Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2008-07-22
2008-07-22
Eshete, Zelalem (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090150, C123S090310
Reexamination Certificate
active
07401581
ABSTRACT:
A variable valve apparatus for an internal combustion engine including a cylinder set comprising a plurality of cylinders. The variable valve apparatus includes: a control shaft adapted for rotation; a valve actuating mechanism provided for each cylinder of the cylinder set and adapted to vary a valve lift characteristic of an engine valve of the each cylinder of the cylinder set in accordance with a rotational position of the control shaft; and a valve lift adjusting mechanism provided for each cylinder of a first subset of the cylinder set and adapted to adjust the valve lift characteristic of the engine valve of the each cylinder of the first subset in accordance with a standard valve lift characteristic determined in accordance with the valve lift characteristic of the engine valve of each cylinder of a second subset of the cylinder set.
REFERENCES:
patent: 6622678 (2003-09-01), Shimizu et al.
patent: 2004/0074475 (2004-04-01), Weiss et al.
patent: 2001-123809 (2001-05-01), None
Eshete Zelalem
Foley & Lardner LLP
Hitachi , Ltd.
LandOfFree
Variable valve apparatus for internal combustion engine 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 apparatus for internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable valve apparatus for internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2788828