Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2011-08-23
2011-08-23
Denion, Thomas E (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090120, C184S006230
Reexamination Certificate
active
08001937
ABSTRACT:
An oil gallery for a variable valve timing apparatus of a cylinder head includes an advance oil supply passage that fluidly connects an oil control valve hole and a variable valve timing journal, a retard oil supply passage that fluidly connects the oil control valve hole and the variable valve timing journal, and an oil chamber in at least one of the oil supply passages. The oil chamber may have a slanted ceiling that may slant upward toward an outlet opening of the oil chamber. The uppermost point of the ceiling may be positioned at the oil outlet. The lowermost point of the outlet opening may be above the bottom surface of the oil chamber.
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Bernstein Daniel A
Denion Thomas E
Hyundai Motor Company
Kia Motors Corporation
Morgan & Lewis & Bockius, LLP
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