Internal-combustion engines – Poppet valve operating mechanism – Electrical system
Reexamination Certificate
2011-05-24
2011-05-24
Denion, Thomas E (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Electrical system
C251S129160
Reexamination Certificate
active
07946261
ABSTRACT:
An electromagnetic actuator including an actuating member associated with an armature and able to move between two extreme positions under the action of an elastic member and two electromagnets that attract the armature to one of the extreme positions, where the electromagnets each include a coil, a core for channeling a flux of the coil so that it forms a return path in the armature, and permanent magnets associated with the core so that the latter channels a flux of the permanent magnets so that it forms a return path in the armature, where the permanent magnets of one of the electromagnets exert a force on the armature sufficient to retain the armature in the associated extreme position against the springs, and where the permanent magnets of the other electromagnet exerts a force on the armature insufficient to retain the armature in the associated extreme position against the springs.
REFERENCES:
patent: 6763789 (2004-07-01), Liang et al.
patent: 7124720 (2006-10-01), Liang et al.
patent: 7156057 (2007-01-01), Lecrivain et al.
patent: 7249579 (2007-07-01), Liang et al.
patent: 7584727 (2009-09-01), Liang et al.
patent: 2004/0217313 (2004-11-01), Sedda et al.
patent: 2005/0166873 (2005-08-01), Morin et al.
patent: 2005/0211199 (2005-09-01), Liang et al.
patent: 2005/0211200 (2005-09-01), Liang et al.
patent: 2005/0279300 (2005-12-01), Liang et al.
patent: 2007/0131185 (2007-06-01), Liang et al.
patent: 100 03 928 (2001-06-01), None
patent: 10003928 (2001-06-01), None
International Search Report from PCT/FR2006/002622 mailed Apr. 11, 2007 (6 pages).
Sfaxi Mahmoud
Talon Emmanuel
Bernstein Daniel A
Denion Thomas E
Osha & Liang LLP
Valeo Systemes de Controle Moteur
LandOfFree
Electromagnetic actuator with two electromagnets comprising... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electromagnetic actuator with two electromagnets comprising..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic actuator with two electromagnets comprising... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2645487