Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2005-08-23
2005-08-23
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090150, C123S090390
Reexamination Certificate
active
06932035
ABSTRACT:
A poppet valve operating system for an internal combustion engine includes a finger follower which is driven by an intermediate rocker. The intermediate rocker selectively converts motion imparted by a drive cam into either a purely translational trajectory, or into a mixed translational and rotational trajectory, so as to open a poppet valve which is ultimately actuated by a finger follower interposed between the intermediate rocker and the valve.
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BMW Press Release:“BMW Four-Cylinder Petrol Engine with Valvetronic”; Author Unk.; Feb., 2001.
Ku Kim
Shui Fang
Brehob Diana D.
Denion Thomas
Dykema Gossett PLLC
Eshete Zelalem
Ford Global Technologies LLC
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