EP1966465B1 - Nockenwellenversteller mit einer verriegelungseinrichtung - Google Patents

Nockenwellenversteller mit einer verriegelungseinrichtung Download PDF

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Publication number
EP1966465B1
EP1966465B1 EP06830175A EP06830175A EP1966465B1 EP 1966465 B1 EP1966465 B1 EP 1966465B1 EP 06830175 A EP06830175 A EP 06830175A EP 06830175 A EP06830175 A EP 06830175A EP 1966465 B1 EP1966465 B1 EP 1966465B1
Authority
EP
European Patent Office
Prior art keywords
locking
camshaft adjuster
end position
early
internal combustion
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
EP06830175A
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German (de)
English (en)
French (fr)
Other versions
EP1966465A1 (de
Inventor
Andreas Strauss
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
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of EP1966465A1 publication Critical patent/EP1966465A1/de
Application granted granted Critical
Publication of EP1966465B1 publication Critical patent/EP1966465B1/de
Active 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
    • 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
    • F01L1/3442—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
    • 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
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34483—Phaser return springs

Definitions

  • the invention relates to a camshaft adjuster of an internal combustion engine having a locking device, in particular according to the preamble of claims 1 and 3.
  • a locking device is known with a locking pin designed as a locking element, the front end portion is formed cone-shaped and in a "locked
  • the locking pin is spring-loaded and has two hydraulic control surfaces, of which the first front-side control surface is in hydraulic communication with a chamber of the camshaft adjuster and a second hydraulic control surface is in hydraulic engagement with a chamber of the camshaft adjuster. formed by a shoulder of the locking pin control surface is in hydraulic communication with another, oppositely acting chamber of the camshaft adjuster.
  • a locking device in which a locking pin cooperates with a stepped locking groove, wherein different plateaus of the stepped locking groove with different locking positions, such as a most advanced angle, an intermediate position and a most retarded angle, correspond.
  • a locking device in which a first locking pin between an end position "early” and a center position assumes a “locked position”, while a second locking pin can assume a "locked position” between a final position "late” and the center position.
  • the first lock pin With a drop in oil pressure to zero, the first lock pin can be brought into the "locked position” while the second lock pin remains in the "unlocked position”.
  • the inner rotor is adjusted by a drag torque of the camshaft as long as “late” until the first locking pin reaches the center position. At this time, the second locking pin also enters the "locked position".
  • the controller raises the oil pressure in a first oil pressure line, a first working chamber and in the area of the first locking pin. Thereby, the first locking pin is unlocked, while the second locking pin is held in pressure contact with the second center stop. For a transition to a controlled operation, the controller increases the pressure in the second working chamber, thereby also unlocking the second locking pin, so that the inner rotor can move freely.
  • a corresponding locking device is also off US Pat. No. 6,450,137 B2 or EP 0 859 130 A known.
  • locking elements When acting in the end positions according to the invention locking elements it may be single-acting locking elements or a double, redundant locking element, as this is disclosed in the aforementioned non-prepublished patent application of the Applicant, wherein the geometries of the locking element and the receptacle for the locking element from this unpublished prior art the present invention are transferable.
  • a restart of the internal combustion engine after a lock in an end position "early” or “late” can lead to a jerktransportren or more uniform behavior of the internal combustion engine, because by the control times, a decompression of the internal combustion engine takes place.
  • a locking in an end position can be useful only for a targeted parking.
  • An additional lock in a "late” end position can also serve as a kind of "emergency anchor” if the lock does not work in a center position.
  • At least a third locking element is provided, which in a third position, namely in a between the end position “early” and the end position "late” arranged “center position” can be locked.
  • a third locking position By means of such a third locking position, the operating conditions to be expected after switching off the internal combustion engine can be taken into account in even greater detail.
  • the camshaft adjuster in a central position between an end position and the "center position", so that according to the invention the camshaft adjuster has to cover a maximum of half the distance between the end position and the "center position”.
  • an influencing of the position of the camshaft adjuster takes place with switching off the internal combustion engine, for switched-off internal combustion engine or for a restart of the internal combustion engine by a compensation element, in particular a spring, such as a torsion spring or a compression spring acting in the circumferential direction.
  • a compensation element can influence the balance of power at the camshaft adjuster such that when the camshaft adjuster is switched off between the end position "early” and the "center position", an adjustment thereof takes place in the direction of the end position "early". In the end position then the locking of the camshaft adjuster takes place.
  • FIG. 1 shows a camshaft adjuster 10 for an internal combustion engine, in which a drive element 11, which is for example rotatably connected to a sprocket and is driven by a timing chain, opposite to a Output element 12, which is for example non-rotatably coupled to a camshaft 13, in the course of an adjusting movement of the camshaft adjuster 10 about a vertically oriented plane oriented axis of rotation 14 is rotatable defined.
  • working spaces 15 here five
  • are formed which are bounded radially outwards and in both circumferential directions by the drive element 11 and radially inwardly by a lateral surface of the output element 12.
  • Wings 16 of the driven element 11 divide the working spaces 15 into a chamber 17, by means of which an adjustment of the camshaft adjuster 10 in the direction of the end position "late” 19 takes place, and a chamber 18, in the hydraulic actuation an adjusting movement in the direction of the end position "early” 20th he follows.
  • the camshaft adjuster 10 In the in FIG. 1 outlined position is the camshaft adjuster 10 in a "center position" for which the wings 16 are approximately in the middle between the end position "early” (20) and the end position "late” (19).
  • the camshaft adjuster 10 has a center lock with two locking elements 21, 22.
  • the locking elements 21, 22 respectively lock in different areas between one end position and the middle position, so that both locking elements 21, 22 are locked for reaching the middle position.
  • a detailed description of the operation of such a central locking with two locking pins can, for example, the publications DE 102 53 496 and US Pat. No. 6,450,137 B2 be removed.
  • the locking elements 21, 22 are referred to in the context of the invention as a third locking element.
  • the camshaft adjuster 10 has a first locking element 23, which in the region of the end position "early” 20 can be transferred from an "unlocked position” into a “locked position".
  • a second locking element 24 can be transferred in the end position "late” 19 of the "unlocked position” in the "locked position".
  • the locking elements 21, 22, 23, 24 are in particular an axially movable locking pin, which in the "unlocked position” produces a positive connection between the drive element 11 and the output member 12, while in the “unlocked position” this positive connection is released.
  • the locking pin is in particular spring-loaded in the direction of the "locked position” and can be moved by pressurization in the region of an end face or an associated active surface of the locking pin against the spring loading in the "unlocked position".
  • the first locking element 23 is acted upon by a hydraulic connection 25 from the pressure in a chamber 17, while the second locking element 24 is acted upon via a hydraulic connection 27 to the pressure in a chamber 18.
  • the camshaft adjuster 10 is equipped with a compensation element 27, which influences the balance of power of the camshaft adjuster 10 in the direction of an adjustment in the direction of the end position "early". If this influence is greater than a possible friction torque of the elements to be adjusted at a start of the internal combustion engine and, for example, the camshaft adjuster 10 between the end position "early". 20 and the "center position" turned off, the compensation element 27 can cause an adjustment of the camshaft adjuster 10 in the direction of the end position "early" 20.
  • a lock can, for example.
  • the end position "early” come into effect, for example, in a V-type internal combustion engine. If in this case a control valve of a bank of the V-type internal combustion engine is blocked by a chip and an adjustment takes place in the direction of the end position "early”, then the camshaft adjuster of the other bank can also be purposefully adjusted and locked “early”. The same applies accordingly for an adjustment in the direction of "late”.

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)
EP06830175A 2005-12-20 2006-11-29 Nockenwellenversteller mit einer verriegelungseinrichtung Active EP1966465B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005060829A DE102005060829A1 (de) 2005-12-20 2005-12-20 Nockenwellenversteller mit einer Verriegelungseinrichtung
PCT/EP2006/069026 WO2007071528A1 (de) 2005-12-20 2006-11-29 Nockenwellenversteller mit einer verriegelungseinrichtung

Publications (2)

Publication Number Publication Date
EP1966465A1 EP1966465A1 (de) 2008-09-10
EP1966465B1 true EP1966465B1 (de) 2011-05-18

Family

ID=37716226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06830175A Active EP1966465B1 (de) 2005-12-20 2006-11-29 Nockenwellenversteller mit einer verriegelungseinrichtung

Country Status (8)

Country Link
US (1) US7934479B2 (ko)
EP (1) EP1966465B1 (ko)
JP (1) JP5147718B2 (ko)
KR (1) KR101336467B1 (ko)
CN (1) CN101341314B (ko)
AT (1) ATE510111T1 (ko)
DE (1) DE102005060829A1 (ko)
WO (1) WO2007071528A1 (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5763432B2 (ja) * 2011-06-17 2015-08-12 日立オートモティブシステムズ株式会社 内燃機関のバルブタイミング制御装置
DE102012209027B4 (de) 2012-05-30 2017-06-22 Schaeffler Technologies AG & Co. KG Nockenwellenversteller
US9121358B2 (en) 2013-02-22 2015-09-01 Borgwarner Inc. Using camshaft timing device with hydraulic lock in an intermediate position for vehicle restarts
US8893677B2 (en) 2013-03-14 2014-11-25 Borgwarner Inc. Dual lock pin phaser
WO2014204650A1 (en) 2013-06-19 2014-12-24 Borgwarner Inc. Variable camshaft timing mechanism with a lock pin engaged by oil pressure
JP6221694B2 (ja) * 2013-11-29 2017-11-01 アイシン精機株式会社 弁開閉時期制御装置
CN109209548B (zh) 2017-06-30 2022-01-25 博格华纳公司 具有两个锁定位置的可变凸轮轴正时装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3075337B2 (ja) * 1995-06-14 2000-08-14 株式会社デンソー 内燃機関用バルブタイミング調整装置
GB2302391B (en) 1995-06-14 1999-08-18 Nippon Denso Co Control apparatus for varying the rotational or angular phase between two rotational shafts
JP3164007B2 (ja) * 1997-02-14 2001-05-08 トヨタ自動車株式会社 内燃機関のバルブタイミング調整装置
JP3918971B2 (ja) 1998-04-27 2007-05-23 アイシン精機株式会社 弁開閉時期制御装置
DE19961192A1 (de) * 1999-12-18 2001-06-28 Schaeffler Waelzlager Ohg Rotationskolbenversteller
JP4389383B2 (ja) * 1999-12-24 2009-12-24 アイシン精機株式会社 弁開閉時期制御装置
DE10064222B4 (de) * 1999-12-24 2006-02-09 Aisin Seiki K.K., Kariya Verstellbares Ventilsteuersystem
KR100474398B1 (ko) * 2000-01-25 2005-03-08 미쓰비시덴키 가부시키가이샤 밸브타이밍 조정장치
JP2002122009A (ja) 2000-08-09 2002-04-26 Mitsubishi Electric Corp バルブタイミング調整装置
JP4465846B2 (ja) 2000-09-27 2010-05-26 アイシン精機株式会社 弁開閉時期制御装置
DE10253496B4 (de) 2001-11-21 2017-03-16 Schaeffler Technologies AG & Co. KG Verfahren zum Betreiben eines hydraulischen Nockenwellenversteller s
DE10211607A1 (de) * 2002-03-12 2003-10-09 Porsche Ag Antrieb für Ventiltriebsteuerungen von Fahrzeugen, vorzugsweise von Nockenwellenverstellern
JP2003320356A (ja) * 2002-05-01 2003-11-11 Babcock Hitachi Kk 有機性廃棄物の処理方法及び装置
JP2004116410A (ja) * 2002-09-26 2004-04-15 Aisin Seiki Co Ltd 弁開閉時期制御装置
US7387097B2 (en) * 2004-10-08 2008-06-17 Ina-Schaeffler Jg INA-schaeffler KG, industriestrasse 1-3, 91074 herzogenaurach ANR 12 88 48 20
US7261072B2 (en) * 2004-10-08 2007-08-28 Schaeffler Kg Device for altering the control times of gas exchange valves of an internal combustion engine

Also Published As

Publication number Publication date
US7934479B2 (en) 2011-05-03
KR101336467B1 (ko) 2013-12-04
WO2007071528A1 (de) 2007-06-28
ATE510111T1 (de) 2011-06-15
CN101341314A (zh) 2009-01-07
DE102005060829A1 (de) 2007-07-05
KR20080079654A (ko) 2008-09-01
JP5147718B2 (ja) 2013-02-20
CN101341314B (zh) 2012-12-26
US20080289595A1 (en) 2008-11-27
JP2009520150A (ja) 2009-05-21
EP1966465A1 (de) 2008-09-10

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