Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2004-03-17
2009-02-24
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090200, C123S090390, C123S090150, C074S569000
Reexamination Certificate
active
07493878
ABSTRACT:
The invention relates to a device for the variable actuation of the gas exchange valves of internal combustion engines, whereby a continuously revolving cam drives an intermediate member which carries out an oscillating, pure rotational movement and moves a drive member in accordance with the respective valve lift curve via a control cam. In order to modify the valve lift curve, the position of the rotational axis of the intermediate member can be modified along an advance curve. The rotational axis of the intermediate member is represented by a pin which is freely rotatable at its guide end and which carries cam plates that are linked therewith in a rotationally fixed manner. Said cam plates define either directly or indirectly the respective required position on the advance curve. The pin is rotated via a suitable joining element.
REFERENCES:
patent: 6481399 (2002-11-01), Morrn
patent: 6792903 (2004-09-01), Morrn
patent: 6907852 (2005-06-01), Schleusener et al.
patent: 6997153 (2006-02-01), Schon et al.
patent: 7296546 (2007-11-01), Schon et al.
patent: 7302922 (2007-12-01), Schon et al.
Keller Kai-Uwe
Kuhn Peter
Schön Helmut
Crowell & Moring LLP
Denion Thomas
Riddle Kyle M
ThyssenKrupp Presta TecCenter AG
LandOfFree
Device for variable actuation of the gas exchange valves of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for variable actuation of the gas exchange valves of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for variable actuation of the gas exchange valves of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4115296