EP1568855A2 - Déphaseur d'arbre à cames pour moteur de véhicule - Google Patents

Déphaseur d'arbre à cames pour moteur de véhicule Download PDF

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Publication number
EP1568855A2
EP1568855A2 EP05004274A EP05004274A EP1568855A2 EP 1568855 A2 EP1568855 A2 EP 1568855A2 EP 05004274 A EP05004274 A EP 05004274A EP 05004274 A EP05004274 A EP 05004274A EP 1568855 A2 EP1568855 A2 EP 1568855A2
Authority
EP
European Patent Office
Prior art keywords
rotor
stator
side surfaces
sections
rotor blades
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
EP05004274A
Other languages
German (de)
English (en)
Other versions
EP1568855B1 (fr
EP1568855A3 (fr
Inventor
Andreas Knecht
Ralf Naumann
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
Priority claimed from DE102005007942A external-priority patent/DE102005007942B4/de
Application filed by Hydraulik Ring GmbH filed Critical Hydraulik Ring GmbH
Publication of EP1568855A2 publication Critical patent/EP1568855A2/fr
Publication of EP1568855A3 publication Critical patent/EP1568855A3/fr
Application granted granted Critical
Publication of EP1568855B1 publication Critical patent/EP1568855B1/fr
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
    • 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
    • F01L2001/34436—Features or method for avoiding malfunction due to foreign matters in oil

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 serve to open and close the time the gas exchange valves by a relative rotation of the camshaft to move against the crankshaft.
  • the rotor and stator blades lie with their end faces on the respective mating surfaces of the stator or Rotor.
  • hydraulic medium used, which act on the rotor blades from both sides so can be that the rotor is rotated in the desired direction relative to the stator becomes.
  • To reduce the leakage flow of the hydraulic medium between The adjacent surfaces must be the rotor or stator with their faces abut sealingly against the mating surfaces. For this reason the sealing surfaces are formed correspondingly long. This will but reduces the swing angle of the rotor blades.
  • camshaft adjusting devices (DE 101 56 055 C2, DE 102 46 173 A1, DE 102 23 523 A1, US 2003/0217720 A1, US Pat 6 758 177 B1, US 6 637 390 B1, EP 1 143 113 A2) have the rotor blades and thus the stator blades even side surfaces. So that the sealing surfaces At the end faces of the rotor blades are sufficiently long, have the rotor blades a correspondingly large width, but only a limited Swing angle of the rotor allows.
  • Nockenwellenverstellvorraumen in which the Side surfaces of the rotor blade projections are provided (DE 101 34 320 A1), with which the rotor blades in the end position on the side surfaces of the stator vanes issue. By these projections, the pivot angle of the rotor also affected.
  • camshaft adjusting devices are known (US Pat 2003/0056744 A1), in which the free ends of the rotor blades in width are formed tapered. Even with such training is only a limited Swing angle achievable.
  • the invention is based on the object, the generic camshaft adjusting in such a way that with structurally simple training and cost-effective production ensures optimum operation is.
  • the side surfaces of the Rotor blades are concavely curved over part of their length, so that the Rotor blades can be kept narrow. This has the consequence that the Swivel angle of the rotor is increased because the rotor blades due to their small width only at larger swivel angles on the side surfaces of the Stator wings come to the plant.
  • the rotor blades and their end faces transverse to the longitudinal direction of Rotor blade extending sections provided.
  • the stator wings rest In the two end positions of the rotor, in which the rotor blades with their side surfaces on the side surfaces the stator wings rest, are between the sections and the Statorabêten without recesses must be made on the stator, formed chamber-like receiving spaces in which may be in the hydraulic medium or accumulate a pressure chamber existing dirt particles can. This prevents a structurally simple way that the Dirt particles between the end faces of the rotor blades and the counter surface get the stator and thereby affect the rotational movement of the rotor can.
  • the sections of the rotor blades are very easy produce, so that the camshaft adjusting device according to the invention can be manufactured inexpensively.
  • the transition areas are advantageous designed so that in the region of the front side scraping edges are formed, the possibly existing dirt particles simply into the end-side chambers strip.
  • the camshaft adjusting devices are used in internal combustion engines Used motor vehicles. With them, the opening duration of the injectors depending on the power requirement of the internal combustion engine controlled. During engine operation, the camshaft adjustment device the angular position between the crankshaft and the camshaft changed.
  • the camshaft adjusting device has a rotationally fixed with a chain / pulley connected stator 1.
  • a chain / pulley connected stator 1 About the drive wheel and a corresponding Drive element, such as a chain or a belt, is the stator 1 connected in a known manner with a (not shown) crankshaft.
  • the stator 1 has a cylindrical base body 2, of which in a uniform Spacing radially outwardly projecting wings 3 protrude. Neighboring one another Wings each delimit a pressure chamber 4, in the hydraulic medium can be introduced.
  • On the (not shown) camshaft rotatably seated a rotor 5, which has a cylindrical base body 6. With him, the rotor 5 is rotatably mounted on the camshaft.
  • the annular Base 2 of the stator 1 a cylindrical inner wall 8, on which the rotor blades 7 abut sealingly with their free end faces 9.
  • the faces 10 the stator vanes 3 are also sealingly on a cylindrical outer Jacket surface 11 of the rotor body 6 at.
  • the rotor blades 7 have side surfaces 12 and 13, which in the two end positions to corresponding Side surfaces 14, 15 of the stator 3 abut.
  • an end position of the rotor 5 is the Pressure medium in the pressure chamber 4a pressurized while the Pressure chamber 4b is relieved to the tank. If the rotor 5 from this end position Turned clockwise relative to the stator 1, the Pressure chamber 4b set under pressure, while the pressure chamber 4a depressurized becomes. Then the rotor 5 can be rotated until the rotor blades 7 with the side surfaces 12 on the side surfaces 14 of the stator 3 issue. The rotor 5 can also be brought into an intermediate position, wherein the rotor blades 7 are pressurized from both sides.
  • the contact surfaces 8, 9; 10, 11; 12, 13 and 14, 15 of the stator 1 and the rotor 5 are processed properly to prevent the rotor. 5 clamped against the stator 1.
  • dirt particles in all embodiments radially outer dirt receiving chambers 16, 17 formed. They are by a certain geometric training the rotor blade formed in the region of its radially outer edges.
  • the side surfaces 12, 13 of the rotor blades 7 are connected to the end faces 9 formed curved with a large radius of curvature. About a short radial length, the side surfaces 12, 13 are initially bent outward, so that the width of the rotor blades 7 initially increases. The side surfaces 12, 13 are then bent inwards, so that the width of the rotor blades 7 decreases radially inward.
  • a distance from the lateral surface 11 of the rotor body 6 go over the curved side surface sections over a circumferential shoulder surface 32, 33 parallel to one another Side surface portions 34, 35 over, perpendicular to the lateral surface 11th shoot the rotor body 6.
  • the shoulder surfaces 32, 33 are respectively directed in the direction of the adjacent stator 3 and lie at the same height. In the area of the side surface portions 34, 35 are the Rotor blades 7 narrower than in the region of their end faces.
  • the side surfaces 14, 15 of the stator vanes 3 are on the side surfaces 12, 13th the rotor blade 7 adapted so that they in the end position of the rotor. 5 lie flat against the side surfaces 14, 15 of the stator 3.
  • the inner wall 8 of the stator main body 2 is continuously curved in the side surfaces 14, 15 of the stator 3 via.
  • the adjoining the inner wall 8 Side surface sections are curved outwards and go over circumferentially extending shoulder surfaces 30, 31 in parallel to one another lying side surface portions 36, 37 over, passing through the front side 10 of the stator 3 are connected to each other.
  • the shoulder surfaces 30, 31 extend in the circumferential direction inward, are on the same Height and are the same width as the shoulder surfaces 31, 22 of the rotor blades.
  • the side surface portions 36, 37 are the same length in the radial direction as the Side surface portions 34, 35 of the rotor blades. 7
  • stator and the rotor blades 3, 7 are mirror-symmetrical in all embodiments formed to their respective Axialffenebene.
  • the side surfaces 12, 13 of the rotor blades go 7 via rounded portions 18, 19 in the end faces 9 via.
  • the radius of curvature of the sections 18, 19 is smaller than the radius of curvature the portions 20, 21, with which the inner wall 8 of the stator 2 in the side surfaces 14, 15 of the stator 3 passes. This will be in the end position of the rotor 5 between the stator-side sections 20, 21st and the rotor-side sections 18, 19, the receptacles 16 and 17 are formed. They are, seen in axial view, sickle-shaped.
  • the side surfaces 12, 13 of the rotor blades 7 are at the transition to the end faces 9 with rectangular recesses 22, 23 provided by the right angle mutually lying, shoulder surface forming portions 24, 25, 28, 29 be limited.
  • the circumferentially extending portions 28, 29 close to the curved side surfaces 12, 13 and the radially lying Sections 24, 25 on the end faces 9 of the rotor blades 7 at.
  • the rotor blades 7 have chamfered Sections 18, 19.
  • the straight sections 18, 19 connect the side surfaces 12, 13 with the end faces 9 of the rotor blades 7 and converge in the direction of the end faces 9.
  • the sections 18, 19 In the respective end position of the rotor blades 7 limit the sections 18, 19 with the rounded, to the Corners lying areas 20, 21 of the stator 1, the receptacles 16, 17th
  • Fig. 4 go in the circumferential direction Sections 28, 29 of the rotor blades 7 continuously curved in the side surfaces 12, 13 about.
  • the radially extending portions 24, 25 open into the front side 9 of the rotor blades 7.
  • the sections 24, 25, 28, 29 and the rounded Areas 20, 21 of the stator 1 limit in the respective stop position the rotor blade 7, the receptacles 16, 17th
  • the stator 1 and the rotor 5 may be made of plastic or metallic Material, in particular light metal, preferably aluminum, exist.
  • the stator 1 and the rotor 5 may also be different Materials exist.

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)
EP05004274A 2004-02-27 2005-02-28 Déphaseur d'arbre à cames pour moteur de véhicule Expired - Lifetime EP1568855B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102004010829 2004-02-27
DE102004010829 2004-02-27
DE102005007942 2005-02-22
DE102005007942A DE102005007942B4 (de) 2004-02-27 2005-02-22 Nockenwellenverstelleinrichtung für Brennkraftmaschinen von Kraftfahrzeugen

Publications (3)

Publication Number Publication Date
EP1568855A2 true EP1568855A2 (fr) 2005-08-31
EP1568855A3 EP1568855A3 (fr) 2006-04-12
EP1568855B1 EP1568855B1 (fr) 2007-03-07

Family

ID=34751407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05004274A Expired - Lifetime EP1568855B1 (fr) 2004-02-27 2005-02-28 Déphaseur d'arbre à cames pour moteur de véhicule

Country Status (3)

Country Link
EP (1) EP1568855B1 (fr)
AT (1) ATE356280T1 (fr)
DE (1) DE502005000430D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010012652B4 (de) 2010-03-25 2018-05-17 Hilite Germany Gmbh Schwenkmotornockenwellenversteller mit einem Rotor

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1143113A2 (fr) 2000-03-01 2001-10-10 Toyota Jidosha Kabushiki Kaisha Déphaseur d'un arbre à cames et procédé de contrôle d'un moteur à combustion
DE10134320A1 (de) 2001-07-14 2003-01-23 Ina Schaeffler Kg Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine, insbesondere Rotationskolben-Verstelleinrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle
US20030056744A1 (en) 2001-07-25 2003-03-27 Goichi Katayama Four cycle engine for marine drive
DE10246173A1 (de) 2001-10-03 2003-04-17 Denso Corp Steuerung zur variablen Ventilzeitabstimmung
DE10223523A1 (de) 2001-10-16 2003-04-24 Mitsubishi Electric Corp Vorrichtung zur Steuerung der Ventiltaktung
US6637390B1 (en) 2002-05-23 2003-10-28 Delphi Technologies, Inc. Apparatus and method for measuring cam phaser locking pin position
US20030217720A1 (en) 2002-05-21 2003-11-27 Pierik Ronald J. Camshaft phaser having designated contact vane
DE10156055C2 (de) 2001-03-19 2003-12-04 Mitsubishi Electric Corp Ventileinstellsteuervorrichtung
US6758177B1 (en) 2003-02-24 2004-07-06 Delphi Technologies, Inc. Method and apparatus to control a variable valve system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10238319A (ja) * 1997-02-26 1998-09-08 Toyota Motor Corp 内燃機関のバルブタイミング制御装置
JP2001055914A (ja) * 1999-08-17 2001-02-27 Unisia Jecs Corp 内燃機関のバルブタイミング制御装置
DE19959187B4 (de) * 1999-12-08 2008-12-11 Schaeffler Kg Vorrichtung zur Ver- und Entriegelung eines Rotationskolbenverstellers
DE10020120A1 (de) * 2000-04-22 2001-10-25 Schaeffler Waelzlager Ohg Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine, insbesondere hydraulische Nockenwellen-Verstelleinrichtung in Rotationskolbenbauart
DE10234867A1 (de) * 2002-07-31 2004-02-12 Hydraulik-Ring Gmbh Schwenkmotor für eine Nockenwellenverstelleinrichtung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1143113A2 (fr) 2000-03-01 2001-10-10 Toyota Jidosha Kabushiki Kaisha Déphaseur d'un arbre à cames et procédé de contrôle d'un moteur à combustion
DE10156055C2 (de) 2001-03-19 2003-12-04 Mitsubishi Electric Corp Ventileinstellsteuervorrichtung
DE10134320A1 (de) 2001-07-14 2003-01-23 Ina Schaeffler Kg Vorrichtung zum Verändern der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine, insbesondere Rotationskolben-Verstelleinrichtung zur Drehwinkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle
US20030056744A1 (en) 2001-07-25 2003-03-27 Goichi Katayama Four cycle engine for marine drive
DE10246173A1 (de) 2001-10-03 2003-04-17 Denso Corp Steuerung zur variablen Ventilzeitabstimmung
DE10223523A1 (de) 2001-10-16 2003-04-24 Mitsubishi Electric Corp Vorrichtung zur Steuerung der Ventiltaktung
US20030217720A1 (en) 2002-05-21 2003-11-27 Pierik Ronald J. Camshaft phaser having designated contact vane
US6637390B1 (en) 2002-05-23 2003-10-28 Delphi Technologies, Inc. Apparatus and method for measuring cam phaser locking pin position
US6758177B1 (en) 2003-02-24 2004-07-06 Delphi Technologies, Inc. Method and apparatus to control a variable valve system

Also Published As

Publication number Publication date
DE502005000430D1 (de) 2007-04-19
ATE356280T1 (de) 2007-03-15
EP1568855B1 (fr) 2007-03-07
EP1568855A3 (fr) 2006-04-12

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