Internal-combustion engines – Poppet valve operating mechanism – Lubrication
Reexamination Certificate
2008-02-01
2009-08-11
Kamen, Noah (Department: 3741)
Internal-combustion engines
Poppet valve operating mechanism
Lubrication
C123S184310
Reexamination Certificate
active
07571701
ABSTRACT:
An engine assembly may include an engine block, first and second cylinder heads, and first and second valvetrain covers fixed to the first and second cylinder heads. The engine block may include first and second cylinder banks disposed at an angle relative to one another to form a V-configuration. The first cylinder head may be fixed to the first bank and may include a first set of intake and exhaust ports. The second cylinder head may be fixed to the second bank and may include a second set of intake and exhaust ports. The first and second sets of exhaust ports may be located proximate a center of the V-configuration. The first valvetrain cover may include a first air inlet in communication with the first set of intake ports. The second valvetrain cover may include a second air inlet in communication with the second set of intake ports.
REFERENCES:
patent: 6095105 (2000-08-01), Lohr et al.
patent: 6167855 (2001-01-01), Mammarella et al.
Durkin Thomas Richard
Moran Robert J.
Rice Alan E.
GM Global Technology Operations Inc.
Harness & Dickey & Pierce P.L.C.
Kamen Noah
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