Internal-combustion engines – Poppet valve operating mechanism – Camshaft drive means
Reexamination Certificate
2007-11-13
2007-11-13
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
Camshaft drive means
C123S090150, C123S090270
Reexamination Certificate
active
10918615
ABSTRACT:
A variable timing camshaft drive assembly for an internal combustion engine utilizes a single cam phaser, driven by an engine crankshaft, capable of operating multiple camshafts carried on multiple banks of an engine. The cam phaser is carried on a hub extending from a mounting member attached to an engine block. The cam phaser includes an input sprocket and an output sprocket separated by a phasing device capable of altering the phase angle of the sprockets relative to one another. A first timing chain connects a drive sprocket of the crankshaft with the input sprocket of the cam phaser and a second timing chain connects the output sprocket of the cam phaser with the driven sprockets of the camshafts. As the phasing device alters the phase angle between the input and output sprockets, the phase angle between the camshafts and the crankshafts is altered.
REFERENCES:
patent: RE24645 (1959-05-01), Chayne
patent: 5033327 (1991-07-01), Lichti et al.
patent: 5113807 (1992-05-01), Kobayashi
patent: 5560329 (1996-10-01), Hayman
patent: 5564380 (1996-10-01), Kobayashi et al.
patent: 6367435 (2002-04-01), Okui et al.
patent: 2004/0154568 (2004-08-01), Yamauchi et al.
patent: 3619577 (1987-12-01), None
Hayman Alan W.
Mazzola, III James J.
Chang Ching
General Motors Corporation
LandOfFree
Overhead camshaft drive assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Overhead camshaft drive assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Overhead camshaft drive assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3886817