Valve train for internal combustion engine

Details Valve train for internal combustion engine Valve train for internal combustion engine

2006-02-20

2010-11-02

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150

Reexamination Certificate

active

07823551

ABSTRACT:
A valve train for an internal combustion engine that uses motors to open/close intake valves of cylinders. The motors drive the intake valves for each of a plurality of groups of cylinders that perform an explosion stroke at substantially equal crank angle intervals. Since the intake valves are driven for each of the plurality of groups of cylinders that perform an explosion stroke at substantially equal crank angle intervals, the explosion stroke is performed regularly even when an operation is conducted with only a particular group of cylinders. This makes it possible to inhibit driveability deterioration.

REFERENCES:
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U.S. Appl. No. 11/597,563, Ezaki, et al.

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