the exhaust camshaft adjuster 2.
  • the crankshaft 3 is rotatably mounted on a chain wheel 4, which is drive-connected via the chain 5 to the sprocket wheel 6 of the exhaust camshaft adjuster 2.
  • the sprocket 6 may be formed single track or two lanes. As shown in FIGS. 3 to 5, the sprocket 6 is formed in the embodiment of two lanes and accordingly has two sprockets 7 and 8.
  • the sprocket 6 is connected via a spacer 9 with a sprocket 10, which is advantageous is integrally connected to the stator 11.
  • the stator 11 has a cylindrical jacket 13, which projects axially beyond the toothed rim 10 and which has at least one recess 14 extending in the axial direction, which in the exemplary embodiment has a part-circular cross-section.
  • this recess 14 engages positively a corresponding projection 15, which is provided on the inside of the sprocket 6.
  • the spacer 9 and the sprocket 2 are pushed. Subsequently, the spacer 9 and the sprocket 6 are connected by screws 16 to the stator 11 and the ring gear 10.
  • the ring gear 10 has a larger inner diameter than the shell 13 of the stator 11. From the inside of the ring gear 10 are distributed over the circumference uniformly distributed webs 17, which connect the ring gear 10 with the stator shell 13. The webs 17 have threaded holes 18 into which the screws 16 are screwed.
  • the spacer 9 has distributed over the circumference provided thickenings 19 which protrude beyond both sides of the spacer member 9 and each having an opening 20 for the passage of the screws 16.
  • the sprocket 6 has an inner circumferential flange 21, which is provided approximately in half the width of the sprocket 6 and distributed over the circumference arranged openings 22 for the passage of the screws 16. Since the flange 21 is set back from the end faces of the sprocket 6, the heads 23 of the screws 16 are recessed in the sprocket 6 ( Figure 4). The spacer 9 holds the sprocket 6 at an axial distance from the sprocket 10th
  • a cover plate 24 (Fig. 4) secured with screws 25.
  • the cover plate 24 secures in a known manner the rotatably on the camshaft 12 (Fig. 1) seated rotor axially.
  • an annular disc 26 is fastened with screws 27, which secures the rotor in the other axial direction in the stator 11.
  • the chain 5 of the camshaft adjusting device is guided over the sprocket 6 (FIG. 1).
  • the sprocket 10 engages in a ring gear 28 of the intake camshaft adjuster 1 (FIG. 1), which is rotatably connected to the stator, preferably integrally formed with it.
  • the sprockets 10, 28 have the same diameter.
  • the sprocket 6 can be easily mounted on the stator shell 13 in the manner described.
  • the crankshaft 3 is connected via the chain 5 with the camshaft 12, which in turn is drivingly connected via the gear transmission 10, 28 with the camshaft 29.
  • the sprocket 10 and the sprocket 6 may be made of different materials, so that an optimal adaptation in the material of these parts in view of the application is possible.
  • the intake camshaft adjuster 1 and the exhaust camshaft adjuster 2 are not engaged with each other directly via the sprockets 10, 28.
  • the camshaft adjusting device has an intermediate shaft 30, which is parallel to the crankshaft 3 and the camshafts 12, 29 and rotatably carries a gear 31 which is in engagement with the sprockets 10, 28 of the two camshaft adjusters 1, 2.
  • the crankshaft 3 thus drives via the chain drive 4, 5, 32, the intermediate shaft 30, which in turn drives the camshaft adjuster 1, 2 in the manner described via the gear 31.
  • the gears 31 and 10, 28 advantageously have the same diameter. But it is also possible that the gear 31 has a different diameter than the sprockets 10, 28, so that depending on the diameter ratio over- or reduction is possible.
  • This embodiment is characterized in that they are easily mounted in confined spaces.
  • the chain drive is only provided between the gear 4 on the crankshaft 3 and the gear 31 on the intermediate shaft 30.

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)
EP04004005A 2003-02-26 2004-02-23 Nockenwellenverstelleinrichtung für Brennkraftmaschinen von Kraftfahrzeugen Expired - Lifetime EP1452698B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10308072A DE10308072A1 (de) 2003-02-26 2003-02-26 Nockenwellenverstelleinrichtung für Brennkraftmaschinen von Kraftfahrzeugen
DE10308072 2003-02-26

Publications (2)

Publication Number Publication Date
EP1452698A1 EP1452698A1 (de) 2004-09-01
EP1452698B1 true EP1452698B1 (de) 2007-01-24

Family

ID=32748048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04004005A Expired - Lifetime EP1452698B1 (de) 2003-02-26 2004-02-23 Nockenwellenverstelleinrichtung für Brennkraftmaschinen von Kraftfahrzeugen

Country Status (6)

Country Link
US (1) US6928971B2 (es)
EP (1) EP1452698B1 (es)
AT (1) ATE352703T1 (es)
DE (2) DE10308072A1 (es)
ES (1) ES2279987T3 (es)
PT (1) PT1452698E (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010012483A1 (de) 2010-03-24 2011-09-29 Schaeffler Technologies Gmbh & Co. Kg Vorrichtung zur Veränderung der relativen Winkellage einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine
US8726868B2 (en) 2012-01-16 2014-05-20 Ford Global Technologies, Llc Engine drive system
CN110195624B (zh) 2018-02-27 2022-05-17 博格华纳公司 凸轮轴承间的凸轮相位器
CN111140305B (zh) 2018-11-01 2024-02-02 博格华纳公司 凸轮相位器凸轮轴联接
DE102018129521B3 (de) * 2018-11-23 2020-03-19 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
US20220127978A1 (en) * 2020-10-22 2022-04-28 Borgwarner, Inc. Variable camshaft timing assembly with deformable extension

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749896A (en) * 1952-08-01 1956-06-12 Paul A Jarand Compression operated fuel injection pump
US2749893A (en) * 1952-11-05 1956-06-12 Porsche Kg Cam shaft drives for the valve gear of multibank internal combustion engines
US3110195A (en) * 1961-12-27 1963-11-12 Gen Motors Corp Countershaft driving system for internal combustion engine and the like
US4167882A (en) * 1976-03-17 1979-09-18 Siwersson Olle Lennart Adjustable wrench
JPS59166759A (ja) * 1983-03-11 1984-09-20 Honda Motor Co Ltd エンジンにおけるカム軸駆動装置
JPS61145306A (ja) * 1984-12-20 1986-07-03 Toyota Motor Corp Ｖ型６気筒ｄｏｈｃ内燃機関
US4810224A (en) * 1987-03-09 1989-03-07 Devincent Robert J Combat toy with telemetry controlled destruct simulation
US4915066A (en) * 1988-07-20 1990-04-10 Mazda Motor Corporation Valve train for V-type double-overhead-camshaft engine
DE69007728T2 (de) * 1989-09-29 1994-09-15 Mazda Motor Ventiltriebvorrichtung für Brennkraftmaschine.
JPH0666112A (ja) * 1992-08-20 1994-03-08 Mazda Motor Corp Ｖ型エンジン
DE59402976D1 (de) * 1993-03-03 1997-07-10 Bayerische Motoren Werke Ag Brennkraftmaschine mit einer Nockenwellen-Antriebsverstelleinheit
US5417186A (en) * 1993-06-28 1995-05-23 Clemson University Dual-acting apparatus for variable valve timing and the like
JPH0868340A (ja) * 1994-05-19 1996-03-12 Yamaha Motor Co Ltd カムシャフト駆動装置を備えるｖ型エンジン
JP3617118B2 (ja) * 1995-04-28 2005-02-02 いすゞ自動車株式会社 Ｄｏｈｃエンジン
JP3539182B2 (ja) * 1998-02-20 2004-07-07 トヨタ自動車株式会社 可変バルブタイミング装置
JP4040779B2 (ja) 1998-12-25 2008-01-30 ヤマハ発動機株式会社 エンジンのバルブタイミング制御装置およびバルブタイミング制御方法
DE10001066A1 (de) * 2000-01-13 2001-03-22 Daimler Chrysler Ag Vorrichtung und Verfahren zum Antreiben von Nockenwellen einer in V-Bauweise ausgeführten Brennkraftmaschine
JP2001329885A (ja) 2000-05-18 2001-11-30 Yamaha Motor Co Ltd エンジンのカム角センサ搭載構造
DE10042014A1 (de) * 2000-08-26 2002-03-07 Daimler Chrysler Ag Nockenwellenantriebsvorrichtung

Also Published As

Publication number Publication date
ATE352703T1 (de) 2007-02-15
US6928971B2 (en) 2005-08-16
US20040221826A1 (en) 2004-11-11
DE10308072A1 (de) 2004-09-09
PT1452698E (pt) 2007-04-30
ES2279987T3 (es) 2007-09-01
EP1452698A1 (de) 2004-09-01
DE502004002717D1 (de) 2007-03-15

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