EP1387048A2 - Levier oscillant pour commande de soupape à course variable - Google Patents

Levier oscillant pour commande de soupape à course variable Download PDF

Info

Publication number
EP1387048A2
EP1387048A2 EP03015068A EP03015068A EP1387048A2 EP 1387048 A2 EP1387048 A2 EP 1387048A2 EP 03015068 A EP03015068 A EP 03015068A EP 03015068 A EP03015068 A EP 03015068A EP 1387048 A2 EP1387048 A2 EP 1387048A2
Authority
EP
European Patent Office
Prior art keywords
roller element
roller
pivot lever
hand
bearing
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
EP03015068A
Other languages
German (de)
English (en)
Other versions
EP1387048B1 (fr
EP1387048A3 (fr
Inventor
Michael Allgeier
Torsten Eder
Klaus Dr. Benedikt
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
PSA Automobiles SA
Original Assignee
Bayerische Motoren Werke AG
Peugeot Citroen Automobiles SA
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, Peugeot Citroen Automobiles SA filed Critical Bayerische Motoren Werke AG
Publication of EP1387048A2 publication Critical patent/EP1387048A2/fr
Publication of EP1387048A3 publication Critical patent/EP1387048A3/fr
Application granted granted Critical
Publication of EP1387048B1 publication Critical patent/EP1387048B1/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
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating 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
    • 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
    • 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
    • F01L2305/00—Valve arrangements comprising rollers

Definitions

  • the invention relates to a pivot lever for a variable-stroke valve drive according to the features in the preamble of claim 1.
  • valve drive device for variable stroke adjustment a gas exchange valve of an internal combustion engine described.
  • Valve train device is the gas exchange valve with the interposition of a Transmission element with a movable about a rotation axis roller in operative connection with a control path comprising a no-lift curve and a lift curve, in an end region of a stroke for the gas exchange valve of a cam of a camshaft controlled pivot lever is arranged.
  • Object of the present invention is to friction reducing measures for a show generic pivot lever.
  • roller element into two separate roller elements means that advantageously the first roller element or the second roller element is in operative connection only with either the slide or with the adjusting unit. Production-related tolerances in the production of rolls can be better compensated by this arrangement, whereby the internal friction and thus the wear is reduced.
  • the bearing tolerances add up the first roller element and the second roller element, thereby manufacturing technology conditional tolerances can be even better compensated.
  • the embodiment according to claim 5 has the best power distribution during operation and the least friction, which in turn increases the life of the internal friction, wear and fuel consumption of the internal combustion engine minimized.
  • Fig. 1 shows a variable-stroke valve drive 2, which is shown in a rudimentary manner Cylinder head 1 is arranged.
  • the variable stroke valve train 2 consists essentially from a pivot lever 3, with a roller element 4 and a swing fulcrum 4 ', a third roller element 13, and a gate 5 with a slide track 5 ', an intermediate element 7, a gas exchange valve 8, a cam 9, which is arranged on a camshaft 9 'and a spring 10 and an adjusting device 11.
  • the pivot lever 3 is supported on the one hand via the roller element.
  • the intermediate element 7 is a roller rocker whose role is around a rotation axis 12 is rotatable.
  • the axis of rotation 12 is also the center of the Sliding track 5 'in a Nullhub too.
  • the intermediate element is supported on the one hand from the axis of rotation 12 on a lash adjuster 14, here a hydraulic Valve lash adjuster, and on the other hand on the gas exchange valve 8 off.
  • Fig. 2 shows the side view of a pivot lever 3 for the first and the second Embodiment.
  • the pivot lever 3 consists of an approximately box-shaped Housing 3 ', which on one end of the control track 6, with the Leerhubkurve 6 'and the lifting cam 6 "and on the opposite end a first bore 15, which is aligned normal to the control track 6 has.
  • a first bolt 16 Radially about the first pin 16 is the roller element 4 arranged.
  • a second bore 15 ' Between the roller element 4 and the control track 6 is located a second bore 15 ', in which a second pin 16' parallel to the first Bolt 16 is mounted.
  • Radial on the outer circumference is around the bolt 16 'is the third Roller element 13 rotatably mounted.
  • This section A-A corresponds the representations in Fig. 3 and Fig. 4 for each embodiment.
  • Fig. 3 shows a section through the plane A-A for a first embodiment of the pivot lever 3.
  • a roller bearing 17 is arranged. Radial about this bearing 17 is rotatably the roller element 4, mounted within the housing 3 '.
  • the Roller element 4 is divided into two first roller elements 4a and a second roller element 4b.
  • the roller element 4b extends in the axial direction over the Whole length of the rolling bearing 17, corresponding to an internal dimension, not shown of the housing 3 '.
  • Radially on the outer circumference of the first roller element 4b the two second roller elements 4a are arranged rotatably.
  • the first two Roller elements 4a form a sliding bearing with the second roller element 4b.
  • only a first roller element 4a may be provided be, with this then in axial alignment over about half of the second roller element 4b extends or in the middle of the second roller element 4b is arranged. Also, a roller bearing of the first roller element 4a on the second roller element 4b is possible.
  • Fig. 4 shows the section through the pivot lever 3 in the plane A-A for a second Embodiment.
  • first roller elements 4a and a second roller element 4b are compared to the first embodiment in axial Direction arranged side by side and each have their own rolling bearing 17 ', 17 ", 17"' opposite the first pin 16.
  • the first roller element 4a with the adjusting device 11 in Operative connection
  • the second roller element 4b with the slide track 5 'of Setting 5 is in operative connection.
  • Centric a section B-B is located, the relative to the section A-A is rotated by 90 °.
  • first roller element 4a may be provided.
  • first roller member 4a and the second roller member 4b in axial Direction of the first bolt 16 in turn next to each other.
  • the rolling bearings 17, 17 ', 17 ", 17"' as a needle bearing and under certain circumstances can also be designed as sliding bearings.
  • Fig. 5 shows by way of illustration a relation to FIG. 4 rotated by 90 ° Section through the pivot lever for the second embodiment. It applies the Figure description of Fig. 4.

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)
EP03015068A 2002-08-02 2003-07-03 Levier oscillant pour commande de soupape à course variable Expired - Lifetime EP1387048B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10235403 2002-08-02
DE10235403A DE10235403A1 (de) 2002-08-02 2002-08-02 Schwenkhebel für einen hubvariablen Ventiltrieb

Publications (3)

Publication Number Publication Date
EP1387048A2 true EP1387048A2 (fr) 2004-02-04
EP1387048A3 EP1387048A3 (fr) 2007-07-25
EP1387048B1 EP1387048B1 (fr) 2009-11-25

Family

ID=30010568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03015068A Expired - Lifetime EP1387048B1 (fr) 2002-08-02 2003-07-03 Levier oscillant pour commande de soupape à course variable

Country Status (2)

Country Link
EP (1) EP1387048B1 (fr)
DE (2) DE10235403A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847691A2 (fr) * 2006-04-21 2007-10-24 Schaeffler KG Elément de rouleau pour une pièce de machine mobile par pivotement
WO2008153191A2 (fr) * 2007-06-14 2008-12-18 Toyota Jidosha Kabushiki Kaisha Appareil à soupape variable
WO2012107121A1 (fr) * 2011-02-10 2012-08-16 Schaeffler Technologies AG & Co. KG Levier intermédiaire
WO2012107119A1 (fr) * 2011-02-10 2012-08-16 Schaeffler Technologies AG & Co. KG Levier intermédiaire
WO2015110189A1 (fr) * 2014-01-23 2015-07-30 Pierburg Gmbh Système de transmission destiné à un mécanisme de distribution à commande mécanique et mécanisme de distribution à commande mécanique
WO2016005071A1 (fr) * 2014-07-09 2016-01-14 Pierburg Gmbh Mécanisme de distribution à commande mécanique
EP3324010A1 (fr) * 2016-11-18 2018-05-23 Pierburg GmbH Commande mécanique de soupape

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004008389A1 (de) 2004-02-20 2005-09-08 Bayerische Motoren Werke Ag Hubvariabler Ventiltrieb für eine Brennkraftmaschine
DE102006018510A1 (de) * 2006-04-21 2007-10-25 Schaeffler Kg Schwinghebel für einen hubvariablen Ventiltrieb
DE102015118884A1 (de) * 2015-11-04 2017-05-04 Pierburg Gmbh Mechanisch steuerbarer Ventiltrieb

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10123186A1 (de) 2001-05-12 2002-11-14 Bayerische Motoren Werke Ag Ventiltrieb-Vorrichtung zur variablen Hubverstellung eines Gaswechselventils einer Brennkraftmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4223173A1 (de) * 1992-07-15 1994-01-20 Bayerische Motoren Werke Ag Ventiltrieb einer Brennkraftmaschine
DE4322480C2 (de) * 1993-07-06 1996-05-02 Meta Motoren Energietech Vorrichtung zur variablen Ventilsteuerung von Brennkraftmaschinen
EP1022443B1 (fr) * 1999-01-19 2001-08-08 Ford Global Technologies, Inc. Dispositif de commande variable pour soupape de moteur a combustion interne
DE19913742A1 (de) * 1999-03-26 2000-09-28 Bayerische Motoren Werke Ag Vorrichtung zur Hubverstellung eines Gaswechselventils im Zylinderkopf einer Brennkraftmaschine
DE19920512A1 (de) * 1999-05-05 2000-11-09 Opel Adam Ag Vorrichtung zur Betätigung eines Ventiles mit variablem Hub an Brennkraftmaschinen
EP1096115B1 (fr) * 1999-10-29 2002-07-10 STS System Technology Services GmbH Dispositif de régulation mécanique de la levée de soupape de moteur à combustion interne
DE19960742B4 (de) * 1999-12-16 2006-09-28 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Variabler Ventiltrieb, vorzugsweise für Verbrennungsmotoren
DE10016103A1 (de) * 2000-03-31 2001-10-04 Audi Ag Variable Ventilsteuerung
DE50103100D1 (de) * 2001-05-03 2004-09-09 Sts System Technology Services Mechanische Regelung der Hubverstellung des Einlassventils eines Verbrennungsmotors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10123186A1 (de) 2001-05-12 2002-11-14 Bayerische Motoren Werke Ag Ventiltrieb-Vorrichtung zur variablen Hubverstellung eines Gaswechselventils einer Brennkraftmaschine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1847691A2 (fr) * 2006-04-21 2007-10-24 Schaeffler KG Elément de rouleau pour une pièce de machine mobile par pivotement
EP1847691A3 (fr) * 2006-04-21 2009-04-08 Schaeffler KG Elément de rouleau pour une pièce de machine mobile par pivotement
WO2008153191A2 (fr) * 2007-06-14 2008-12-18 Toyota Jidosha Kabushiki Kaisha Appareil à soupape variable
WO2008153191A3 (fr) * 2007-06-14 2009-02-26 Toyota Motor Co Ltd Appareil à soupape variable
CN101680315B (zh) * 2007-06-14 2012-01-18 丰田自动车株式会社 可变气门设备
US8109245B2 (en) 2007-06-14 2012-02-07 Toyota Jidosha Kabushiki Kaisha Variable valve apparatus
WO2012107121A1 (fr) * 2011-02-10 2012-08-16 Schaeffler Technologies AG & Co. KG Levier intermédiaire
WO2012107119A1 (fr) * 2011-02-10 2012-08-16 Schaeffler Technologies AG & Co. KG Levier intermédiaire
WO2015110189A1 (fr) * 2014-01-23 2015-07-30 Pierburg Gmbh Système de transmission destiné à un mécanisme de distribution à commande mécanique et mécanisme de distribution à commande mécanique
CN105658918A (zh) * 2014-01-23 2016-06-08 皮尔伯格有限责任公司 用于机械可控式气门机构的传动总成以及机械可控式气门机构
CN105658918B (zh) * 2014-01-23 2019-10-01 皮尔伯格有限责任公司 用于机械可控式气门机构的传动总成以及机械可控式气门机构
WO2016005071A1 (fr) * 2014-07-09 2016-01-14 Pierburg Gmbh Mécanisme de distribution à commande mécanique
US10851683B2 (en) 2014-07-09 2020-12-01 Pierburg Gmbh Mechanically controllable valve drive
EP3324010A1 (fr) * 2016-11-18 2018-05-23 Pierburg GmbH Commande mécanique de soupape

Also Published As

Publication number Publication date
EP1387048B1 (fr) 2009-11-25
DE10235403A1 (de) 2004-02-12
DE50312150D1 (de) 2010-01-07
EP1387048A3 (fr) 2007-07-25

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