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1. WO1996012092 - ENGAGEABLE TAPPET FOR A VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE

Publication Number WO/1996/012092
Publication Date 25.04.1996
International Application No. PCT/EP1995/003317
International Filing Date 21.08.1995
Chapter 2 Demand Filed 03.02.1996
IPC
F01L 1/14 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
12Transmitting-gear between valve drive and valve
14Tappets; Push-rods
F01L 13/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
13Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
CPC
F01L 1/143
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1Valve-gear or valve arrangements, e.g. lift-valve gear
12Transmitting gear between valve drive and valve
14Tappets
143for use with overhead camshafts
F01L 13/0005
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
13Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
0005Deactivating valves
F01L 13/0036
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
13Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
0015for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
0036the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
Applicants
  • INA WÄLZLAGER SCHAEFFLER KG [DE]/[DE] (AllExceptUS)
  • HAAS, Michael [DE]/[DE] (UsOnly)
  • MAAS, Gerhard [DE]/[DE] (UsOnly)
  • SPEIL, Walter [DE]/[DE] (UsOnly)
  • WOLLBOLDT, Birger [DE]/[DE] (UsOnly)
Inventors
  • HAAS, Michael
  • MAAS, Gerhard
  • SPEIL, Walter
  • WOLLBOLDT, Birger
Common Representative
  • INA WÄLZLAGER SCHAEFFLER KG
Priority Data
P 44 36 952.215.10.1994DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) SCHALTBARER STÖSSEL EINES VENTILTRIEBS EINER BRENNKRAFTMASCHINE
(EN) ENGAGEABLE TAPPET FOR A VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE
(FR) POUSSOIR ACCOUPLABLE D'UN SYSTEME DE COMMANDE DE SOUPAPE DE MOTEUR A COMBUSTION INTERNE
Abstract
(DE)
Ein Stößel (1) soll einerseits auf zumindest drei unterschiedliche Nockenkonturen schaltbar sein, wobei wahlweise ein Null-Hub realisiert werden kann. Hierzu besteht der Stößel (1) aus einem kreisringförmigen Bodenabschnitt (2), welcher einen kreisförmigen Bodenabschnitt (3) einschließt. Beide Bodenabschnitte (2, 3) sind über radial verlagerbare Kuppelmittel (10) miteinander kuppelbar. In einer Führungshülse (7) des kreisförmigen Bodenabschnitts (3) ist ein zusätzlicher, axial beweglicher Innenkolben (18) angeordnet. Der Innenkolben (18) ist über weitere Kuppelmittel (23) zum Zwecke eines vollständigen Entkuppelns des Stößels (1) gegenüber der Führungshülse (7) entkuppelbar.
(EN)
A tappet (1) is to be engageable on to at least three different cam profiles with an optional zero lift. To this end the tappet (1) consists of an annular base section (2) enclosing a circular base section (3). Both base sections (2, 3) can be coupled together via radially adjustable coupling devices (10). An additional, axially movable inner piston (18) is fitted in a guide sleeve (7) of the circular base section (3). The inner piston (18) can be decoupled via further coupling means (23) so that the tappet (1) can be completely decoupled from the guide sleeve (7).
(FR)
L'invention vise d'une part à ce qu'un poussoir (1) soit accouplable sur au moins trois différents contours de cames, avec possibilité de réaliser au choix une course nulle. A cet effet, le poussoir (1) comprend une section de base (2) en anneau de cercle qui entoure une section de base (3) circulaire. Les deux sections de base (2, 3) peuvent être accouplées l'une à l'autre par l'intermédiaire d'éléments d'accouplement (10) à déplacement radial. Un piston intérieur (18) supplémentaire à déplacement axial est monté dans une douille de guidage (7) de la section de base (3) circulaire. Le piston intérieur (18) peut être désaccouplé par l'intermédiaire d'autres éléments d'accouplement (23) afin de désaccoupler complètement le poussoir (1) de la douille de guidage (7).
Also published as
DE19581156
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