WO2007016986A1 - Dispositif de reglage pour un moteur a combustion interne, en particulier dispositif de reglage d'arbre a cames - Google Patents

Dispositif de reglage pour un moteur a combustion interne, en particulier dispositif de reglage d'arbre a cames Download PDF

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Publication number
WO2007016986A1
WO2007016986A1 PCT/EP2006/005453 EP2006005453W WO2007016986A1 WO 2007016986 A1 WO2007016986 A1 WO 2007016986A1 EP 2006005453 W EP2006005453 W EP 2006005453W WO 2007016986 A1 WO2007016986 A1 WO 2007016986A1
Authority
WO
WIPO (PCT)
Prior art keywords
adjusting device
unit
camshaft
locking
internal combustion
Prior art date
Application number
PCT/EP2006/005453
Other languages
German (de)
English (en)
Inventor
Jens Meintschel
Thomas Stolk
Alexander Von Gaisberg-Helfenberg
Original Assignee
Daimlerchrysler Ag
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 Daimlerchrysler Ag filed Critical Daimlerchrysler Ag
Publication of WO2007016986A1 publication Critical patent/WO2007016986A1/fr

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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
    • F01L1/352—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 bevel or epicyclic 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

Definitions

  • Adjusting device for an internal combustion engine in particular
  • the invention relates to an adjusting device for an internal combustion engine, in particular a camshaft adjusting device, according to the preamble of patent claim 1.
  • a generic camshaft adjusting device with an actuating unit and a locking unit is known.
  • the adjusting unit has an adjusting gear with a stationary gear ratio, which are designed so that a locking position is achieved merely by setting an adjusting.
  • the invention is in particular the object of providing an adjusting device with a large adjustment range, but in which at least one advantageous locking position can always be achieved safely.
  • the object is solved by the features of patent claim 1, wherein further embodiments of the invention can be taken from the subclaims.
  • the invention is based on an adjusting device for an internal combustion engine, in particular a camshaft adjusting device, with an actuating unit and with a locking unit. It is proposed that the setting unit is designed to be capable of rotating in at least one setting direction.
  • “circulable” is to be understood in particular as meaning that a phase angle, in particular a camshaft phase angle, can be adjusted in an adjustment direction by an arbitrary angle, in particular by 360 °, so that from any phase angle by adjustment into one
  • a "shaft phase angle” should in particular be understood to mean a phase angle of a first shaft to a second shaft, as occurs in particular with a camshaft driven by a crankshaft with a camshaft adjusting device.
  • an adjusting device can be achieved with a large adjustment range and it can always be safely achieved structurally simple and inexpensive an advantageous locking position, regardless of a present phase angle in an emergency and independent of a stationary gear ratio of a variable transmission.
  • care must be taken in particular to ensure that sufficient clearance exists between the piston or its upper side and valves to be controlled, so that a collision of the pistons and the valves is always precluded.
  • the adjusting device has a rotor displaceably mounted in the axial direction, whereby the locking unit can be advantageously integrated and additional components, installation space, weight, assembly costs and costs can be saved.
  • the locking unit has at least one electromagnetic actuator which can be integrated in a space-saving manner, in particular if the actuator Device having an electromagnetic brake and / or a E- lektromotor.
  • the electromagnetic actuator may be formed as a separate unit or at least partially embodied in one piece with the electromagnetic brake or the electric motor.
  • an excitation coil of the electromagnetic brake or of the electric motor can be embodied in one piece with an auxiliary exciter coil of the electromagnetic actuator for actuating the locking unit.
  • a locking means of the locking unit is actuated directly and / or indirectly with a hydraulic actuator and / or is coupled to the movement of an actuating means, such as a valve piston, etc.
  • the setting unit has a summation gearbox, in particular a planetary gear mechanism, whereby a large adjustment range can be achieved in a structurally simple manner.
  • the actuating unit also has a brake unit for setting a transmission ratio of the summation gear, a particularly energy-saving adjustment can be made possible.
  • the locking unit is designed to achieve an adjustable shaft phase angle adjustable, which can be made possible during operation and / or principle before commissioning an adaptation to different boundary conditions.
  • the solution according to the invention can be used in all, to those skilled in the appearing appropriate control devices of an internal combustion engine, such as adjusting devices for setting a compression ratio, adjusting devices for adjusting a water pump speed, adjusting devices for adjusting a refrigerant compressor, etc., but particularly advantageous in camshaft staging devices, whereby a camshaft phase angle over a large range adjustable and yet always safe operation of the internal combustion engine is guaranteed.
  • a corresponding adjusting device except in internal combustion engines, also in other machines which appear to be suitable for a person skilled in the art.
  • FIG. 1 shows a schematically illustrated longitudinal section through a camshaft adjusting device with a camshaft in the control mode
  • FIG. 3 shows a development of a locking means formed by a Arretierkulisse with a corresponding locking means in a first locking operation, starting from a first camshaft phase angle
  • FIG. 4 shows the locking means after the first locking operation in the locked position, 3 in a second locking operation, starting from a second camshaft phase angle in a first phase, FIG.
  • FIG. 1 shows a camshaft adjusting device of an internal combustion engine with an adjusting unit 10 for setting a camshaft phase angle of a camshaft 33 and with a locking unit 11.
  • the actuating unit 10 has an electromagnetic brake unit 20 and a summing gear 19 formed by a planetary gear.
  • the electromagnetic brake unit 20 has a stator 21 with a main exciting coil 22 and a rotor 15 which is rotatably mounted in a concentric passage of the stator 21 with its rotor shaft 40 and axially displaceable in the axial direction 13, 14.
  • the rotor 15 has a disk-shaped rotational body 23, on the radially outer edge of a sleeve-shaped body of revolution 24 is arranged from a hysteresis material which encloses a pole structure 25 of the stator 21 and cooperates with this in operation. Furthermore, the rotor 15 is fixedly coupled with its rotor shaft 40 to a sun gear 26 of the summation gear 19 in the circumferential direction and in the axial direction.
  • the locking unit 11 has a drive wheel 17 formed in a sprocket, in the axial direction 13, 14 movably mounted, bolt-shaped first locking means 18.
  • the locking means 18 is loaded with a helical compression spring 27 in the axial direction 13 to the rotation body 23 and has on the side facing the rotation body 23 a helical-headed shape 28 with an enlarged diameter. ser against the remaining locking means 18.
  • the locking unit 11 has a second, formed by a Arretierkulisse with a Arretierausneh- tion 39 locking means 32 which is integrally formed on a side facing the rotor 15 end face of the camshaft 33 ( Figures 1 and 3 to 7).
  • the drive wheel 17 is coupled to a planet carrier 34, are mounted on the planet 35 of the summation 19, which mesh with a coupled to the camshaft 33 ring gear 36.
  • the second locking means 32 may be formed by a separate component from the camshaft 33, which is basically rotatably connected to the camshaft 33, but relative to the adjustment of the locking unit 11 and thus for adjusting the camshaft phase angle in the locked position to the camshaft 33 can be rotated, for example by means of a hydraulic and / or electromagnetic actuator sector.
  • the first locking means 18 in the circumferential direction of the drive wheel 17 could be made relative to the same adjustable.
  • the locking unit 11 has an electromagnetic actuator 16 with an auxiliary excitation coil 29 arranged in the stator 21.
  • the auxiliary excitation coil 29 is arranged radially inside the main excitation coil 22 and acts in the activated state in the axial direction 13 on an integrally formed on the rotary body 23 annular extension 30 which projects in the axial direction 13 in an annular recess 31 of the stator 21, in which also the auxiliary excitation coil 29 is arranged.
  • Figure 1 shows the camshaft actuating device activated in controlled operation, in which the auxiliary excitation coil 29 is energized, so that the rotor 15 is displaced by a magnetic force generated by the auxiliary excitation coil 29 in the axial direction 13 in an end 21 facing the stator, and 22 different braking torques induced by different energizations of the main excitation coil and thus different camshaft phase angle can be adjusted.
  • the rotor 15 is driven by a helical compression spring 37 in the axial direction 14 in its camshaft 33 facing end position and thus the sun gear 26 within the planet 35 (FIGS. Figure 2).
  • the rotational body 23 comes into abutment with an end face of the molding 28 of the first locking means 18 facing it and presses the first locking means 18 against the spring force of the helical compression spring 27 in the axial direction 14 on the end face with the second locking means 32 of the camshaft 33 (FIG. 3).
  • the control unit 10 runs in currentless main excitation coil 22 always only in one direction, in the present case in the direction of adjustment 12.
  • the camshaft phase angle is adjusted towards late, while at an adjustment in one of the adjustment direction 12 opposite adjustment direction 38 of the camshaft phase angle is adjusted in the direction of early.
  • Figures 3 and 4 show a locking operation in which a power supply of the main exciting coil 22 and the auxiliary exciter coil 29 is interrupted, while the camshaft 33 is displaced relative to the ArretierausEnglishung 39 in the direction of adjustment 38 and in the morning direction.
  • the actuator 10 runs in the direction of adjustment 12, namely by the camshaft 33 and the drive wheel 17 rotate relative to each other accordingly.
  • the first locking means 18 engages in the locking recess 39 or in the second locking means 32 and the camshaft phase angle is locked ( Figure 4).
  • Figures 5 to 7 show a locking operation in which a power supply of the main exciting coil 22 and the auxiliary exciter coil 29 is interrupted, while the camshaft 33 is displaced relative to the Arretieraus Principleung 39 in the direction of adjustment 12 and late.
  • the first locking means 18 is located shortly before the locking recess 39 (FIG. 6) and then engages in the locking recess 39 and the camshaft phase angle is locked (FIG. FIG. 7).
  • Corresponding detents can be carried out when the internal combustion engine is running out and / or immediately after starting the internal combustion engine.

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

Abstract

L'invention concerne un dispositif de réglage pour un moteur à combustion interne, en particulier un dispositif de réglage d'arbre à cames, comprenant une unité de réglage (10) et une unité d'arrêt (11). Selon la présente invention, l'unité de réglage (10) est conçue de façon à pouvoir tourner dans au moins un sens de réglage (12).
PCT/EP2006/005453 2005-08-10 2006-06-08 Dispositif de reglage pour un moteur a combustion interne, en particulier dispositif de reglage d'arbre a cames WO2007016986A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510037714 DE102005037714A1 (de) 2005-08-10 2005-08-10 Stellvorrichtung für eine Brennkraftmaschine, insbesondere Nockenwellenstellvorrichtung
DE102005037714.9 2005-08-10

Publications (1)

Publication Number Publication Date
WO2007016986A1 true WO2007016986A1 (fr) 2007-02-15

Family

ID=36933604

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/005453 WO2007016986A1 (fr) 2005-08-10 2006-06-08 Dispositif de reglage pour un moteur a combustion interne, en particulier dispositif de reglage d'arbre a cames

Country Status (2)

Country Link
DE (1) DE102005037714A1 (fr)
WO (1) WO2007016986A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2520772B1 (fr) * 2011-05-02 2016-06-29 MAGNA Powertrain GmbH & Co KG Dispositif de réglage d'arbres à came avec dispositif de fonctionnement en urgence
DE102014010965A1 (de) * 2014-07-23 2016-01-28 Daimler Ag Nockenwellenverstellvorrichtung für eine Brennkraftmaschine eines Kraftfahrzeugs
DE102014112464A1 (de) * 2014-08-29 2016-03-03 Thyssenkrupp Presta Teccenter Ag Verstelleinheit für eine Nockenwelle einer Brennkraftmaschine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5941202A (en) * 1994-11-01 1999-08-24 Hyundai Motor Company Device for varying valve timing
DE10220687A1 (de) * 2002-05-10 2003-11-20 Ina Schaeffler Kg Nockenwellenversteller mit elektrischem Antrieb
EP1416126A1 (fr) * 2002-11-04 2004-05-06 BorgWarner Inc. Système variateur de phase d'arbre à cames avec mécanisme de verrouillage électromagnétique pour actionnement de déphasage et de verrouillage
DE102004007052A1 (de) * 2004-02-13 2005-09-08 Daimlerchrysler Ag Verstelleinrichtung für eine Welle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5941202A (en) * 1994-11-01 1999-08-24 Hyundai Motor Company Device for varying valve timing
DE10220687A1 (de) * 2002-05-10 2003-11-20 Ina Schaeffler Kg Nockenwellenversteller mit elektrischem Antrieb
EP1416126A1 (fr) * 2002-11-04 2004-05-06 BorgWarner Inc. Système variateur de phase d'arbre à cames avec mécanisme de verrouillage électromagnétique pour actionnement de déphasage et de verrouillage
DE102004007052A1 (de) * 2004-02-13 2005-09-08 Daimlerchrysler Ag Verstelleinrichtung für eine Welle

Also Published As

Publication number Publication date
DE102005037714A1 (de) 2007-02-15

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