EP0924391A2 - Dispositif pour changer le calage angulaire d'un arbre par rapport à une roue d'entraínement - Google Patents

Dispositif pour changer le calage angulaire d'un arbre par rapport à une roue d'entraínement Download PDF

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Publication number
EP0924391A2
EP0924391A2 EP98121878A EP98121878A EP0924391A2 EP 0924391 A2 EP0924391 A2 EP 0924391A2 EP 98121878 A EP98121878 A EP 98121878A EP 98121878 A EP98121878 A EP 98121878A EP 0924391 A2 EP0924391 A2 EP 0924391A2
Authority
EP
European Patent Office
Prior art keywords
pressure
changing
shaft
control
rotational position
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.)
Withdrawn
Application number
EP98121878A
Other languages
German (de)
English (en)
Other versions
EP0924391A3 (fr
Inventor
Alfred Trzmiel
Wolfgang Stephan
Axel-Willi Jochim
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.)
Dr Ing HCF Porsche AG
Hilite Germany GmbH
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG, Hydraulik Ring GmbH filed Critical Dr Ing HCF Porsche AG
Publication of EP0924391A2 publication Critical patent/EP0924391A2/fr
Publication of EP0924391A3 publication Critical patent/EP0924391A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • F01L2001/34423—Details relating to the hydraulic feeding circuit
    • F01L2001/34426—Oil control valves

Definitions

  • the invention relates to a device for the relative change in the rotational position of a shaft Drive wheel, in particular a camshaft of an internal combustion engine, according to the Genus of the main claim.
  • Such a device is known for example from WO 95/31633.
  • This cell wheel is over a Chain or belt drive driven by the crankshaft of an internal combustion engine.
  • the pressurization of the respective pressure rooms takes place via an as 4/3-way valve designed control valve, via which the pressure chambers in dependence of the desired change in rotational position with a pressure medium pump or a Pressure medium tank are connected. This leads to one of these control valves Pressure line to all pressure chambers acting in the same direction.
  • a hydraulically unlockable check valve is arranged, whose locking effect can be canceled by the pressure in the other pressure line.
  • These check valves can be used in the neutral position of the control valve Neglecting the leakage losses a hydraulic inhibition of the two relatively rotatable components can be achieved.
  • such a facility is relatively complex. In addition, it may be due to the adjustment process the almost unthrottled connection of one pressure chamber group to the Pressure medium tank for unwanted position deviations and inaccurate or fluctuating adjustment processes come.
  • the invention is based on the object, the generic Device for changing the relative rotational position of a shaft to the drive wheel in this regard to improve that this is simple and inexpensive and a fluctuation-free change of the rotation position enables. It should focus on the Use of complex and expensive control valves can be dispensed with.
  • a secure fixation of the set relative rotational position in the neutral position of the two control valves can be achieved in an advantageous and simple manner by into each of the control lines or pressure lines towards the adjustment device opening check valve is arranged.
  • a backflow of pressure medium from the Pressure chambers are also effective in the neutral position of the two control valves prevented.
  • a controlled change in position of the two components that can be rotated relative to one another can be achieved in a particularly simple and advantageous manner if the two Control valves as clocked valves, in particular as pulse width modulated valves are trained.
  • 1 shows the camshaft of an internal combustion engine the free end of which the inner part 2 of an adjusting device 3 is arranged in a rotationally fixed manner.
  • This inner part 2 is arranged in this embodiment with four radially Provide webs 4a to 4c.
  • the inner part is surrounded by a cellular wheel 5, which on way not shown connected to the crankshaft of the internal combustion engine is and therefore acts as a drive wheel.
  • the cellular wheel 5 is with four inwards projecting radial webs 6a to 6d, between which four cells are formed are, which by the webs of the inner part in two pressure spaces 7a to 7d and 8a are divided up to 8d.
  • These pressure rooms are designed so that the sum of the hydraulically effective surfaces in both adjustment directions is the same.
  • the pressure rooms 7a to 7d are each with a radial bore 9a to 9d in the inner part Annular groove 10 connected to the camshaft 1.
  • the pressure spaces 8a to 8d are in analogously via radial bores 11a to 11d in the inner part with a second one Annular groove 12 connected in the camshaft.
  • the two ring grooves 10 and 12 are each connected to a pressure channel 13 or 14 running in the camshaft. These pressure channels 13 and 14 are in a manner known per se Camshaft bearings 15 each connected to a control line 16 or 17.
  • the two control lines 16 and 17 are one with the pressure connection 18 Pressure medium pump 19 connected, for example, the oil pump Internal combustion engine can be.
  • Check valve 20, 21 arranged in the direction of the pressure medium pump 19th to the adjustment device 3 opens.
  • Each of the two check valves 20 and 21 is a throttle element 22 or 23 in the respective control line 16 or 17 downstream. Downstream of the throttle elements 22 and 23 is each of the two Control lines 16 and 17 connected to a bypass line 24 and 25, respectively each lead a control valve 26 or 27.
  • the two control valves 26 and 27 are in this embodiment as clocked, pulse width modulated 2/2-way valves educated. In the switching position I of the two control valves 26 and 27 are the assigned bypass lines 24 and 25 respectively closed at the ends and in the Switch position II each connected to a pressure medium tank 28.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Motor Power Transmission Devices (AREA)
EP98121878A 1997-12-17 1998-11-18 Dispositif pour changer le calage angulaire d'un arbre par rapport à une roue d'entraínement Withdrawn EP0924391A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19756017A DE19756017A1 (de) 1997-12-17 1997-12-17 Einrichtung zur relativen Drehlagenänderung einer Welle zum Antriebsrad
DE19756017 1997-12-17

Publications (2)

Publication Number Publication Date
EP0924391A2 true EP0924391A2 (fr) 1999-06-23
EP0924391A3 EP0924391A3 (fr) 1999-08-04

Family

ID=7852186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121878A Withdrawn EP0924391A3 (fr) 1997-12-17 1998-11-18 Dispositif pour changer le calage angulaire d'un arbre par rapport à une roue d'entraínement

Country Status (4)

Country Link
EP (1) EP0924391A3 (fr)
JP (1) JPH11241609A (fr)
KR (1) KR19990063115A (fr)
DE (1) DE19756017A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6263846B1 (en) 1999-12-28 2001-07-24 Borgwarner Inc. Control valve strategy for vane-type variable camshaft timing system
US6382155B2 (en) 1999-06-30 2002-05-07 Borgwarner Inc. Variable valve timing with actuator locking for internal combustion engine
US6477999B1 (en) 1999-12-28 2002-11-12 Borgwarner Inc. Vane-type hydraulic variable camshaft timing system with lockout feature
EP1355047A3 (fr) * 2002-04-19 2008-02-06 BorgWarner Inc. Déphaseur d'arbre à cames
WO2011147741A1 (fr) * 2010-05-25 2011-12-01 Schaeffler Technologies Gmbh & Co. Kg Dispositif de réglage d'arbre à cames à actionnement hydraulique

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10029261A1 (de) * 2000-06-14 2001-12-20 Deutz Ag Nockenwellenverschwenkeinrichtung
JP4487449B2 (ja) 2001-06-28 2010-06-23 アイシン精機株式会社 弁開閉時期制御装置
DE20114466U1 (de) * 2001-09-01 2002-01-03 Eto Magnetic Kg Elektromagnetische Stellvorrichtung
JP2008303754A (ja) * 2007-06-06 2008-12-18 Denso Corp 内燃機関の制御装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995031633A1 (fr) 1994-05-13 1995-11-23 Nippondenso Co., Ltd. Regulateur de phase rotative du type a aubes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825326A1 (de) * 1978-06-09 1979-12-20 Daimler Benz Ag Drehmomentuebertragungseinrichtung
DE3930157A1 (de) * 1989-09-09 1991-03-21 Bosch Gmbh Robert Einrichtung zur verstellung der drehwinkelzuordnung einer nockenwelle zu ihrem antriebselement
DE4116152A1 (de) * 1991-05-17 1992-11-19 Bosch Gmbh Robert Einrichtung zur verstellung der drehwinkelzuordnung einer nockenwelle zu ihrem antriebselement
DE4216791A1 (de) * 1992-05-21 1993-11-25 Teves Gmbh Alfred Variable Nockenwellenverstellung mit proportionalem Lageregler
DE4224653A1 (de) * 1992-07-25 1994-01-27 Bosch Gmbh Robert Elektrohydraulische Stelleinrichtung
DE4229202A1 (de) * 1992-09-02 1994-03-03 Schaeffler Waelzlager Kg Vorrichtung für eine stufenlose Winkelverstellung
DE4237193A1 (de) * 1992-11-04 1994-05-05 Bosch Gmbh Robert Verfahren zur Ansteuerung einer Einrichtung zum relativen Verdrehen einer Welle und Einrichtung zum relativen Verdrehen der Welle einer Brennkraftmaschine
JPH07238806A (ja) * 1994-02-25 1995-09-12 Ofic Co 可変バルブタイミング装置
EP1128028B8 (fr) * 1996-03-28 2012-11-07 Aisin Seiki Kabushiki Kaisha Dispositif de commande du calage des soupapes

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995031633A1 (fr) 1994-05-13 1995-11-23 Nippondenso Co., Ltd. Regulateur de phase rotative du type a aubes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6382155B2 (en) 1999-06-30 2002-05-07 Borgwarner Inc. Variable valve timing with actuator locking for internal combustion engine
US6263846B1 (en) 1999-12-28 2001-07-24 Borgwarner Inc. Control valve strategy for vane-type variable camshaft timing system
US6477999B1 (en) 1999-12-28 2002-11-12 Borgwarner Inc. Vane-type hydraulic variable camshaft timing system with lockout feature
EP1355047A3 (fr) * 2002-04-19 2008-02-06 BorgWarner Inc. Déphaseur d'arbre à cames
WO2011147741A1 (fr) * 2010-05-25 2011-12-01 Schaeffler Technologies Gmbh & Co. Kg Dispositif de réglage d'arbre à cames à actionnement hydraulique
CN102918234A (zh) * 2010-05-25 2013-02-06 谢夫勒科技股份两合公司 液压操纵的凸轮轴调节设备
US8733308B2 (en) 2010-05-25 2014-05-27 Schaeffler Technologies Gmbh & Co. Kg Hydraulically actuated camshaft adjusting device
CN102918234B (zh) * 2010-05-25 2015-04-01 谢夫勒科技股份两合公司 液压操纵的凸轮轴调节设备

Also Published As

Publication number Publication date
EP0924391A3 (fr) 1999-08-04
KR19990063115A (ko) 1999-07-26
JPH11241609A (ja) 1999-09-07
DE19756017A1 (de) 1999-06-24

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