EP1907673A1 - Mecanisme de commande de soupape pour un moteur a combustion interne - Google Patents

Mecanisme de commande de soupape pour un moteur a combustion interne

Info

Publication number
EP1907673A1
EP1907673A1 EP06762261A EP06762261A EP1907673A1 EP 1907673 A1 EP1907673 A1 EP 1907673A1 EP 06762261 A EP06762261 A EP 06762261A EP 06762261 A EP06762261 A EP 06762261A EP 1907673 A1 EP1907673 A1 EP 1907673A1
Authority
EP
European Patent Office
Prior art keywords
cam
support element
valve
support
valve drive
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.)
Withdrawn
Application number
EP06762261A
Other languages
German (de)
English (en)
Inventor
Stephan Möck
Arndt Ihlemann
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.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler KG
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 Schaeffler KG filed Critical Schaeffler KG
Publication of EP1907673A1 publication Critical patent/EP1907673A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • 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
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • 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
    • F01L13/0021—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
    • F01L13/0036—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • 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
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • 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
    • F01L13/0036—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L2013/0052—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 the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20882—Rocker arms

Definitions

  • a superposition of two movements namely on the one hand as a result of the adjusting movement, which is achieved by the cam, and on the other hand, due to a movement of the support point, can be achieved.
  • the stroke caused by the cam can be increased or decreased.
  • the same movement of the support point (or a different movement of the support point) in conjunction with both the first cam as can also be used with the second cam track.
  • the support element having a valve clearance compensation element, which does not serve to change the Hubprofiles, but the compensation of an undesirable game.
  • a further embodiment of the invention is of particular importance in connection with a deactivation of the valve, in particular in conjunction with a cylinder deactivation.
  • the valve should remain in its closed position.
  • the cam track is selected which has the smallest stroke.
  • the support element is spent in the second switching position, in which the support point is movable during rotation of the camshaft.
  • the support point corresponding to the rotation of the cam track and its stroke suitable for, so that the lever pivots in this case to the attachment point of the valve.
  • This so-called “idle stroke" of the support element is dimensioned in such a way that, during one revolution around the associated cam track, the support point is moved by approximately the idle stroke in one direction and then back again, while the valve remains at least largely stationary.

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)

Abstract

La présente invention concerne un mécanisme de commande de soupape pour un moteur à combustion interne, présentant un profil de course variable pour une soupape (13). Selon cette invention, un levier (11) s'appuie sur un point d'appui mobile par l'intermédiaire d'un élément d'appui commutable (16), ce qui offre des premières possibilités pour influencer le profil de course. De façon alternative ou supplémentaire, un déplacement axial d'une came (17, 23) est utilisé de manière que différentes voies de came (25, 26) sur le levier (11) soient actives. La conception selon cette invention permet d'élargir les possibilités à une variation du profil de course ou, avec des possibilités de variation identiques, l'élément d'appui (16) peut être plus petit dans la direction longitudinale et présenter une course à vide plus petite.
EP06762261A 2005-07-15 2006-06-29 Mecanisme de commande de soupape pour un moteur a combustion interne Withdrawn EP1907673A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005033018A DE102005033018A1 (de) 2005-07-15 2005-07-15 Ventiltrieb für eine Brennkraftmaschine
PCT/EP2006/006292 WO2007009565A1 (fr) 2005-07-15 2006-06-29 Mecanisme de commande de soupape pour un moteur a combustion interne

Publications (1)

Publication Number Publication Date
EP1907673A1 true EP1907673A1 (fr) 2008-04-09

Family

ID=36972905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06762261A Withdrawn EP1907673A1 (fr) 2005-07-15 2006-06-29 Mecanisme de commande de soupape pour un moteur a combustion interne

Country Status (5)

Country Link
US (1) US7963261B2 (fr)
EP (1) EP1907673A1 (fr)
CN (1) CN101223339A (fr)
DE (1) DE102005033018A1 (fr)
WO (1) WO2007009565A1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007010149A1 (de) * 2007-03-02 2008-09-04 Audi Ag Ventiltrieb für Gaswechselventile einer Brennkraftmaschine mit verschiebbarem Nockenträger und Doppelschneckentrieb
DE102007040677A1 (de) * 2007-08-29 2009-03-05 Schaeffler Kg Brennkraftmaschine mit variablem Gaswechselventiltrieb
DE102007054979A1 (de) * 2007-11-17 2009-05-20 Daimler Ag Ventiltriebvorrichtung
DE102007054977A1 (de) * 2007-11-17 2009-05-20 Daimler Ag Ventiltriebvorrichtung
DE102007056337A1 (de) * 2007-11-22 2009-05-28 Daimler Ag Ventiltriebvorrichtung
DE102007057811B4 (de) * 2007-11-30 2015-04-30 Volkswagen Ag Ventiltrieb für Gaswechselventile einer Brennkraftmaschine
DE102007062234A1 (de) * 2007-12-21 2009-06-25 Daimler Ag Ventiltriebvorrichtung
DE102008029325A1 (de) * 2008-06-20 2009-12-24 Daimler Ag Ventiltriebvorrichtung
DE102008029349A1 (de) * 2008-06-20 2009-12-24 Daimler Ag Ventiltriebvorrichtung
DE102009008422A1 (de) * 2009-02-11 2010-08-12 Daimler Ag Ventiltriebumschaltvorrichtung
DE102010013216B4 (de) * 2009-04-04 2022-04-28 Schaeffler Technologies AG & Co. KG Ventiltrieb einer Brennkraftmaschine
DE102009040607A1 (de) * 2009-09-08 2011-03-10 Schaeffler Technologies Gmbh & Co. Kg Baueinheit für einen Ventiltrieb einer Brennkraftmaschine
DE102010036899A1 (de) * 2010-08-06 2012-02-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Brennkraftmaschine
US20120312263A1 (en) * 2011-05-26 2012-12-13 Arrieta Francisco A Variable Geometry Cam Shafts For Multiple-Cylinder Internal Combustion Engines
DE102011104382A1 (de) * 2011-06-16 2012-12-20 Daimler Ag Brennkraftmaschinenventiltriebvorrichtung für ein Kraftfahrzeug
DE102011079748A1 (de) * 2011-07-25 2013-01-31 Schaeffler Technologies AG & Co. KG Ventiltrieb für eine Brennkraftmaschine
FR3005112B1 (fr) * 2013-04-26 2015-05-01 Peugeot Citroen Automobiles Sa Dispositif de desactivation de cylindres de combustion a roue de commande
DE102014201083A1 (de) * 2014-01-22 2015-07-23 Bayerische Motoren Werke Aktiengesellschaft Variables Ändern einer Ventilöffnungszeit eines Ladungswechselventils
JP6686454B2 (ja) * 2016-01-12 2020-04-22 いすゞ自動車株式会社 カム切替装置
DE102017116820A1 (de) * 2017-07-25 2019-01-31 Man Truck & Bus Ag Schiebenockensystem
CN109405385A (zh) * 2018-11-20 2019-03-01 沈阳娅豪滑雪产业集团有限公司 造雪机阀组

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3633554A (en) * 1969-07-30 1972-01-11 Nissan Motor Valve timing system of automotive internal combustion engine
FR2663682B1 (fr) 1990-06-21 1992-10-16 Peugeot Dispositif a amplitude variable pour la levee d'au moins une soupape de moteur a combustion interne.
DE4118287A1 (de) 1991-06-04 1992-12-10 Audi Ag Ventilsteuereinrichtung fuer eine brennkraftmaschine
DE102004011586A1 (de) * 2003-03-21 2004-10-07 Audi Ag Ventiltrieb einer einen Zylinderkopf aufweisenden Brennkraftmaschine
DE10316990A1 (de) * 2003-04-11 2004-10-28 Rolf Jung Vollvariabler mechanischer Ventiltrieb einer Brennkraftmaschine zur Betätigung von Gaswechselventilen
EP1503048B1 (fr) 2003-07-19 2008-10-08 Dr. Ing. h.c. F. Porsche Aktiengesellschaft Mécanisme de commande de soupapes pour moteur à combustion interne
DE10349898A1 (de) * 2003-10-25 2005-05-25 Audi Ag Ventiltrieb einer Brennkraftmaschine mit mindestens einer Nockenwelle
US6901893B1 (en) * 2004-04-15 2005-06-07 Stanadyne Corporation Valve deactivator assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007009565A1 *

Also Published As

Publication number Publication date
US7963261B2 (en) 2011-06-21
US20090071427A1 (en) 2009-03-19
DE102005033018A1 (de) 2007-01-25
WO2007009565A1 (fr) 2007-01-25
CN101223339A (zh) 2008-07-16

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