EP1143118B1 - Dispositif pour varier la levée d'une soupape dans la culasse d'un moteur à combustion interne - Google Patents

Dispositif pour varier la levée d'une soupape dans la culasse d'un moteur à combustion interne Download PDF

Info

Publication number
EP1143118B1
EP1143118B1 EP01106205A EP01106205A EP1143118B1 EP 1143118 B1 EP1143118 B1 EP 1143118B1 EP 01106205 A EP01106205 A EP 01106205A EP 01106205 A EP01106205 A EP 01106205A EP 1143118 B1 EP1143118 B1 EP 1143118B1
Authority
EP
European Patent Office
Prior art keywords
lever
cylinder head
cam
control shaft
stroke
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
EP01106205A
Other languages
German (de)
English (en)
Other versions
EP1143118A3 (fr
EP1143118A2 (fr
Inventor
Werner Rottstegge
Andreas Wolf
Johannes Meyer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1143118A2 publication Critical patent/EP1143118A2/fr
Publication of EP1143118A3 publication Critical patent/EP1143118A3/fr
Application granted granted Critical
Publication of EP1143118B1 publication Critical patent/EP1143118B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • 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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
    • F01L2013/0068—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot with an oscillating cam acting on the valve of the "BMW-Valvetronic" type

Definitions

  • the invention relates to a preamble of claim 1 Device for stroke adjustment of a gas exchange valve in the cylinder head Internal combustion engine, wherein a cooperating with the gas exchange valve
  • the transmission element is in line contact with an idle stroke curve and one Stroke curve control path on one lever, the other Lever end in line contact is with a cam on one in the cylinder head controlled rotatable and fixable control shaft, one in the cylinder head for Control shaft camshaft arranged in parallel via a cam on a cam track acts on the swivel lever to actuate the gas exchange valve.
  • Such a device is known for example from DE 42 23 172 C1.
  • the to achieve a variable stroke - zero stroke to full stroke - from Cam of a camshaft swiveled pivot lever in its free Lever end adjacent to the line contact with one used for stroke adjustment Cam is guided over a slot on a bolt fixed to the housing.
  • this slot guide many swivel levers on a common guide pin or common guide rod a multi-cylinder internal combustion engine increased friction with the danger a tilt of the swivel lever (s).
  • a common one Guide rod for the swivel levers of similar gas exchange valves a cylinder row in an internal combustion engine requires an increased space.
  • the invention is based, for a device for stroke adjustment the task a gas exchange valve a space-saving design while avoiding the Point out the danger of the tilting lever tilting due to friction.
  • the invention advantageously takes up less installation space Device for stroke adjustment of a gas exchange valve achieved, with a friction Canting of the swivel lever guided according to the invention by means of a relatively simple design of the support surfaces on the shaft sections of the Tax wave is avoided.
  • the background of the spherical support surfaces according to the invention is that the backdrops of the pivot lever are completed in one operation and thus the same Contour and same angle errors.
  • the ones that interact with the scenery Support surfaces of the shaft sections are in two successive Work steps completed, with a cylindrical design of the shaft sections or the support surfaces are different diameters and different or can even result in opposite conicity.
  • the support surfaces have a Show crowning of approx. 10 - 15 ⁇ m.
  • the swivel levers advantageously carry only in Area of the support surface of the backdrop and not on its edges. This allows the otherwise wear does not occur because the point of contact of the two Sliding partners quickly by smoothing the surfaces to a touch ellipse expands long until the occurring Hertzian pressures are safely borne can.
  • a device 1 for stroke adjustment of a section only shown Gas exchange valve 2 in a cylinder head 3, only indicated, one not shown Internal combustion engine includes one that interacts with the gas exchange valve 2 Transmission element 4, which is in line contact via a roller 5 with a control path 6 comprising an idle stroke curve 6 ′ and a stroke curve 6 ′′ a swivel lever 7.
  • the swivel lever 7 projects from the other end 8 of the lever a rolling element 8 'in line contact with one of the stroke settings of the gas exchange valve 2 serving cam 9 on a controlled in the cylinder head 3 and fixable control shaft 10, which has a parallel arranged in the cylinder head 3, Not shown camshaft is associated with a cam at 11 on a Roller 12 acts on the pivot lever 7 for actuating the stroke of the gas exchange valve 2.
  • pivot lever 7 The space-saving, pivotable arrangement of the pivot lever 7 is this on the one hand during a cam-controlled and against one only in sections Return spring 13 caused pivoting movement over the Line-end contact of the rolling element 8 'on the lever end with the cam plate 9 and furthermore with support surfaces 14 on shaft sections 15 of the control shaft 10 on both sides the cam 9 on the other hand interacting slidably Swivel lever scenes 16 performed.
  • the support surfaces 14 have a crown of approximately 10-15 ⁇ m.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Claims (3)

  1. Dispositif pour faire varier la levée d'une soupape dans un moteur à combustion interne, dispositif dans lequel
    un élément de transmission (4) coopérant avec la soupape (2) est en contact linéaire avec une piste de commande (6) portée par un culbuteur (7) et présentant une plage de levée à vide (6') et une plage de levée (6"),
    à l'autre extrémité (8) du culbuteur, celui-ci est en contact linéaire (en 8') avec un disque de came (9) porté par un arbre de commande (10) monté dans la culasse (3) et commandé en rotation,
    un arbre à cames monté dans le culasse (3) parallèlement à l'arbre de commande (10) agit par une came sur une piste (rouleau 12) portée par le culbuteur (7) pour produire la levée de la soupape (2),
    caractérisé en ce que
    le culbuteur (7), d'une part pendant qu'il bascule sous l'action de la came et contre la force d'un ressort de rappel (13), est guidé à une extrémité par contact linéaire (en 8') avec le disque de came (9),
    d'autre part, le culbuteur est guidé par des patins de glissement (16), qu'il présente de part et d'autre du disque de came (9), et qui sont entraínés en glissement par des portées de soutien (14) situées sur des sections (15) de l'arbre de commande (10),
    les portées de soutien (14) coopérant avec les patins (16) présentent une forme bombée.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    les portées de soutien (14) présentent un bombé de 10 à 15 microns environ.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    les portées de soutien (14) partant de part et d'autre du disque de came (9) s'étendent chacune sur une partie importante de la section d'arbre (15).
EP01106205A 2000-04-07 2001-03-14 Dispositif pour varier la levée d'une soupape dans la culasse d'un moteur à combustion interne Expired - Lifetime EP1143118B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10017441 2000-04-07
DE10017441A DE10017441A1 (de) 2000-04-07 2000-04-07 vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1143118A2 EP1143118A2 (fr) 2001-10-10
EP1143118A3 EP1143118A3 (fr) 2002-11-13
EP1143118B1 true EP1143118B1 (fr) 2003-08-13

Family

ID=7638002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01106205A Expired - Lifetime EP1143118B1 (fr) 2000-04-07 2001-03-14 Dispositif pour varier la levée d'une soupape dans la culasse d'un moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP1143118B1 (fr)
DE (2) DE10017441A1 (fr)
ES (1) ES2204773T3 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10235400A1 (de) * 2002-08-02 2004-02-19 Bayerische Motoren Werke Ag Zylinderkopf für eine Brennkraftmaschine mit einem hubvariablen Ventiltrieb
DE10235402A1 (de) * 2002-08-02 2004-02-12 Bayerische Motoren Werke Ag Schwenkhebel für einen hubvariablen Ventiltrieb
DE10260557A1 (de) * 2002-12-21 2004-07-01 Ina-Schaeffler Kg Zwischenhebel für einen variablen Ventiltrieb einer Brennkraftmaschine
JP4248343B2 (ja) * 2003-05-01 2009-04-02 ヤマハ発動機株式会社 エンジンの動弁装置
JP4248344B2 (ja) * 2003-05-01 2009-04-02 ヤマハ発動機株式会社 エンジンの動弁装置
DE10322250B4 (de) * 2003-05-13 2008-01-17 Federal-Mogul Wiesbaden Gmbh & Co. Kg System mit Hilfsnockenwelle und mindestens zwei Lagern und Verfahren zur Herstellung eines Systems mit Hilfsnockenwelle und mindestens zwei Lagern
EP1496211A1 (fr) * 2003-07-08 2005-01-12 Bayerische Motoren Werke Aktiengesellschaft Culbuteur pour une commande de soupapes à levée variable
DE102005040959A1 (de) * 2005-08-30 2007-03-08 Bayerische Motoren Werke Ag Hubvariabler Ventiltrieb für eine Brennkraftmaschine
DE102006018511A1 (de) * 2006-04-21 2007-10-25 Schaeffler Kg Schwinghebel für einen hubvariablen Ventiltrieb
DE102006018510A1 (de) * 2006-04-21 2007-10-25 Schaeffler Kg Schwinghebel für einen hubvariablen Ventiltrieb
DE102007033821B4 (de) * 2007-07-18 2013-10-31 Hydraulik-Ring Gmbh Arbeitskurve eines variablen Ventiltriebs
CN101550853B (zh) * 2009-05-08 2011-04-06 上海汽车集团股份有限公司 发动机气门连续可变驱动机构
DE102011075236A1 (de) * 2011-05-04 2012-11-08 Schaeffler Technologies AG & Co. KG Zwischenhebel
DE102011077527A1 (de) * 2011-06-15 2012-12-20 Schaeffler Technologies AG & Co. KG Zwischenhebel
DE102014100748B4 (de) * 2014-01-23 2017-04-27 Pierburg Gmbh Übertragungsanordnung für einen mechanisch steuerbaren Ventiltrieb sowie mechanisch steuerbarer Ventiltrieb
DE102016220394B3 (de) * 2016-10-18 2017-12-28 Schaeffler Technologies AG & Co. KG Zwischenhebel eines variablen Ventiltriebs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4223172C1 (en) 1992-07-15 1993-08-19 Bayerische Motoren Werke Ag, 8000 Muenchen, De Cylinder head for IC engine - bearing cover for cam shaft bearing also acts for bearing for eccentric shaft
DE4326331A1 (de) 1992-07-15 1995-02-09 Bayerische Motoren Werke Ag Ventiltrieb einer Brennkraftmaschine
EP0638706A1 (fr) * 1993-08-05 1995-02-15 Bayerische Motoren Werke Aktiengesellschaft Dispositif de commande d'actionnement des soupapes d'un moteur à combustion interne
DE19708484B4 (de) * 1997-03-03 2006-07-13 Bayerische Motoren Werke Ag Vorrichtung zur Änderung des Ventilhubverlaufes eines Hubventils, insbesondere eines Gaswechselventils von Brennkraftmaschinen

Also Published As

Publication number Publication date
EP1143118A3 (fr) 2002-11-13
EP1143118A2 (fr) 2001-10-10
DE10017441A1 (de) 2001-10-11
DE50100476D1 (de) 2003-09-18
ES2204773T3 (es) 2004-05-01

Similar Documents

Publication Publication Date Title
EP1143118B1 (fr) Dispositif pour varier la levée d'une soupape dans la culasse d'un moteur à combustion interne
DE10006018B4 (de) Variabler Ventiltrieb zur Laststeuerung einer fremdgezündeten Brennkraftmaschine
DE69105265T2 (de) Nockensteuerungen.
DE10220904B4 (de) Vorrichtung zum Verstellen des Hubs eines von einer Nockenwelle betätigten Ventils
DE69914348T3 (de) Ventiltrieb
DE102005017066B4 (de) Variable Ventileinheit für einen Verbrennungsmotor
DE10158703A1 (de) Kipphebelanordnung
EP1853797B1 (fr) Commande mecanique variable de soupapes d'un moteur a combustion interne
DE10140635B4 (de) Vorrichtung zur variablen Ventilhubverstellung von Gaswechselventilen einer Verbrennungskraftmaschine
DE3500524C2 (fr)
EP2630345A1 (fr) Distribution à commande mécanique et ensemble de distribution à commande mécanique
DE4301453C2 (de) Variable Ventilsteuerung von Brennkraftmaschinen
DE3500523C2 (fr)
DE10228022A1 (de) Ventilhubvorrichtung zur Hubverstellung der Gaswechselventile einer Verbrennungskraftmaschine
DE102014108040A1 (de) Ventilhubhöhe variabel verändernde Variabel-Ventilvorrichtung
DE102005010182B4 (de) Variabel mechanische Ventilsteuerung einer Brennkraftmaschine
DE102010002495B4 (de) Variabler Ventilbetätigungsmechanismus
DE4112833A1 (de) Variable ventilsteuerung fuer ein gaswechselventil einer brennkraftmaschine
DE19600536A1 (de) Vorrichtung zur variablen Steuerung eines Einlaßventils
EP1387048B1 (fr) Levier oscillant pour commande de soupape à course variable
DE102008047124B4 (de) Stufenlos verstellbare Ventilhubvorrichtung
DE10320324A1 (de) Einrichtung zur variablen Betätigung von Ventilen für Verbrennungsmotoren
DE3041864A1 (de) Vorrichtung zum verschieben der steuerzeit eines gaswechselventils einer brennkraftmaschine
DE202007013509U1 (de) Raumnockenventiltrieb mit modifizierter Raumnockengeometrie
EP1022443B1 (fr) Dispositif de commande variable pour soupape de moteur a combustion interne

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20021123

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AKX Designation fees paid

Designated state(s): DE ES FR GB IT

AK Designated contracting states

Designated state(s): DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50100476

Country of ref document: DE

Date of ref document: 20030918

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2204773

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040514

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20190130

Year of fee payment: 16

Ref country code: GB

Payment date: 20190325

Year of fee payment: 19

Ref country code: FR

Payment date: 20190326

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20190424

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200313

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50100476

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200314

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20210729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200314

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200315

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230419