Valve actuator assembly for variable displacement of an...

Details Valve actuator assembly for variable displacement of an... Valve actuator assembly for variable displacement of an...

2007-01-16

2007-01-16

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390, C123S090440, C074S569000

Reexamination Certificate

active

11360028

ABSTRACT:
An engine valve actuator assembly is provided that includes a movable roller finger follower operatively engaged with a displaceable engine valve. A rotatable camshaft with a plurality of different cam lobes having different profiles rotates about the roller finger follower. A plurality of intermediate finger followers contact different ones of the cam lobes and pivot about a common axis. One of the intermediate finger followers is in continuous contact with the roller finger follower. One or more additional intermediate finger followers are separately selectively engageable for common pivoting with the intermediate finger follower that remains in continuous contact with the roller finger follower, thereby varying displacement of the engine valve depending upon the various cam profiles.

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