Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2011-03-15
2011-03-15
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090390, C123S090440, C074S569000
Reexamination Certificate
active
07905207
ABSTRACT:
A variable valve lift apparatus may include a camshaft having an input cam, a rocker arm shaft disposed in parallel with the camshaft with a distance therebetween, a shaft carrier with a camshaft and a rocker arm shaft, a rocker arm that is mounted on the rocker arm shaft with a first roller contacting the input cam, a first link connected to the rocker arm, an amplification lever with a middle portion thereof connected to the first link and the shaft carrier, a second link connected to the amplification lever, an output cam mounted on the camshaft, one side of the output cam connected to the second link, and a profile portion formed at an exterior circumference thereof, a variable driveshaft rotating the shaft carrier by a predetermined angle, and a valve moved by the profile portion with rotation of the output cam.
REFERENCES:
patent: 7600496 (2009-10-01), Nakamura et al.
Chang Kyoung Joon
Kong Jin Kook
Kwak Young Hong
Kwon Ki-young
Lee Eun Ho
Chang Ching
Hyundai Motor Company
Morgan & Lewis & Bockius, LLP
LandOfFree
Variable valve lift apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable valve lift apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable valve lift apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2741436