Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2011-08-23
2011-08-23
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090170, C123S346000
Reexamination Certificate
active
08001936
ABSTRACT:
In a control apparatus and a method for an internal combustion engine, a first cylinder group in which both of the intake and exhaust valves of each of the engine cylinders thereof are controllably stopped; and a second cylinder group in which a lift of the intake valve of each of the engine cylinders thereof is variably controlled are provided. The lift of the intake valve of each of the engine cylinders of the second cylinder group is controlled in order for an engine torque when the intake and exhaust valves of each of the cylinders of the first cylinder group are controlled to be stopped to be approximately equal to the engine torque by the first cylinder group and the second cylinder group before the intake and exhaust valves of each of the cylinders of the first cylinder group are controlled to be stopped.
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Chang Ching
Foley & Lardner LLP
Hitachi , Ltd.
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