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1. (WO2007009565) VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/009565 International Application No.: PCT/EP2006/006292
Publication Date: 25.01.2007 International Filing Date: 29.06.2006
IPC:
F01L 13/00 (2006.01) ,F01L 1/047 (2006.01) ,F01L 1/18 (2006.01) ,F01L 1/24 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
13
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1
Valve-gear or valve arrangements, e.g. lift-valve gear
02
Valve drive
04
by means of cams, camshafts, cam discs, eccentrics, or the like
047
Camshafts
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1
Valve-gear or valve arrangements, e.g. lift-valve gear
12
Transmitting-gear between valve drive and valve
18
Rocking arms or levers
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1
Valve-gear or valve arrangements, e.g. lift-valve gear
20
Adjusting or compensating clearance, i.e. lash adjustment
22
automatically
24
by fluid means, e.g. hydraulically
Applicants:
SCHAEFFLER KG [DE/DE]; Industriestrasse 1-3 91074 Herzogenaurach, DE (AllExceptUS)
MÖCK, Stephan [DE/DE]; DE (UsOnly)
IHLEMANN, Arndt [DE/DE]; DE (UsOnly)
Inventors:
MÖCK, Stephan; DE
IHLEMANN, Arndt; DE
Common
Representative:
SCHAEFFLER KG; Industriestrasse 1-3 91074 Herzogenaurach, DE
Priority Data:
10 2005 033 018.515.07.2005DE
Title (DE) VENTILTRIEB FÜR EINE BRENNKRAFTMASCHINE
(EN) VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE
(FR) MECANISME DE COMMANDE DE SOUPAPE POUR UN MOTEUR A COMBUSTION INTERNE
Abstract:
(DE) Die Erfindung betrifft einen Ventiltrieb für eine Brennkraftmaschine mit einem veränderlichen Hubprofil für ein Ventil (13). Erfindungsgemäß ist ein Hebel (11) an einem verschieblichen Abstützpunkt über ein schaltbares Abstützelement (16) abgestützt, wodurch erste Möglichkeiten zur Beeinflussung des Hubprofils gegeben sind. Alternativ oder kumulativ findet eine axiale Verschiebung eines Nockens (17, 23) Einsatz, so dass unterschiedliche Nockenbahnen (25, 26) an dem Hebel (11) wirksam sind. Durch die erfindungsgemäße Ausgestaltung können die Möglichkeiten für eine Variation des Hubprofiles erweitert werden oder bei gleichen Variationsmöglichkeiten kann das Abstützelement (16) mit verringerter Längserstreckung und kleinerem Leerhub ausgebildet werden.
(EN) The invention relates to a valve drive for an internal combustion engine comprising a variable hub profile for a valve (13). According to the invention, a lever (11) is supported on a variable support point by means of a switchable support element (16) which provides possibilities for influencing the hub profile. Alternatively and cumulatively, the cam (17, 23) is axially displaced such that various cam paths (25, 26) are active on the lever (11). The possibilities for a variation of the hub profile can be broadened due to the inventive embodiment or the same variation possibilities are formed by a support element (16) having a reduced longitudinal extension and smaller idle stroke.
(FR) 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.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP1907673US20090071427CN101223339