EP2492459A3 - Cam shaft phase adjuster with improved locking device - Google Patents

Cam shaft phase adjuster with improved locking device Download PDF

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Publication number
EP2492459A3
EP2492459A3 EP12156574A EP12156574A EP2492459A3 EP 2492459 A3 EP2492459 A3 EP 2492459A3 EP 12156574 A EP12156574 A EP 12156574A EP 12156574 A EP12156574 A EP 12156574A EP 2492459 A3 EP2492459 A3 EP 2492459A3
Authority
EP
European Patent Office
Prior art keywords
locking
engagement
rotor
pin portion
stator
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
Application number
EP12156574A
Other languages
German (de)
French (fr)
Other versions
EP2492459A2 (en
EP2492459B1 (en
Inventor
Jürgen Bohner
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.)
Schwaebische Huettenwerke Automotive GmbH
Original Assignee
Schwaebische Huettenwerke Automotive GmbH
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Filing date
Publication date
Application filed by Schwaebische Huettenwerke Automotive GmbH filed Critical Schwaebische Huettenwerke Automotive GmbH
Publication of EP2492459A2 publication Critical patent/EP2492459A2/en
Publication of EP2492459A3 publication Critical patent/EP2492459A3/en
Application granted granted Critical
Publication of EP2492459B1 publication Critical patent/EP2492459B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F01L1/02—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
    • F01L2001/34433—Location 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
    • F01L2001/34446—Fluid accumulators for the feeding circuit
    • 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
    • F01L2001/34453—Locking means between driving and driven members
    • 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
    • F01L2001/34453—Locking means between driving and driven members
    • F01L2001/34456—Locking in only one position
    • 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
    • F01L2001/34453—Locking means between driving and driven members
    • F01L2001/34469—Lock movement parallel to camshaft axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

Phasensteller zur Verstellung der Drehwinkelposition einer Nockenwelle relativ zu einer Kurbelwelle einer Brennkraftmaschine, der Phasensteller umfassend:
einen von der Kurbelwelle drehantreibbaren Stator (3) und einen Rotor (7),
eine Frühstellkammer (8) zur Erzeugung eines auf den Rotor (7) relativ zum Stator (3) in Richtung Voreilung wirkenden Drehmoments und eine Spätstellkammer (9) zur Erzeugung eines auf den Rotor (7) relativ zum Stator (3) in Richtung Nacheilung wirkenden Drehmoments,
einen Verriegelungspin (60; 70; 100), der an einem aus Stator (3) und Rotor (7) in eine Ver- und
Entriegelungsrichtung (± L) in und aus einem Verriegelungseingriff hin und her beweglich abgestützt und durch Beaufschlagung mit dem Druckfluid gegen Federkraft aus dem Verriegelungseingriff bewegbar ist,
und eine von dem anderen aus Stator (3) und Rotor (7) gebildete Aufnahme (80; 90; 110), in die der Verriegelungspin (60; 70; 100) im Verriegelungseingriff mit einem bis zu einem freien Ende des Verriegelungspins (60; 70; 100) reichenden vorderen Pinabschnitt (61; 71; 101) und einem vom freien Ende entfernten hinteren Pinabschnitt (62; 72; 102) eingreift und dadurch den Rotor (7) gegen ein Verdrehen relativ zum Stator (3) blockiert,
wobei der hintere Pinabschnitt (62; 72; 102) eine im Verriegelungseingriff in die Aufnahme (80; 90; 110) eingreifende, bis zu einem Öffnungsrand (83; 93; 113) der Aufnahme (80; 90; 110) gemessene Länge (L62; L72; L102) aufweist, die höchstens fünfmal, vorzugsweise höchstens dreimal oder höchstens halb so groß wie die Länge (L61; L71; L101) des vorderen Pinabschitts (61; 71; 101) ist, und die Aufnahme (80; 90; 110) mit jeweils korrespondierender Länge einen im Verriegelungseingriff mit dem vorderen Pinabschnitt (61; 71; 101) überlappenden unteren Aufnahmeabschnitt (81; 31; 111) und einen im Verriegelungseingriff mit dem hinteren Pinabschnitt (62; 72; 102) überlappenden, den Öffnungsrand (83; 93; 113) aufweisenden oberen Aufnahmeabschnitt (82; 92; 112) aufweist.Phase adjuster for adjusting the rotational angular position of a camshaft relative to a crankshaft of an internal combustion engine, the phaser comprises:
a rotatably driven by the crankshaft stator (3) and a rotor (7),
a Frühstellkammer (8) for generating a on the rotor (7) relative to the stator (3) acting in the direction of advance torque and a late setting chamber (9) for generating a on the rotor (7) relative to the stator (3) in the direction of retardation torque
a locking pin (60; 70; 100) connected to one of stator (3) and rotor (7) in a supply and
Unlocking direction (± L) is reciprocally movably supported in and out of a locking engagement and is movable out of the locking engagement by application of the pressure fluid against spring force,
and a receptacle (80; 90; 110) formed by the other one of the stator (3) and rotor (7) into which the locking pin (60; 70; 100) is locked in engagement with a free end of the locking pin (60; 70; 100) engages the front pin portion (61; 71; 101) and a rear pin portion (62; 72; 102) remote from the free end and thereby blocks the rotor (7) from rotating relative to the stator (3).
wherein the rearward pin portion (62; 72; 102) engages a length (L. 1) engaged in locking engagement with the receptacle (80; 90; 110) and extending to an opening edge (83; 93; 113) of the receptacle (80; 62; L 72; L 102) which is at most five times, preferably at most three, or at most half as great as the length (L 61; L 71; L 101) of the front Pinabschitts (61; 71; 101), and recording (80; 90; 110) each having a respective length, a lower receiving portion (81; 31; 111) overlapping in locking engagement with the front pin portion (61; 71; 101) and in locking engagement with the rear pin portion (62; 72; 102). has overlapping, the opening edge (83; 93; 113) having the upper receiving portion (82; 92; 112).

Entweder weist der vordere Pinabschnitt (61; 101) an einem äußeren Umfang zur Ver- und Entriegelungsrichtung (± L) eine Neigung (α) auf, die über die gesamte Länge (L61; L101) des vorderen Pinabschnitts (61; 101) so groß ist, dass der Rotor (7) nur durch den Eingriff des vorderen Pinabschnitts (61; 101) nicht blockierbar ist, und der Eingriff des hinteren Pinabschnitts (62; 102) die Blockierung bewirkt,
oder der obere Aufnahmeabschnitt (92) weist an einem inneren Umfang zur Ver- und Entriegelungsrichtung (± L) eine Neigung (β) auf, die über die gesamte Länge (L72) des oberen Aufnahmeabschnitts (92) so groß ist, dass der Rotor (7) nur durch Eingriff des vorderen Pinabschnitts (71) in den oberen Aufnahmeabschnitt (92) nicht blockierbar ist, und der Eingriff des vorderen Pinabschnitts (71) in den unteren Aufnahmeabschnitt (91) die Blockierung bewirkt.

Figure imgaf001
Either the front pin portion (61, 101) has an inclination (α) on an outer circumference of the locking and unlocking direction (± L), which extends over the entire length (L 61 , L 101 ) of the front pin portion (61, 101). is so large that the rotor (7) can not be blocked only by the engagement of the front pin portion (61; 101), and the engagement of the rear pin portion (62; 102) causes the locking,
or the upper receiving portion (92) has an inclination (β) at an inner circumference of the locking and unlocking direction (± L), which is so large over the entire length (L 72 ) of the upper receiving portion (92) that the rotor (7) is not lockable only by engagement of the front pin portion (71) in the upper receiving portion (92), and the engagement of the front pin portion (71) in the lower receiving portion (91) causes the blockage.
Figure imgaf001
EP12156574.1A 2011-02-22 2012-02-22 Cam shaft phase adjuster with improved locking device Not-in-force EP2492459B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110004539 DE102011004539A1 (en) 2011-02-22 2011-02-22 Camshaft phaser with improved locking device

Publications (3)

Publication Number Publication Date
EP2492459A2 EP2492459A2 (en) 2012-08-29
EP2492459A3 true EP2492459A3 (en) 2013-01-23
EP2492459B1 EP2492459B1 (en) 2014-12-10

Family

ID=45656466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12156574.1A Not-in-force EP2492459B1 (en) 2011-02-22 2012-02-22 Cam shaft phase adjuster with improved locking device

Country Status (2)

Country Link
EP (1) EP2492459B1 (en)
DE (1) DE102011004539A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076652B4 (en) 2011-05-27 2017-06-01 Schwäbische Hüttenwerke Automotive GmbH Device for adjusting the relative angular position of nested camshafts
DE102011084059B4 (en) 2011-10-05 2016-12-08 Schwäbische Hüttenwerke Automotive GmbH Control valve with integrated filter and camshaft phaser with the control valve
DE102012213002A1 (en) 2012-07-24 2014-01-30 Schwäbische Hüttenwerke Automotive GmbH Camshaft phaser with sealing sleeve
FR3001255B1 (en) * 2013-01-24 2016-07-29 Delphi Automotive Systems Lux CAMSHAFT DEHASTER
DE102013204869A1 (en) * 2013-03-20 2014-10-09 Schaeffler Technologies Gmbh & Co. Kg Control valve for a central valve and manufacturing method for a control piston of a central valve
DE102013219078B4 (en) * 2013-09-23 2021-02-18 Schaeffler Technologies AG & Co. KG Multi-locking of a camshaft adjuster
DE102013219075B4 (en) * 2013-09-23 2020-11-26 Schaeffler Technologies AG & Co. KG Multi-locking of a camshaft adjuster
DE102014003933A1 (en) 2014-03-20 2015-09-24 Gkn Sinter Metals Engineering Gmbh Variable camshaft adjuster with locking disc, locking disc and method of making the same
CN114396239B (en) * 2022-01-29 2023-06-13 深圳大学 Pressure-maintaining gas-maintaining corer and high-pressure pipe safety pressure relief and sealing drainage transfer pipe sleeve
EP4332356A1 (en) * 2022-09-01 2024-03-06 Mechadyne International Ltd. Mechanical locking pin assembly

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE19825288A1 (en) * 1997-06-05 1998-12-10 Aisin Seiki Valve adjustment control apparatus for IC engine
EP1008729A2 (en) * 1998-12-07 2000-06-14 Mitsubishi Denki Kabushiki Kaisha A vane type hydraulic actuator
DE10150856A1 (en) * 2001-10-15 2003-04-24 Ina Schaeffler Kg Device for changing the timing of gas exchange valves of an internal combustion engine, in particular a rotary piston adjusting device for adjusting the angle of rotation of a camshaft relative to a crankshaft
WO2005049976A1 (en) * 2003-11-21 2005-06-02 Schaeffler Kg Hydraulic camshaft adjuster, and method for the operation thereof

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Publication number Priority date Publication date Assignee Title
GB2302391B (en) 1995-06-14 1999-08-18 Nippon Denso Co Control apparatus for varying the rotational or angular phase between two rotational shafts
EP0806550B2 (en) * 1996-03-28 2008-08-20 Aisin Seiki Kabushiki Kaisha Valve timing control device
DE102004028015A1 (en) 2004-06-08 2006-01-19 Daimlerchrysler Ag Hydraulic rotary motor used in motor vehicle, has blocking device arranged and fitted in taper portion, and led in one rotor through guide for interlocking two rotors together
DE102005004281B3 (en) * 2005-01-28 2006-01-05 Hydraulik-Ring Gmbh Camshaft setter with no-clearance locking for internal combustion engine is in form of slide valve with two sectors, between which power transfer takes place
DE102005034320B4 (en) * 2005-07-22 2017-09-07 Schaeffler Technologies AG & Co. KG Locking device for a camshaft adjuster
DE102005051692A1 (en) 2005-10-28 2007-05-10 Schaeffler Kg Camshaft adjuster with locking device
DE102007020431B4 (en) 2007-04-27 2010-07-22 Schwäbische Hüttenwerke Automotive GmbH & Co. KG Camshaft phaser and vacuum pump for an internal combustion engine
DE102008025506A1 (en) * 2008-05-28 2009-12-03 Schaeffler Kg Camshaft adjusting device for internal combustion engine, has insertion element provided for wear protection, and forming thin separating wall that is arranged between output part and side part

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19825288A1 (en) * 1997-06-05 1998-12-10 Aisin Seiki Valve adjustment control apparatus for IC engine
EP1008729A2 (en) * 1998-12-07 2000-06-14 Mitsubishi Denki Kabushiki Kaisha A vane type hydraulic actuator
DE10150856A1 (en) * 2001-10-15 2003-04-24 Ina Schaeffler Kg Device for changing the timing of gas exchange valves of an internal combustion engine, in particular a rotary piston adjusting device for adjusting the angle of rotation of a camshaft relative to a crankshaft
WO2005049976A1 (en) * 2003-11-21 2005-06-02 Schaeffler Kg Hydraulic camshaft adjuster, and method for the operation thereof

Also Published As

Publication number Publication date
EP2492459A2 (en) 2012-08-29
DE102011004539A1 (en) 2012-08-23
EP2492459B1 (en) 2014-12-10

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