EP1485581B1 - Nockenwellenversteller für eine brennkraftmaschine - Google Patents

Nockenwellenversteller für eine brennkraftmaschine Download PDF

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Publication number
EP1485581B1
EP1485581B1 EP03744333A EP03744333A EP1485581B1 EP 1485581 B1 EP1485581 B1 EP 1485581B1 EP 03744333 A EP03744333 A EP 03744333A EP 03744333 A EP03744333 A EP 03744333A EP 1485581 B1 EP1485581 B1 EP 1485581B1
Authority
EP
European Patent Office
Prior art keywords
guide sleeve
camshaft
control piston
camshaft adjuster
adjuster according
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.)
Expired - Lifetime
Application number
EP03744333A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1485581A1 (de
Inventor
Christian Haser
Kai Lehmann
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.)
Mercedes Benz Group AG
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 EP1485581A1 publication Critical patent/EP1485581A1/de
Application granted granted Critical
Publication of EP1485581B1 publication Critical patent/EP1485581B1/de
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
    • 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
    • F01L1/34403—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 helically teethed sleeve or gear moving axially between crankshaft and camshaft
    • F01L1/34406—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 helically teethed sleeve or gear moving axially between crankshaft and camshaft the helically teethed sleeve being located in the camshaft driving pulley
    • 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
    • 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
    • F01L2001/3443—Solenoid driven 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
    • F01L2001/34426—Oil control valves
    • F01L2001/34433—Location oil control valves

Definitions

  • the invention relates to a camshaft adjuster according to the preamble of claim 1.
  • a generic camshaft adjuster for an internal combustion engine with a hydraulic control piston is known.
  • an actuating unit for angular adjustment of a camshaft is controllable, wherein the actuator comprises a rotatably connected to the camshaft, formed by an impeller inner body and a camshaft rotatably mounted, formed by a sprocket outer body, via which a drive connection from the crankshaft to the camshaft runs.
  • the control piston is slidably guided in a receptacle of a central clamping screw in the axial direction to the central clamping screw. About the central clamping screw of the inner body is clamped axially against the camshaft.
  • the invention is in particular the object of providing a generic camshaft adjuster for an internal combustion engine with reduced tolerances while reducing manufacturing costs. It is achieved according to the invention by the features of claim 1. Further embodiments emerge from the subclaims.
  • the invention relates to a camshaft adjuster for an internal combustion engine having a hydraulic control piston, with which an actuating unit for angular displacement of a camshaft is controllable, wherein the control piston is guided in a separate guide sleeve and wherein the guide sleeve is inserted and held in a component receiving the guide sleeve.
  • the guide sleeve is pressed into the component.
  • the guide sleeve can be designed specifically for its function and caused by other functions disturbances can be avoided.
  • Control edges can be structurally simple, inexpensive and very precisely introduced to the guide sleeve, which reduces overall tolerances and costs can be saved. It may be a function decoupling and with the function decoupling a modularization and unification can be achieved, e.g. a plurality of at least similar guide sleeves can be used for various internal combustion engines.
  • the guide sleeve is arranged in the camshaft, a simple oil guide can be achieved and, in particular, existing oil guides can be used substantially unchanged. Furthermore, can be achieved by the arrangement of the guide sleeve in the camshaft, an advantageous precise position assignment of the control piston to the camshaft. However, the guide sleeve can also be arranged in an impeller, a central clamping screw or other, the expert appears reasonable sense component.
  • the guide sleeve is held by a press connection in a component receiving the guide sleeve. Since the guide sleeve is pressed or the guide sleeve is held by a press connection, the guide sleeve can be attached inexpensively, and in particular the attachment can be advantageously integrated into existing assembly processes of internal combustion engines. Particularly advantageously, the press connection is produced by a heat-related shrinkage process.
  • control piston is held captive in the guide sleeve via a securing element.
  • the guide sleeve and the control piston can be advantageously pre-assembled as a unit, checked for their function, transported and mounted.
  • Fig. 1 shows a section of an internal combustion engine 20 of a motor vehicle, not shown, with a camshaft adjuster according to the invention.
  • the camshaft adjuster has a hydraulic control piston 10 with which an actuating unit for angular adjustment of a camshaft 16 can be controlled.
  • the control piston 10 is guided in a separate guide sleeve 11, which has control edges formed by four radial bores 12, 13, 14, 15, wherein the radial bores 12, 15 are arranged offset in the circumferential direction to the radial bores 13, 14.
  • the guide sleeve 11 is inserted or pressed in a concentric, extending from one end of the camshaft 16 in the axial direction recess 21.
  • the camshaft 16 is heated, wherein the camshaft 16 and thus the recess 21 expands.
  • the guide sleeve 11 is inserted in the heated state in the recess 21, until it strikes with its camshaft 16 facing end face at the bottom of the recess 21.
  • the recess 21 narrows, and the guide sleeve 11 is pressed into the recess 21.
  • the camshaft 16 is mounted on a main bearing 22 in a cylinder head 23 of the internal combustion engine 20 and is fixed in the axial direction to the control piston 10 via a screwed to the cylinder head 23 cover 24.
  • pressure medium via a radial bore 25 and an axial bore 26 in the camshaft 16 and via interfaces 17, 55 between the guide sleeve 11 and the camshaft 16, via a extending in the axial direction, not shown channel and about an annular groove 47, radial bores 27, 28 of the guide sleeve 11 is supplied, via which the pressure medium is guided in an annular space formed by an annular groove 29 of the control piston 10 and the guide sleeve 11.
  • the channel not shown in detail and the annular groove 47 are formed by introduced into the guide sleeve 11 recesses.
  • helical compression spring 19 On one of the camshaft 16 facing side of the control piston 10 acting on the control piston 10 helical compression spring 19 is arranged, which faces away from the control piston 10 end at a bottom of the side of the camshaft 16 closed guide sleeve 11 and with its the control piston 10 facing End acts on the control piston 10.
  • a solenoid 30 formed by a pressure magnet 30 is arranged in a stationary to the cylinder head housing 36, via which the control piston 10 against the spring force of the helical compression spring 19 is adjustable.
  • a non-illustrated contact point between the plunger of the pressure magnet and the control piston which transmits the actuating forces of the pressure magnet on the control piston in a known manner.
  • the control piston 10 is secured in the guide sleeve 11 via a securing ring 18 in the direction away from the helical compression spring 19.
  • a disc-shaped cover 32 On the side facing the actuating magnet 30 side of the housing 31 is a disc-shaped cover 32 with a central recess for the guide sleeve 11 and on the actuating magnet 30 facing away from the side of the housing 31 is rotatably mounted on the camshaft 16 sprocket 33 is arranged, via which the camshaft 16 is in driving connection with a crankshaft, not shown.
  • the lid 32, the housing 31 and the sprocket 33 are clamped over itself in the axial direction extending clamping screws 34 and form a rotatably mounted on the camshaft 16 unit.
  • the lid 32, the housing 31 and the sprocket 33 include an annular space in which an impeller 35 is arranged.
  • the impeller 35 is pressed against rotation on the camshaft 16 and has in the radial direction outwardly extending wings, not shown.
  • the wings of the impeller 35 form with not shown, molded onto the housing 31, radially inwardly extending wings pressure chambers.
  • the control piston 10 is displaced by the helical compression spring 19 into its first end position facing away from the camshaft 16.
  • the annular groove 29 of the control piston 10 is located radially within the radial bores 12, 15. Via the radial bores 12, 15, via an interface 54 between the guide sleeve 11 and the camshaft 16, via an introduced on the outer circumference of the guide sleeve 11 annular groove 48 and over Radial bores 37, 38 in the camshaft 16 and radial bores 49, 50 in an inner ring of the impeller 35 first pressure chambers are acted upon by pressure medium, so that the sprocket 33 is fixed relative to the camshaft 16 in a first rotational position.
  • the annular groove 29 of the control piston 10 comes to lie radially within the radial bores 13, 14.

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)
EP03744333A 2002-03-15 2003-02-21 Nockenwellenversteller für eine brennkraftmaschine Expired - Lifetime EP1485581B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10211468A DE10211468A1 (de) 2002-03-15 2002-03-15 Nockenwellenversteller für eine Brennkraftmaschine
DE10211468 2002-03-15
PCT/EP2003/001772 WO2003078804A1 (de) 2002-03-15 2003-02-21 Nockenwellenversteller für eine brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1485581A1 EP1485581A1 (de) 2004-12-15
EP1485581B1 true EP1485581B1 (de) 2006-04-12

Family

ID=27771341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03744333A Expired - Lifetime EP1485581B1 (de) 2002-03-15 2003-02-21 Nockenwellenversteller für eine brennkraftmaschine

Country Status (5)

Country Link
US (1) US20050051123A1 (ja)
EP (1) EP1485581B1 (ja)
JP (1) JP2005530078A (ja)
DE (2) DE10211468A1 (ja)
WO (1) WO2003078804A1 (ja)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10346448B4 (de) 2003-10-07 2017-03-30 Daimler Ag Nockenwellenversteller für eine Brennkraftmaschine
DE102004005795A1 (de) * 2004-02-06 2005-08-25 Daimlerchrysler Ag Vorrichtung zur Winkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine
DE502005010369D1 (de) * 2004-05-14 2010-11-25 Schaeffler Kg Nockenwellenversteller
US7475660B2 (en) * 2004-06-02 2009-01-13 Ina-Schaeffler Kg Camshaft adjuster
DE102004038695A1 (de) * 2004-08-10 2006-02-23 Ina-Schaeffler Kg Nockenwellentrieb mit einem Nockenwellenversteller
DE102004058767A1 (de) * 2004-12-07 2006-06-22 Schaeffler Kg Steuerventil
DE102005026247A1 (de) * 2005-06-08 2006-12-14 Schaeffler Kg Nockenwellentrieb für eine Brennkraftmaschine eines Kraftfahrzeugs
DE102005053187A1 (de) * 2005-11-08 2007-05-10 Daimlerchrysler Ag Stellvorrichtung für eine Brennkraftmaschine
DE202006020694U1 (de) * 2006-09-07 2009-06-18 Mahle International Gmbh Verstellbare Nockenwelle
DE102007019923A1 (de) * 2007-04-27 2008-10-30 Schaeffler Kg Nockenwellenverstellsystem
DE102007058491A1 (de) * 2007-12-05 2009-06-10 Schaeffler Kg Vorrichtung zur variablen Einstellung der Steuerzeiten von Gaswechselventilen einer Brennkraftmaschine
DE102009022869A1 (de) * 2009-05-27 2010-12-09 Hydraulik-Ring Gmbh Flügelzellennockenwellenverstellersystem
DE102009039384A1 (de) 2009-08-29 2011-03-03 Schaeffler Technologies Gmbh & Co. Kg Steuerventil
DE102009039385A1 (de) 2009-08-29 2011-03-03 Schaeffler Technologies Gmbh & Co. Kg Steuerventil
DE102009050779B4 (de) * 2009-10-27 2016-05-04 Hilite Germany Gmbh Schwenkmotornockenwellenversteller mit einer Reibscheibe und Montageverfahren
DE102009051519A1 (de) * 2009-10-31 2011-05-05 Schaeffler Technologies Gmbh & Co. Kg Nockenwellenverstellanordnung
DE102009052841A1 (de) * 2009-11-13 2011-05-19 Hydraulik-Ring Gmbh Nockenwelleneinsatz
DE102010045358A1 (de) 2010-04-10 2011-10-13 Hydraulik-Ring Gmbh Schwenkmotornockenwellenversteller mit einem Hydraulikventil
DE102010019005B4 (de) 2010-05-03 2017-03-23 Hilite Germany Gmbh Schwenkmotorversteller
JP5182326B2 (ja) 2010-06-09 2013-04-17 トヨタ自動車株式会社 流量制御弁
DE102010061337B4 (de) 2010-12-20 2015-07-09 Hilite Germany Gmbh Hydraulikventil für einen Schwenkmotorversteller
DE102011003556B4 (de) 2011-02-03 2022-03-24 Schaeffler Technologies AG & Co. KG Vorrichtung zur Veränderung der relativen Winkellage einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine
DE102013209166A1 (de) * 2013-05-17 2014-11-20 Schaeffler Technologies Gmbh & Co. Kg Zentralventil mit einem Steuerkolben zur Steuerung der Ölversorgung für einen Nockenwellenversteller

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107804A (en) * 1989-10-16 1992-04-28 Borg-Warner Automotive Transmission & Engine Components Corporation Variable camshaft timing for internal combustion engine
DE4007181A1 (de) * 1990-03-07 1991-09-12 Audi Ag Antriebsvorrichtung fuer eine nockenwelle
DE4116152A1 (de) * 1991-05-17 1992-11-19 Bosch Gmbh Robert Einrichtung zur verstellung der drehwinkelzuordnung einer nockenwelle zu ihrem antriebselement
DE19817319C2 (de) * 1998-04-18 2001-12-06 Daimler Chrysler Ag Nockenwellenversteller für Brennkraftmaschinen
JP3700821B2 (ja) * 1999-05-14 2005-09-28 本田技研工業株式会社 内燃機関の制御装置
US6477999B1 (en) * 1999-12-28 2002-11-12 Borgwarner Inc. Vane-type hydraulic variable camshaft timing system with lockout feature
DE10029261A1 (de) * 2000-06-14 2001-12-20 Deutz Ag Nockenwellenverschwenkeinrichtung

Also Published As

Publication number Publication date
DE50302961D1 (de) 2006-05-24
WO2003078804A1 (de) 2003-09-25
US20050051123A1 (en) 2005-03-10
DE10211468A1 (de) 2003-09-25
EP1485581A1 (de) 2004-12-15
JP2005530078A (ja) 2005-10-06

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