Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2006-01-31
2006-01-31
Denion, Thomas (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090110, C123S090120, C123S347000, C701S103000
Reexamination Certificate
active
06990936
ABSTRACT:
A system and method control intake air of an internal combustion engine. The engine has at least one combustion chamber provided with intake valves together with an intake manifold provided with a throttle valve. The opening and closure timings of the intake valves are adjustable entirely independently by electromagnetic drivers from the crankshaft position to control the amount of intake air supplied to the combustion chamber. The system and method provide a response adjustment to variable valve timing control of the intake valves for unthrottled intake air control.
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Arai Masahiro
Nagaishi Hatsuo
Corrigan Jaime
Denion Thomas
Foley & Lardner LLP
Nissan Motor Co,. Ltd.
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