Variable valve control apparatus for engine and method thereof

Details Variable valve control apparatus for engine and method thereof Variable valve control apparatus for engine and method thereof

2005-05-24

2005-05-24

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090160, C123S090170, C123S308000, C123S432000, C123S568110, C123S568140

Reexamination Certificate

active

06895912

ABSTRACT:
In a low rotation region of an engine, valve timing of two intake valves is advanced and also one of two exhaust valves is driven by means of a cam with valve lift lower than that of the other exhaust valve, to thereby set a valve overlap period within which only one of the two exhaust valves is opened.

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