Roller finger follower for valve deactivation

Details Roller finger follower for valve deactivation Roller finger follower for valve deactivation

2011-04-19

2011-04-19

Denion, Thomas E (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390, C123S090440

Reexamination Certificate

active

07926455

ABSTRACT:
The finger follower has an inner and outer body and a torsional lost motion spring positioned at its lash adjuster end of the outer body. The torsional lost motion springs have a short leg that abuts the outer body and a long leg that contacts the inner body. The torsional spring is located above the pivot point of the finger follower so as to provide a low mass moment of inertia and to reduce the weight over the valve stem end of the follower.

REFERENCES:
patent: 5655488 (1997-08-01), Hampton et al.
patent: 7174869 (2007-02-01), Proschko et al.
patent: 2006/0260579 (2006-11-01), Proschko et al.
patent: 2007/0186890 (2007-08-01), Zurface et al.
patent: 2008/0295789 (2008-12-01), Manther et al.

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